/* CSS Design System for Biblioteca Tewahedo */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;800&family=Lora:ital,wght@0,400;0,600;1,400&family=Outfit:wght@300;400;500;600&display=swap');

:root {
    /* Color Palette */
    --color-bg: #0e0d0a;
    --color-surface: #181611;
    --color-surface-hover: #221f18;
    --color-surface-active: #2a261f;
    --color-border: #2e2a22;
    --color-border-focus: #544d3c;
    
    --color-gold-light: #dfc385;
    --color-gold: #c5a868;
    --color-gold-dark: #977d46;
    --color-gold-deep: #685328;
    
    --color-text-primary: #eae6df;
    --color-text-secondary: #a39c91;
    --color-text-muted: #706a5e;
    
    --color-overlay: rgba(14, 13, 10, 0.85);
    --color-glass: rgba(24, 22, 17, 0.65);
    
    /* Typography */
    --font-heading: 'Cinzel', serif;
    --font-reading: 'Lora', serif;
    --font-ui: 'Outfit', sans-serif;
    
    /* Layout */
    --sidebar-width: 320px;
    --right-panel-width: 380px;
    --header-height: 70px;
    --transition-speed: 0.3s;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.7);
    --shadow-gold: 0 0 15px rgba(197, 168, 104, 0.15);
}

/* Reset and base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-ui);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Scrollbar styles */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gold-dark);
}

/* Common Text Gradient */
.text-gold-gradient {
    background: linear-gradient(135deg, var(--color-gold-light) 0%, var(--color-gold) 50%, var(--color-gold-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Header */
header {
    height: var(--header-height);
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

header .logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

header .logo-icon {
    font-size: 1.8rem;
    color: var(--color-gold);
    text-shadow: var(--shadow-gold);
}

header h1 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
}

header .nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.search-box {
    position: relative;
}

.search-box input {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 0.6rem 1rem 0.6rem 2.2rem;
    border-radius: 30px;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    width: 250px;
    transition: all var(--transition-speed);
}

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

.search-box .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
}

.btn-pill {
    background: transparent;
    border: 1px solid var(--color-gold-dark);
    color: var(--color-gold);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-pill:hover {
    background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold-dark));
    color: var(--color-bg);
    border-color: transparent;
    box-shadow: var(--shadow-gold);
}

/* App Container */
.app-container {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    border-right: 1px solid var(--color-border);
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--transition-speed);
}

.sidebar-tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
}

.sidebar-tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    padding: 1rem 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-align: center;
    border-bottom: 2px solid transparent;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-tab.active {
    color: var(--color-gold);
    border-bottom-color: var(--color-gold);
}

.sidebar-tab:hover:not(.active) {
    color: var(--color-text-primary);
    background-color: var(--color-surface-hover);
}

.book-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
}

.book-category-header {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    color: var(--color-gold);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin: 1.5rem 0 0.5rem 0.5rem;
    border-bottom: 1px solid rgba(197, 168, 104, 0.15);
    padding-bottom: 4px;
}

.book-category-header:first-of-type {
    margin-top: 0.5rem;
}

.book-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0.85rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed);
    margin-bottom: 4px;
    border: 1px solid transparent;
}

.book-item:hover {
    background-color: var(--color-surface-hover);
    border-color: rgba(197, 168, 104, 0.1);
}

.book-item.active {
    background-color: var(--color-surface-active);
    border-color: var(--color-gold-deep);
}

.book-item-title {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.book-item.active .book-item-title {
    color: var(--color-gold-light);
}

.book-item-badge {
    background-color: var(--color-bg);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 12px;
}

.book-item.active .book-item-badge {
    border-color: var(--color-gold-dark);
    color: var(--color-gold);
}

/* Reading Pane */
.reading-pane {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg);
    overflow: hidden;
}

.reading-header {
    padding: 1.5rem 2.5rem;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-surface);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.reading-title-area h2 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--color-gold);
}

.reading-title-area p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.reading-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
}

/* Chapter Selector Grid (Dropdown or inline wrapper) */
.chapter-nav-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
}

.select-custom {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 0.5rem 2rem 0.5rem 1rem;
    border-radius: 6px;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c5a868' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 14px;
    transition: all var(--transition-speed);
}

.select-custom:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: var(--shadow-gold);
}

.view-toggle-buttons {
    display: flex;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 2px;
}

.view-btn {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    padding: 0.4rem 1rem;
    border-radius: 4px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.view-btn.active {
    background-color: var(--color-surface-active);
    color: var(--color-gold);
}

/* Reading Content Scroll Area */
.reading-scroll-area {
    flex: 1;
    overflow-y: auto;
    padding: 3rem 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.reading-body-wrapper {
    max-width: 800px;
    width: 100%;
}

.reading-body-wrapper.parallel {
    max-width: 1200px;
}

/* Welcome Page (Inner) */
.welcome-screen {
    text-align: center;
    max-width: 700px;
    margin: 4rem auto;
    padding: 2rem;
    border: 1px solid var(--color-border);
    background-color: var(--color-surface);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.welcome-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-gold-light), var(--color-gold-dark));
}

.welcome-screen h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--color-gold);
}

.welcome-screen p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.welcome-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
    text-align: left;
}

.welcome-feature-item {
    padding: 1rem;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
}

