/**
 * Easy Calculators Theme - Main Stylesheet
 * Modern, high-conversion calculator website design system
 *
 * @package Easy_Calculators
 * @version 1.0.0
 */

/* ==========================================================================
   Base Reset & Mobile First
   ========================================================================== */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    width: 100%;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==========================================================================
   CSS Variables & Design Tokens
   ========================================================================== */

:root {
    /* Colors - Light Mode */
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-light: #60a5fa;
    
    --color-secondary: #10b981;
    --color-secondary-dark: #059669;
    --color-secondary-light: #34d399;
    
    --color-accent-finance: #3b82f6;
    --color-accent-health: #10b981;
    --color-accent-math: #8b5cf6;
    --color-accent-developer: #f59e0b;
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    --color-text-primary: #111827;
    --color-text-secondary: #6b7280;
    --color-text-muted: #9ca3af;
    
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f9fafb;
    --color-bg-tertiary: #f3f4f6;
    
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', var(--font-primary);
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
    
    /* Layout */
    --container-max-width: 1280px;
    --container-padding: 1rem;
}

/* Dark Mode */
.dark,
[data-theme="dark"] {
    --color-text-primary: #f9fafb;
    --color-text-secondary: #d1d5db;
    --color-text-muted: #9ca3af;
    
    --color-bg-primary: #111827;
    --color-bg-secondary: #1f2937;
    --color-bg-tertiary: #374151;
    
    --color-border: #374151;
    --color-border-light: #4b5563;
}

/* Dark Mode Calculator Button Fixes */
.dark .btn {
    color: var(--color-text-primary);
}

.dark .btn[data-number],
.dark .scientific-buttons .btn[data-number] {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.dark .btn[data-number]:hover,
.dark .scientific-buttons .btn[data-number]:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

/* Dark mode for action buttons without specific classes (like negate ±) */
.dark .btn[data-action]:not(.btn-primary):not(.btn-secondary):not(.btn-danger) {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.dark .btn[data-action]:not(.btn-primary):not(.btn-secondary):not(.btn-danger):hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
}

.dark .btn.btn-secondary {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-border);
}

.dark .btn.btn-secondary:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.dark .btn.btn-danger {
    background-color: var(--color-error);
    color: white;
}

.dark .btn.btn-danger:hover {
    background-color: #dc2626;
    color: white;
}

.dark .btn.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.dark .btn.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: white;
}

/* Dark mode for calculator display values */
.dark .scientific-display,
.dark .scientific-expression,
.dark .calculator-result,
.dark .result-value {
    color: var(--color-text-primary);
}

.dark .scientific-expression {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-secondary);
}

.dark .scientific-calc-display {
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-color: var(--color-border);
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-dark);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ==========================================================================
   Layout Components
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.container--full {
    max-width: none;
    padding: 0 var(--spacing-xl);
}

.section {
    padding: var(--spacing-3xl) 0;
}

/* Hub intro block (homepage "Your Free Calculator Hub") - text only */
.hub-intro-section {
    padding: var(--spacing-2xl) 0 var(--spacing-2xl);
}

.hub-intro-wrap {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.hub-intro-title {
    font-family: var(--font-heading);
    font-size: clamp(1.375rem, 2.5vw, var(--font-size-2xl));
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-lg);
    line-height: 1.3;
    letter-spacing: -0.02em;
}

.hub-intro-content {
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-size: var(--font-size-base);
    text-align: center;
}

.hub-intro-content p {
    margin: 0 0 1.125em;
}

.hub-intro-content p.hub-intro-lead {
    font-size: 1.0625rem;
    color: var(--color-text-primary);
    line-height: 1.75;
    margin-bottom: 1.125em;
}

.dark .hub-intro-content p.hub-intro-lead {
    color: var(--color-text-primary);
}

.hub-intro-content p.hub-intro-last {
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .hub-intro-content p.hub-intro-lead {
        font-size: var(--font-size-base);
    }
}

/* Home: Browse by Category – category cards */
.home-categories-section {
    background-color: var(--color-bg-secondary);
}

.home-categories-title {
    text-align: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

.home-categories-intro {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.home-category-cards {
    margin-top: 0;
}

.home-category-card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    height: 100%;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
    border-top: 4px solid var(--color-border);
}

.home-category-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.home-category-card--finance {
    border-top-color: var(--color-accent-finance);
}

.home-category-card--health {
    border-top-color: var(--color-accent-health);
}

.home-category-card--math {
    border-top-color: var(--color-accent-math);
}

.home-category-card--developer {
    border-top-color: var(--color-accent-developer);
}

.home-category-card--finance:hover {
    border-top-color: var(--color-accent-finance);
}

.home-category-card--health:hover {
    border-top-color: var(--color-accent-health);
}

.home-category-card--math:hover {
    border-top-color: var(--color-accent-math);
}

.home-category-card--developer:hover {
    border-top-color: var(--color-accent-developer);
}

.home-category-card-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
}

.home-category-card--finance .home-category-card-icon {
    background-color: rgba(59, 130, 246, 0.1);
}

.home-category-card--health .home-category-card-icon {
    background-color: rgba(16, 185, 129, 0.1);
}

.home-category-card--math .home-category-card-icon {
    background-color: rgba(139, 92, 246, 0.1);
}

.home-category-card--developer .home-category-card-icon {
    background-color: rgba(245, 158, 11, 0.1);
}

.home-category-card-title {
    font-family: var(--font-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-sm);
}

.home-category-card--finance .home-category-card-title {
    color: var(--color-accent-finance);
}

.home-category-card--health .home-category-card-title {
    color: var(--color-accent-health);
}

