/**
 * Novo Testamento - Styles
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 * 
 * Design Styles: Editorial/Magazine + Clean & Minimal + Notion-Style Blocks
 * Color Palette: Slate & Gray
 */

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

/* ===== CSS VARIABLES ===== */
:root {
    /* Chosen palette colors - Slate & Gray */
    --primary-color: #708090;
    --secondary-color: #778899;
    --accent-color: #B0C4DE;
    --surface-color: #f8f9fa;
    --text-color: #2d3748;
    
    /* Automatic variations */
    --primary-hover: color-mix(in srgb, var(--primary-color) 85%, black);
    --primary-light: color-mix(in srgb, var(--primary-color) 20%, white);
    --primary-lighter: color-mix(in srgb, var(--primary-color) 10%, white);
    --bg-color: #ffffff;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --shadow-lg: rgba(0, 0, 0, 0.12);
    
    /* Layout */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --spacing-unit: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Merriweather', Georgia, 'Times New Roman', serif;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-xs: 12px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    
    /* Spacing */
    --header-height: 60px;
    --bottom-nav-height: 65px;
    --container-max: 960px;
    --container-padding: 16px;
    
    /* Reader font size */
    --reader-font-size: 18px;
}

/* Dark Mode */
[data-theme="dark"] {
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --text-light: #64748b;
    --border-color: #334155;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-lg: rgba(0, 0, 0, 0.4);
    --primary-light: color-mix(in srgb, var(--primary-color) 30%, var(--bg-color));
    --primary-lighter: color-mix(in srgb, var(--primary-color) 15%, var(--bg-color));
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-color: #0f172a;
        --surface-color: #1e293b;
        --text-color: #f1f5f9;
        --text-muted: #94a3b8;
        --text-light: #64748b;
        --border-color: #334155;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --shadow-lg: rgba(0, 0, 0, 0.4);
        --primary-light: color-mix(in srgb, var(--primary-color) 30%, var(--bg-color));
        --primary-lighter: color-mix(in srgb, var(--primary-color) 15%, var(--bg-color));
    }
}

/* ===== BASE STYLES ===== */
html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    padding-top: var(--header-height);
    padding-bottom: calc(var(--bottom-nav-height) + env(safe-area-inset-bottom, 0px));
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-color);
}

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

p {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

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

a:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* ===== HEADER ===== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--container-padding);
    box-shadow: 0 2px 8px var(--shadow-color);
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-logo i {
    font-size: 24px;
    color: var(--primary-color);
}

.header-logo .logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.header-logo h1 {
    font-size: var(--font-size-lg);
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--text-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Desktop Navigation */
.desktop-nav {
    display: none;
}

@media (min-width: 768px) {
    .desktop-nav {
        display: flex;
        gap: 8px;
    }
    
    .desktop-nav .nav-link {
        padding: 8px 16px;
        border-radius: var(--border-radius-sm);
        color: var(--text-muted);
        font-weight: 500;
        font-size: var(--font-size-sm);
        transition: var(--transition);
        text-decoration: none;
    }
    
    .desktop-nav .nav-link:hover {
        background: var(--primary-lighter);
        color: var(--primary-color);
        text-decoration: none;
    }
    
    .desktop-nav .nav-link.active {
        background: var(--primary-color);
        color: white;
    }
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
    min-height: 44px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-lg);
}

.btn:active {
    transform: translateY(0);
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    color: white;
    text-decoration: none;
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    text-decoration: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    padding: 8px 12px;
}

.btn-ghost:hover {
    background: var(--primary-lighter);
    color: var(--primary-color);
    box-shadow: none;
    text-decoration: none;
}

.btn-sm {
    padding: 8px 16px;
    font-size: var(--font-size-xs);
    min-height: 36px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: var(--font-size-base);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-icon i {
    font-size: 18px;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    min-height: calc(100vh - var(--header-height) - var(--bottom-nav-height));
}

.section {
    display: none;
    padding: var(--container-padding);
    max-width: var(--container-max);
    margin: 0 auto;
    animation: fadeIn 0.3s ease;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    padding: 48px 24px;
    background: linear-gradient(135deg, var(--primary-lighter) 0%, var(--surface-color) 100%);
    border-radius: var(--border-radius-xl);
    margin-bottom: 32px;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 500px;
}

