/**
 * @copyright reDim GmbH
 * @link      https://www.redim.de
 * @contact   team@redim.de
 */

/* ========================================
   CSS Custom Properties / Design Tokens
   ======================================== */

:root {
    /* Basis-Farben */
    --color-background: #0a0a0a;
    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;

    /* Beat-Reaktive Variable (wird von JS gesetzt) */
    --beat-intensity: 0;

    /* Theme: Festive (Default) */
    --color-primary: #FFD700;
    --color-secondary: #C0C0C0;
    --color-accent: #FF6347;
    --color-glow: rgba(255, 215, 0, 0.5);
    --color-card-bg: rgba(255, 215, 0, 0.1);
    --color-card-border: rgba(255, 215, 0, 0.3);

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

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Font Sizes */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 3rem;
    --font-size-4xl: 4rem;
}

/* Theme: Party */
[data-theme="party"] {
    --color-primary: #FF00FF;
    --color-secondary: #00FFFF;
    --color-accent: #FFFF00;
    --color-glow: rgba(255, 0, 255, 0.5);
    --color-card-bg: rgba(255, 0, 255, 0.1);
    --color-card-border: rgba(255, 0, 255, 0.3);
}

/* Theme: Elegant */
[data-theme="elegant"] {
    --color-background: #1a1a1a;
    --color-primary: #FFFFFF;
    --color-secondary: #D4AF37;
    --color-accent: #E8E8E8;
    --color-glow: rgba(255, 255, 255, 0.3);
    --color-card-bg: rgba(255, 255, 255, 0.05);
    --color-card-border: rgba(255, 255, 255, 0.2);
}

/* ========================================
   Music Style Themes (Player Screen)
   ======================================== */

/* DISCO - Funky, Glitzer, Spiegelkugel-Vibes */
[data-music-style="disco"] {
    --color-primary: #FF69B4;
    --color-secondary: #00CED1;
    --color-accent: #FFD700;
    --color-glow: rgba(255, 105, 180, 0.6);
    --style-gradient: linear-gradient(135deg, #FF69B4, #00CED1, #FFD700, #FF69B4);
}

[data-music-style="disco"] .player-screen {
    background: radial-gradient(ellipse at center,
        rgba(255, 105, 180, calc(0.1 + var(--beat-intensity) * 0.2)) 0%,
        transparent 70%);
}

[data-music-style="disco"] .equalizer-bar {
    background: linear-gradient(to top, #FF69B4, #00CED1, #FFD700);
    animation: disco-shimmer 1s ease-in-out infinite;
}

@keyframes disco-shimmer {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3) saturate(1.2); }
}

/* POP - Hell, Freundlich, Bunt */
[data-music-style="pop"] {
    --color-primary: #FF6B6B;
    --color-secondary: #4ECDC4;
    --color-accent: #FFE66D;
    --color-glow: rgba(255, 107, 107, 0.5);
    --style-gradient: linear-gradient(135deg, #FF6B6B, #4ECDC4);
}

[data-music-style="pop"] .player-screen {
    background: radial-gradient(ellipse at center,
        rgba(255, 107, 107, calc(0.08 + var(--beat-intensity) * 0.15)) 0%,
        transparent 70%);
}

[data-music-style="pop"] .equalizer-bar {
    background: linear-gradient(to top, #FF6B6B, #4ECDC4);
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

[data-music-style="pop"] .new-year-text {
    animation: pop-bounce 0.5s ease infinite;
}

@keyframes pop-bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

/* ROCK - Dunkel, Intensiv, Kraftvoll */
[data-music-style="rock"] {
    --color-primary: #E63946;
    --color-secondary: #1D3557;
    --color-accent: #F1FAEE;
    --color-glow: rgba(230, 57, 70, 0.6);
    --style-gradient: linear-gradient(135deg, #E63946, #1D3557);
}