.home-category-card--math .home-category-card-title {
    color: var(--color-accent-math);
}

.home-category-card--developer .home-category-card-title {
    color: var(--color-accent-developer);
}

.home-category-card-description {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin: 0 0 var(--spacing-md);
    flex-grow: 1;
}

.home-category-card-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    margin-top: auto;
}

.home-category-card--finance .home-category-card-cta {
    color: var(--color-accent-finance);
}

.home-category-card--health .home-category-card-cta {
    color: var(--color-accent-health);
}

.home-category-card--math .home-category-card-cta {
    color: var(--color-accent-math);
}

.home-category-card--developer .home-category-card-cta {
    color: var(--color-accent-developer);
}

.home-category-card-cta svg {
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.home-category-card:hover .home-category-card-cta svg {
    transform: translateX(2px);
}

@media (max-width: 1024px) {
    .home-category-cards.grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .home-category-cards.grid-4 {
        grid-template-columns: 1fr;
    }
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Base responsive grid - handled in media queries below */

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

.btn-outline:hover {
    background-color: var(--color-primary);
    color: white;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   Form Elements
   ========================================================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Unit Converter Indicator */
.unit-converter-indicator {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-left: 0.5rem;
    font-weight: normal;
}

.unit-converter-indicator a {
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    transition: opacity var(--transition-fast);
}

.unit-converter-indicator a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.unit-converter-indicator a:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Mobile responsive for unit indicators */
@media (max-width: 768px) {
    .unit-converter-indicator {
        display: block;
        margin-left: 0;
        margin-top: 0.25rem;
    }
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Input Group - for side-by-side input and select */
.input-group {
    display: flex;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.input-group input[type="number"],
.input-group input[type="text"] {
    flex: 1;
    min-width: 0;
}

.input-group select {
    flex: 1;
    min-width: 0;
}

/* Ensure inputs and selects in input-group have consistent styling */
.input-group input,
.input-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    -webkit-appearance: none;
    appearance: none;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.input-group select {
    padding-right: 2.5rem;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
    cursor: pointer;
    -moz-appearance: none;
}

.input-group select:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233b82f6' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* Dark mode for input-group */
.dark .input-group input,
.dark .input-group select {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.dark .input-group select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

.dark .input-group select:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2360a5fa' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* Mobile responsive for input-group */
@media (max-width: 768px) {
    .input-group {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .input-group input,
    .input-group select {
        width: 100%;
    }
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    /* Safari fixes */
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

/* Select/Dropdown Styles */
.form-select,
select,
select.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    padding-right: 2.5rem; /* Space for dropdown arrow */
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 12px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast);
    cursor: pointer;
    /* Safari fixes */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-select:focus,
select:focus,
select.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%233b82f6' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* Dark mode select */
.dark .form-select,
.dark select,
.dark select.form-input {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239ca3af' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

.dark .form-select:focus,
.dark select:focus,
.dark select.form-input:focus {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2360a5fa' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
}

/* Safari-specific fixes */
@supports (-webkit-appearance: none) {
    .form-select,
    select,
    select.form-input {
        /* Ensure consistent styling in Safari */
        -webkit-appearance: none;
        appearance: none;
        /* Fix text rendering */
        -webkit-font-smoothing: antialiased;
        text-rendering: optimizeLegibility;
    }
    
    /* Fix for Safari iOS */
    @media screen and (-webkit-min-device-pixel-ratio: 0) {
        .form-select,
        select,
        select.form-input {
            padding-right: 2.5rem;
        }
    }
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    margin-bottom: var(--spacing-md);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
}

.card-body {
    color: var(--color-text-secondary);
}

/* Calculator Card */
.calculator-card {
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.calculator-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.calculator-card-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.calculator-card-icon.finance {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-accent-finance);
}

.calculator-card-icon.health {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-accent-health);
}

.calculator-card-icon.math {
    background-color: rgba(139, 92, 246, 0.1);
    color: var(--color-accent-math);
}

.calculator-card-icon.developer {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-accent-developer);
}

.calculator-card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.calculator-card-description {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    flex-grow: 1;
}

/* Category page: calculator cards with more content and accent */
.category-calculators-grid .calculator-card--category {
    padding: var(--spacing-xl);
    border-left: 4px solid var(--color-border);
}

.category-calculators-grid--finance .calculator-card--category {
    border-left-color: var(--color-accent-finance);
}

.category-calculators-grid--health .calculator-card--category {
    border-left-color: var(--color-accent-health);
}

.category-calculators-grid--math .calculator-card--category {
    border-left-color: var(--color-accent-math);
}

.category-calculators-grid--developer .calculator-card--category {
    border-left-color: var(--color-accent-developer);
}

/* Hover: keep category color for border (override global .calculator-card:hover blue) */
.category-calculators-grid--finance .calculator-card--category:hover {
    border-color: var(--color-accent-finance);
    border-left-color: var(--color-accent-finance);
}

.category-calculators-grid--health .calculator-card--category:hover {
    border-color: var(--color-accent-health);
    border-left-color: var(--color-accent-health);
}

.category-calculators-grid--math .calculator-card--category:hover {
    border-color: var(--color-accent-math);
    border-left-color: var(--color-accent-math);
}

.category-calculators-grid--developer .calculator-card--category:hover {
    border-color: var(--color-accent-developer);
    border-left-color: var(--color-accent-developer);
}

.calculator-card-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: var(--spacing-sm) 0 var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid var(--color-border-light);
}

.calculator-card-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
    margin-top: auto;
}

.category-calculators-grid--finance .calculator-card--category .calculator-card-cta {
    color: var(--color-accent-finance);
}

