/**
 * Mobile-First Styles for dict.ebhor.com
 * Simple, modern, and performant CSS
 */

/* ===== CSS Custom Properties (Design System) ===== */
:root {
    /* Colors */
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #f093fb;

    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-muted: #718096;

    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-card: #ffffff;

    --border: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 0.75rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-devanagari: 'Noto Sans Devanagari', 'Inter', sans-serif;

    /* Borders */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode support */
[data-theme="dark"] {
    --text-primary: #f7fafc;
    --text-secondary: #cbd5e0;
    --text-muted: #a0aec0;

    --bg-primary: #1a202c;
    --bg-secondary: #2d3748;
    --bg-card: #2d3748;

    --border: #4a5568;
    --shadow: rgba(0, 0, 0, 0.3);
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --text-primary: #f7fafc;
        --text-secondary: #cbd5e0;
        --text-muted: #a0aec0;

        --bg-primary: #1a202c;
        --bg-secondary: #2d3748;
        --bg-card: #2d3748;

        --border: #4a5568;
        --shadow: rgba(0, 0, 0, 0.3);
    }
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 1.2rem;
    margin-left: var(--space-md);
}

.theme-toggle:hover {
    background: var(--border);
}

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

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

[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: none;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
}

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

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

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===== Header ===== */
.site-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
}

.header-actions {
    display: flex;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    font-size: 1.5rem;
}

.main-nav {
    display: none;
    gap: var(--space-lg);
}

@media (max-width: 767px) {
    .main-nav {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        left: -280px;
        /* Drawer hidden on the left */
        width: 280px;
        height: 100vh;
        background: var(--bg-card);
        padding: var(--space-2xl) var(--space-lg);
        z-index: 1001;
        /* Above overlay */
        transition: var(--transition);
        box-shadow: 4px 0 10px var(--shadow);
    }

    .main-nav.active {
        left: 0;
    }

    .main-nav a {
        font-size: 1.1rem;
        padding: var(--space-md) 0;
        border-bottom: 1px solid var(--border);
    }
}

.main-nav a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--space-sm) 0;
    border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
}

.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.nav-overlay.active {
    display: block;
}

/* Header search */
.header-search {
    padding: var(--space-md) 0;
    position: relative;
}

.search-form {
    display: flex;
    gap: var(--space-sm);
}

.search-input {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.search-button {
    padding: var(--space-sm) var(--space-lg);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
}

.search-button:hover {
    background: var(--primary-dark);
}

/* ===== Hero Section ===== */
.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: var(--space-2xl) 0;
    text-align: center;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    margin-bottom: var(--space-md);
    color: white;
}

.gradient-text {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.25rem);
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

.hero-search {
    max-width: 600px;
    margin: 0 auto;
}

.language-switch {
    margin-top: var(--space-md);
}

.switch-link {
    color: white;
    opacity: 0.9;
    font-size: 0.9rem;
    text-decoration: underline;
}

.switch-link:hover {
    opacity: 1;
    color: white;
}

.search-form-large {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

@media (max-width: 480px) {
    .search-form-large {
        flex-direction: column;
    }

    .search-button-large {
        width: 100%;
    }
}

.search-input-large {
    flex: 1;
    padding: var(--space-md) var(--space-lg);
    border: none;
    border-radius: var(--radius-lg);
    font-size: 1.125rem;
    box-shadow: 0 4px 6px var(--shadow);
    background: var(--bg-card);
    color: var(--text-primary);
}

.search-button-large {
    padding: var(--space-md) var(--space-xl);
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.search-button-large:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow);
}

.language-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
}

.language-selector select {
    padding: var(--space-sm) var(--space-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.9rem;
    cursor: pointer;
}

.language-selector .arrow {
    font-size: 1.5rem;
}

/* ===== Cards & Grids ===== */
.language-pairs-grid,
.features-grid {
    display: grid;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.language-pair-card,
.feature-card {
    background: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.language-pair-card:hover,
.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px var(--shadow);
    border-color: var(--primary);
}

.card-icon,
.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

/* ===== Word Tags ===== */
.word-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.word-tag {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    transition: var(--transition);
}

.word-tag:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ===== Sections ===== */
section {
    padding: var(--space-2xl) 0;
}

