/*
 * Karaoke Night - Modern Neon Aesthetic
 * A vibrant nightclub-inspired design
 */

:root {
    /* Color palette - Electric neon */
    --bg-deep: #0a0a0f;
    --bg-card: rgba(18, 18, 28, 0.85);
    --bg-card-hover: rgba(28, 28, 42, 0.9);

    --neon-pink: #ff2d75;
    --neon-pink-glow: rgba(255, 45, 117, 0.4);
    --neon-purple: #b14aed;
    --neon-purple-glow: rgba(177, 74, 237, 0.4);
    --neon-blue: #00d4ff;
    --neon-blue-glow: rgba(0, 212, 255, 0.3);
    --neon-green: #39ff14;

    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.4);

    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(177, 74, 237, 0.3);

    /* Typography */
    --font-display: 'Bebas Neue', sans-serif;
    --font-body: 'Outfit', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    background: var(--bg-deep);
}

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Effects */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(177, 74, 237, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(177, 74, 237, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    z-index: 0;
}

.glow-1 {
    width: 600px;
    height: 600px;
    background: var(--neon-purple-glow);
    top: -200px;
    right: -200px;
    animation: float 8s ease-in-out infinite;
}

.glow-2 {
    width: 500px;
    height: 500px;
    background: var(--neon-pink-glow);
    bottom: -200px;
    left: -200px;
    animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(30px, 30px); }
}

/* Container */
.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-xl);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--space-2xl);
    animation: fadeInDown 0.6s ease-out;
}

.header-top {
    margin-bottom: var(--space-md);
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--neon-purple);
}

.logo {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 5rem);
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
}

.logo-icon {
    font-size: 0.8em;
    animation: bounce 2s ease-in-out infinite;
}

.logo-text {
    background: linear-gradient(135deg, var(--text-primary), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-text .accent {
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-muted);
    font-size: 1.1rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-top: var(--space-sm);
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Main Content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    flex: 1;
}

@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    backdrop-filter: blur(20px);
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.request-card {
    animation-delay: 0.1s;
}

.queue-card {
    animation-delay: 0.2s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-subtle);
}

.card-header h2 {
    font-family: var(--font-display);
    font-size: 1.8rem;
    letter-spacing: 0.05em;
}

.card-icon {
    font-size: 1.5rem;
}

.queue-count {
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    color: white;
    font-weight: 600;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    min-width: 40px;
    text-align: center;
}

/* Form Styles */
.form-group {
    margin-bottom: var(--space-lg);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.form-group .optional {
    color: var(--text-muted);
    font-weight: 400;
}

.form-group input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.form-group input:focus {
    outline: none;
    border-color: var(--neon-purple);
    box-shadow: 0 0 20px var(--neon-purple-glow);
    background: rgba(255, 255, 255, 0.08);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    width: 100%;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    color: white;
    box-shadow: 0 4px 20px var(--neon-purple-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px var(--neon-purple-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    transition: transform 0.3s ease;
}

.btn-primary:hover .btn-icon {
    transform: translateX(4px);
}

/* Form Message */
.form-message {
    margin-top: var(--space-lg);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 500;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(57, 255, 20, 0.1);
    border: 1px solid rgba(57, 255, 20, 0.3);
    color: var(--neon-green);
}

.form-message.error {
    display: block;
    background: rgba(255, 45, 117, 0.1);
    border: 1px solid rgba(255, 45, 117, 0.3);
    color: var(--neon-pink);
}

/* Queue List */
.queue-list {
    max-height: 500px;
    overflow-y: auto;
    padding-right: var(--space-sm);
}

.queue-list::-webkit-scrollbar {
    width: 6px;
}

.queue-list::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.queue-list::-webkit-scrollbar-thumb {
    background: var(--neon-purple);
    border-radius: 3px;
}

.queue-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-sm);
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.queue-line-1 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.queue-line-2 {
    font-size: 0.85rem;
}

.queue-item:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-glow);
}

.queue-item:first-child {
    background: linear-gradient(135deg, rgba(177, 74, 237, 0.15), rgba(255, 45, 117, 0.1));
    border-color: var(--neon-purple);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.queue-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 0.8rem;
    font-weight: 600;
    margin-right: var(--space-sm);
    color: var(--text-secondary);
}