[data-music-style="rock"] .player-screen {
    background:
        radial-gradient(ellipse at center,
            rgba(230, 57, 70, calc(0.1 + var(--beat-intensity) * 0.25)) 0%,
            transparent 60%),
        repeating-linear-gradient(45deg, transparent, transparent 10px,
            rgba(230, 57, 70, calc(0.02 + var(--beat-intensity) * 0.05)) 10px,
            rgba(230, 57, 70, calc(0.02 + var(--beat-intensity) * 0.05)) 20px);
}

[data-music-style="rock"] .equalizer-bar {
    background: linear-gradient(to top, #1D3557, #E63946);
    box-shadow: 0 0 15px rgba(230, 57, 70, 0.7);
}

[data-music-style="rock"] .new-year-text {
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* PUNK - Anarchisch, Neon, Chaotisch */
[data-music-style="punk"] {
    --color-primary: #39FF14;
    --color-secondary: #FF073A;
    --color-accent: #FFFF00;
    --color-glow: rgba(57, 255, 20, 0.7);
    --style-gradient: linear-gradient(135deg, #39FF14, #FF073A);
}

[data-music-style="punk"] .player-screen {
    background:
        radial-gradient(ellipse at 30% 20%,
            rgba(57, 255, 20, calc(0.15 + var(--beat-intensity) * 0.3)) 0%,
            transparent 50%),
        radial-gradient(ellipse at 70% 80%,
            rgba(255, 7, 58, calc(0.15 + var(--beat-intensity) * 0.3)) 0%,
            transparent 50%);
}

[data-music-style="punk"] .equalizer-bar {
    background: var(--color-primary);
    box-shadow: 0 0 20px var(--color-glow);
}

[data-music-style="punk"] .equalizer-bar:nth-child(odd) {
    background: var(--color-secondary);
    box-shadow: 0 0 20px rgba(255, 7, 58, 0.7);
}

[data-music-style="punk"] .new-year-text {
    animation: punk-glitch 0.3s ease infinite;
}

@keyframes punk-glitch {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-2px, 1px); }
    94% { transform: translate(2px, -1px); }
    96% { transform: translate(-1px, 2px); }
    98% { transform: translate(1px, -2px); }
}

/* METAL - Dunkel, Aggressiv, Feuer */
[data-music-style="metal"] {
    --color-primary: #FF4500;
    --color-secondary: #8B0000;
    --color-accent: #2F2F2F;
    --color-glow: rgba(255, 69, 0, 0.7);
    --style-gradient: linear-gradient(180deg, #FF4500, #8B0000, #2F2F2F);
}

[data-music-style="metal"] .player-screen {
    background:
        radial-gradient(ellipse at bottom,
            rgba(255, 69, 0, calc(0.2 + var(--beat-intensity) * 0.4)) 0%,
            transparent 60%),
        linear-gradient(to top,
            rgba(139, 0, 0, calc(0.1 + var(--beat-intensity) * 0.2)),
            transparent);
}

[data-music-style="metal"] .equalizer-bar {
    background: linear-gradient(to top, #8B0000, #FF4500, #FFD700);
    box-shadow: 0 0 25px rgba(255, 69, 0, 0.8);
    animation: metal-flame 0.2s ease infinite;
}

@keyframes metal-flame {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.2); }
}

[data-music-style="metal"] .new-year-text {
    text-shadow:
        0 0 10px #FF4500,
        0 0 20px #FF4500,
        0 0 40px #8B0000,
        0 0 80px #8B0000;
    animation: metal-pulse 1s ease-in-out infinite;
}

@keyframes metal-pulse {
    0%, 100% {
        text-shadow:
            0 0 10px #FF4500,
            0 0 20px #FF4500,
            0 0 40px #8B0000;
    }
    50% {
        text-shadow:
            0 0 20px #FF4500,
            0 0 40px #FF4500,
            0 0 60px #8B0000,
            0 0 100px #8B0000;
    }
}

/* RAP - Urban, Cool, Neon/Gold */
[data-music-style="rap"] {
    --color-primary: #FFD700;
    --color-secondary: #9400D3;
    --color-accent: #00FF7F;
    --color-glow: rgba(255, 215, 0, 0.6);
    --style-gradient: linear-gradient(135deg, #FFD700, #9400D3);
}

