:root {
    /* Base Colors - Ink Theme (Default) */
    --bg-color: #1a1b26;
    --text-color: #a9b1d6;
    --text-heading: #c0caf5;
    --accent-color: #7aa2f7;
    --accent-hover: #5d87e6;
    --border-color: rgba(122, 162, 247, 0.1);
    --sidebar-bg: rgba(26, 27, 38, 0.95);
    --surface-bg: #24283b;
    --glass-bg: rgba(26, 27, 38, 0.8);
    --highlight-bg: rgba(122, 162, 247, 0.15);
    
    /* Typography */
    --font-ui: 'Zen Kaku Gothic New', sans-serif;
    --font-reader: 'Shippori Mincho', serif;
    --reader-size: 18px;
    --reader-height: 1.8;
    
    /* Layout */
    --sidebar-width: 320px;
    --header-height: 64px;
    --max-width: 800px;
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    
    /* Mobile Optimizations */
    --mobile-sidebar-width: 85vw;
    --mobile-header-height: 56px;
}

/* Theme: Paper (Light) - Inspired by Japanese washi paper */
.theme-paper {
    --bg-color: #f9f5f0;
    --text-color: #3d3d3d;
    --text-heading: #1a1a1a;
    --accent-color: #c1554d;
    --accent-hover: #a63d36;
    --border-color: rgba(193, 85, 77, 0.15);
    --sidebar-bg: rgba(249, 245, 240, 0.98);
    --surface-bg: #fff8f0;
    --glass-bg: rgba(249, 245, 240, 0.85);
    --highlight-bg: rgba(193, 85, 77, 0.08);
}

/* Theme: Night (OLED) */
.theme-night {
    --bg-color: #000000;
    --text-color: #888888;
    --text-heading: #e0e0e0;
    --accent-color: #ffffff;
    --accent-hover: #cccccc;
    --border-color: #333333;
    --sidebar-bg: rgba(10, 10, 10, 0.95);
    --surface-bg: #111111;
    --glass-bg: rgba(0, 0, 0, 0.8);
    --highlight-bg: rgba(255, 255, 255, 0.1);
}

* { 
    box-sizing: border-box; 
    -webkit-tap-highlight-color: transparent;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    touch-action: manipulation;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-ui);
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow: hidden;
    overscroll-behavior: none;
}

#app {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* --- Glassmorphism Utilities --- */
.glass-panel {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: var(--glass-bg);
    border-bottom: 1px solid var(--border-color);
}

/* --- Hero Section --- */
.hero-section {
    position: absolute;
    inset: 0;
    z-index: 5;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-color);
    transition: transform 0.6s cubic-bezier(0.65, 0, 0.35, 1), opacity 0.6s;
}
.hero-section.hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
}

.hero-content {
    text-align: center;
    padding: 20px;
    max-width: 600px;
    animation: fadeIn 1s ease-out;
}

.hero-ornament {
    font-size: 2rem;
    color: var(--accent-color);
    opacity: 0.6;
    margin-bottom: 1rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.hero-title {
    font-family: var(--font-reader);
    font-size: clamp(3rem, 12vw, 6rem);
    margin-bottom: 0.5rem;
    color: var(--text-heading);
    letter-spacing: 0.15em;
    font-weight: 400;
    line-height: 1.2;
}
.hero-subtitle {
    font-size: clamp(0.9rem, 3vw, 1.2rem);
    text-transform: uppercase;
    letter-spacing: 0.4em;
    opacity: 0.7;
    margin-bottom: clamp(2rem, 5vw, 3rem);
    font-weight: 300;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 4rem;
}

.hero-btn {
    padding: 14px 36px;
    border-radius: 50px;
    font-size: clamp(0.9rem, 2.5vw, 1rem);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    letter-spacing: 0.08em;
    min-height: 48px;
    touch-action: manipulation;
    user-select: none;
}
.hero-btn.primary {
    background: var(--accent-color);
    color: var(--bg-color);
    border: 2px solid var(--accent-color);
}
.hero-btn.primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.hero-btn.secondary {
    background: transparent;
    color: var(--text-heading);
    border: 2px solid var(--border-color);
}
.hero-btn.secondary:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.daily-verse {
    margin-top: 2rem;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
}
.verse-text {
    font-family: var(--font-reader);
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 1rem;
    color: var(--text-heading);
}
.verse-ref {
    font-size: 0.9rem;
    color: var(--accent-color);
    font-weight: 700;
}

