/* Premium Design System - Jewish Karaoke Revolution */

:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #141b2d;
    --accent-primary: #e6b800; /* Gold for Judaic feel */
    --accent-secondary: #00d2ff;
    --accent-glow: rgba(0, 210, 255, 0.4);
    --text-main: #f8f9fa;
    --text-sub: #a0aabf;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: rgba(0, 0, 0, 0.3);
    --font-family: 'Outfit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
}

body {
    background: radial-gradient(circle at 50% 50%, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    color: var(--text-main);
    font-family: var(--font-family);
    min-height: 100vh;
    overflow-x: hidden;
}

/* App Layout */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 1rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 2px;
}

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

.logo .subtext {
    font-size: 0.8rem;
    display: block;
    color: var(--text-sub);
    letter-spacing: 1px;
}

/* Navigation */
.main-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-sub);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-family);
    transition: var(--transition);
}

.nav-btn:hover, .nav-btn.active {
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* Main Content Views */
.app-content {
    flex: 1;
    position: relative;
    overflow-y: auto;
}

.view {
    display: none;
    opacity: 0;
    transition: opacity 0.3s ease;
    flex-direction: column;
    height: 100%;
}

.view.active {
    display: flex;
    opacity: 1;
}

/* Glass Cards */
.card {
position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 32px var(--glass-shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Grid & Lists */
.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.search-bar input {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 16px; /* Prevents auto-zoom on mobile */
}

.category-tabs {
    display: flex;
    justify-content: center; /* Center them for better aesthetic layout */
    gap: 0.5rem;
    margin-bottom: 2rem;
    flex-wrap: wrap; /* Auto wrap if viewport hits limit */
    padding-bottom: 0.5rem;
}

.tab-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-sub);
    padding: 0.6rem 1.25rem;
    border-radius: 20px; /* Pill shape */
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.tab-btn:hover, .tab-btn.active {
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 15px var(--accent-glow);
    transform: translateY(-2px);
}

.grid-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    flex: 1;
}

.song-card {
    cursor: pointer;
}

.song-card .subtitle {
    font-size: 0.9rem;
    color: var(--text-sub);
    margin-top: 0.25rem;
}

.difficulty {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    display: inline-block;
    margin-top: 0.5rem;
}

.difficulty.easy { background: #28a745; }
.difficulty.medium { background: #ffc107; color: #333; }
.difficulty.hard { background: #dc3545; }

/* Game Area */
.game-arena {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 1rem;
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.score-display {
    font-size: 1.25rem;
    color: var(--accent-primary);
}

.vibe-meter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.meter {
    width: 100px;
    height: 10px;
    background: var(--glass-bg);
    border-radius: 5px;
    overflow: hidden;
}

.meter .fill {
    width: 30%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-secondary), #fff);
    transition: width 0.3s ease;
}

/* Canvas & Scroll */
.canvas-wrapper {
    flex: 1;
    position: relative;
    background: #000;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
}

#karaoke-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.lyrics-overlay {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.8);
    background: rgba(0,0,0,0.5);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.2);
    pointer-events: none;
    white-space: nowrap;
}

.toggle-view-btn {
    /* position: absolute; */ /* Overridden for flex compatibility in header */
    z-index: 10;
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid var(--glass-border);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.toggle-view-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

#lyrics-karaoke-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: none; /* Controlled by JS toggle class */
    flex-wrap: wrap; /* Auto wrap words into lines */
    justify-content: center;
    align-items: center;
    background: rgba(0, 0, 0, 0.7);
    z-index: 5;
    padding: 2rem;
    box-sizing: border-box;
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    overflow-y: auto;
    gap: 0.5rem;
}

#lyrics-karaoke-overlay.active {
    display: flex;
}

.lyrics-word {
    display: inline-block;
    color: rgba(255, 255, 255, 0.4);
    transition: color 0.1s ease, transform 0.1s ease;
}

.lyrics-word.active {
    color: #fff;
    text-shadow: 0 0 20px rgba(255, 193, 7, 0.8), 0 0 40px rgba(255, 193, 7, 0.5);
    transform: scale(1.1);
}

.game-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: center;
}

.control-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-weight: 700;
    font-family: var(--font-family);
    cursor: pointer;
    transition: var(--transition);
}

.control-btn.play {
    background: var(--accent-secondary);
    color: #fff;
}

.control-btn.stop {
    background: #dc3545;
    color: #fff;
}

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

.control-btn.mute {
    padding-left: 1rem;
    padding-right: 1rem;
}

/* Forms */
.input-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

.input-group label {
    margin-bottom: 0.5rem;
    color: var(--text-sub);
}

.input-group input, .input-group textarea, .input-group select {
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    padding: 0.75rem;
    border-radius: 8px;
    font-family: var(--font-family);
}