.section-title {
    text-align: center;
    margin-bottom: var(--space-xl);
}

/* ===== Footer ===== */
.site-footer {
    background: var(--bg-secondary);
    padding: var(--space-2xl) 0 var(--space-md);
    margin-top: var(--space-2xl);
    border-top: 1px solid var(--border);
}

.footer-content {
    display: grid;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer-section h3 {
    margin-bottom: var(--space-md);
    font-size: 1rem;
}

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

.footer-section li {
    margin-bottom: var(--space-sm);
}

.footer-section a {
    color: var(--text-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.ai-disclaimer {
    margin-top: var(--space-sm);
    font-size: 0.85rem;
}

/* ===== Responsive Design ===== */
@media (min-width: 768px) {
    .main-nav {
        display: flex;
    }

    .mobile-menu-toggle {
        display: none;
    }

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

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

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

@media (min-width: 1024px) {
    .language-pairs-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

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

/* ===== Word Page Specific ===== */
.breadcrumbs {
    background: var(--bg-secondary);
    padding: var(--space-md) 0;
}

.breadcrumbs a {
    color: var(--text-secondary);
}

.word-page {
    padding: var(--space-xl) 0;
}

.word-header {
    text-align: center;
    padding: var(--space-xl) 0;
}

.word-title {
    font-size: clamp(2.5rem, 7vw, 4rem);
    margin-bottom: var(--space-md);
    font-family: var(--font-devanagari);
}

.word-pronunciation {
    color: var(--text-secondary);
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.audio-button {
    padding: var(--space-sm) var(--space-lg);
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    font-size: 1rem;
}

.primary-meaning {
    background: var(--bg-secondary);
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    margin: var(--space-xl) 0;
}

.pos-badge,
.difficulty-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    margin-right: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.short-meaning {
    font-size: 1.25rem;
    font-weight: 500;
}

.examples-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.example-item {
    padding: var(--space-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.example-source {
    font-weight: 500;
    margin-bottom: var(--space-xs);
}

.example-target {
    color: var(--text-secondary);
}

/* ===== Utility Classes ===== */
.text-center {
    text-align: center;
}

.mt-md {
    margin-top: var(--space-md);
}

/* Copy and Share Buttons */
.meaning-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-md);
}

.copy-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.85rem;
    white-space: nowrap;
    transition: var(--transition);
}

.copy-btn:hover {
    background: var(--border);
    color: var(--text-primary);
}

.share-section {
    margin: var(--space-xl) 0;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border);
}

.share-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.share-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: white;
    transition: var(--transition);
}

.share-btn.whatsapp {
    background: #25d366;
}

.share-btn.twitter {
    background: #1da1f2;
}

.share-btn.facebook {
    background: #4267b2;
}

.share-btn.copy-link {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.share-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* Pending Meaning Section */
.pending-meaning-section {
    background: var(--bg-secondary) !important;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    margin: 2rem 0;
    border: 2px dashed var(--border);
    color: var(--text-primary) !important;
}

.pending-meaning-section h2 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin: 1rem 0;
}

.pending-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

.pending-features {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.p-feature {
    background: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #6c757d;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.1);
        opacity: 0.8;
    }

    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.new-badge {
    display: inline-block;
    background: #ff4757;
    color: white;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 6px;
    vertical-align: middle;
    font-weight: bold;
}

/* Word Page Layout */
.word-page-grid {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

@media (min-width: 1024px) {
    .word-page-grid {
        flex-direction: row;
        align-items: flex-start;
    }

    .word-main {
        flex: 1;
        min-width: 0;
    }

    .word-sidebar {
        width: 320px;
        position: sticky;
        top: 100px;
    }
}

.sidebar-section {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    box-shadow: 0 4px 6px var(--shadow);
}

.sidebar-section h3 {
    font-size: 1.125rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--primary);
    display: inline-block;
    color: var(--text-primary);
}

.sidebar-word-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.sidebar-word-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-xs);
    border-radius: var(--radius-sm);
    font-weight: 500;
    color: var(--text-secondary);
}

.sidebar-word-item:hover {
    background: var(--bg-secondary);
    color: var(--primary);
}

.sidebar-word-item .arrow {
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: var(--transition);
}

.sidebar-word-item:hover .arrow {
    transform: translateX(3px);
    color: var(--primary);
}