.queue-song {
    font-weight: 600;
    color: var(--text-primary);
}

.queue-separator {
    color: var(--text-muted);
}

.queue-artist {
    color: var(--neon-purple);
}

.queue-dot {
    color: var(--text-muted);
}

.queue-singer {
    color: var(--text-secondary);
}

.queue-youtube {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-blue);
    text-decoration: none;
    margin-left: auto;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.queue-youtube:hover {
    background: rgba(0, 212, 255, 0.1);
    color: var(--text-primary);
}

.empty-queue {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
}

.empty-queue-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

/* Loading Spinner */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--neon-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--space-md);
}

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

/* Footer */
.footer {
    text-align: center;
    padding: var(--space-xl) 0;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===============================
   ADMIN STYLES
   =============================== */

.admin-body {
    background: var(--bg-deep);
}

.admin-container {
    max-width: 1000px;
}

.admin-main {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

/* Stats Row */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    animation: fadeInUp 0.4s ease-out;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--neon-purple);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.played .stat-number {
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card.total .stat-number {
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Filter Tabs */
.filter-tabs {
    display: flex;
    gap: var(--space-sm);
}

.filter-tab {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-tab:hover {
    border-color: var(--neon-purple);
    color: var(--text-primary);
}

.filter-tab.active {
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    border-color: transparent;
    color: white;
}

/* Admin Queue Card */
.admin-queue-card {
    animation-delay: 0.1s;
}

.admin-queue-list {
    max-height: 600px;
    overflow-y: auto;
}

.admin-queue-item {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin-bottom: var(--space-sm);
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.admin-item-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.admin-line-1 {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.admin-line-2 {
    font-size: 0.85rem;
}

.admin-queue-item:hover {
    background: var(--bg-card-hover);
}

.admin-queue-item.played {
    background: rgba(255, 255, 255, 0.03);
}

.admin-queue-item.next {
    background: linear-gradient(135deg, rgba(177, 74, 237, 0.15), rgba(255, 45, 117, 0.1));
    border-color: var(--neon-purple);
}

.admin-item-song {
    font-weight: 600;
    color: var(--text-primary);
}

.admin-separator,
.admin-dot {
    color: var(--text-muted);
}

.admin-item-artist {
    color: var(--neon-purple);
}

.admin-item-name {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.admin-youtube {
    color: var(--neon-blue);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all 0.3s;
}

.admin-youtube:hover {
    background: rgba(0, 212, 255, 0.1);
}

.admin-actions {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-left: auto;
}

/* Toggle Switch */
.toggle {
    position: relative;
    width: 44px;
    height: 24px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.toggle:hover {
    background: rgba(255, 255, 255, 0.15);
}

.toggle.active {
    background: linear-gradient(135deg, var(--neon-green), var(--neon-blue));
}

.toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.toggle.active::after {
    transform: translateX(20px);
}

/* Delete Button */
.delete-btn {
    background: transparent;
    border: 1px solid rgba(255, 45, 117, 0.3);
    color: var(--neon-pink);
    width: 28px;
    height: 28px;
    padding: 0;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.delete-btn:hover {
    background: rgba(255, 45, 117, 0.1);
    border-color: var(--neon-pink);
}

/* Next Badge */
.next-badge {
    background: linear-gradient(135deg, var(--neon-pink), var(--neon-purple));
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

/* ===============================
   LOGIN STYLES
   =============================== */

.login-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 80vh;
}

.login-card {
    width: 100%;
    max-width: 400px;
    animation: fadeInUp 0.6s ease-out;
}

.login-card .card-header {
    justify-content: center;
}

.login-card .card-header h2 {
    text-align: center;
}

.login-form .form-group {
    margin-bottom: var(--space-xl);
}

.login-form .btn-primary {
    margin-top: var(--space-md);
}

/* Logout Button */
.logout-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-full);
    font-family: var(--font-body);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.logout-btn:hover {
    border-color: var(--neon-pink);
    color: var(--neon-pink);
    background: rgba(255, 45, 117, 0.1);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        padding: var(--space-md);
    }

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

    .admin-queue-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .toggle-container {
        align-self: flex-end;
    }

    .filter-tabs {
        flex-wrap: wrap;
    }

    .header-top {
        flex-direction: column;
        gap: var(--space-sm);
    }
}