/* --------------------------------------------------
   Style.css for Spiritual Lessons Portal
   Uniform Card Grids with Expandable Details
-------------------------------------------------- */

:root {
    --font-scale: 1;
    --font-base: 16px;
    --primary: #38bdf8;
    --bg-color: #020617;
    --text-color: #f1f5f9;
    --text-muted: #94a3b8;
    --card-bg: rgba(15, 23, 42, 0.7);
    --border-color: rgba(56, 189, 248, 0.2);
    --accent: #f59e0b;
    --link-color: #7dd3fc;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    --radius: 12px;
    --title-font: 'Gabriela', serif;
    --body-font: 'Lato', sans-serif;
}

html {
    font-size: calc(var(--font-base) * var(--font-scale));
    scroll-behavior: smooth;
    background-color: var(--bg-color);
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--body-font);
    line-height: 1.6;
    margin: 0;
    transition: background 0.4s ease, color 0.4s ease;
}

/* -------------------- Themes -------------------- */
[data-theme="auburn-night"] {
    --primary: #ef4444;
    --bg-color: #110000;
    --text-color: #fee2e2;
    --card-bg: rgba(40, 0, 0, 0.8);
    --border-color: #ef444444;
    --link-color: #f87171;
}

[data-theme="art-deco"] {
    --primary: #d4af37;
    --bg-color: #0a0a0a;
    --text-color: #fffaf0;
    --card-bg: rgba(30, 30, 30, 0.9);
    --border-color: #d4af3788;
    --link-color: #ffd700;
    --title-font: 'Playfair Display', serif;
}

[data-theme="midnight-sky-blue"] {
    --primary: #38bdf8;
    --bg-color: #020617;
    --text-color: #f1f5f9;
    --card-bg: rgba(15, 23, 42, 0.7);
    --border-color: #38bdf833;
    --link-color: #7dd3fc;
}

[data-theme="acid-high-energy"] {
    --primary: #ccff00;
    --bg-color: #050505;
    --text-color: #f0f0f0;
    --card-bg: rgba(10, 10, 10, 0.9);
    --border-color: #ccff0088;
    --link-color: #ccff00;
    --title-font: 'Orbitron', sans-serif;
}

[data-theme="vaporwave-sunset"] {
    --primary: #ff00ff;
    --bg-color: #120458;
    --text-color: #00ffff;
    --card-bg: rgba(45, 13, 131, 0.6);
    --border-color: #ff00ff88;
    --link-color: #00ffff;
}

[data-theme="boreal-night"] {
    --primary: #00ffcc;
    --bg-color: #000c14;
    --text-color: #e0ffff;
    --card-bg: rgba(0, 30, 40, 0.7);
    --border-color: #00ffcc88;
    --link-color: #00ffcc;
}

[data-theme="neon-void"] {
    --primary: #00ced1;
    --bg-color: #000000;
    --text-color: #00ced1;
    --card-bg: rgba(10, 10, 10, 0.9);
    --border-color: #00ced188;
    --link-color: #ffffff;
}

[data-theme="creme-and-gold"] {
    --primary: #b8860b;
    --bg-color: #fffcf0;
    --text-color: #3d342d;
    --card-bg: #ffffff;
    --border-color: #b8860b44;
    --link-color: #b8860b;
    --title-font: 'Cormorant Garamond', serif;
}

[data-theme="ink-and-paper"] {
    --primary: #1a1a1a;
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --card-bg: #f5f5f5;
    --border-color: #1a1a1a44;
    --link-color: #0000ff;
    --title-font: 'Merriweather', serif;
}

[data-theme="forest-ethereal"] {
    --primary: #2d5a27;
    --bg-color: #f1f8e9;
    --text-color: #1b3022;
    --card-bg: #ffffff;
    --border-color: #2d5a2744;
    --link-color: #2d5a27;
}

[data-theme="denim-wash"] {
    --primary: #34568b;
    --bg-color: #e3e9f3;
    --text-color: #2c3e50;
    --card-bg: #ffffff;
    --border-color: #34568b44;
    --link-color: #34568b;
}