.category-calculators-grid--health .calculator-card--category .calculator-card-cta {
    color: var(--color-accent-health);
}

.category-calculators-grid--math .calculator-card--category .calculator-card-cta {
    color: var(--color-accent-math);
}

.category-calculators-grid--developer .calculator-card--category .calculator-card-cta {
    color: var(--color-accent-developer);
}

/* CTA hover: keep category color (no blue) */
.category-calculators-grid--finance .calculator-card--category:hover .calculator-card-cta {
    color: var(--color-primary-dark);
}

.category-calculators-grid--health .calculator-card--category:hover .calculator-card-cta {
    color: var(--color-secondary-dark);
}

.category-calculators-grid--math .calculator-card--category:hover .calculator-card-cta {
    color: #7c3aed;
}

.category-calculators-grid--developer .calculator-card--category:hover .calculator-card-cta {
    color: #d97706;
}

.calculator-card-cta svg {
    flex-shrink: 0;
    transition: transform var(--transition-fast);
}

.calculator-card--category:hover .calculator-card-cta svg {
    transform: translateX(2px);
}

/* Home: Popular calculators – same card style, mixed categories (accent per card) */
.popular-calculators-grid .calculator-card--category {
    padding: var(--spacing-xl);
    border-left: 4px solid var(--color-border);
}

.popular-calculators-grid .calculator-card--category.calculator-card--finance {
    border-left-color: var(--color-accent-finance);
}

.popular-calculators-grid .calculator-card--category.calculator-card--health {
    border-left-color: var(--color-accent-health);
}

.popular-calculators-grid .calculator-card--category.calculator-card--math {
    border-left-color: var(--color-accent-math);
}

.popular-calculators-grid .calculator-card--category.calculator-card--developer {
    border-left-color: var(--color-accent-developer);
}

.popular-calculators-grid .calculator-card--category.calculator-card--finance:hover {
    border-color: var(--color-accent-finance);
    border-left-color: var(--color-accent-finance);
}

.popular-calculators-grid .calculator-card--category.calculator-card--health:hover {
    border-color: var(--color-accent-health);
    border-left-color: var(--color-accent-health);
}

.popular-calculators-grid .calculator-card--category.calculator-card--math:hover {
    border-color: var(--color-accent-math);
    border-left-color: var(--color-accent-math);
}

.popular-calculators-grid .calculator-card--category.calculator-card--developer:hover {
    border-color: var(--color-accent-developer);
    border-left-color: var(--color-accent-developer);
}

.popular-calculators-grid .calculator-card--category.calculator-card--finance .calculator-card-cta {
    color: var(--color-accent-finance);
}

.popular-calculators-grid .calculator-card--category.calculator-card--health .calculator-card-cta {
    color: var(--color-accent-health);
}

.popular-calculators-grid .calculator-card--category.calculator-card--math .calculator-card-cta {
    color: var(--color-accent-math);
}

.popular-calculators-grid .calculator-card--category.calculator-card--developer .calculator-card-cta {
    color: var(--color-accent-developer);
}

.popular-calculators-grid .calculator-card--category.calculator-card--finance:hover .calculator-card-cta {
    color: var(--color-primary-dark);
}

.popular-calculators-grid .calculator-card--category.calculator-card--health:hover .calculator-card-cta {
    color: var(--color-secondary-dark);
}

.popular-calculators-grid .calculator-card--category.calculator-card--math:hover .calculator-card-cta {
    color: #7c3aed;
}

.popular-calculators-grid .calculator-card--category.calculator-card--developer:hover .calculator-card-cta {
    color: #d97706;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.dark .site-header {
    background-color: rgba(17, 24, 39, 0.95);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--container-padding);
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.site-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform var(--transition-base);
}

.site-logo:hover {
    transform: translateY(-1px);
}

.site-logo img {
    height: 40px;
    width: auto;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.site-logo:hover .logo-icon {
    transform: scale(1.05) rotate(-5deg);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.logo-main {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark .logo-main {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-top: -2px;
}

@media (max-width: 768px) {
    .logo-main {
        font-size: var(--font-size-lg);
    }
    
    .logo-sub {
        font-size: var(--font-size-xs);
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
}

/* Navigation */
.main-navigation {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
    padding: 0;
}

.nav-menu a {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
}

/* Search */
.header-search {
    position: relative;
}

.search-input {
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    width: 200px;
    transition: width var(--transition-base);
}

.search-input:focus {
    width: 300px;
    outline: none;
    border-color: var(--color-primary);
}

.search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    pointer-events: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
}

@media (max-width: 1024px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-navigation {
        display: none;
    }
    
    .main-navigation.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        border-top: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        z-index: 1000;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-lg);
    }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    background-color: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-column h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

/* Footer Logo */
.footer-logo {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-logo .logo-icon {
    color: var(--color-primary);
    flex-shrink: 0;
}

.footer-logo .logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.footer-logo .logo-main {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark .footer-logo .logo-main {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo .logo-sub {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-top: -2px;
}

.footer-logo-inline {
    text-decoration: none;
    display: inline-flex;
    align-items: baseline;
    gap: 0.25rem;
}

.footer-logo-inline .logo-main {
    font-size: inherit;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark .footer-logo-inline .logo-main {
    background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-logo-inline .logo-sub {
    font-size: inherit;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.05em;
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-column a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.footer-column a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    padding-top: var(--spacing-xl);
    border-top: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.footer-bottom a {
    color: inherit;
    text-decoration: none;
}

/* Footer responsive moved to main responsive section */

/* ==========================================================================
   Ad Units
   ========================================================================== */

