/* Core Styles - SagaScope Modern Redesign */

/* 1. Design Tokens & Variables */
:root {
    /* Color Palette - Modern Neutral foundation */
    --bg-color: #0f0f12;
    /* Main background - Deep almost-black */
    --bg-card: rgba(255, 255, 255, 0.05);
    /* Very subtle card bg */
    --bg-card-hover: rgba(255, 255, 255, 0.08);

    /* Typography Colors */
    --text-primary: #f2f2f2;
    /* High contrast white */
    --text-secondary: #a0a0a0;
    /* Muted grey for metadata */
    --text-tertiary: #666666;
    /* Subtle details */

    /* Brand/Accent Colors (Default - overridden by Sagas) */
    --accent-color: #ffffff;
    --accent-glow: rgba(255, 255, 255, 0.2);

    /* Typography System */
    --font-ui: 'Inter', system-ui, -apple-system, sans-serif;
    --font-read: 'Merriweather', Georgia, serif;
    /* Serifs for reading */

    /* Spacing & Layout */
    --spacing-unit: 8px;
    --container-width: 1000px;
    --header-height: 80px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-pill: 9999px;

    /* Effects */
    --glass-blur: 16px;
    --border-color: rgba(255, 255, 255, 0.08);
    --shadow-soft: 0 10px 40px -10px rgba(0, 0, 0, 0.5);

    /* Animation */
    --ease-out: cubic-bezier(0.215, 0.61, 0.355, 1);
}

/* 2. Reset & Base */
html {
    scroll-behavior: smooth;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    background-image: url('../assets/home-bg.png');
    /* Fallback */
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-ui);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background-image 0.8s ease-in-out;
}

/* 3. Layout Containers */
#app-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 4. Glassmorphism / Cards - Refined & Minimal */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

/* 5. Header Component */
header {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 24px;
    padding: 0 32px;
    /* Ensure dropdowns appear on top */
    position: relative;
    z-index: 50;
}

.brand {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.brand #saga-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* Controls */
.header-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.icon-btn {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-primary);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

/* Custom Language Selector */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 140px;
}

.custom-select {
    position: relative;
    display: flex;
    flex-direction: column;
}

.custom-select__trigger {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
}

.custom-select__trigger:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.custom-options {
    position: absolute;
    display: block;
    top: 120%;
    left: 0;
    right: 0;
    background: #1a1a1e;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    max-height: 300px;
    overflow-y: auto;
    padding: 5px;
}

.custom-select.open .custom-options {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    transform: translateY(0);
}

.custom-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
}

.custom-option:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

.custom-option.selected {
    color: #4caf50;
    /* Accent color green */
    background: rgba(76, 175, 80, 0.1);
}

.flag-icon {
    font-size: 1.1rem;
    line-height: 1;
}

.arrow {
    position: relative;
    height: 8px;
    width: 8px;
    margin-left: 8px;
}

.arrow::before,
.arrow::after {
    content: "";
    position: absolute;
    bottom: 0px;
    width: 1px;
    height: 100%;
    background-color: var(--text-secondary);
    transition: all 0.2s;
}

.arrow::before {
    left: -2px;
    transform: rotate(45deg);
}

.arrow::after {
    left: 2px;
    transform: rotate(-45deg);
}

.custom-select.open .arrow::before {
    transform: rotate(-45deg);
}

.custom-select.open .arrow::after {
    transform: rotate(45deg);
}

/* Custom Language Selector */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 180px;
}

.custom-select {
    position: relative;
    display: flex;
    flex-direction: column;
}

.custom-select__trigger {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: all 0.2s ease;
}

.custom-select__trigger:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.custom-options {
    position: absolute;
    display: block;
    top: 100%;
    left: 0;
    right: 0;
    background: #1a1a1e;
    /* Solid dark bg for readability */
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-top: 0;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: all 0.3s var(--ease-out);
    z-index: 100;
    max-height: 300px;
    overflow-y: auto;
    margin-top: 8px;
}

.custom-select.open .custom-options {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    transform: translateY(0);
}

.custom-option {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.custom-option:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.custom-option.selected {
    color: var(--accent-color);
    background: rgba(255, 255, 255, 0.02);
}

