/* Base Variables & Theming */
:root {
    --bg-color: #f4f6f9;
    --text-color: #2c3e50;
    --nav-bg: #ffffff;
    --nav-shadow: rgba(0, 0, 0, 0.05);
    --primary-color: #007acc;
    --primary-hover: #005f9e;
    --secondary-color: #e2e8f0;
    --secondary-text: #475569;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --code-bg: #1e1e1e;
    --code-text: #d4d4d4;
    --warning-bg: #fff3cd;
    --warning-text: #856404;
    --warning-border: #ffeeba;
    --gallery-bg: #000000;
}

[data-theme="dark"] {
    --bg-color: #0f172a;
    --text-color: #cbd5e1;
    --nav-bg: #1e293b;
    --nav-shadow: rgba(0, 0, 0, 0.2);
    --primary-color: #38bdf8;
    --primary-hover: #0ea5e9;
    --secondary-color: #334155;
    --secondary-text: #f8fafc;
    --card-bg: #1e293b;
    --border-color: #334155;
    --code-bg: #0b1120;
    --code-text: #e2e8f0;
    --warning-bg: #3f2c00;
    --warning-text: #fbbf24;
    --warning-border: #785a00;
    --gallery-bg: #0f172a;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

h1, h2, h3 {
    margin-bottom: 1rem;
    font-weight: 700;
}

p, ul, ol {
    margin-bottom: 1rem;
}

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

a:hover {
    text-decoration: underline;
}

/* Navigation */
.navbar {
    background-color: var(--nav-bg);
    box-shadow: 0 2px 10px var(--nav-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: background-color 0.3s;
}

.nav-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color);
}

.logo:hover {
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 1.5rem;
}

.nav-links {
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.2s;
}

.nav-links:hover {
    color: var(--primary-color);
    text-decoration: none;
}

.theme-btn {
    background: none;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    transition: all 0.2s;
}

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

/* Hamburger Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle .bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    transition: all 0.3s ease-in-out;
}

/* Header/Hero */
.hero {
    text-align: center;
    padding: 4rem 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    line-height: 1.2;
}

.hero h1 span {
    color: var(--primary-color);
}

.hero p {
    font-size: 1.1rem;
    margin: 1.5rem 0;
    color: var(--text-color);
    opacity: 0.9;
}

.action-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.2s;
}

.btn:hover { text-decoration: none; }

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

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

.btn.secondary {
    background-color: var(--secondary-color);
    color: var(--secondary-text);
}

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

/* Main Content */
.content-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
}

section {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px var(--nav-shadow);
    scroll-margin-top: 80px;
}

/* --- GALLERY CAROUSEL --- */
.gallery-section {
    text-align: center;
}

.carousel {
    position: relative;
    max-width: 100%;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 8px;
    background-color: var(--gallery-bg);
}

.carousel-inner {
    display: flex;
    transition: transform 0.4s ease-in-out;
}

.carousel-item {
    min-width: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-item img {
    width: 100%;
    max-height: 450px;
    object-fit: contain;
    display: block;
    border-radius: 8px;
}

.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 12px 16px;
    cursor: pointer;
    font-size: 20px;
    border-radius: 50%;
    transition: background-color 0.3s;
    z-index: 10;
}

.carousel-control:hover {
    background-color: rgba(0, 0, 0, 0.8);
}

.carousel-control.prev {
    left: 15px;
}

.carousel-control.next {
    right: 15px;
}

.carousel-indicators {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.dot {
    width: 12px;
    height: 12px;
    background-color: var(--border-color);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.3s;
}

.dot.active, .dot:hover {
    background-color: var(--primary-color);
}

/* --- END GALLERY --- */

.card.warning {
    background-color: var(--warning-bg);
    border-color: var(--warning-border);
    color: var(--warning-text);
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
}

th {
    background-color: rgba(0,0,0,0.03);
    font-weight: 600;
}

[data-theme="dark"] th {
    background-color: rgba(255,255,255,0.03);
}

/* Code Blocks */
code {
    font-family: 'Fira Code', monospace;
    background-color: var(--code-bg);
    color: var(--code-text);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
}

pre {
    background-color: var(--code-bg);
    padding: 1rem;
    border-radius: 6px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}

pre code {
    background-color: transparent;
    padding: 0;
    color: var(--code-text);
}

.ascii-box {
    font-family: 'Fira Code', monospace;
    line-height: 1.2;
    white-space: pre;
}

/* Lists */
ul, ol {
    margin-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
    color: var(--text-color);
    opacity: 0.8;
}

/* Media Queries */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 60px;
        left: 0;
        background-color: var(--nav-bg);
        border-bottom: 1px solid var(--border-color);
        padding: 1rem 0;
        box-shadow: 0 4px 6px var(--nav-shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        text-align: center;
        width: 100%;
    }

    .nav-links {
        display: block;
        padding: 0.5rem 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .content-container {
        padding: 0 1rem 2rem;
    }

    section {
        padding: 1.5rem;
    }
    
    .carousel-item img {
        max-height: 300px;
    }
}

/* --- BINGO CARDS PAGE --- */
.bgc-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.bgc-toolbar span {
    font-size: 0.85rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-right: 0.25rem;
}

.bgc-btn {
    padding: 0.5rem 0.9rem;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--secondary-color);
    color: var(--secondary-text);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.bgc-btn.on {
    background-color: #1a7f64;
    border-color: #1a7f64;
    color: #fff;
}

.bgc-btn.act {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

.bgc-btn.act:hover {
    background-color: var(--primary-hover);
}

.bgc-sheet {
    max-width: 190mm;
    margin: 0 auto;
    background-color: #fff;
    padding: 6mm;
    border-radius: 8px;
}

.bgc-ticket {
    page-break-inside: avoid;
    break-inside: avoid;
}

.bgc-lbl {
    font-size: 8pt;
    letter-spacing: 1px;
    margin-bottom: 1mm;
    color: #000;
}

.bgc-sheet table {
    border-collapse: collapse;
    width: 100%;
    table-layout: fixed;
    margin-top: 0;
}

.bgc-sheet td {
    border: 1.2pt solid #000;
    text-align: center;
    font-weight: 700;
    padding: 0;
    color: #000;
}

.bgc-d4 td { height: 16mm; font-size: 20pt; }
.bgc-d6 td { height: 11mm; font-size: 15pt; }
.bgc-d8 td { height: 8mm;  font-size: 11pt; }
.bgc-d4 .bgc-ticket { margin-bottom: 6mm; }
.bgc-d6 .bgc-ticket { margin-bottom: 5mm; }
.bgc-d8 .bgc-ticket { margin-bottom: 4mm; }

@media print {
    .noprint { display: none !important; }
    body { padding: 0; background: #fff; }
    .content-container { padding: 0; max-width: none; }
    section { border: none; box-shadow: none; padding: 0; margin: 0; }
    .bgc-sheet { max-width: none; border-radius: 0; }
    @page { size: A4 portrait; margin: 10mm; }
}