.hero-badge {
    display: inline-block;
    padding: 6px 12px;
    background: var(--primary-color);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: var(--font-size-3xl);
    font-family: var(--font-serif);
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-base);
    color: var(--text-muted);
    margin-bottom: 24px;
    line-height: 1.7;
}

.hero-decoration {
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1;
}

.hero-circle {
    width: 200px;
    height: 200px;
    background: var(--accent-color);
    border-radius: 50%;
    opacity: 0.3;
}

.hero-cross {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 64px;
    color: var(--primary-color);
    opacity: 0.5;
}

@media (max-width: 600px) {
    .hero {
        padding: 32px 20px;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .hero-decoration {
        display: none;
    }
}

/* ===== SECTION BLOCKS ===== */
.section-block {
    margin-bottom: 32px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.section-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: var(--font-size-lg);
    font-family: var(--font-sans);
    font-weight: 600;
}

.section-header h3 i {
    color: var(--primary-color);
    font-size: 18px;
}

/* ===== PAGE HEADER ===== */
.page-header {
    text-align: center;
    padding: 24px 0 32px;
}

.page-header h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: 8px;
}

.page-header p {
    color: var(--text-muted);
    margin: 0;
}

/* ===== VERSE CARD ===== */
.verse-card {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    border-left: 4px solid var(--primary-color);
    position: relative;
}

.verse-card::before {
    content: '"';
    position: absolute;
    top: 10px;
    left: 20px;
    font-size: 64px;
    font-family: var(--font-serif);
    color: var(--primary-light);
    line-height: 1;
    opacity: 0.5;
}

.verse-card .verse-text {
    font-family: var(--font-serif);
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 16px;
    padding-left: 20px;
    font-style: italic;
}

.verse-card .verse-reference {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-left: 20px;
}

.verse-card .verse-reference span {
    font-weight: 600;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
}

.verse-card .verse-actions {
    display: flex;
    gap: 8px;
}

/* ===== CONTINUE READING CARD ===== */
.continue-card {
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.continue-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow-color);
}

.continue-card .continue-icon {
    width: 56px;
    height: 56px;
    background: var(--primary-light);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.continue-card .continue-icon i {
    font-size: 24px;
    color: var(--primary-color);
}

.continue-card .continue-info {
    flex: 1;
    min-width: 0;
}

.continue-card .continue-info h4 {
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    font-weight: 600;
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.continue-card .continue-info p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin: 0;
}

.continue-card .continue-arrow {
    color: var(--primary-color);
    font-size: 20px;
}

/* ===== BOOKS GRID ===== */
.books-categories {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 16px;
    margin-bottom: 24px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.books-categories::-webkit-scrollbar {
    display: none;
}

.category-btn {
    padding: 10px 20px;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    min-height: 44px;
}

.category-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
}

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

@media (min-width: 600px) {
    .books-grid-compact {
        grid-template-columns: repeat(4, 1fr);
    }
}

.book-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 20px 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    min-height: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

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

.book-card .book-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.book-card .book-icon i {
    font-size: 20px;
    color: var(--primary-color);
}

.book-card h4 {
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    font-weight: 600;
    margin: 0;
}

.book-card .book-chapters {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* ===== READER ===== */
.reader-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.reader-title {
    flex: 1;
    text-align: center;
}

.reader-title h2 {
    font-size: var(--font-size-lg);
    margin-bottom: 4px;
}

.reader-title span {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Chapters Selector */
.chapters-selector {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 24px;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
    gap: 8px;
}

.chapter-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
}

.chapter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

/* Reader Content */
.reader-content {
    padding-bottom: 24px;
}

.verses-container {
    font-family: var(--font-serif);
    font-size: var(--reader-font-size);
    line-height: 2;
}

.verse-item {
    display: flex;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    border-radius: var(--border-radius-sm);
}

.verse-item:hover {
    background: var(--primary-lighter);
    padding-left: 12px;
    padding-right: 12px;
    margin-left: -12px;
    margin-right: -12px;
}

.verse-item:last-child {
    border-bottom: none;
}

.verse-number {
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    font-weight: 700;
    color: var(--primary-color);
    min-width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-lighter);
    border-radius: 50%;
    flex-shrink: 0;
}