[data-theme="peach-fuzz"] {
    --primary: #ffbe98;
    --bg-color: #fff5f0;
    --text-color: #5d4037;
    --card-bg: #ffffff;
    --border-color: #ffbe9844;
    --link-color: #d87d4a;
}

[data-theme="sahara-sand"] {
    --primary: #c29922;
    --bg-color: #f4ece1;
    --text-color: #3e2723;
    --card-bg: #ffffff;
    --border-color: #c2992244;
    --link-color: #c29922;
}

[data-theme="lavender-mist"] {
    --primary: #967bb6;
    --bg-color: #f8f4ff;
    --text-color: #4b0082;
    --card-bg: #ffffff;
    --border-color: #967bb644;
    --link-color: #6a0dad;
}

/* -------------------- Layout -------------------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

header {
    text-align: center;
    padding: 1rem 0;
}

.banner-img {
    width: 100%;
    max-width: 1000px;
    height: auto;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    cursor: pointer;
}

.description-area {
    font-size: 1.2rem;
    opacity: 0.9;
    max-width: 800px;
    margin: 1rem auto;
    text-align: center;
}

/* -------------------- Controls -------------------- */
.control-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.8rem;
    flex-wrap: wrap;
    padding: 1rem;
    margin-bottom: 2rem;
    background: var(--bg-color);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
}

.btn-ctrl {
    background-color: var(--primary);
    color: var(--bg-color);
    padding: 12px 24px;
    border-radius: var(--radius);
    border: none;
    font-weight: 800;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-ctrl:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px var(--primary);
}

.search-input {
    padding: 12px 40px 12px 20px;
    border-radius: var(--radius);
    border: 2px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-color);
    width: 100%;
    font-size: 1rem;
    box-sizing: border-box;
}

.search-wrapper {
    position: relative;
    display: flex;
    flex-grow: 1;
    align-items: center;
}

.clear-btn {
    position: absolute;
    right: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    width: 24px;
    height: 24px;
    transition: color 0.2s ease;
    z-index: 5;
    line-height: 1;
}

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

/* -------------------- Content Grid -------------------- */
#content-to-read {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.lesson-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    height: 350px;
    /* Fixed uniform height */
    overflow: hidden;
    position: relative;
    transition: all 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.lesson-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
}

.lesson-card.expanded {
    height: auto;
    min-height: 350px;
    grid-column: span 2;
    /* Optional: stretch card on desktop? */
    z-index: 100;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.8);
}

@media (max-width: 800px) {
    .lesson-card.expanded {
        grid-column: span 1;
    }
}

.lesson-category {
    font-size: 0.75rem;
    font-weight: 900;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.lesson-summary {
    font-family: var(--title-font);
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1rem;
    color: var(--primary);
}

.lesson-details {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-color);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    /* Initially show only a bit of details */
    display: -webkit-box;
    -webkit-line-clamp: 4;
    line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.lesson-card.expanded .lesson-details {
    display: block;
    -webkit-line-clamp: unset;
    line-clamp: unset;
    overflow: visible;
}

.expand-hint {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: linear-gradient(transparent, var(--bg-color));
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 1rem;
    color: var(--primary);
    font-weight: 800;
    font-size: 0.85rem;
    pointer-events: none;
}

.lesson-card.expanded .expand-hint {
    display: none;
}

/* -------------------- Splash -------------------- */
#splash {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease;
}

#splash img {
    max-width: 80%;
    max-height: 80%;
    border-radius: 20px;
    box-shadow: 0 0 80px rgba(255, 255, 255, 0.1);
}

/* -------------------- Misc -------------------- */
.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background: var(--bg-color);
    min-width: 250px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    z-index: 1000;
    box-shadow: var(--shadow);
}

.dropdown-content a {
    display: block;
    padding: 15px 20px;
    color: var(--text-color);
    font-weight: 600;
}

.dropdown-content a:hover {
    background: var(--primary);
    color: var(--bg-color);
}

.show {
    display: block;
}

a {
    color: var(--link-color);
    font-weight: 800;
    text-decoration: underline;
}