/* --- Toolbar --- */
.toolbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    z-index: 10;
    transition: transform 0.3s;
}

.toolbar-left, .toolbar-right { display: flex; align-items: center; gap: 16px; }

.current-location {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
    cursor: pointer;
    padding: 4px 12px;
    border-radius: 8px;
    transition: background 0.2s;
}
.current-location:hover { background: var(--surface-bg); }
#loc-book { font-weight: 700; color: var(--text-heading); font-size: 1rem; }
#loc-chapter { font-size: 0.8rem; opacity: 0.7; }

.icon-btn {
    width: 44px; 
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-color);
    cursor: pointer;
    border: none;
    background: transparent;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}
.icon-btn:hover { 
    background: var(--surface-bg); 
    color: var(--accent-color); 
    transform: scale(1.08); 
}
.icon-btn:active {
    transform: scale(0.95);
}

.language-switch select {
    background: var(--surface-bg);
    color: inherit;
    border: 1px solid var(--border-color);
    border-radius: 999px;
    padding: 8px 12px;
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.language-switch select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--highlight-bg);
}

/* --- Main Reader --- */
.main-view {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    opacity: 1;
    transition: opacity 0.5s;
}
.main-view.hidden { opacity: 0; pointer-events: none; }

.reader-scroll-area {
    flex: 1;
    overflow-y: auto;
    padding: calc(var(--header-height) + 40px) 20px 80px;
    scroll-behavior: smooth;
}

.reader-text {
    max-width: var(--max-width);
    margin: 0 auto;
    font-family: var(--font-reader);
    font-size: var(--reader-size);
    line-height: var(--reader-height);
    color: var(--text-heading);
}

.verse {
    position: relative;
    margin-bottom: 0.8em;
    display: block;
    padding: 8px 12px;
    border-radius: 6px;
    transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    cursor: pointer;
    -webkit-user-select: text;
    user-select: text;
    line-height: var(--reader-height);
}
.verse:hover, .verse:active { 
    background: var(--surface-bg); 
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
.verse-highlight {
    background: var(--highlight-bg) !important;
    box-shadow: 0 0 0 3px var(--accent-color), 0 4px 16px rgba(0, 0, 0, 0.2) !important;
    border-radius: 8px;
    animation: verseGlow 0.6s ease-out;
}
@keyframes verseGlow {
    0% { transform: scale(1.01); opacity: 0.8; }
    50% { transform: scale(1.005); }
    100% { transform: scale(1); opacity: 1; }
}
.verse-num {
    font-family: var(--font-ui);
    font-size: 0.6em;
    color: var(--accent-color);
    vertical-align: super;
    margin-right: 6px;
    opacity: 0.7;
    user-select: none;
    font-weight: 700;
}
.hide-verse-nums .verse-num { display: none; }

.chapter-title {
    text-align: center;
    margin: 2rem 0 3rem;
    font-size: 2.5rem;
    font-weight: 400;
    font-family: var(--font-reader);
    color: var(--accent-color);
}

.chapter-nav {
    max-width: var(--max-width);
    margin: 60px auto 0;
    display: flex;
    justify-content: space-between;
    gap: 12px;
}

/* --- Fixed Side Navigation Arrows (Desktop) --- */
.nav-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 72px;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 15;
    opacity: 0.7;
}

.nav-arrow:hover {
    opacity: 1;
    background: var(--surface-bg);
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.nav-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

.nav-arrow:disabled {
    opacity: 0.2;
    cursor: not-allowed;
    pointer-events: none;
}

/* Position arrows just outside the centered max-width reader content */
/* Reader content is centered with max-width: 800px */
/* Left edge of content = (100vw - 800px) / 2, arrow goes just before that */
.nav-arrow-left {
    left: calc((100vw - var(--max-width)) / 2 - 56px);
    border-radius: 12px;
}