[data-music-style="rap"] .player-screen {
    background:
        radial-gradient(ellipse at center,
            rgba(148, 0, 211, calc(0.1 + var(--beat-intensity) * 0.2)) 0%,
            transparent 70%),
        linear-gradient(180deg, transparent 50%,
            rgba(255, 215, 0, calc(0.05 + var(--beat-intensity) * 0.1)) 100%);
}

[data-music-style="rap"] .equalizer-bar {
    background: linear-gradient(to top, #9400D3, #FFD700);
    box-shadow: 0 0 15px rgba(255, 215, 0, 0.5);
}

[data-music-style="rap"] .equalizer-container {
    border: 2px solid rgba(255, 215, 0, 0.3);
}

[data-music-style="rap"] .new-year-text {
    background: linear-gradient(135deg, #FFD700, #9400D3, #FFD700);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: rap-shine 3s ease infinite;
}

@keyframes rap-shine {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========================================
   Personalisierte Nachricht - Style-spezifisch
   ======================================== */

.custom-message {
    margin: var(--spacing-md) 0;
    opacity: 0;
    animation: message-fade-in 1s ease forwards;
    animation-delay: 0.5s;
}

.custom-message-text {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-primary);
    text-shadow: 0 0 20px var(--color-glow);
    text-align: center;
    padding: 0 var(--spacing-md);
}

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

/* DISCO - Regenbogen-Glitzer */
[data-music-style="disco"] .custom-message-text {
    background: linear-gradient(90deg, #FF69B4, #00CED1, #FFD700, #FF69B4);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: disco-rainbow 2s linear infinite, disco-sparkle 0.5s ease infinite;
}

@keyframes disco-rainbow {
    0% { background-position: 0% 50%; }
    100% { background-position: 300% 50%; }
}

@keyframes disco-sparkle {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.3); }
}

/* POP - Buchstabe für Buchstabe hüpfend */
[data-music-style="pop"] .custom-message {
    animation: pop-bounce-in 0.8s ease forwards;
    animation-delay: 0.5s;
}

[data-music-style="pop"] .custom-message-text {
    color: #FF6B6B;
    animation: pop-letter-bounce 0.6s ease infinite;
}

@keyframes pop-bounce-in {
    0% { opacity: 0; transform: scale(0.5) translateY(50px); }
    50% { transform: scale(1.1) translateY(-10px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes pop-letter-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* ROCK - Einschlag mit Erschütterung */
[data-music-style="rock"] .custom-message {
    opacity: 1;
    animation: rock-slam 0.8s ease forwards;
    animation-delay: 0.3s;
}

[data-music-style="rock"] .custom-message-text {
    color: #E63946;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    text-shadow: 0 0 10px rgba(230, 57, 70, 0.8);
}

@keyframes rock-slam {
    0% { opacity: 0; transform: scale(3) translateY(-100px); }
    30% { opacity: 1; }
    50% { transform: scale(0.85) translateY(10px); }
    70% { transform: scale(1.1) translateY(-5px); }
    85% { transform: scale(0.95) translateY(2px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

/* PUNK - Glitch-Effekt */
[data-music-style="punk"] .custom-message-text {
    color: #39FF14;
    animation: punk-glitch-text 0.3s ease infinite;
    text-shadow:
        2px 0 #FF073A,
        -2px 0 #00FFFF;
}

@keyframes punk-glitch-text {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-3px, 1px) skewX(2deg); }
    94% { transform: translate(3px, -1px) skewX(-2deg); }
    96% { transform: translate(-2px, 2px); }
    98% { transform: translate(2px, -2px) skewX(1deg); }
}

/* METAL - Flammen-Effekt */
[data-music-style="metal"] .custom-message {
    animation: metal-burn-in 1s ease forwards;
    animation-delay: 0.3s;
}

[data-music-style="metal"] .custom-message-text {
    background: linear-gradient(to top, #8B0000, #FF4500, #FFD700);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    font-weight: 900;
    letter-spacing: 0.05em;
    animation: metal-flame 0.2s ease infinite;
}

