/* ==================== VARIABLES ==================== */
:root {
    /* Web3 Color Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    
    --accent-purple: #8b5cf6;
    --accent-purple-dark: #7c3aed;
    --accent-pink: #ec4899;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    
    --christmas-red: #dc2626;
    --christmas-red-dark: #b91c1c;
    --christmas-green: #16a34a;
    --christmas-gold: #fbbf24;
    
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    --gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
    --gradient-gold: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    --gradient-red: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-green: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    
    --shadow-glow-purple: 0 0 40px rgba(139, 92, 246, 0.4);
    --shadow-glow-gold: 0 0 40px rgba(251, 191, 36, 0.4);
    --shadow-glow-red: 0 0 30px rgba(239, 68, 68, 0.5);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ==================== APP CONTAINER ==================== */
#app {
    position: relative;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

/* ==================== CANVAS ==================== */
#scene3d {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: radial-gradient(ellipse at center bottom, #1e1b4b 0%, #0f172a 40%, #020617 100%);
}

#scene {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

/* ==================== UI OVERLAY ==================== */
#ui {
    position: absolute;
    inset: 0;
    z-index: 10;
    pointer-events: none;
    display: flex;
    flex-direction: column;
}

#ui > * {
    pointer-events: auto;
}

/* ==================== HEADER ==================== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    background: linear-gradient(180deg, rgba(0,0,0,0.6) 0%, transparent 100%);
    gap: 15px;
    flex-wrap: wrap;
}

/* ==================== BADGE ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.badge--live {
    background: var(--gradient-red);
    box-shadow: var(--shadow-glow-red);
    animation: pulse-glow 2s ease-in-out infinite;
}

.badge--live::before {
    content: '';
    width: 10px;
    height: 10px;
    background: white;
    border-radius: 50%;
    animation: pulse-dot 1.5s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(239, 68, 68, 0.4); }
    50% { box-shadow: 0 0 35px rgba(239, 68, 68, 0.7); }
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

/* ==================== TIMER ==================== */
.timer {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    background: rgba(139, 92, 246, 0.15);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-full);
    backdrop-filter: blur(10px);
}

.timer__label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.timer__value {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 700;
    color: var(--christmas-gold);
    text-shadow: 0 0 20px rgba(251, 191, 36, 0.5);
    font-variant-numeric: tabular-nums;
}

/* ==================== BRAND ==================== */
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 22px;
    background: var(--gradient-purple);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-glow-purple);
}

.brand__icon {
    font-size: 26px;
    animation: bounce-subtle 2s ease-in-out infinite;
}

.brand__text {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

@keyframes bounce-subtle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

/* ==================== CHARITY BANNER ==================== */
.charity-banner {
    position: absolute;
    top: 85px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 28px;
    background: linear-gradient(135deg, rgba(22, 163, 74, 0.95) 0%, rgba(21, 128, 61, 0.95) 100%);
    border: 2px solid var(--christmas-gold);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-glow-gold), 0 20px 50px rgba(0, 0, 0, 0.3);
    animation: float 4s ease-in-out infinite;
    max-width: calc(100% - 40px);
}

@keyframes float {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(-6px); }
}

.charity-banner__icon {
    font-size: 28px;
    animation: heartbeat 1.2s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    15% { transform: scale(1.15); }
    30% { transform: scale(1); }
    45% { transform: scale(1.1); }
}

.charity-banner__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.charity-banner__title {
    font-family: var(--font-display);
    font-size: 14px;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-align: center;
}

.charity-banner__subtitle {
    font-size: 12px;
    font-weight: 500;
    color: var(--christmas-gold);
}

/* ==================== NOW PLAYING ==================== */
.now-playing {
    position: absolute;
    bottom: 110px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px 32px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.9) 0%, rgba(236, 72, 153, 0.9) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-glow-purple), 0 20px 60px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    min-width: 380px;
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.now-playing.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.now-playing__icon {
    font-size: 38px;
    animation: music-bounce 0.6s ease-in-out infinite alternate;
}

