/* === Cyberpunk Theme - CSS Custom Properties === */
:root {
    --primary: #00f0ff;
    --secondary: #ff00aa;
    --bg: #0a0a1a;
    --card-bg: #1a1a2e;
    --text: #e0e0ff;
    --accent-glow: #00f0ff;
    --border: rgba(0, 240, 255, 0.2);
    --border-hover: rgba(0, 240, 255, 0.5);

    --font-heading: 'Orbitron', sans-serif;
    --font-body: 'Rajdhani', sans-serif;

    --radius: 8px;
    --radius-lg: 12px;
    --transition: 0.25s ease;
    --glow-sm: 0 0 8px rgba(0, 240, 255, 0.3);
    --glow-md: 0 0 16px rgba(0, 240, 255, 0.4);
    --glow-lg: 0 0 32px rgba(0, 240, 255, 0.3);

    --header-height: 52px;
    --z-video-sticky: 50;
}

/* === Reset === */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }

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

a:hover {
    color: var(--secondary);
}

/* === Layout === */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

.main-content {
    position: relative;
    z-index: 2;
    flex: 1;
    padding: 1rem 0;
}

/* === Header === */
.site-header {
    background: linear-gradient(180deg, rgba(26, 26, 46, 0.95) 0%, rgba(10, 10, 26, 0.9) 100%);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.site-header.header-hidden {
    transform: translateY(-100%);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.header-left,
.header-center,
.header-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-center {
    flex: 1;
    justify-content: center;
}

.site-brand {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    text-shadow: var(--glow-sm);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
}

.site-brand:hover {
    color: var(--primary);
}

/* === Cards === */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.card:hover {
    border-color: var(--border-hover);
}

.card-hover {
    transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.card-hover:hover {
    transform: scale(1.03);
    box-shadow: var(--glow-sm);
    border-color: var(--border-hover);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    background: transparent;
    color: var(--text);
}

.btn:hover {
    transform: scale(1.05);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #0080ff);
    border-color: var(--primary);
    color: var(--bg);
}

.btn-primary:hover {
    box-shadow: var(--glow-md);
    color: var(--bg);
}

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

.btn-outline:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: var(--glow-sm);
    color: var(--primary);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none;
    box-shadow: none;
}

/* === Button Spinner === */

.btn-spinner {
    display: inline-block;
    width: 0.85em;
    height: 0.85em;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
    vertical-align: middle;
}

@keyframes btn-spin {
    to { transform: rotate(360deg); }
}

/* === Schedule Banner === */
.schedule-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--card-bg), rgba(0, 240, 255, 0.05));
    border-color: var(--primary);
}

.schedule-text {
    flex: 1;
    text-align: center;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    color: var(--primary);
    text-shadow: var(--glow-sm);
    letter-spacing: 0.05em;
}

.banner-actions {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    flex-shrink: 0;
}

.banner-action-btn {
    font-size: 0.65rem;
    padding: 0.3rem 0.75rem;
    white-space: nowrap;
}

.banner-subscribed {
    border-color: var(--primary);
    color: var(--primary);
    cursor: default;
    opacity: 0.8;
}

.banner-subscribed:hover {
    transform: none;
}

/* === Video Section === */
.video-section {
    margin-bottom: 1rem;
}

.video-placeholder {
    aspect-ratio: 16 / 9;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0d0d24, #1a1a2e);
    text-align: center;
}

.video-placeholder .subtext {
    font-size: 0.85rem;
    opacity: 0.5;
    margin-top: 0.5rem;
}

/* === Tabs === */
.tabs-section {
    margin-bottom: 2rem;
}

.tab-bar {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.tab-btn {
    flex: 1;
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text);
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all var(--transition);
    opacity: 0.5;
}

.tab-btn:hover {
    opacity: 0.8;
}

.tab-btn.active {
    opacity: 1;
    color: var(--primary);
    border-bottom-color: var(--primary);
    text-shadow: var(--glow-sm);
}

/* Tab pane visibility handled by tabs.css sweep system */

/* === Quick Links === */
.quick-links {
    margin-top: 1.5rem;
}

.quick-links h3 {
    margin-bottom: 0.75rem;
    color: var(--primary);
    font-size: 0.9rem;
}

.socials-grid {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition);
}

.social-btn svg {
    width: 1.2rem;
    height: 1.2rem;
}

.social-btn:hover {
    color: var(--primary);
    border-color: var(--border-hover);
    transform: scale(1.1);
    box-shadow: var(--glow-sm);
}

/* === Footer === */
.site-footer {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 1.5rem 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
}

.site-footer p {
    opacity: 0.5;
}

.site-footer .socials-grid {
    opacity: 0.7;
}

.site-footer .socials-grid:hover {
    opacity: 1;
}

/* === Error Page === */
.error-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    text-align: center;
    gap: 1rem;
}

.error-code {
    font-size: 4rem;
    color: var(--secondary);
    text-shadow: 0 0 20px rgba(255, 0, 170, 0.5);
}

.error-message {
    font-size: 1.1rem;
    opacity: 0.7;
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* === Selection === */
::selection {
    background: rgba(0, 240, 255, 0.3);
    color: #fff;
}