:root {
    --primary: #10b981;
    --primary-glow: rgba(16, 185, 129, 0.4);
    --secondary: #06b6d4;
    --bg-main: #f8fafc;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-overlay: rgba(255, 255, 255, 0.6);
    --border: rgba(226, 232, 240, 0.8);
    --text-main: #0f172a;
    --text-dim: #64748b;
    --accent: #6366f1;
    --shadow: rgba(0, 0, 0, 0.04);
    --glass-shadow: rgba(31, 38, 135, 0.07);
    --input-bg: #f1f5f9;
    --history-bg: rgba(248, 250, 260, 0.5);
    --glass-blur: blur(12px);
    --radius-lg: 24px;
    --radius-md: 16px;
    --dark: #0f172a;
}

[data-theme='dark'] {
    --bg-main: #020617;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-overlay: rgba(15, 23, 42, 0.6);
    --border: rgba(51, 65, 85, 0.5);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --accent: #818cf8;
    --shadow: rgba(0, 0, 0, 0.4);
    --glass-shadow: rgba(0, 0, 0, 0.2);
    --input-bg: rgba(51, 65, 85, 0.3);
    --history-bg: rgba(15, 23, 42, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    background-image: 
        radial-gradient(at 0% 0%, hsla(161, 72%, 48%, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(188, 78%, 41%, 0.05) 0px, transparent 50%);
    background-attachment: fixed;
    overflow-x: hidden;
    width: 100%;
}

.app-container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 1.5rem 2rem 4rem 2rem;
    overflow-x: hidden;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1rem 1.5rem;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px var(--glass-shadow);
    flex-wrap: wrap;
    gap: 1rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-right: 1.25rem;
    border-right: 1px solid var(--border);
}

/* Ensure Logo links are clean */
.logo-group a, .footer-logos a {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.logo-group a:hover, .footer-logos a:hover {
    transform: translateY(-2px);
}

.app-logo {
    height: 32px;
    width: auto;
    object-fit: contain;
}

.school-logo {
    /* No border-right here, moved to logo-group container */
    padding-right: 0;
    margin-right: 0;
}

.recycling-logo {
    height: 36px;
    filter: drop-shadow(0 0 8px var(--primary-glow));
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.1;
    background: linear-gradient(135deg, var(--text-main), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-subtitle {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 2px;
}

main {
    display: grid;
    grid-template-columns: 1fr minmax(360px, 420px);
    gap: 2.5rem;
    align-items: start;
}

.dashboard-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.main-content {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.video-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
    border-radius: 15px;
    background: #000;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.visualizer-card {
    position: relative;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: 32px;
    overflow: hidden;
    height: 600px;
    box-shadow: 0 25px 50px -12px var(--glass-shadow);
}

#canvas-container {
    width: 100%;
    height: 100%;
    background: var(--bg-main);
}

.visualizer-overlay {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    text-align: right;
    z-index: 10;
    pointer-events: none;
    background: var(--card-overlay);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    box-shadow: 0 8px 32px var(--glass-shadow);
    max-width: calc(100% - 3rem);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.date-time {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    background: var(--history-bg);
    padding: 0.5rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    padding: 1.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-align: center;
    box-shadow: 0 4px 20px var(--glass-shadow);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.stat-card label {
    font-size: 0.8rem;
    color: var(--text-dim);
    display: block;
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 1.85rem;
    line-height: 1;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.5px;
    margin: 0.5rem 0;
}

.stat-card .trend {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.card {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px var(--glass-shadow);
}

.manual-control-section h3 {
    margin-bottom: 0.5rem;
}

.formula-info {
    background: var(--card-overlay);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 15px var(--glass-shadow);
    transition: all 0.3s ease;
}

.formula-info:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.formula-info h4 {
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
}

.formula-info p {
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.6;
    margin: 0;
}

.dashboard-header {
    display: flex;
    flex-direction: column;
    gap: 0.50rem;
}

.sidebar-logo-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-logo {
    height: 48px;
    width: auto;
    background: var(--card-overlay);
    padding: 8px;
    border-radius: 12px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px var(--glass-shadow);
}

.dashboard-header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -1.5px;
    background: linear-gradient(135deg, var(--text-main), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0;
}