@keyframes music-bounce {
    from { transform: translateY(0) rotate(-8deg); }
    to { transform: translateY(-6px) rotate(8deg); }
}

.now-playing__info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.now-playing__label {
    font-size: 11px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.now-playing__title {
    font-family: var(--font-display);
    font-size: 18px;
    font-weight: 700;
    color: white;
}

/* ==================== VISUALIZER ==================== */
.visualizer {
    display: flex;
    align-items: flex-end;
    gap: 5px;
    height: 40px;
}

.visualizer__bar {
    width: 6px;
    background: var(--christmas-gold);
    border-radius: 3px;
    transition: height 0.1s ease;
}

.visualizer.active .visualizer__bar {
    animation: visualize 0.5s ease-in-out infinite alternate;
}

.visualizer__bar:nth-child(1) { height: 25%; animation-delay: 0ms; }
.visualizer__bar:nth-child(2) { height: 50%; animation-delay: 100ms; }
.visualizer__bar:nth-child(3) { height: 80%; animation-delay: 150ms; }
.visualizer__bar:nth-child(4) { height: 40%; animation-delay: 200ms; }
.visualizer__bar:nth-child(5) { height: 65%; animation-delay: 250ms; }
.visualizer__bar:nth-child(6) { height: 35%; animation-delay: 300ms; }

@keyframes visualize {
    from { transform: scaleY(0.4); }
    to { transform: scaleY(1); }
}

/* ==================== CONTROLS ==================== */
.controls {
    position: absolute;
    bottom: 35px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 14px;
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.controls.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn--primary {
    background: var(--gradient-green);
    color: white;
    box-shadow: 0 0 30px rgba(34, 197, 94, 0.4);
    min-width: 180px;
}

.btn--primary:hover {
    box-shadow: 0 0 45px rgba(34, 197, 94, 0.6);
    transform: translateY(-2px);
}

.btn--primary.playing {
    background: var(--gradient-red);
    box-shadow: 0 0 30px rgba(239, 68, 68, 0.4);
}

.btn--primary.playing:hover {
    box-shadow: 0 0 45px rgba(239, 68, 68, 0.6);
}

.btn--secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn--secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.btn--secondary.active {
    background: rgba(251, 191, 36, 0.2);
    color: var(--christmas-gold);
    border-color: var(--christmas-gold);
}

.btn__icon {
    font-size: 18px;
}

.btn--mega {
    padding: 22px 56px;
    font-size: 24px;
    background: var(--gradient-purple);
    box-shadow: var(--shadow-glow-purple);
    margin-bottom: 28px;
    animation: mega-pulse 2.5s ease-in-out infinite;
}

@keyframes mega-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 40px rgba(139, 92, 246, 0.4); }
    50% { transform: scale(1.02); box-shadow: 0 0 60px rgba(236, 72, 153, 0.6); }
}

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

/* ==================== BREAK OVERLAY ==================== */
.break-overlay {
    position: absolute;
    inset: 0;
    z-index: 50;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(10, 10, 15, 0.97) 0%, rgba(18, 18, 26, 0.97) 100%);
    backdrop-filter: blur(20px);
    text-align: center;
    padding: 40px;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.break-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.break-overlay__icon {
    font-size: 80px;
    margin-bottom: 24px;
    animation: bounce-subtle 2s ease-in-out infinite;
}

.break-overlay__title {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: var(--christmas-gold);
    margin-bottom: 16px;
}

.break-overlay__text {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.break-overlay__timer {
    font-family: var(--font-display);
    font-size: 72px;
    font-weight: 700;
    color: var(--accent-purple);
    text-shadow: 0 0 40px rgba(139, 92, 246, 0.5);
    margin: 24px 0;
    font-variant-numeric: tabular-nums;
}

.break-overlay__charity {
    margin-top: 32px;
    padding: 20px 40px;
    background: rgba(22, 163, 74, 0.2);
    border: 2px solid var(--christmas-gold);
    border-radius: var(--radius-lg);
}