/* Right edge of content = (100vw + 800px) / 2, arrow goes just after that */
.nav-arrow-right {
    left: calc((100vw + var(--max-width)) / 2 + 12px);
    border-radius: 12px;
}

/* Hide fixed arrows on smaller screens where they'd overlap content */
@media (max-width: 1100px) {
    .nav-arrow {
        display: none;
    }
}

/* --- Bottom Chapter Navigation --- */
.chapter-nav-bottom {
    max-width: var(--max-width);
    margin: 40px auto 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 0 16px;
}

.chapter-indicator {
    display: flex;
    align-items: baseline;
    gap: 4px;
    padding: 8px 16px;
    background: var(--surface-bg);
    border-radius: 20px;
    border: 1px solid var(--border-color);
}

.indicator-current {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent-color);
}

.indicator-total {
    font-size: 0.85rem;
    opacity: 0.6;
}

.nav-pill {
    flex: 1;
    max-width: 160px;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--surface-bg);
    color: var(--text-heading);
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    touch-action: manipulation;
    user-select: none;
}

.nav-pill .nav-icon {
    font-size: 1.1rem;
}

.nav-pill .nav-label {
    font-weight: 500;
}

.nav-pill:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0,0,0,0.12);
    background: var(--highlight-bg);
}
.nav-pill:active {
    transform: translateY(0);
}
.nav-pill:disabled { 
    opacity: 0.4; 
    cursor: not-allowed; 
    transform: none; 
    pointer-events: none;
}

/* --- Scroll to Top Button --- */
.scroll-top-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 15;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
}

.scroll-top-btn.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.scroll-top-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

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

.footer-spacer { height: 80px; }

/* --- Sidebars --- */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    z-index: 20;
    transform: translateX(0);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border-color);
    box-shadow: 0 0 40px rgba(0,0,0,0.3);
}

.sidebar.left { left: 0; transform: translateX(-100%); border-right: 1px solid var(--border-color); border-left: none; }
.sidebar.right { right: 0; transform: translateX(100%); border-left: 1px solid var(--border-color); border-right: none; }

.sidebar.active { transform: translateX(0); }

.sidebar-header {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-family: var(--font-reader);
    font-weight: 500;
    display: flex;
    flex-direction: column;
    line-height: 1.3;
}

.subtitle-en {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    opacity: 0.6;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

/* --- Sidebar Navigation Selects --- */
.selector-group { margin-bottom: 20px; }
.selector-group label { 
    display: block; 
    font-size: 0.75rem; 
    text-transform: uppercase; 
    letter-spacing: 1px; 
    margin-bottom: 8px; 
    opacity: 0.7; 
    font-weight: 600;
}

.select-wrapper { position: relative; }

.searchable-select {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.select-search {
    width: 100%;
    padding: 10px 12px;
    background: var(--surface-bg);
    border: 1px solid var(--border-color);
    color: inherit;
    border-radius: 8px;
    outline: none;
    font-size: 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.select-search:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--highlight-bg);
}

.select-search::placeholder {
    opacity: 0.5;
}

select {
    width: 100%;
    padding: 12px;
    padding-right: 36px;
    background: var(--surface-bg);
    border: 1px solid var(--border-color);
    color: inherit;
    border-radius: 8px;
    outline: none;
    appearance: none;
    cursor: pointer;
    font-size: 0.9rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--highlight-bg);
}

select option {
    background: var(--surface-bg);
    color: var(--text-color);
    padding: 8px;
}

.select-arrow {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    opacity: 0.7;
}

.searchable-select .select-arrow {
    top: auto;
    bottom: 18px;
    transform: none;
}

/* Chapter Selector */
.chapter-selector {
    display: flex;
    gap: 12px;
    align-items: center;
}

.chapter-select-wrapper {
    flex: 1;
}

.chapter-quick-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-bg);
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.chapter-nav-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.chapter-nav-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    border-color: var(--accent-color);
}

.chapter-nav-btn:active {
    transform: scale(0.95);
}

#chapter-display {
    font-weight: 700;
    font-size: 1.1rem;
    min-width: 24px;
    text-align: center;
    color: var(--accent-color);
}