@keyframes metal-burn-in {
    0% { opacity: 0; transform: translateY(30px); filter: blur(10px); }
    50% { filter: blur(0); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes metal-flame {
    0%, 100% { text-shadow: 0 0 10px #FF4500, 0 0 20px #FF0000; }
    50% { text-shadow: 0 0 15px #FFD700, 0 0 30px #FF4500; }
}

/* RAP - Slide-In mit Gold-Glanz */
[data-music-style="rap"] .custom-message {
    animation: rap-slide-in 0.8s ease forwards;
    animation-delay: 0.3s;
}

[data-music-style="rap"] .custom-message-text {
    background: linear-gradient(135deg, #FFD700, #FFA500, #FFD700);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    animation: rap-gold-shine 2s ease infinite;
}

@keyframes rap-slide-in {
    0% { opacity: 0; transform: translateX(-100px); }
    100% { opacity: 1; transform: translateX(0); }
}

@keyframes rap-gold-shine {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========================================
   Base Styles
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    min-height: 100vh;
    overflow-x: hidden;
    /* Textauswahl verhindern */
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    line-height: 1.5;
}

/* ========================================
   Canvas Background
   ======================================== */

#fireworks-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ========================================
   Main Container
   ======================================== */

.main-container {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

/* ========================================
   Theme Selector
   ======================================== */

.theme-selector {
    position: fixed;
    top: var(--spacing-md);
    right: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 100;
}

.theme-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    background-size: 100% 100%;
}

.theme-btn:hover {
    transform: scale(1.1);
}

.theme-btn.active {
    box-shadow: 0 0 15px var(--color-glow);
    border-color: var(--color-primary);
}

.theme-btn[data-theme="festive"] {
    background: linear-gradient(135deg, #FFD700, #C0C0C0, #FF6347);
}

.theme-btn[data-theme="party"] {
    background: linear-gradient(135deg, #FF00FF, #00FFFF, #FFFF00);
}

.theme-btn[data-theme="elegant"] {
    background: linear-gradient(135deg, #FFFFFF, #D4AF37, #1a1a1a);
}

/* ========================================
   Countdown
   ======================================== */

.countdown-section {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.countdown-title {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.2em;
}

.countdown-display {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 60px;
}

.countdown-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: 0 0 20px var(--color-glow);
    line-height: 1;
}

.countdown-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: var(--spacing-xs);
}

.countdown-separator {
    font-size: var(--font-size-3xl);
    color: var(--color-secondary);
    align-self: flex-start;
    margin-top: 0;
}

/* ========================================
   Selection Screen
   ======================================== */

.selection-screen {
    width: 100%;
    max-width: 900px;
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.selection-screen.hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    position: absolute;
}

.section-title {
    font-size: var(--font-size-xl);
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary);
    text-shadow: 0 0 10px var(--color-glow);
}

/* ========================================
   Music Style Cards
   ======================================== */

.style-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.style-card {
    background: var(--color-card-bg);
    border: 2px solid var(--color-card-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.style-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, var(--color-glow) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.style-card:hover {
    transform: translateY(-5px) scale(1.02);
    border-color: var(--color-primary);
    box-shadow: 0 10px 40px var(--color-glow);
}

.style-card:hover::before {
    opacity: 0.2;
}

.style-card:active {
    transform: translateY(-2px) scale(1);
}

.style-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.style-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    position: relative;
    z-index: 1;
}

/* ========================================
   Player Screen
   ======================================== */

.player-screen {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.player-screen.hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    position: absolute;
}

/* ========================================
   Player Countdown (kompakte Version)
   ======================================== */

.player-countdown {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.player-countdown-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-family: 'Courier New', monospace;
}

.player-countdown-value {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary);
    text-shadow: 0 0 15px var(--color-glow);
    min-width: 2ch;
    display: inline-block;
}

.player-countdown-separator {
    font-size: var(--font-size-xl);
    color: var(--color-secondary);
    opacity: 0.8;
}

.player-countdown.midnight-reached {
    display: none;
}

/* ========================================
   New Year Message
   ======================================== */