.welcome-feature-item h4 {
    font-family: var(--font-heading);
    color: var(--color-gold-light);
    margin-bottom: 6px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.welcome-feature-item p {
    font-size: 0.85rem;
    margin-bottom: 0;
    line-height: 1.4;
}

/* Bible Chapters Grid Selection Screen */
.chapters-grid-screen {
    width: 100%;
    margin-top: 1rem;
}

.chapters-grid-screen h3 {
    font-family: var(--font-heading);
    color: var(--color-gold);
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 8px;
}

.chapters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 10px;
    margin-bottom: 2rem;
}

.chapter-btn {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 1rem 0;
    text-align: center;
    border-radius: 8px;
    font-family: var(--font-ui);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.chapter-btn:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-gold);
    color: var(--color-gold-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

/* Scripture Layout */
.scripture-text {
    line-height: 2;
    font-family: var(--font-reading);
    font-size: 1.25rem;
    color: var(--color-text-primary);
}

.verse-item {
    margin-bottom: 1.5rem;
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    transition: all var(--transition-speed);
    position: relative;
    border-left: 2px solid transparent;
}

.verse-item:hover {
    background-color: rgba(197, 168, 104, 0.04);
    border-left-color: var(--color-gold-dark);
}

.verse-num {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-gold);
    vertical-align: super;
    margin-right: 8px;
}

/* Parallel Columns Layout */
.parallel-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    width: 100%;
}

.parallel-col {
    display: flex;
    flex-direction: column;
}

.parallel-col-header {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-gold-light);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: 8px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.parallel-verse-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    margin-bottom: 1.2rem;
    padding: 0.5rem;
    border-radius: 6px;
    border-left: 2px solid transparent;
    transition: all var(--transition-speed);
}

.parallel-verse-row:hover {
    background-color: rgba(197, 168, 104, 0.04);
    border-left-color: var(--color-gold);
}

.parallel-verse-cell {
    font-family: var(--font-reading);
    font-size: 1.15rem;
    line-height: 1.8;
}

.parallel-verse-cell.spanish {
    color: var(--color-text-primary);
}

.parallel-verse-cell.english {
    color: var(--color-text-secondary);
    font-style: italic;
}

.parallel-verse-cell .verse-num {
    margin-right: 8px;
}

/* Info Alert for untranslated chapters */
.untranslated-notice {
    padding: 2.5rem;
    background-color: var(--color-surface);
    border: 1px dashed var(--color-gold-deep);
    border-radius: 12px;
    text-align: center;
    max-width: 650px;
    margin: 2rem auto;
}

.untranslated-notice-icon {
    font-size: 2.5rem;
    color: var(--color-gold);
    margin-bottom: 1rem;
}

.untranslated-notice h4 {
    font-family: var(--font-heading);
    color: var(--color-gold);
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    letter-spacing: 1px;
}

.untranslated-notice p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

/* Right Detail Panel (Surgical Info & Art Showcase) */
.right-panel {
    width: var(--right-panel-width);
    border-left: 1px solid var(--color-border);
    background-color: var(--color-surface);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 1.5rem;
}

.panel-section-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    color: var(--color-gold);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 6px;
}

.art-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed);
}

.art-card:hover {
    border-color: var(--color-gold-dark);
    box-shadow: var(--shadow-gold);
}

.art-frame {
    width: 100%;
    aspect-ratio: 4/5;
    background-color: #050403;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--color-border);
}

.art-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.art-frame:hover img {
    transform: scale(1.05);
}

.art-caption {
    padding: 1rem;
}

.art-caption h5 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--color-gold-light);
    margin-bottom: 4px;
}

.art-caption p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.info-card {
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 1.2rem;
    margin-bottom: 1.5rem;
}

.info-card h5 {
    font-family: var(--font-heading);
    color: var(--color-gold);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.info-card p {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.info-card ul {
    margin-top: 8px;
    padding-left: 20px;
}

.info-card li {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-bottom: 4px;
}

/* Modals & Overlay Panel */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-overlay);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-speed);
    backdrop-filter: blur(5px);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--color-surface);
    border: 1px solid var(--color-gold);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    position: relative;
    padding: 2rem;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-speed);
}

.modal-close:hover {
    color: var(--color-gold);
}

.modal-title {
    font-family: var(--font-heading);
    color: var(--color-gold);
    font-size: 1.4rem;
    margin-bottom: 1.2rem;
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 8px;
}

.modal-body {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.modal-body p {
    margin-bottom: 1rem;
}

.modal-body h4 {
    font-family: var(--font-heading);
    color: var(--color-text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

/* Mobile Toggle Hamburger */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--color-gold);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Responsive Rules */
@media (max-width: 1024px) {
    :root {
        --right-panel-width: 320px;
    }
    
    .search-box input {
        width: 180px;
    }
    .search-box input:focus {
        width: 200px;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .sidebar {
        position: fixed;
        left: 0;
        top: var(--header-height);
        bottom: 0;
        z-index: 5;
        transform: translateX(-100%);
        box-shadow: var(--shadow-lg);
        background-color: var(--color-surface);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .right-panel {
        display: none; /* Hide art panel on smaller screens, accessible via action */
    }
    
    .reading-header {
        padding: 1rem 1.5rem;
    }
    
    .reading-scroll-area {
        padding: 1.5rem 1.5rem;
    }
    
    .parallel-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .parallel-verse-row {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .welcome-features {
        grid-template-columns: 1fr;
    }
}