.verse-text-content {
    flex: 1;
    color: var(--text-color);
}

.verse-item.favorited .verse-number {
    background: var(--primary-color);
    color: white;
}

/* Reader Navigation */
.reader-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.reader-nav .btn {
    flex: 1;
}

/* ===== FAVORITES ===== */
.favorites-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.favorites-count {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.favorites-count i {
    color: var(--primary-color);
}

.favorites-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.favorite-card {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 16px;
    border-left: 3px solid var(--primary-color);
    transition: var(--transition);
}

.favorite-card:hover {
    transform: translateX(4px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.favorite-card .favorite-text {
    font-family: var(--font-serif);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--text-color);
    margin-bottom: 12px;
    font-style: italic;
}

.favorite-card .favorite-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.favorite-card .favorite-reference {
    font-weight: 600;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
}

.favorite-card .favorite-actions {
    display: flex;
    gap: 8px;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 48px 24px;
}

.empty-state i {
    font-size: 64px;
    color: var(--text-light);
    margin-bottom: 24px;
}

.empty-state h3 {
    font-size: var(--font-size-xl);
    margin-bottom: 12px;
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: 24px;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== ABOUT ===== */
.about-content {
    max-width: 600px;
    margin: 0 auto;
}

.about-card {
    text-align: center;
    padding: 32px 24px;
    background: var(--surface-color);
    border-radius: var(--border-radius-lg);
    margin-bottom: 32px;
}

.about-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.about-icon i {
    font-size: 36px;
    color: var(--primary-color);
}

.about-card h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 8px;
}

.about-tagline {
    font-style: italic;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.about-card p:last-child {
    margin-bottom: 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 32px;
}

@media (min-width: 600px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-item {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 20px 16px;
    text-align: center;
}

.feature-item i {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.feature-item h4 {
    font-size: var(--font-size-sm);
    font-family: var(--font-sans);
    font-weight: 600;
    margin-bottom: 4px;
}

.feature-item p {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    margin: 0;
}

.about-credits {
    text-align: center;
    padding: 16px;
    background: var(--surface-color);
    border-radius: var(--border-radius);
}

.about-credits p {
    margin: 0;
    font-size: var(--font-size-sm);
}

/* ===== FAQ ===== */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: transparent;
    border: none;
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-color);
    cursor: pointer;
    text-align: left;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--primary-lighter);
}

.faq-icon {
    color: var(--primary-color);
    transition: var(--transition);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 20px 16px;
    animation: slideDown 0.3s ease;
}

.faq-answer p {
    margin: 0;
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

/* ===== BOTTOM NAVIGATION ===== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--bottom-nav-height);
    background: var(--bg-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -2px 10px var(--shadow-color);
    z-index: 1000;
    padding-bottom: env(safe-area-inset-bottom, 0);
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px 16px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 11px;
    font-weight: 500;
    transition: var(--transition);
    min-width: 64px;
    min-height: 48px;
}

.nav-item i {
    font-size: 20px;
    transition: var(--transition);
}

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

.nav-item.active i {
    transform: scale(1.15);
}

@media (min-width: 768px) {
    .bottom-nav {
        display: none !important;
    }
    
    body {
        padding-bottom: 0;
    }
}

/* ===== TOAST ===== */
.toast-container {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + 16px + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%);
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

@media (min-width: 768px) {
    .toast-container {
        bottom: 24px;
    }
}

.toast {
    background: var(--text-color);
    color: var(--bg-color);
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-weight: 500;
    box-shadow: 0 4px 12px var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

.toast.success {
    background: #10b981;
    color: white;
}

.toast.error {
    background: #ef4444;
    color: white;
}

.toast i {
    font-size: 16px;
}

/* ===== MODALS ===== */
.search-modal,
.font-modal,
.verse-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--header-height) var(--container-padding) var(--container-padding);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
}

.search-modal-content,
.font-modal-content,
.verse-modal-content {
    background: var(--bg-color);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: calc(100vh - var(--header-height) - 32px);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    animation: slideDown 0.3s ease;
}

/* Search Modal */
.search-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
}

.search-header input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-family: var(--font-sans);
    background: var(--surface-color);
    color: var(--text-color);
    outline: none;
    transition: var(--transition);
}

.search-header input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-lighter);
}

.search-results {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
}

.search-placeholder {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.search-placeholder i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.search-result-item {
    padding: 12px;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 8px;
}