.flag-icon {
    font-size: 1.2rem;
    line-height: 1;
}

.arrow {
    position: relative;
    height: 8px;
    width: 8px;
}

.arrow::before,
.arrow::after {
    content: "";
    position: absolute;
    bottom: 0px;
    width: 0.15rem;
    height: 100%;
    transition: all 0.2s;
}

.arrow::before {
    left: -2px;
    transform: rotate(45deg);
    background-color: var(--text-secondary);
}

.arrow::after {
    left: 2px;
    transform: rotate(-45deg);
    background-color: var(--text-secondary);
}

.open .arrow::before {
    left: -2px;
    transform: rotate(-45deg);
}

.open .arrow::after {
    left: 2px;
    transform: rotate(45deg);
}

/* RTL Support for Custom Select */
.rtl .custom-select__trigger {
    flex-direction: row-reverse;
}

.rtl .custom-option {
    flex-direction: row-reverse;
}

/* 6. Saga Selector Grid */
#saga-selector-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    padding: 40px 0;
    animation: fadeIn 0.8s var(--ease-out) forwards;
}

/* Saga Card Contrast Fix */
.saga-card {
    position: relative;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    /* Darker, opaque background for legibility over light images */
    background: rgba(15, 15, 20, 0.85);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    overflow: hidden;
    transition: all 0.4s var(--ease-out);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.saga-card span {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    z-index: 2;
    transition: transform 0.4s var(--ease-out);
    /* Ensure text pops */
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

/* Hover Effects */
.saga-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-color);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px -8px rgba(0, 0, 0, 0.6);
}

.saga-card:hover span {
    transform: scale(1.05);
    color: var(--accent-color);
}

/* 7. Main Reading UI */
#main-ui {
    display: none;
    /* Toggled by JS */
    flex-direction: column;
    margin-top: 20px;
    min-height: 500px;
    animation: slideUp 0.6s var(--ease-out);
}

/* Control Bar within Main UI */
.controls {
    padding: 30px;
    display: flex;
    gap: 20px;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--border-color);
}

select {
    padding: 12px 20px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.4);
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 1rem;
    min-width: 280px;
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease;
}

select:hover,
select:focus {
    border-color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.6);
}

button.primary-action {
    background: var(--text-primary);
    color: var(--bg-color);
    font-weight: 600;
    border: none;
    padding: 12px 36px;
    border-radius: var(--radius-pill);
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.2s ease;
}

button.primary-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}

/* Reading Content Area */
#reading-area {
    flex: 1;
    overflow-y: auto;
    padding: 40px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

#reading-content {
    max-width: 720px;
    /* Optimal reading width */
    margin: 0 auto;
    font-family: var(--font-read);
    font-size: 1.25rem;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.95);
}

#reading-content p {
    margin-bottom: 1.5em;
    text-align: left;
    /* Easier to read than justify for web */
}

/* 8. Results Modal */
#results-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    /* Darker dimmer */
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    animation: fadeIn 0.4s forwards;
}

#results-content {
    background: #151515;
    border: 1px solid var(--border-color);
    padding: 60px 40px;
    border-radius: 24px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 1);
    transform: scale(0.95);
    animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.wpm-big {
    font-size: 6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin: 20px 0;
    line-height: 1;
    letter-spacing: -0.04em;
}

.stats-row {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.stats-row span {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.4rem;
    margin-top: 4px;
}

/* 9. Utilities */
.hidden {
    display: none !important;
}

/* 10. Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes popIn {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 11. Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        height: auto;
        padding: 20px;
        gap: 16px;
    }

    #app-container {
        padding: 0 16px;
    }

    .controls {
        flex-direction: column;
        padding: 20px;
    }

    select,
    button.primary-action {
        width: 100%;
        min-width: unset;
    }

    #reading-content {
        font-size: 1.15rem;
    }

    .wpm-big {
        font-size: 4rem;
    }
}

/* Charts Responsiveness */
.charts-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.chart-box {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 12px;
    padding: 15px;
    border: 1px solid var(--glass-border);
    position: relative;
    /* Removed fixed height for dynamic sizing */
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    overflow: hidden;
    /* Check if this needs to be visible for scrolling */
}

/* 12. MULTI-THEME MODES */

/* Global Transitions for Premium Feel */
body,
.glass-panel,
.saga-card,
button,
.custom-select,
#header-title,
#saga-title {
    transition: background-color 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
        color 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
        border-color 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
        box-shadow 0.4s cubic-bezier(0.25, 0.8, 0.25, 1),
        transform 0.2s ease;
}