.submit-btn {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #fff;
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.submit-btn:hover {
    box-shadow: 0 0 20px var(--accent-glow);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .view-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .grid-list {
        grid-template-columns: 1fr;
    }
    
    .lyrics-overlay {
        font-size: 1.2rem;
    }
}

/* Grade Modal Overlay */
.grade-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.85);
    z-index: 1000;
    display: none; /* Controlled by toggle */
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(20px);
}

.grade-overlay.active {
    display: flex;
}

.grade-modal {
    width: 90%;
    max-width: 500px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    text-align: center;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.grade-glass {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(233, 30, 99, 0.1) 0%, transparent 70%);
    animation: rotate-slow 20s linear infinite;
    z-index: 1;
}

.grade-content {
    position: relative;
    z-index: 2;
}

.grade-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.grade-letter {
    font-size: clamp(2.5rem, 8vw, 4.5rem); /* Reduced for text grades */
    font-weight: 900;
    margin-bottom: 1.5rem;
    text-shadow: 0 0 50px rgba(255, 193, 7, 0.8), 0 0 100px rgba(255, 193, 7, 0.4);
    color: #ffc107;
    font-family: 'Outfit', sans-serif;
}

.grade-stats {
    margin-bottom: 2.5rem;
    font-size: 1.2rem;
    color: rgba(255,255,255,0.8);
}

.grade-stats p {
    margin: 0.5rem 0;
}

.grade-actions {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

/* 🛠️ Admin Drawer (Side Panel Edit) */
.admin-drawer {
    position: fixed;
    top: 0;
    right: 0;
    width: 350px;
    height: 100vh;
    background: rgba(20, 24, 35, 0.95);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--glass-border);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
    transition: transform 0.3s ease;
    transform: translateX(100%);
}

.admin-drawer.open {
    transform: translateX(0);
}

.drawer-header {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.close-drawer-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
}

.drawer-content {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

.note-input-row {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 0.75rem;
    background: rgba(255,255,255,0.05);
    padding: 0.5rem;
    border-radius: 8px;
}

.note-input-row span {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.note-input-row input {
    background: rgba(0,0,0,0.3);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    padding: 0.25rem;
    border-radius: 4px;
    width: 100%;
}

.drawer-actions {
    padding: 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

@keyframes rotate-slow {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 🎤 Pronunciation Mode Overlay */
.pronunciation-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #c62828 !important; /* Rich red */
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 20;
    transition: background 0.3s ease;
}

.pronunciation-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.25rem;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 1rem;
}

.pronunciation-word {
    font-size: clamp(2rem, 12vw, 4.5rem); /* Scales down on narrow screens! */
    font-weight: 900;
    color: #ffffff;
    text-shadow: 0 4px 15px rgba(0,0,0,0.5);
    text-align: center;
    padding: 0 1rem;
    max-width: 90vw;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.volume-meter-container {
    width: 85%;
    max-width: 300px;
    height: 10px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    overflow: hidden;
    margin: 10px 0;
    backdrop-filter: blur(5px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.volume-meter-fill {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, #00ff88, #00d2ff);
    box-shadow: 0 0 10px rgba(0, 255, 136, 0.8);
    transition: width 0.05s linear;
}

.pronunciation-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: rgba(255,255,255,0.7);
    text-align: center;
    min-height: 2rem; /* Keep space if empty */
    transition: opacity 0.5s ease;
}

.pronunciation-overlay.success {
    background: #2e7d32 !important; /* Rich green for success */
}

/* Custom Confirm Modal */
.confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease-out;
}

.confirm-content {
    background: rgba(26, 27, 38, 0.95);
    border: 1px solid rgba(255, 68, 68, 0.3);
    border-radius: 16px;
    padding: 32px;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 40px rgba(255, 68, 68, 0.2);
}

.confirm-content h2 {
    color: #f44336;
    font-size: 1.5rem;
    margin-bottom: 12px;
    font-weight: 800;
}

.confirm-content p {
    color: #a9b1d6;
    font-size: 1rem;
    margin-bottom: 24px;
    line-height: 1.5;
}

.confirm-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.confirm-actions button {
    padding: 12px 24px;
    border-radius: 12px;
    font-weight: bold;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.confirm-actions .btn-secondary {
    background: #414868;
    color: white;
}

.confirm-actions .btn-danger {
    background: #f44336;
    color: white;
}

.confirm-actions .btn-danger:hover {
    background: #d32f2f;
    box-shadow: 0 4px 15px rgba(244, 67, 54, 0.4);
}

.confirm-actions button:hover {
    transform: translateY(-2px);
}