.ad-unit {
    background-color: var(--color-bg-tertiary);
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    text-align: center;
    margin: var(--spacing-xl) 0;
    min-height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-placeholder {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.ad-label {
    display: block;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-muted);
}

.ad-horizontal {
    width: 100%;
    min-height: 90px;
}

.ad-vertical {
    width: 300px;
    min-height: 250px;
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ==========================================================================
   Calculator Specific Styles
   ========================================================================== */

.calculator-container {
    background-color: var(--color-bg-primary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
}

/* Wide card for tools that need more space (e.g. JSON Formatter) */
.calculator-container--wide {
    max-width: 100%;
    padding: var(--spacing-2xl);
}

.calculator-form {
    max-width: 600px;
}

.calculator-container--wide .calculator-form {
    max-width: 100%;
}

.calculator-result {
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

/* JSON Formatter: three-column layout — Input | Buttons | Output (like jsonformatter.org) */
/* JSON Formatter — toolbar + two-panel inline layout */
.json-formatter-layout {
    max-width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Horizontal action bar */
.json-formatter-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
}

.json-formatter-toolbar .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    white-space: nowrap;
}

/* Two side-by-side panels */
.json-formatter-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: stretch;
}

/* Each panel */
.json-fmt-panel {
    display: flex;
    flex-direction: column;
    min-height: 500px;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
}

.json-fmt-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: var(--color-bg-secondary, #f9fafb);
    border-bottom: 1px solid var(--color-border);
}

.json-fmt-panel-label {
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary);
}

/* Search bar */
.json-fmt-search {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-primary, #fff);
}

.json-fmt-search-icon {
    flex-shrink: 0;
    color: var(--color-text-muted);
}

.json-fmt-search-input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 13px;
    color: var(--color-text-primary);
    padding: 4px 0;
}

.json-fmt-search-input::placeholder {
    color: var(--color-text-muted);
}

.json-fmt-search-count {
    font-size: 12px;
    color: var(--color-text-muted);
    white-space: nowrap;
    min-width: 56px;
    text-align: right;
}

.json-fmt-search-nav {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    background: var(--color-bg-secondary, #f9fafb);
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: 10px;
    line-height: 1;
    transition: all 0.12s ease;
}

.json-fmt-search-nav:hover {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

/* Input textarea inside panel */
.json-fmt-panel .json-formatter-textarea {
    flex: 1;
    min-height: 0;
    border: none;
    border-radius: 0;
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
    font-size: 14px;
    line-height: 1.7;
    resize: none;
    padding: 16px;
    outline: none;
}

/* Output code area */
.json-fmt-code-wrap {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 16px;
}

.json-fmt-pre {
    margin: 0;
    white-space: pre;
    word-wrap: normal;
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
    font-size: 14px;
    line-height: 1.7;
    color: var(--color-text-primary);
}

/* States shown inside the output panel body */
.json-fmt-panel .json-error-box {
    background: #fef2f2;
    border: 1px solid #dc2626;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    margin: 16px;
    color: #b91c1c;
    font-size: var(--font-size-base);
}

.json-fmt-panel .json-error-box .json-error-location {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.json-fmt-panel .json-error-box .json-error-message {
    margin: 0;
    line-height: 1.6;
}

.json-fmt-panel .json-success-badge {
    color: var(--color-success, #059669);
    font-weight: 600;
    font-size: var(--font-size-base);
    padding: 16px;
}

.json-fmt-panel .json-fix-note {
    font-size: var(--font-size-base);
    color: var(--color-primary);
    margin: 0;
    padding: 12px 16px 0;
}

.json-fmt-panel .json-output-placeholder {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    padding: 16px;
}

/* Search highlight marks */
.json-fmt-match {
    background: #fde68a;
    color: #000;
    border-radius: 2px;
    padding: 1px 0;
}

.json-fmt-match--active {
    background: #f59e0b;
    color: #000;
    outline: 2px solid #d97706;
    outline-offset: -1px;
}

/* Dark mode adjustments */
.dark .json-fmt-match {
    background: #854d0e;
    color: #fef3c7;
}

.dark .json-fmt-match--active {
    background: #d97706;
    color: #000;
    outline-color: #f59e0b;
}

/* Mobile: stack panels vertically */
@media (max-width: 900px) {
    .json-formatter-panels {
        grid-template-columns: 1fr;
    }

    .json-fmt-panel {
        min-height: 360px;
    }
}

/* Hero section for full-width dev tools — tool appears first, full viewport width */
.calculator-hero-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--color-bg-primary);
}

.calculator-hero-section .calculator-container--wide {
    height: 92vh;
    display: flex;
    flex-direction: column;
    background: none;
    border: none;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    overflow: hidden;
}

.calculator-hero-section .calculator-container--wide #calculator-app {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.calculator-hero-section .calculator-container--wide .json-formatter-layout {
    flex: 1;
    min-height: 0;
}

.calculator-hero-section .calculator-container--wide .json-formatter-panels {
    flex: 1;
    min-height: 0;
}

.calculator-hero-section .json-fmt-panel {
    height: 100%;
    max-height: 100%;
    overflow: hidden;
}

.calculator-hero-section .json-fmt-panel .json-formatter-textarea {
    flex: 1;
    min-height: 0;
    overflow: auto;
}

.calculator-hero-section .json-fmt-code-wrap {
    flex: 1;
    min-height: 0;
    overflow: auto;
}

/* Color Picker: shorter hero — doesn't need 92vh like text-editor tools */
.calculator-hero-section:has(#calculator-app[data-calculator="color-picker"]) .calculator-container--wide {
    height: 68vh;
}