/* Shared Resets for Clean Modes (Light, Dark, Sepia) */
body.theme-light,
body.theme-dark,
body.theme-sepia {
    background-image: none !important;
    font-family: 'Inter', system-ui, -apple-system, sans-serif !important;
}

/* Specific UI resets to kill Saga styles in clean modes */
body.theme-light .glass-panel,
body.theme-dark .glass-panel,
body.theme-sepia .glass-panel,
body.theme-light .saga-card,
body.theme-dark .saga-card,
body.theme-sepia .saga-card,
body.theme-light button,
body.theme-dark button,
body.theme-sepia button,
body.theme-light .custom-select,
body.theme-dark .custom-select,
body.theme-sepia .custom-select {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    box-shadow: none !important;
    border-radius: 12px !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    font-style: normal !important;
    text-shadow: none !important;
}

/* Reset Typography Colors/Effects */
body.theme-light #header-title,
body.theme-light #saga-title,
body.theme-dark #header-title,
body.theme-dark #saga-title,
body.theme-sepia #header-title,
body.theme-sepia #saga-title {
    -webkit-text-fill-color: initial !important;
    filter: none !important;
    text-shadow: none !important;
    font-weight: 700 !important;
}


/* --- THEME DEFINITIONS --- */

/* ☀️ LIGHT MODE (Minimalist / Apple-like) */
body.theme-light {
    background-color: #f5f5f7 !important;
    /* Soft gray-white */
    color: #1d1d1f !important;
}

body.theme-light .glass-panel,
body.theme-light .saga-card,
body.theme-light .custom-select,
body.theme-light .custom-options {
    background: #ffffff !important;
    border: 1px solid #d2d2d7 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04) !important;
    color: #1d1d1f !important;
}

body.theme-light .saga-card:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08) !important;
    transform: translateY(-2px);
    border-color: #0071e3 !important;
    /* Apple Blue highlight */
}

body.theme-light #header-title,
body.theme-light #saga-title {
    color: #1d1d1f !important;
}

body.theme-light button,
body.theme-light .custom-select__trigger {
    background: #e8e8ed !important;
    color: #1d1d1f !important;
    border: none !important;
}

body.theme-light button:hover {
    background: #d2d2d7 !important;
}

body.theme-light .highlight {
    color: #0071e3 !important;
}

/* 🌙 DARK MODE (AMOLED / High Contrast) */
body.theme-dark {
    background-color: #000000 !important;
    /* True Black */
    color: #f5f5f7 !important;
}

body.theme-dark .glass-panel,
body.theme-dark .saga-card,
body.theme-dark .custom-select,
body.theme-dark .custom-options {
    background: #1c1c1e !important;
    /* Dark Gray surface */
    border: 1px solid #333333 !important;
    box-shadow: none !important;
    color: #f5f5f7 !important;
}

body.theme-dark .saga-card:hover {
    background: #2c2c2e !important;
    border-color: #666666 !important;
}

body.theme-dark #header-title,
body.theme-dark #saga-title {
    color: #ffffff !important;
}

body.theme-dark button,
body.theme-dark .custom-select__trigger {
    background: #2c2c2e !important;
    color: #f5f5f7 !important;
    border: 1px solid #48484a !important;
}

body.theme-dark button:hover {
    background: #3a3a3c !important;
    border-color: #ffffff !important;
}

body.theme-dark .highlight {
    color: #0a84ff !important;
    /* iOS Dark Mode Blue */
}

/* 📖 SEPIA MODE (Premium Reading / Warm) */
body.theme-sepia {
    background-color: #f2eadd !important;
    /* Creamy Paper */
    color: #433422 !important;
    /* Dark Coffee Text */
}

body.theme-sepia .glass-panel,
body.theme-sepia .saga-card,
body.theme-sepia .custom-select,
body.theme-sepia .custom-options {
    background: #fdfbf7 !important;
    /* Lighter warm paper */
    border: 1px solid #dfd3c3 !important;
    box-shadow: 0 4px 10px rgba(67, 52, 34, 0.05) !important;
    color: #433422 !important;
}