/* Go Button */
.go-btn {
    width: 100%;
    padding: 14px 20px;
    background: var(--accent-color);
    color: var(--bg-color);
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-bottom: 24px;
}

.go-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

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

.go-btn-en {
    opacity: 0.8;
    font-weight: 400;
}

/* Quick Navigation Section */
.quick-nav-section {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.quick-nav-section label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
    opacity: 0.6;
    font-weight: 600;
}

.quick-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quick-link {
    padding: 8px 12px;
    background: var(--surface-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-color);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.quick-link:hover {
    background: var(--highlight-bg);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* --- Tabs (kept for backwards compatibility) --- */
.tab-group { display: flex; background: var(--surface-bg); border-radius: 8px; padding: 4px; gap: 4px; }
.tab { flex: 1; padding: 8px; border-radius: 6px; font-size: 0.9rem; text-align: center; transition: 0.2s; cursor: pointer; border: none; background: transparent; color: inherit; }
.tab.active { background: var(--bg-color); color: var(--accent-color); font-weight: 500; box-shadow: 0 2px 8px rgba(0,0,0,0.1); }

/* --- Settings --- */
.setting-group { margin-bottom: 36px; }
.setting-group h3 { 
    font-size: 0.9rem; 
    margin-bottom: 16px; 
    opacity: 0.8; 
    font-weight: 500;
    font-family: var(--font-reader);
    letter-spacing: 0.05em;
}

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

.control-row label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.control-row input[type="range"] {
    flex: 1;
    margin-left: 16px;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    border-radius: 3px;
    background: var(--surface-bg);
    outline: none;
}

.control-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: transform 0.2s;
}

.control-row input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.control-row input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    border: none;
    transition: transform 0.2s;
}

.control-row input[type="range"]::-moz-range-thumb:hover {
    transform: scale(1.2);
}

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

.toggle-row > label:first-child {
    font-size: 0.9rem;
    opacity: 0.9;
}

.theme-grid { display: flex; gap: 16px; }
.theme-btn {
    flex: 1;
    height: 80px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: 0.2s;
    background: var(--surface-bg);
}
.theme-btn .theme-preview {
    width: 24px; height: 24px; border-radius: 50%;
}
.theme-btn.ink .theme-preview { background: #1a1b26; border: 1px solid #fff; }
.theme-btn.paper .theme-preview { background: #fdfbf7; border: 1px solid #ccc; }
.theme-btn.night .theme-preview { background: #000; border: 1px solid #333; }

.theme-btn.active { border-color: var(--accent-color); background: var(--highlight-bg); }
.theme-btn span { font-size: 0.8rem; opacity: 0.8; }

/* Switch Toggle */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--surface-bg);
    transition: .4s;
    border: 1px solid var(--border-color);
}
.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-color);
    transition: .4s;
}
input:checked + .slider { background-color: var(--accent-color); border-color: var(--accent-color); }
input:checked + .slider:before { transform: translateX(20px); background-color: var(--bg-color); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

/* --- Search Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 50;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 100px;
    opacity: 0;
    transition: opacity 0.3s;
}
.modal-overlay.open { display: flex; opacity: 1; }

.modal-content {
    background: var(--sidebar-bg);
    width: 90%;
    max-width: 640px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transform: translateY(20px);
    transition: transform 0.3s;
}
.modal-overlay.open .modal-content { transform: translateY(0); }

.search-header {
    display: flex;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    gap: 12px;
}
.search-icon { opacity: 0.5; }
#search-input {
    flex: 1;
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-heading);
    outline: none;
}

.search-results-list {
    max-height: 60vh;
    overflow-y: auto;
    padding: 8px;
}
.search-result-item {
    padding: 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-bottom: 10px;
    background: var(--surface-bg);
    border: 1px solid var(--border-color);
}
.search-result-item:hover { 
    background: var(--highlight-bg);
    border-color: var(--accent-color);
    transform: translateX(4px);
}
.search-result-item.search-more {
    background: var(--highlight-bg);
    text-align: center;
}
.search-count {
    padding: 8px 16px;
    font-size: 0.85rem;
    opacity: 0.7;
    margin-bottom: 8px;
    font-weight: 500;
}
.result-ref { 
    font-weight: 700; 
    color: var(--accent-color); 
    font-size: 0.95rem; 
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.result-text { 
    font-size: 1rem; 
    line-height: 1.7; 
    color: var(--text-color); 
    font-family: var(--font-reader);
}
.result-text mark {
    background: var(--accent-color);
    color: var(--bg-color);
    padding: 1px 5px;
    border-radius: 3px;
    font-weight: 500;
}