/* Full-width calculator section (e.g. JSON Formatter, Base64, JWT): no sidebar, full width */
.calculator-section--full-width .calculator-main-grid {
    grid-template-columns: 1fr;
}

/* Shared layout for Base64 and JWT Decoder: two columns, buttons in middle, large readable areas */
.dev-tool-layout {
    max-width: 100%;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--spacing-lg);
    align-items: stretch;
}

.dev-tool-layout .dev-tool-panel {
    display: flex;
    flex-direction: column;
    min-height: 320px;
}

.dev-tool-layout .dev-tool-panel .form-label {
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.dev-tool-layout .dev-tool-textarea {
    flex: 1;
    min-height: 360px;
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
    font-size: 15px;
    line-height: 1.6;
    resize: vertical;
    padding: var(--spacing-lg);
}

.dev-tool-layout .dev-tool-actions-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 var(--spacing-md);
    min-width: 120px;
}

.dev-tool-layout .dev-tool-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.dev-tool-layout .dev-tool-actions .btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-base);
    white-space: nowrap;
}

.dev-tool-layout .dev-tool-output-wrap {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    min-height: 360px;
    overflow: auto;
}

.dev-tool-layout .dev-tool-output-wrap pre,
.dev-tool-layout .dev-tool-output-wrap .dev-tool-pre {
    margin: 0 0 var(--spacing-md) 0;
    white-space: pre-wrap;
    word-break: break-word;
    font-family: ui-monospace, "Cascadia Code", "Source Code Pro", Menlo, Consolas, monospace;
    font-size: 15px;
    line-height: 1.6;
}

.dev-tool-layout .dev-tool-output-wrap pre:last-child,
.dev-tool-layout .dev-tool-output-wrap .dev-tool-pre:last-child {
    margin-bottom: 0;
}

.dev-tool-layout .dev-tool-error-box {
    background: #fef2f2;
    border: 1px solid #dc2626;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    color: #b91c1c;
    font-size: var(--font-size-base);
}

.dev-tool-layout .dev-tool-section-label {
    font-weight: 600;
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
}

@media (max-width: 900px) {
    .dev-tool-layout {
        grid-template-columns: 1fr;
        grid-template-areas: "input" "actions" "output";
    }

    .dev-tool-layout .dev-tool-input-panel {
        grid-area: input;
    }

    .dev-tool-layout .dev-tool-actions-center {
        grid-area: actions;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        padding: var(--spacing-md) 0;
    }

    .dev-tool-layout .dev-tool-actions {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .dev-tool-layout .dev-tool-output-panel {
        grid-area: output;
    }

    .dev-tool-layout .dev-tool-textarea,
    .dev-tool-layout .dev-tool-output-wrap {
        min-height: 280px;
    }
}

.result-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.05) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.hero-content h1 {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Category Header */
.category-header {
    padding: var(--spacing-3xl) 0;
    position: relative;
    overflow: hidden;
}

.category-header-title {
    color: white !important;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    font-weight: var(--font-weight-bold);
}

.category-header-description {
    color: rgba(255,255,255,0.95) !important;
    text-shadow: 0 1px 5px rgba(0,0,0,0.1);
}

/* Category-specific gradient backgrounds */
.category-header-finance {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #1d4ed8 100%) !important;
}

.category-header-health {
    background: linear-gradient(135deg, #10b981 0%, #059669 50%, #047857 100%) !important;
}

.category-header-math {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 50%, #6d28d9 100%) !important;
}

.category-header-developer {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #b45309 100%) !important;
}

/* Dark mode adjustments - ensure text remains visible */
.dark .category-header {
    /* Dark mode keeps the same gradients but ensures text contrast */
}

.dark .category-header-title {
    color: white !important;
    text-shadow: 0 2px 15px rgba(0,0,0,0.4);
}

.dark .category-header-description {
    color: rgba(255,255,255,0.95) !important;
    text-shadow: 0 1px 8px rgba(0,0,0,0.3);
}

/* Ensure category headers work in light mode too */
body:not(.dark) .category-header-title,
body:not(.dark) .category-header-description {
    color: white !important;
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--color-primary);
}

.theme-toggle .icon-moon {
    display: none;
}

.dark .theme-toggle .icon-sun {
    display: none;
}

.dark .theme-toggle .icon-moon {
    display: block;
}

/* Breadcrumb */
.breadcrumb-section a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.breadcrumb-section a:hover {
    color: var(--color-primary);
}

/* FAQ Accordion */
.faq-item {
    cursor: pointer;
}

.faq-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.faq-item p {
    color: var(--color-text-secondary);
    margin-bottom: 0;
}

/* Sidebar */
.calculator-sidebar {
    position: sticky;
    top: 100px;
    height: fit-content;
}

.calculator-sidebar ul {
    list-style: none;
    padding: 0;
}

.calculator-sidebar li {
    margin-bottom: var(--spacing-sm);
}

.calculator-sidebar a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: color var(--transition-fast);
}

.calculator-sidebar a:hover {
    color: var(--color-primary);
}

/* Loading States */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(59, 130, 246, 0.3);
    border-radius: 50%;
    border-top-color: var(--color-primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================================================
   Pagination Styles
   ========================================================================== */

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin: var(--spacing-xl) 0;
}

.pagination a,
.pagination span {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
    min-width: 40px;
    text-align: center;
}

.pagination a:hover {
    background-color: var(--color-primary);
    color: var(--color-bg-primary);
    border-color: var(--color-primary);
}

.pagination .current {
    background-color: var(--color-primary);
    color: var(--color-bg-primary);
    border-color: var(--color-primary);
    font-weight: var(--font-weight-semibold);
}