body.theme-sepia .saga-card:hover {
    border-color: #a67c52 !important;
    /* Leather brown */
    background: #ffffff !important;
}

body.theme-sepia #header-title,
body.theme-sepia #saga-title {
    color: #2c2216 !important;
    /* Deep brown */
    font-family: 'Merriweather', 'Georgia', serif !important;
    /* Serif for reading vibe */
}

body.theme-sepia button,
body.theme-sepia .custom-select__trigger {
    background: #e8dec8 !important;
    color: #433422 !important;
    border: none !important;
}

body.theme-sepia button:hover {
    background: #dbcca7 !important;
}

body.theme-sepia .highlight {
    color: #a67c52 !important;
}

/* Specific fix for Custom Options dropdown visibility in all themes */
body.theme-light .custom-option,
body.theme-dark .custom-option,
body.theme-sepia .custom-option {
    background: transparent !important;
}

body.theme-light .custom-option:hover,
body.theme-light .custom-option.selected {
    background: #f2f2f7 !important;
}

body.theme-dark .custom-option:hover,
body.theme-dark .custom-option.selected {
    background: #3a3a3c !important;
}

body.theme-sepia .custom-option:hover,
body.theme-sepia .custom-option.selected {
    background: #e8dec8 !important;
}

body.theme-light #reading-content {
    color: #111 !important;
}

body.theme-light .custom-select__trigger,
body.theme-light .custom-options,
body.theme-light select {
    background: #fff !important;
    color: #333 !important;
    border-color: #ddd !important;
}

body.theme-light .icon-btn {
    color: #333 !important;
}

body.theme-light .saga-card {
    background: #fff !important;
    border: 1px solid #eee !important;
    color: #333 !important;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05) !important;
}

body.theme-light .saga-card span {
    color: #333 !important;
    text-shadow: none !important;
}

/* --- DARK THEME (Noche 🌙) --- */
body.theme-dark {
    background-color: #000000 !important;
    color: #e0e0e0 !important;
}

body.theme-dark .glass-panel {
    background: #111 !important;
    border-color: #333 !important;
}

body.theme-dark .brand h1,
body.theme-dark .brand #saga-title {
    color: #fff !important;
    text-shadow: none !important;
}

body.theme-dark #reading-content {
    color: #ccc !important;
    font-weight: 300;
}

body.theme-dark .custom-select__trigger,
body.theme-dark .custom-options,
body.theme-dark select {
    background: #111 !important;
    color: #ccc !important;
    border-color: #333 !important;
}

body.theme-dark .icon-btn {
    color: #ccc !important;
}

body.theme-dark .saga-card {
    background: #111 !important;
    border: 1px solid #333 !important;
    color: #ccc !important;
}

body.theme-dark .saga-card span {
    color: #fff !important;
    text-shadow: none !important;
}

/* --- SEPIA THEME (Lectura 📖) --- */
body.theme-sepia {
    background-color: #f4ecd8 !important;
    /* Pale sepia */
    color: #5b4636 !important;
    /* Dark brown text */
}

body.theme-sepia .glass-panel {
    background: #f9f4e6 !important;
    border-color: #d7c9b1 !important;
}

body.theme-sepia .brand h1,
body.theme-sepia .brand #saga-title,
body.theme-sepia .wpm-big,
body.theme-sepia .stats-row span {
    color: #463325 !important;
    text-shadow: none !important;
}

body.theme-sepia #reading-content {
    color: #2e221b !important;
    font-family: 'Merriweather', serif !important;
}

body.theme-sepia .custom-select__trigger,
body.theme-sepia .custom-options,
body.theme-sepia select {
    background: #f4ecd8 !important;
    color: #5b4636 !important;
    border-color: #dbbba4 !important;
}

body.theme-sepia .icon-btn {
    color: #5b4636 !important;
}

body.theme-sepia .saga-card {
    background: #fdfaf3 !important;
    border: 1px solid #e1d4c0 !important;
    color: #5b4636 !important;
}

body.theme-sepia .saga-card span {
    color: #463325 !important;
    text-shadow: none !important;
}

body.theme-sepia button.primary-action {
    background: #5b4636 !important;
    color: #f4ecd8 !important;
}

body.theme-sepia .arrow::before,
body.theme-sepia .arrow::after {
    background-color: #8b6b52 !important;
}