.break-overlay__charity-text {
    font-size: 16px;
    color: white;
}

/* ==================== START OVERLAY ==================== */
.start-overlay {
    position: absolute;
    inset: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, #12121a 0%, #0a0a0f 70%);
    padding: 30px;
    overflow-y: auto;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.start-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.start-content {
    max-width: 600px;
    text-align: center;
}

.start-content__icon {
    font-size: 110px;
    display: inline-block;
    animation: wave 1.5s ease-in-out infinite;
    filter: drop-shadow(0 0 50px rgba(251, 191, 36, 0.5));
}

@keyframes wave {
    0%, 100% { transform: rotate(-12deg) scale(1); }
    50% { transform: rotate(12deg) scale(1.05); }
}

.start-content__title {
    font-family: var(--font-display);
    font-size: 56px;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 24px 0 12px;
    letter-spacing: -1px;
}

.start-content__subtitle {
    font-size: 24px;
    color: var(--text-secondary);
    margin-bottom: 28px;
}

.start-content__badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--gradient-purple);
    border-radius: var(--radius-full);
    font-family: var(--font-display);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 32px;
    box-shadow: var(--shadow-glow-purple);
}

/* ==================== INTRO CARD ==================== */
.intro-card {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(236, 72, 153, 0.15) 100%);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 28px;
}

.intro-card__text {
    font-size: 20px;
    color: var(--text-secondary);
    margin: 10px 0;
}

.intro-card__text strong {
    color: var(--christmas-gold);
    font-weight: 600;
}

.intro-card__highlight {
    font-family: var(--font-display);
    font-size: 42px;
    font-weight: 700;
    background: var(--gradient-red);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 16px 0;
}

.intro-card__subtext {
    font-size: 14px;
    color: var(--text-muted);
    margin-top: 16px;
}

/* ==================== CHARITY CARD ==================== */
.charity-card {
    background: linear-gradient(135deg, rgba(22, 163, 74, 0.25) 0%, rgba(21, 128, 61, 0.25) 100%);
    border: 3px solid var(--christmas-gold);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 32px;
    animation: glow-pulse 3s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { box-shadow: 0 0 30px rgba(251, 191, 36, 0.2); }
    50% { box-shadow: 0 0 50px rgba(251, 191, 36, 0.5); }
}

.charity-card__header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 700;
    color: var(--christmas-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.charity-card__amount {
    font-family: var(--font-display);
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin: 12px 0;
}

.charity-card__arrow {
    font-size: 32px;
    margin: 12px 0;
    animation: arrow-bounce 1s ease-in-out infinite;
}

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

.charity-card__destination {
    font-family: var(--font-display);
    font-size: 32px;
    font-weight: 700;
    color: var(--christmas-gold);
    text-shadow: 0 0 30px rgba(251, 191, 36, 0.4);
    margin: 12px 0;
}

.charity-card__description {
    font-size: 18px;
    color: var(--text-secondary);
}

.charity-card__footer {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 16px;
}

/* ==================== FEATURES ==================== */
.features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}

.features__item {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    font-size: 14px;
    color: var(--text-secondary);
}

/* ==================== UTILITIES ==================== */
.hidden {
    display: none !important;
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .header {
        padding: 15px 20px;
    }
    
    .badge, .timer, .brand {
        padding: 8px 14px;
        font-size: 12px;
    }
    
    .charity-banner {
        top: 75px;
        padding: 12px 20px;
        gap: 12px;
    }
    
    .charity-banner__title {
        font-size: 11px;
    }
    
    .now-playing {
        min-width: auto;
        width: calc(100% - 40px);
        padding: 14px 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .start-content__title {
        font-size: 40px;
    }
    
    .start-content__icon {
        font-size: 80px;
    }
    
    .intro-card__highlight {
        font-size: 32px;
    }
    
    .charity-card__amount,
    .charity-card__destination {
        font-size: 22px;
    }
    
    .btn--mega {
        padding: 18px 40px;
        font-size: 20px;
    }
}