.dashboard-header p {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.control-group {
    margin-bottom: 25px;
}

.control-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.control-header label {
    font-weight: 600;
    color: var(--text-main);
}

.history-stats {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.theme-toggle-btn {
    background: var(--bg-main);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 12px;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}

.theme-toggle-btn:hover {
    background: var(--border);
}

.nav-link-btn {
    text-decoration: none;
    background: var(--card-overlay);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.5rem 1.25rem;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    backdrop-filter: blur(4px);
}

.nav-link-btn:hover {
    background: var(--border);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--glass-shadow);
}

.nav-link-btn span {
    font-size: 1rem;
}

.login-btn-header {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.2s;
    white-space: nowrap;
}

.login-btn-header:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.admin-only {
    display: none; /* Hidden by default */
}

body.logged-in .admin-only {
    display: block;
}

body.logged-in #login-btn {
    display: none;
}

body.logged-in #logout-btn {
    display: block;
}

#logout-btn {
    display: none;
    background: #ef4444;
}

#logout-btn:hover {
    background: #dc2626;
}

.percent-badge {
    background: var(--input-bg);
    color: var(--primary);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    border: 1px solid var(--border);
}

/* Voice Over Card */
.voice-over-section {
    position: relative;
    overflow: hidden;
}

.voice-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.voice-title-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.track-indicator {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.live-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--text-dim);
    background: var(--input-bg);
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 1px;
}

.live-indicator.playing {
    color: #ef4444;
}

.live-indicator.playing .dot {
    background: #ef4444;
    box-shadow: 0 0 8px #ef4444;
    animation: pulseAudio 1s infinite;
}

@keyframes pulseAudio {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.5); opacity: 0.5; }
    100% { transform: scale(1); opacity: 1; }
}

.dot {
    width: 6px;
    height: 6px;
    background: var(--text-dim);
    border-radius: 50%;
}

.audio-mini-player {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 1.5rem;
    background: var(--history-bg);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.audio-main-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
}

.nav-btn {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1rem;
    transition: all 0.2s;
    color: var(--text-main);
}

.nav-btn:hover {
    background: var(--border);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--glass-shadow);
}

.play-btn-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.4rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    flex-shrink: 0;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.play-btn-circle:hover {
    transform: scale(1.1);
    background: var(--primary-dark);
}

.player-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.waveform {
    display: flex;
    align-items: center;
    gap: 3px;
    height: 18px;
}

.waveform .bar {
    width: 3px;
    height: 40%;
    background: var(--primary);
    opacity: 0.3;
    border-radius: 2px;
    transition: all 0.2s ease;
}

.voice-over-section.playing .waveform .bar {
    animation: waveAudio 1s infinite ease-in-out;
    opacity: 1;
}

.waveform .bar:nth-child(1) { animation-delay: 0.1s; }
.waveform .bar:nth-child(2) { animation-delay: 0.2s; }
.waveform .bar:nth-child(3) { animation-delay: 0.3s; }
.waveform .bar:nth-child(4) { animation-delay: 0.4s; }
.waveform .bar:nth-child(5) { animation-delay: 0.5s; }
.waveform .bar:nth-child(6) { animation-delay: 0.6s; }
.waveform .bar:nth-child(7) { animation-delay: 0.7s; }
.waveform .bar:nth-child(8) { animation-delay: 0.8s; }
.waveform .bar:nth-child(9) { animation-delay: 0.9s; }
.waveform .bar:nth-child(10) { animation-delay: 1.0s; }

@keyframes waveAudio {
    0%, 100% { height: 40%; transform: scaleY(1); }
    50% { height: 100%; transform: scaleY(1.2); }
}

.time-info {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-dim);
    font-family: monospace;
}

.custom-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    background: var(--input-bg);
    border-radius: 5px;
    outline: none;
}

.custom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 28px;
    height: 28px;
    background: white;
    border: 4px solid var(--primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px var(--primary-glow);
    transition: all 0.2s;
}

.custom-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px var(--primary-glow);
}

.date-time-input {
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.75rem;
    border-radius: 12px;
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: all 0.2s;
    width: 100%;
}