.pagination .dots {
    border: none;
    cursor: default;
}

/* ==========================================================================
   Form Styles (Enhanced)
   ========================================================================== */

.success-message {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.error-message {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

#contact-form button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-textarea {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: all var(--transition-base);
    resize: vertical;
    width: 100%;
}

.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-textarea::placeholder {
    color: var(--color-text-muted);
}

/* Contact Form Specific */
#contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

#contact-form label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

#contact-form .form-input,
#contact-form .form-textarea {
    width: 100%;
}

/* ==========================================================================
   Blog Styles
   ========================================================================== */

.blog-posts article {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.blog-posts article:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.entry-meta a {
    text-decoration: none;
    transition: color var(--transition-base);
}

.entry-meta a:hover {
    color: var(--color-primary-dark);
}

.post-tags a {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    text-decoration: none;
    transition: all var(--transition-base);
}

.post-tags a:hover {
    background-color: var(--color-primary);
    color: var(--color-bg-primary);
}

/* Blog index: 3 cards per row with thumbnails */
.blog-index-section .blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.blog-index-section .blog-card {
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.blog-index-section .blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-index-section .blog-card-image-link {
    display: block;
    line-height: 0;
    background-color: var(--color-bg-tertiary);
}

.blog-index-section .blog-card-image-link img {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.blog-index-section .blog-card-body {
    padding: var(--spacing-lg);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.blog-index-section .blog-card-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
    line-height: 1.35;
}

.blog-index-section .blog-card-title a {
    color: inherit;
    text-decoration: none;
}

.blog-index-section .blog-card-title a:hover {
    color: var(--color-primary);
}

.blog-index-section .blog-card-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
}

.blog-index-section .blog-card-excerpt {
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    flex: 1;
}

.blog-index-section .blog-card-excerpt p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
    .grid-4 { 
        grid-template-columns: repeat(2, 1fr); 
    }
    
    .grid-3 { 
        grid-template-columns: repeat(2, 1fr); 
    }

    .blog-index-section .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calculator-section > .container > div[style*="grid"] {
        grid-template-columns: 1fr !important;
    }
    
    .calculator-sidebar {
        position: static;
        margin-top: var(--spacing-xl);
    }
    
    /* Footer Responsive */
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Hero Search */
    .hero-search input {
        font-size: var(--font-size-lg) !important;
    }
}

@media (max-width: 768px) {
    /* Force single column for all grids on mobile */
    .grid-4,
    .grid-3,
    .grid-2,
    .grid {
        grid-template-columns: 1fr !important;
    }
    
    /* Home page specific - ensure single column */
    .categories-section .grid-4,
    .popular-section .grid-4,
    .trust-section .grid-3 {
        grid-template-columns: 1fr !important;
    }

    .blog-index-section .blog-grid {
        grid-template-columns: 1fr;
    }
    
    :root {
        --font-size-5xl: 2.25rem;
        --font-size-4xl: 1.875rem;
        --font-size-3xl: 1.5rem;
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.125rem;
        --container-padding: 1rem;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }

    .container--full {
        padding: 0 var(--spacing-md);
    }

    .calculator-hero-section {
        padding: var(--spacing-md) 0;
    }

    .calculator-hero-section .calculator-container--wide {
        height: auto;
    }

    .calculator-hero-section .json-fmt-panel {
        height: 60vh;
        max-height: 60vh;
    }

    /* Header Responsive */
    .header-container {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .site-logo {
        flex: 1;
        min-width: 0;
    }
    
    .site-logo .logo-wrapper {
        gap: var(--spacing-xs);
    }
    
    .logo-icon {
        width: 24px !important;
        height: 24px !important;
    }
    
    .mobile-menu-toggle {
        order: 2;
        margin-left: auto;
    }
    
    .main-navigation.active {
        width: 100%;
        order: 3;
        margin-top: var(--spacing-md);
        padding: var(--spacing-md);
        background-color: var(--color-bg-secondary);
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-md);
    }
    
    .main-navigation.active .nav-menu {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }
    
    .main-navigation.active .nav-menu li {
        width: 100%;
    }
    
    .main-navigation.active .nav-menu a {
        display: block;
        width: 100%;
        padding: var(--spacing-md);
    }
    
    .main-navigation.active .theme-toggle {
        margin-top: var(--spacing-md);
        width: 100%;
        justify-content: center;
    }
    
    /* Hero Section Responsive */
    .hero-content {
        padding: 0 var(--spacing-md);
    }
    
    .hero-content h1 {
        font-size: var(--font-size-2xl);
        line-height: 1.2;
    }
    
    .hero-content p {
        font-size: var(--font-size-base) !important;
    }
    
    .hero-search {
        width: 100% !important;
        max-width: 100% !important;
    }
    
    .hero-search input {
        font-size: var(--font-size-base) !important;
        padding-left: 2.5rem !important;
    }
    
    /* Calculator Page Responsive */
    .calculator-section > .container > div[style*="grid"] {
        grid-template-columns: 1fr !important;
    }
    
    .calculator-sidebar {
        margin-top: var(--spacing-xl);
        order: 2;
    }
    
    .calculator-container {
        padding: var(--spacing-lg) !important;
    }
    
    .calculator-form {
        max-width: 100%;
    }
    
    .form-input,
    .form-select,
    textarea.form-input {
        font-size: var(--font-size-base);
        padding: var(--spacing-md);
    }
    
    /* Calculator Content Responsive */
    .explanation-section,
    .how-it-works-section,
    .usage-section .card,
    .faq-item {
        padding: var(--spacing-lg) !important;
    }
    
    .explanation-section h2,
    .how-it-works-section h2,
    .usage-section h2,
    .faq-section h2 {
        font-size: var(--font-size-xl) !important;
    }
    