.search-result-item:hover {
    background: var(--primary-lighter);
}

.search-result-item .result-reference {
    font-weight: 600;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    margin-bottom: 4px;
}

.search-result-item .result-text {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    line-height: 1.5;
}

.search-result-item .result-text mark {
    background: var(--accent-color);
    color: var(--text-color);
    padding: 0 2px;
    border-radius: 2px;
}

/* Font Modal */
.font-modal-content {
    padding: 24px;
    text-align: center;
}

.font-modal-content h3 {
    margin-bottom: 24px;
}

.font-size-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.font-size-display {
    font-size: var(--font-size-xl);
    font-weight: 600;
    min-width: 60px;
}

/* Verse Modal */
.verse-modal {
    align-items: center;
    padding: var(--container-padding);
}

.verse-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.verse-modal-content {
    position: relative;
    max-height: 80vh;
}

.verse-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.verse-modal-header h3 {
    font-size: var(--font-size-lg);
    font-family: var(--font-sans);
}

.verse-modal-text {
    padding: 24px 20px;
    font-family: var(--font-serif);
    font-size: var(--font-size-lg);
    line-height: 1.8;
    color: var(--text-color);
    font-style: italic;
}

.verse-modal-actions {
    display: flex;
    gap: 12px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

.verse-modal-actions .btn {
    flex: 1;
}

/* ===== SKELETON LOADING ===== */
.skeleton {
    background: linear-gradient(90deg, var(--surface-color) 25%, var(--border-color) 50%, var(--surface-color) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.skeleton-verse {
    height: 120px;
}

.skeleton-text {
    height: 20px;
    margin-bottom: 8px;
}

.skeleton-text:last-child {
    width: 60%;
}

/* ===== FOOTER ===== */
.app-footer {
    text-align: center;
    padding: 32px var(--container-padding);
    background: var(--surface-color);
    margin-top: 48px;
}

.app-footer p {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-bottom: 8px;
}

.app-footer p:last-child {
    margin-bottom: 0;
}

.app-footer .b20-link {
    color: var(--primary-color);
    font-weight: 600;
    transition: var(--transition);
}

.app-footer .b20-link:hover {
    text-decoration: underline;
    transform: scale(1.05);
    display: inline-block;
}

/* ===== UTILITIES ===== */
.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;
}

[hidden] {
    display: none !important;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--surface-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* ===== FOCUS STYLES ===== */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

button:focus:not(:focus-visible),
a:focus:not(:focus-visible) {
    outline: none;
}

/* ===== PRINT STYLES ===== */
@media print {
    .app-header,
    .bottom-nav,
    .toast-container,
    .btn {
        display: none !important;
    }
    
    body {
        padding: 0;
    }
    
    .section {
        display: block !important;
    }
}

/* ===== PREMIUM UI ENHANCEMENTS ===== */
.app-header {
    background: rgba(255, 255, 255, 0.85) !important;
    backdrop-filter: blur(16px) !important;
    -webkit-backdrop-filter: blur(16px) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05) !important;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

[data-theme="dark"] .app-header {
    background: rgba(30, 41, 59, 0.85) !important;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.book-card:hover, .continue-card:hover {
    transform: translateY(-4px) scale(1.02) !important;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08) !important;
}

[data-theme="dark"] .book-card:hover, [data-theme="dark"] .continue-card:hover {
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3) !important;
}

.bottom-nav {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(16px) !important;
    border-top: 1px solid rgba(0,0,0,0.05);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05) !important;
    padding-bottom: env(safe-area-inset-bottom, 10px);
}

[data-theme="dark"] .bottom-nav {
    background: rgba(30, 41, 59, 0.9) !important;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* ===== SHARE MODAL ===== */
.share-modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.share-modal-box {
    background: var(--surface-color);
    width: 90%;
    max-width: 400px;
    border-radius: var(--border-radius-xl);
    padding: 24px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    animation: slideUp 0.3s ease;
}

.share-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.share-modal-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
    font-family: var(--font-sans);
}

.share-modal-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px;
    border: none;
    border-radius: var(--border-radius-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    color: white;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0,0,0,0.15);
}

.share-btn.whatsapp { background: #25D366; }
.share-btn.facebook { background: #1877F2; }
.share-btn.copy { background: var(--text-muted); }

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