.new-year-message {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.new-year-text {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-primary);
    text-shadow:
        0 0 20px var(--color-glow),
        0 0 40px var(--color-glow),
        0 0 60px var(--color-glow);
    animation: glow-pulse 2s ease-in-out infinite;
    /* Beat-reaktive Skalierung */
    transform: scale(calc(1 + var(--beat-intensity) * 0.05));
    transition: transform 0.05s ease-out;
}

.new-year-year {
    font-size: var(--font-size-4xl);
    display: none;
    margin-top: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Jahreszahl erst ab Mitternacht einblenden */
.new-year-text.is-new-year .new-year-year {
    display: block;
}

@keyframes glow-pulse {
    0%, 100% {
        text-shadow:
            0 0 20px var(--color-glow),
            0 0 40px var(--color-glow);
    }
    50% {
        text-shadow:
            0 0 30px var(--color-glow),
            0 0 60px var(--color-glow),
            0 0 80px var(--color-glow);
    }
}

/* Mitternachts-Explosion Animation */
.new-year-text.midnight-explosion {
    animation: midnight-explode 1.5s ease forwards;
}

@keyframes midnight-explode {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    20% {
        transform: scale(1.5);
        opacity: 0;
        filter: blur(10px);
    }
    21% {
        transform: scale(0.5);
        opacity: 0;
    }
    50% {
        transform: scale(1.3);
        opacity: 1;
        filter: blur(0);
    }
    70% {
        transform: scale(0.95);
    }
    85% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Nach Mitternacht - "Frohes Neues Jahr" Style */
.new-year-text.is-new-year .greeting-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary), var(--color-primary));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmer-text 3s ease infinite;
}

@keyframes shimmer-text {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* ========================================
   Equalizer
   ======================================== */

.equalizer-container {
    width: 100%;
    max-width: 500px;
    height: 120px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 4px;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
}

.equalizer-bar {
    flex: 1;
    max-width: 15px;
    background: linear-gradient(to top, var(--color-primary), var(--color-secondary));
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    height: var(--bar-height, 5%);
    transition: height 0.05s ease-out;
    box-shadow: 0 0 10px var(--color-glow);
}

/* ========================================
   DISCO Equalizer - Kreisförmig
   ======================================== */

.equalizer-disco {
    position: relative;
    width: 200px;
    height: 200px;
    max-width: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,105,180,0.1) 0%, transparent 70%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.equalizer-disco .equalizer-bar {
    position: absolute;
    width: 6px;
    height: var(--bar-height, 20px);
    max-width: none;
    bottom: 50%;
    left: 50%;
    transform-origin: bottom center;
    transform: translateX(-50%) rotate(calc(var(--bar-index) * 15deg));
    border-radius: 3px;
    background: linear-gradient(to top, #FF69B4, #00CED1, #FFD700);
    box-shadow: 0 0 10px rgba(255, 105, 180, 0.8);
}

/* ========================================
   POP Equalizer - Bubbles
   ======================================== */

.equalizer-pop {
    gap: 12px;
    align-items: center;
    justify-content: center;
    height: 150px;
}

.equalizer-pop .equalizer-bar {
    width: calc(20px + var(--bar-value, 0) * 30px);
    height: calc(20px + var(--bar-value, 0) * 30px);
    max-width: 60px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #FF8E8E, #FF6B6B);
    box-shadow:
        0 0 20px rgba(255, 107, 107, 0.5),
        inset 0 -5px 15px rgba(0,0,0,0.2);
    transform: translateY(calc((1 - var(--bar-value, 0)) * 30px));
    transition: all 0.1s ease-out;
}

.equalizer-pop .equalizer-bar:nth-child(even) {
    background: radial-gradient(circle at 30% 30%, #6EE7E7, #4ECDC4);
    box-shadow:
        0 0 20px rgba(78, 205, 196, 0.5),
        inset 0 -5px 15px rgba(0,0,0,0.2);
}

/* ========================================
   ROCK Equalizer - Waveform (gespiegelt)
   ======================================== */

.equalizer-rock {
    height: 160px;
    align-items: center;
    gap: 2px;
    background: linear-gradient(to bottom,
        transparent 0%,
        rgba(230, 57, 70, 0.1) 50%,
        transparent 100%);
}