    /* Breadcrumb Responsive */
    .breadcrumb-section {
        padding: var(--spacing-sm) 0 !important;
        font-size: var(--font-size-sm);
    }
    
    .breadcrumb-section nav {
        overflow-x: auto;
        white-space: nowrap;
    }
    
    /* Category Header Responsive */
    .category-header {
        padding: var(--spacing-xl) 0 !important;
    }
    
    .category-header h1 {
        font-size: var(--font-size-2xl) !important;
    }
    
    .category-header p {
        font-size: var(--font-size-base) !important;
        padding: 0 var(--spacing-md);
    }
    
    /* Popular Section Responsive */
    .popular-section > .container > div[style*="flex"] {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: var(--spacing-md) !important;
    }
    
    /* Trust Section Responsive */
    .trust-section .card {
        padding: var(--spacing-lg);
    }
    
    .trust-section .card > div[style*="font-size: 3rem"] {
        font-size: 2rem !important;
    }
    
    /* Footer Responsive */
    .footer-grid {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-xl);
    }
    
    .footer-column {
        text-align: center;
    }
    
    .footer-column h4 {
        margin-bottom: var(--spacing-md);
    }
    
    .footer-bottom {
        text-align: center;
        padding: var(--spacing-md) 0;
    }
    
    /* Contact form responsive */
    .contact-content {
        grid-template-columns: 1fr !important;
    }
    
    .contact-form-wrapper {
        max-width: 100% !important;
    }
    
    /* Blog responsive */
    .blog-posts .grid-3 {
        grid-template-columns: 1fr;
    }
    
    /* Pagination responsive */
    .pagination {
        gap: var(--spacing-xs);
        flex-wrap: wrap;
    }
    
    .pagination a,
    .pagination span {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-sm);
        min-width: 36px;
    }
    
    /* Calculator charts responsive */
    .calculator-result > div[style*="grid"] {
        grid-template-columns: 1fr !important;
    }
    
    .calculator-result canvas {
        max-height: 250px !important;
    }
    
    /* Calculator Cards Responsive */
    .calculator-card {
        padding: var(--spacing-lg);
    }
    
    .calculator-card-icon {
        font-size: 2rem !important;
        width: 60px !important;
        height: 60px !important;
    }
    
    .calculator-card-title {
        font-size: var(--font-size-lg) !important;
    }
    
    .calculator-card-description {
        font-size: var(--font-size-sm) !important;
    }
    
    /* Buttons Responsive */
    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
        width: 100%;
        max-width: 100%;
    }
    
    /* Cards Responsive */
    .card {
        padding: var(--spacing-lg);
    }
    
    /* Form Groups Responsive */
    .form-group {
        margin-bottom: var(--spacing-md);
    }
    
    /* Result Values Responsive */
    .result-value {
        font-size: var(--font-size-2xl) !important;
    }
    
    /* Related Calculators Responsive */
    .related-calculators .grid {
        grid-template-columns: 1fr !important;
    }
    
    /* About Page Responsive */
    .entry-content > div[style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
    }
    
    .entry-content .btn {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
    
    /* Calculators Page Responsive */
    .category-section > div[style*="flex"] {
        flex-direction: column !important;
        align-items: flex-start !important;
    }
    
    .calculators-summary > div[style*="flex"] {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    
    .calculators-summary .btn {
        width: 100%;
    }
    
    /* Entry Header Responsive */
    .entry-header h1 {
        font-size: var(--font-size-2xl) !important;
    }
    
    .entry-header p {
        font-size: var(--font-size-base) !important;
    }
    
    /* Contact Form Responsive */
    .contact-form {
        padding: var(--spacing-lg) !important;
    }
    
    /* Table Responsive */
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
    
    /* Image Responsive */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* Prevent horizontal scroll */
    * {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    html,
    body {
        overflow-x: hidden;
        width: 100%;
        position: relative;
    }
    
    /* Ensure all containers are contained */
    .container,
    .header-container,
    .footer-container {
        max-width: 100%;
        overflow-x: hidden;
    }
    
    /* Fix any elements that might overflow */
    pre,
    code {
        overflow-x: auto;
        word-wrap: break-word;
    }
    
    /* Ensure images don't overflow */
    img,
    svg,
    video,
    iframe {
        max-width: 100%;
        height: auto;
    }
    
    /* Fix calculator container */
    .calculator-container {
        overflow-x: hidden;
    }

    .calculator-hero-section .calculator-container {
        overflow: visible;
    }
    
    /* Fix form elements */
    input,
    textarea,
    select {
        max-width: 100%;
    }
    
    /* Container padding on mobile */
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    /* Override inline grid styles for mobile */
    div[style*="grid-template-columns: 1fr 1fr"],
    div[style*="grid-template-columns: 1fr 300px"],
    div[style*="grid-template-columns: repeat(2, 1fr)"] {
        grid-template-columns: 1fr !important;
    }
    
    /* Override inline flex styles for mobile */
    div[style*="display: flex"] {
        flex-wrap: wrap !important;
    }
    
    div[style*="justify-content: space-between"] {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: var(--spacing-md) !important;
    }
    
    /* Override max-width constraints on mobile */
    div[style*="max-width: 800px"],
    div[style*="max-width: 900px"],
    div[style*="max-width: 600px"],
    div[style*="max-width: 700px"] {
        max-width: 100% !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    /* Calculator page grid override */
    .calculator-section > .container > div[style*="grid-template-columns: 1fr 300px"] {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-lg) !important;
    }
    