.date-time-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

.btn-primary {
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--primary-glow);
}

.btn-primary:active {
    transform: translateY(-1px);
}

.btn-secondary {
    width: 100%;
    background: var(--card-bg);
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: 1rem;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: var(--glass-blur);
}

.btn-secondary:hover {
    background: var(--border);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--glass-shadow);
}

.btn-secondary:active {
    transform: translateY(-1px);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-item {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    padding: 1.5rem;
    border-radius: var(--radius-md);
    position: relative;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.history-item:hover {
    border-color: var(--primary);
    box-shadow: 0 10px 25px var(--glass-shadow);
    transform: translateX(5px);
}

.history-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
    padding-right: 32px;
}

.btn-delete {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 4px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-delete:hover {
    color: #ef4444;
    background: rgba(239, 68, 68, 0.1);
}

.history-stats {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Footer Styles */
footer {
    margin-top: 4rem;
    padding: 2.5rem 2rem;
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px var(--glass-shadow);
    position: relative;
    overflow: hidden;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    opacity: 0.5;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2.5rem;
}

.footer-branding {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.footer-logos {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-right: 2rem;
    border-right: 1px solid var(--border);
}

.footer-logo {
    height: 45px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px var(--glass-shadow));
}

.footer-text h3 {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--text-main), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}

.footer-text h3 span {
    font-size: 1rem;
    font-weight: 300;
    color: var(--primary);
    -webkit-text-fill-color: var(--primary); /* Reset for gradient text */
}

.footer-text p {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 4px;
}

.footer-web-links {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 12px;
}

.footer-web-links a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
}

.footer-web-links a:hover {
    color: var(--secondary);
    transform: translateX(4px);
}

.footer-web-links a i {
    font-size: 0.75rem;
    opacity: 0.7;
}

.footer-copyright {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-dim);
    font-size: 0.95rem;
    font-weight: 600;
    background: var(--history-bg);
    padding: 1rem 1.5rem;
    border-radius: 14px;
    border: 1px solid var(--border);
}

.footer-socials {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    border-top: 1px solid var(--border);
    padding-top: 0.75rem;
    width: 100%;
    justify-content: center;
}

.footer-socials a {
    color: var(--text-dim);
    font-size: 1.2rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-socials a:hover {
    color: var(--primary);
    transform: translateY(-3px) scale(1.1);
}

.pdf-container {
    background: var(--history-bg);
    border-radius: 15px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 10px var(--shadow);
}

.pdf-container iframe {
    display: block;
    background: white;
}

.pdf-section .btn-primary {
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.pdf-section .btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .app-container {
        padding: 1rem;
    }

    main {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .visualizer-card {
        height: 500px;
    }

    .dashboard-panel {
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .app-container {
        padding: 1rem 0.75rem 4rem 0.75rem;
    }

    header {
        flex-direction: column;
        text-align: center;
        gap: 1.25rem;
        padding: 1.5rem 1rem;
    }

    footer {
        margin-top: 2.5rem;
        padding: 2.5rem 1.5rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .footer-branding {
        flex-direction: column;
        gap: 1.5rem;
    }

    .footer-logos {
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding-bottom: 1.5rem;
        width: 100%;
        justify-content: center;
    }

    .footer-copyright {
        width: 100%;
        text-align: center;
    }

    .logo {
        flex-direction: column;
        gap: 0.75rem;
    }

    .logo-group {
        padding-right: 0;
        border-right: none;
        gap: 0.5rem;
    }

    .logo-text {
        align-items: center;
    }

    .logo h1 {
        font-size: 1.35rem;
    }

    .header-actions {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    .date-time {
        font-size: 0.85rem;
        padding: 0.4rem 0.75rem;
        order: -1;
    }

    .visualizer-card {
        height: 350px;
        border-radius: 20px;
    }

    .visualizer-overlay {
        top: 1rem;
        right: 1rem;
        text-align: right;
        padding: 0.75rem;
    }

    .visualizer-overlay h3 {
        font-size: 1rem;
    }

    .card {
        padding: 1.5rem;
        border-radius: 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card .value {
        font-size: 1.75rem;
    }