.equalizer-rock .equalizer-bar {
    position: relative;
    height: var(--bar-height, 5%);
    min-height: 4px;
    border-radius: 2px;
    background: linear-gradient(to top, #1D3557, #E63946);
    box-shadow: 0 0 15px rgba(230, 57, 70, 0.7);
}

.equalizer-rock .equalizer-bar::before {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    height: var(--bar-height, 5%);
    background: linear-gradient(to right, #E63946, #1D3557);
    border-radius: 2px;
    transform: scaleY(-1);
    opacity: 0.6;
}

/* ========================================
   PUNK Equalizer - Chaos/Glitch
   ======================================== */

.equalizer-punk {
    gap: 0;
    background: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 10px,
        rgba(57, 255, 20, 0.05) 10px,
        rgba(57, 255, 20, 0.05) 20px
    );
}

.equalizer-punk .equalizer-bar {
    width: calc(8px + (var(--bar-index) % 3) * 8px);
    max-width: 24px;
    margin: 0 2px;
    border-radius: 0;
    background: var(--color-primary);
    box-shadow:
        0 0 20px rgba(57, 255, 20, 0.8),
        inset 0 0 10px rgba(255, 255, 255, 0.3);
    animation: punk-flicker 0.1s infinite;
    animation-delay: calc(var(--bar-index) * 0.02s);
}

.equalizer-punk .equalizer-bar:nth-child(odd) {
    background: #FF073A;
    box-shadow: 0 0 20px rgba(255, 7, 58, 0.8);
}

.equalizer-punk .equalizer-bar:nth-child(3n) {
    background: #FFFF00;
    box-shadow: 0 0 20px rgba(255, 255, 0, 0.8);
}

@keyframes punk-flicker {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

/* ========================================
   METAL Equalizer - Flammen
   ======================================== */

.equalizer-metal {
    height: 140px;
    gap: 3px;
    background: linear-gradient(to top, rgba(139, 0, 0, 0.2), transparent);
}

.equalizer-metal .equalizer-bar {
    position: relative;
    border-radius: 50% 50% 0 0;
    background: linear-gradient(to top, #8B0000, #FF4500, #FFD700);
    box-shadow:
        0 0 30px rgba(255, 69, 0, 0.8),
        0 -10px 20px rgba(255, 215, 0, 0.4);
    animation: metal-flame-bar 0.15s ease-in-out infinite;
    animation-delay: calc(var(--bar-index) * 0.03s);
}

.equalizer-metal .equalizer-bar::after {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 20px;
    background: radial-gradient(ellipse, rgba(255, 215, 0, 0.6), transparent);
    border-radius: 50%;
}

@keyframes metal-flame-bar {
    0%, 100% {
        transform: scaleX(1) scaleY(1);
    }
    50% {
        transform: scaleX(0.95) scaleY(1.05);
    }
}

/* ========================================
   RAP Equalizer - Kompaktes Boombox-Design
   ======================================== */

.equalizer-rap {
    flex-direction: row;
    justify-content: center;
    align-items: flex-end;
    gap: 3px;
    height: 80px;
    max-width: 300px;
    padding: var(--spacing-md);
    background: linear-gradient(180deg, rgba(20, 20, 20, 0.9), rgba(40, 40, 40, 0.8));
    border: 2px solid rgba(255, 215, 0, 0.4);
    border-radius: var(--radius-md);
    box-shadow:
        0 0 20px rgba(255, 215, 0, 0.2),
        inset 0 -2px 10px rgba(0, 0, 0, 0.5);
}

.equalizer-rap .equalizer-bar {
    flex: none;
    width: 12px;
    height: var(--bar-height, 5%);
    max-width: none;
    border-radius: 2px;
    background: linear-gradient(to top,
        #9400D3 0%,
        #FFD700 50%,
        #FF4500 100%);
    box-shadow:
        0 0 8px rgba(255, 215, 0, 0.6),
        0 0 2px rgba(255, 255, 255, 0.3);
    transition: height 0.05s ease-out;
}