    /* Hero content responsive */
    .hero-content[style*="max-width: 800px"] {
        max-width: 100% !important;
        padding: 0 var(--spacing-md);
    }
    
    /* Category header responsive */
    div[style*="max-width: 800px"][style*="margin: 0 auto"] {
        max-width: 100% !important;
        padding: 0 var(--spacing-md);
    }
    
    /* Entry content responsive */
    .entry-content[style*="max-width: 900px"] {
        max-width: 100% !important;
    }
    
    /* Contact form wrapper responsive */
    .contact-form-wrapper[style*="max-width: 600px"] {
        max-width: 100% !important;
    }
    
    /* Search form responsive */
    form[style*="max-width: 600px"] {
        max-width: 100% !important;
    }
    
    /* Privacy policy article responsive */
    article[style*="max-width: 900px"] {
        max-width: 100% !important;
    }
    
    /* Calculator charts grid override */
    .calculator-result > div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
    
    /* About page grid cards */
    .entry-content div[style*="grid-template-columns: repeat(auto-fit, minmax(250px, 1fr))"] {
        grid-template-columns: 1fr !important;
    }
    
    /* Button groups responsive */
    div[style*="display: flex"][style*="gap"] {
        flex-direction: column !important;
    }
    
    div[style*="display: flex"][style*="justify-content: center"] {
        flex-wrap: wrap !important;
    }
    
    /* Category section flex override */
    .category-section div[style*="display: flex"][style*="align-items: center"] {
        flex-direction: column !important;
        align-items: flex-start !important;
    }
    
    /* Popular section header responsive */
    .popular-section div[style*="display: flex"][style*="justify-content: space-between"] {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: var(--spacing-md) !important;
    }
    
    /* Calculators summary buttons */
    .calculators-summary div[style*="display: flex"] {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    
    /* About page button group */
    .entry-content div[style*="display: flex"][style*="flex-wrap: wrap"] {
        flex-direction: column !important;
    }
    
    /* Search results flex */
    .search-results div[style*="display: flex"] {
        flex-direction: column !important;
    }
    
    /* Font size overrides for mobile */
    p[style*="font-size: var(--font-size-lg)"] {
        font-size: var(--font-size-base) !important;
    }
    
    h1[style*="font-size: var(--font-size-3xl)"] {
        font-size: var(--font-size-2xl) !important;
    }
    
    h2[style*="font-size: var(--font-size-2xl)"] {
        font-size: var(--font-size-xl) !important;
    }
    
    /* Input padding responsive */
    input[style*="padding-left: 3rem"] {
        padding-left: 2.5rem !important;
        font-size: var(--font-size-base) !important;
    }
    
    /* Text alignment responsive */
    div[style*="text-align: center"] {
        text-align: left !important;
    }
    
    .hero-content[style*="text-align: center"] {
        text-align: center !important;
    }
    
    /* Category header text center override */
    .category-header div[style*="text-align: center"] {
        text-align: center !important;
    }
    
    /* Entry header text center override */
    .entry-header[style*="text-align: center"] {
        text-align: center !important;
    }
}

/* Calculator Charts Styling */
.calculator-result canvas {
    max-width: 100%;
    height: auto !important;
}

.calculator-result > div[style*="grid"] {
    display: grid;
    gap: var(--spacing-lg);
}

.calculator-result h4 {
    color: var(--color-text);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

/* Additional Mobile Responsive Overrides */
@media (max-width: 480px) {
    /* Extra small devices */
    :root {
        --font-size-5xl: 1.875rem;
        --font-size-4xl: 1.5rem;
        --font-size-3xl: 1.25rem;
        --font-size-2xl: 1.125rem;
        --font-size-xl: 1rem;
        --container-padding: 0.75rem;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .calculator-container {
        padding: var(--spacing-md) !important;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    /* Smaller spacing on very small screens */
    .hero-content h1 {
        font-size: var(--font-size-xl) !important;
        line-height: 1.3;
    }
    
    .hero-content p {
        font-size: var(--font-size-sm) !important;
    }
    
    /* Calculator cards smaller */
    .calculator-card {
        padding: var(--spacing-md);
    }
    
    .calculator-card-icon {
        font-size: 1.5rem !important;
        width: 50px !important;
        height: 50px !important;
    }
    
    .calculator-card-title {
        font-size: var(--font-size-base) !important;
    }
    
    .calculator-card-description {
        font-size: var(--font-size-xs) !important;
    }
    
    /* Header on very small screens */
    .header-container {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .logo-main {
        font-size: var(--font-size-base) !important;
    }
    
    .logo-sub {
        font-size: 0.65rem !important;
    }
    
    .mobile-menu-toggle {
        padding: var(--spacing-xs);
    }
    
    .mobile-menu-toggle svg {
        width: 20px;
        height: 20px;
    }
}

/* Landscape mobile orientation */
@media (max-width: 768px) and (orientation: landscape) {
    .hero-section {
        padding: var(--spacing-md) 0;
    }
    
    .hero-content h1 {
        font-size: var(--font-size-xl) !important;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .btn {
        min-height: 44px;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .nav-menu a {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
    
    .mobile-menu-toggle {
        min-width: 44px;
        min-height: 44px;
    }
    
    .theme-toggle {
        min-width: 44px;
        min-height: 44px;
    }
    
    /* Calculator inputs */
    .form-input,
    .form-select,
    textarea.form-input {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
        /* Safari fixes */
        -webkit-appearance: none;
        appearance: none;
    }
    
    /* Safari select dropdown fixes for touch devices */
    .form-select,
    select {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 0.75rem center;
        background-size: 12px;
        padding-right: 2.5rem;
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
    }
    
    /* Links */
    a {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
}