    .btn-primary {
        padding: 0.85rem;
    }
}

.fullscreen-btn {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(15, 23, 42, 0.8) !important; /* Stronger dark background */
    backdrop-filter: blur(12px);
    border: 2px solid rgba(16, 185, 129, 0.5); /* Emerald border */
    color: #10b981;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    cursor: pointer;
    z-index: 999; /* Higher priority */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.fullscreen-btn:hover {
    background: var(--primary) !important;
    color: white;
    transform: scale(1.15) rotate(90deg);
}

/* HUD Styling */
.visualizer-stats-hud {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 998;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.hud-item {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(10px);
    padding: 10px 18px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.hud-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.hud-value {
    font-size: 1.15rem;
    font-weight: 800;
    color: white;
}

.hud-unit {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
}

.hud-meta {
    border-left-color: #64748b;
    opacity: 0.9;
}

.hud-meta .hud-label { color: #94a3b8; }
.hud-meta .hud-value { font-size: 0.95rem; font-weight: 600; }

/* Fix for Fullscreen Mode */
#canvas-container:fullscreen {
    background: #0f172a;
    width: 100vw;
    height: 100vh;
}

#canvas-container:fullscreen .visualizer-overlay {
    top: 20px;
    left: auto;
    right: 20px;
    width: auto;
    text-align: right;
}

@media (max-width: 768px) {
    .visualizer-stats-hud {
        top: auto;
        bottom: 60px; /* Above the fullscreen button */
        left: 0;
        right: 0;
        flex-direction: row;
        justify-content: center;
        gap: 0;
        padding: 0 10px;
        width: 100%;
    }
    
    .hud-item {
        padding: 4px 8px;
        background: rgba(15, 23, 42, 0.5); /* Semi-transparent single bar look */
        border: none;
        border-radius: 0;
        flex: none;
        box-shadow: none;
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 5px;
        border-right: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .hud-item:first-child { border-radius: 8px 0 0 8px; }
    .hud-item:last-child { border-radius: 0 8px 8px 0; border-right: none; }
    
    .hud-label {
        display: none; /* Hide labels to simplify */
    }
    
    .hud-value {
        font-size: 0.75rem;
        font-weight: 700;
    }

    .hud-unit {
        font-size: 0.7rem;
    }

    .hud-meta {
        margin-top: 0;
        min-width: auto;
    }
}

/* Pseudo-Fullscreen Support (Common for Visualizer and Poster) */
.mobile-fullscreen-active {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999 !important;
    border-radius: 0 !important;
    margin: 0 !important;
    background: var(--bg-main) !important;
}

.mobile-fullscreen-active #canvas-container,
.mobile-fullscreen-active #poster-canvas-container {
    width: 100% !important;
    height: 100% !important;
    padding-top: 0 !important; /* Reset ratio on full screen */
    border-radius: 0 !important;
}

.mobile-fullscreen-active .fullscreen-btn {
    bottom: 30px;
    right: 30px;
    background: var(--primary) !important;
    color: white !important;
}

/* Ensure Poster Fullscreen button is visible */
#poster-canvas-container .fullscreen-btn {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    z-index: 15;
    background: rgba(15, 23, 42, 0.6);
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.15rem;
        text-align: center;
    }

    .brand-subtitle {
        font-size: 0.65rem;
    }

    .visualizer-card {
        height: 300px;
    }
}

/* 3D Floating Labels */
.wadah-label {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 12px;
    color: var(--text-main);
    font-size: 0.9rem;
    font-weight: 700;
    pointer-events: none;
    box-shadow: 0 8px 32px var(--glass-shadow);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
    animation: fadeIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.wadah-label::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--primary);
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Modal Styles */
.modal-admin {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal-admin-content {
    background: var(--card-bg);
    backdrop-filter: var(--glass-blur);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 400px;
    position: relative;
    box-shadow: 0 25px 50px -12px var(--glass-shadow);
    border: 1px solid var(--border);
}

.modal-admin-content h2 {
    margin-bottom: 0.5rem;
    text-align: center;
}

.modal-admin-content p {
    text-align: center;
    color: var(--text-dim);
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: var(--input-bg);
    color: var(--text-main);
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dim);
}