/* Gold-Highlight für jeden 4. Balken */
.equalizer-rap .equalizer-bar:nth-child(4n) {
    background: linear-gradient(to top,
        #FFD700 0%,
        #FFA500 50%,
        #FF6347 100%);
    box-shadow: 0 0 12px rgba(255, 215, 0, 0.8);
}

/* ========================================
   Current Style Display
   ======================================== */

.current-style {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.current-style-name {
    color: var(--color-primary);
    font-weight: 600;
}

/* ========================================
   Interactive Hint
   ======================================== */

.interactive-hint {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    opacity: 0.8;
    animation: hint-pulse 2s ease-in-out infinite;
}

@keyframes hint-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

/* ========================================
   Buttons
   ======================================== */

.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px var(--color-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-card-border);
}

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

/* Back Button - Abstand zur Player-Bar */
#back-btn {
    margin-bottom: 70px;
}

/* ========================================
   Responsive Design - Tablet
   ======================================== */

@media (min-width: 640px) {
    :root {
        --font-size-3xl: 4rem;
        --font-size-4xl: 5rem;
    }

    .countdown-item {
        min-width: 80px;
    }

    .countdown-value {
        font-size: var(--font-size-4xl);
    }

    .style-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .equalizer-container {
        height: 150px;
    }

    .equalizer-bar {
        max-width: 12px;
    }
}

/* ========================================
   Responsive Design - Desktop
   ======================================== */

@media (min-width: 1024px) {
    :root {
        --font-size-3xl: 5rem;
        --font-size-4xl: 6rem;
    }

    .countdown-item {
        min-width: 100px;
    }

    .style-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
    }

    .style-card {
        padding: var(--spacing-xl);
    }

    .equalizer-container {
        height: 180px;
        max-width: 600px;
    }

    .equalizer-bar {
        max-width: 15px;
    }

    .new-year-text {
        font-size: var(--font-size-4xl);
    }

    .new-year-year {
        font-size: 8rem;
    }
}

/* ========================================
   Animations
   ======================================== */

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

.slide-up {
    animation: slideUp 0.6s ease forwards;
}

/* Staggered animation for cards */
.style-card:nth-child(1) { animation-delay: 0.1s; }
.style-card:nth-child(2) { animation-delay: 0.2s; }
.style-card:nth-child(3) { animation-delay: 0.3s; }
.style-card:nth-child(4) { animation-delay: 0.4s; }
.style-card:nth-child(5) { animation-delay: 0.5s; }
.style-card:nth-child(6) { animation-delay: 0.6s; }

/* ========================================
   Utility Classes
   ======================================== */

.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   Audio Player Bar
   ======================================== */

.audio-player-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    gap: var(--spacing-md);
    z-index: 100;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.audio-player-bar.hidden {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
}

.player-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.player-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-primary);
}

.player-btn svg {
    pointer-events: none;
}

.player-btn .hidden {
    display: none;
}

/* Progress Container */
.progress-container {
    flex: 1;
    position: relative;
    height: 40px;
    display: flex;
    align-items: center;
}

.progress-bar {
    position: absolute;
    left: 0;
    right: 0;
    height: 4px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--color-primary);
    border-radius: 2px;
    transition: width 0.1s linear;
}

.progress-slider {
    position: absolute;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    margin: 0;
}

.progress-slider:hover + .progress-bar,
.progress-container:hover .progress-bar {
    height: 6px;
}

/* Time Display */
.time-display {
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    white-space: nowrap;
    min-width: 90px;
    text-align: center;
}

.time-separator {
    margin: 0 2px;
    opacity: 0.6;
}

/* Volume Container */
.volume-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.volume-slider {
    width: 80px;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 2px;
    cursor: pointer;
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.volume-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    background: var(--color-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

/* Mobile: verstecke Volume */
@media (max-width: 640px) {
    .volume-container {
        display: none;
    }

    .time-display {
        min-width: 70px;
        font-size: var(--font-size-xs);
    }

    .audio-player-bar {
        height: 50px;
        padding: 0 var(--spacing-sm);
        gap: var(--spacing-sm);
    }
}