/* --- Loader --- */
.loader-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-color);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s;
}
.loader-overlay.hidden { opacity: 0; pointer-events: none; }
.spinner {
    width: 50px; height: 50px; border: 3px solid var(--surface-bg); border-top-color: var(--accent-color); border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto 20px;
}
.loading-text { letter-spacing: 2px; font-size: 0.8rem; text-transform: uppercase; opacity: 0.7; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { 
    from { opacity: 0; transform: translateY(20px); } 
    to { opacity: 1; transform: translateY(0); } 
}
@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Toast --- */
.toast {
    position: fixed;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--surface-bg);
    color: var(--text-heading);
    padding: 12px 24px;
    border-radius: 50px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    opacity: 0;
    pointer-events: none;
    transition: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 60;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.toast.show { 
    opacity: 1; 
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
}

/* --- Zen Mode --- */
body.zen-mode .toolbar { transform: translateY(-100%); }
body.zen-mode .reader-scroll-area { padding-top: 40px; }
body.zen-mode .chapter-nav { opacity: 0; transition: opacity 0.3s; }
body.zen-mode .reader-scroll-area:hover .chapter-nav { opacity: 1; }

/* Mobile Responsive */
@media (max-width: 768px) {
    :root {
        --sidebar-width: var(--mobile-sidebar-width);
        --header-height: var(--mobile-header-height);
        --reader-size: 16px;
        --spacing-md: 16px;
        --spacing-lg: 24px;
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 15vw, 4rem);
        letter-spacing: 0.2em;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin: 0 auto 3rem;
    }
    
    .hero-btn {
        width: 100%;
        padding: 16px 24px;
    }
    
    .daily-verse {
        padding: 1.5rem 1rem;
    }
    
    .verse-text {
        font-size: 1.1rem;
    }
    
    .toolbar {
        padding: 0 16px;
    }
    
    .icon-btn {
        width: 44px;
        height: 44px;
    }
    
    .reader-scroll-area {
        padding: calc(var(--header-height) + 24px) 16px 60px;
    }
    
    .chapter-title {
        font-size: 1.8rem;
        margin: 1.5rem 0 2rem;
    }
    
    .chapter-nav-bottom {
        flex-wrap: wrap;
        gap: 10px;
        margin-top: 30px;
    }
    
    .chapter-indicator {
        order: -1;
        width: 100%;
        justify-content: center;
        margin-bottom: 8px;
    }
    
    .nav-pill {
        flex: 1;
        max-width: none;
        padding: 14px 16px;
    }
    
    .scroll-top-btn {
        bottom: 16px;
        right: 16px;
        width: 44px;
        height: 44px;
    }
    
    .sidebar {
        max-width: var(--mobile-sidebar-width);
    }
    
    .sidebar-content {
        padding: 16px;
    }
    
    .book-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 8px;
    }
    
    .book-item {
        padding: 10px 4px;
        font-size: 0.75rem;
    }
    
    .theme-grid {
        flex-direction: column;
    }
    
    .theme-btn {
        height: 60px;
        flex-direction: row;
        justify-content: flex-start;
        padding: 0 16px;
        gap: 16px;
    }
    
    .modal-content {
        width: 95vw;
        max-width: none;
        margin: 16px;
        border-radius: 16px;
    }
    
    .search-header {
        padding: 12px 16px;
    }
    
    #search-input {
        font-size: 16px;
    }
    
    .reader-text {
        padding: 0 4px;
    }
    
    body.zen-mode .reader-scroll-area {
        padding-top: 24px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .current-location {
        display: none;
    }
    
    .toolbar {
        padding: 0 8px;
    }
    
    .sidebar-header {
        padding: 0 16px;
    }
    
    .book-grid {
        grid-template-columns: repeat(auto-fill, minmax(55px, 1fr));
    }
}