/* ============================================
   QURANKUPEDIA - MOBILE-FIRST CSS
   ============================================ */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #1e7e34;
    --primary-light: #28a745;
    --primary-dark: #155724;
    --secondary-color: #6c757d;
    --accent-color: #ffc107;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    
    /* Background */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-dark: #343a40;
    --bg-light: #e9ecef;
    
    /* Text */
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-light: #ffffff;
    --text-muted: #adb5bd;
    
    /* Border */
    --border-color: #dee2e6;
    --border-light: #e9ecef;
    
    /* Shadow */
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    
    /* Font */
    --font-family-latin: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-family-arabic: 'Amiri', 'Times New Roman', serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 3rem;
    
    /* Layout */
    --header-height: 60px;
    --bottom-nav-height: 70px;
    --border-radius: 0.375rem;
    --border-radius-lg: 0.5rem;
}

body {
    font-family: var(--font-family-latin);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    padding-top: var(--header-height);
    padding-bottom: var(--bottom-nav-height);
    overflow-x: hidden;
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

.arabic-text {
    font-family: var(--font-family-arabic);
    font-size: 1.5rem;
    line-height: 2;
    text-align: right;
    direction: rtl;
    color: var(--text-primary);
}

.latin-text {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.translation-text {
    color: var(--text-primary);
    font-size: 1rem;
    line-height: 1.6;
}

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

.main-content {
    min-height: calc(100vh - var(--header-height) - var(--bottom-nav-height));
    padding: var(--spacing-md) 0;
}

/* === HEADER === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--text-light);
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.header-left {
    display: flex;
    align-items: center;
    flex: 1;
}

.header-center {
    flex: 2;
    text-align: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
    justify-content: flex-end;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
}

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

.back-btn, .search-btn, .bookmark-btn, .menu-btn {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.2rem;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s;
}

.back-btn:hover, .search-btn:hover, .bookmark-btn:hover, .menu-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.header-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: var(--text-light);
}

/* Search Container */
.search-container {
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.search-form {
    display: flex;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.search-input {
    flex: 1;
    border: none;
    background: none;
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    outline: none;
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.search-submit {
    background: none;
    border: none;
    color: var(--text-light);
    padding: var(--spacing-sm) var(--spacing-md);
    cursor: pointer;
}

/* === MOBILE MENU === */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: none;
}

.mobile-menu.active {
    display: block;
}

.menu-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.menu-content {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    animation: slideInRight 0.3s ease;
    display: flex;
    flex-direction: column;
}

.menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-md);
    background: var(--primary-color);
    color: var(--text-light);
}

.menu-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 700;
}

.menu-close {
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
}

.menu-list {
    list-style: none;
    flex: 1;
    padding: var(--spacing-md) 0;
}

.menu-list li {
    margin: 0;
}

.menu-list a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.2s;
}

.menu-list a:hover {
    background-color: var(--bg-light);
}

.menu-list a i {
    width: 20px;
    color: var(--primary-color);
}

.menu-footer {
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
    background: var(--bg-secondary);
}

.app-info {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* === BOTTOM NAVIGATION === */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    display: flex;
    height: var(--bottom-nav-height);
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.75rem;
    transition: color 0.2s;
}

.nav-item i {
    font-size: 1.2rem;
}

.nav-item.active {
    color: var(--primary-color);
}

.nav-item:hover {
    color: var(--primary-light);
}

/* === CARDS & COMPONENTS === */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
    background: var(--bg-secondary);
}

.card-body {
    padding: var(--spacing-md);
}

.card-title {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Surah Card */
.surah-card {
    padding: var(--spacing-md);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
    transition: transform 0.2s, box-shadow 0.2s;
}

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

.surah-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.surah-number {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.surah-info {
    flex: 1;
    margin: 0 var(--spacing-md);
}

.surah-name-arabic {
    font-family: var(--font-family-arabic);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.surah-name-latin {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.surah-meta {
    display: flex;
    gap: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.progress-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--success-color);
    font-size: 0.85rem;
}

/* Ayat Card */
.ayat-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.ayat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-light);
}

.ayat-number {
    background: var(--primary-color);
    color: var(--text-light);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
}

.ayat-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-icon {
    background: none;
    border: none;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s;
    color: var(--text-secondary);
}

.btn-icon:hover {
    background-color: var(--bg-light);
}

.btn-icon.active {
    color: var(--primary-color);
}

.ayat-content {
    padding: var(--spacing-lg) var(--spacing-md);
}

.ayat-arabic {
    margin-bottom: var(--spacing-md);
}

.ayat-latin {
    margin-bottom: var(--spacing-md);
}

.ayat-translation {
    margin-bottom: var(--spacing-md);
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    justify-content: center;
}

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

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

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

.btn-outline {
    background: none;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

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

/* === ANIMATIONS === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}

@keyframes slideInUp {
    from { 
        opacity: 0;
        transform: translateY(20px); 
    }
    to { 
        opacity: 1;
        transform: translateY(0); 
    }
}

/* === RESPONSIVE === */
@media (min-width: 768px) {
    :root {
        --header-height: 70px;
        --bottom-nav-height: 0px;
    }
    
    body {
        padding-bottom: 0;
    }
    
    .bottom-nav {
        display: none;
    }
    
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .main-content {
        padding: var(--spacing-lg) 0;
    }
    
    .header-content {
        height: var(--header-height);
        padding: 0 var(--spacing-lg);
    }
    
    .mobile-menu .menu-content {
        width: 320px;
    }
    
    .ayat-card {
        margin-bottom: var(--spacing-xl);
    }
    
    .surah-card {
        transition: transform 0.2s, box-shadow 0.2s;
    }
    
    .surah-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
    
    .main-content {
        padding: var(--spacing-xl) 0;
    }
}

/* === UTILITY CLASSES === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-light);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}