:root {
    --primary-color: #7c4dff;
    --primary-hover: #651fff;
    --active-color: #00c853;
    --text-color: #333;
    --bg-color: #f5f5f7;
    --card-bg: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
    --success-color: #00c853;
    --error-color: #f44336;
    --info-color: #2196f3;
    --border-color: #eaeaea;
}

/* Dark Mode Variables */
:root.dark-theme {
    --text-color: #f5f5f7;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    --border-color: #333;
}

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

body {
    font-family: 'Inter', 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 100;
}

.theme-toggle button {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.theme-toggle button:hover {
    transform: translateY(-2px);
}

.theme-toggle .sun,
.theme-toggle .moon {
    position: absolute;
    transition: transform 0.5s ease, opacity 0.5s ease;
}

:root:not(.dark-theme) .theme-toggle .sun {
    transform: translateY(0);
    opacity: 1;
}

:root:not(.dark-theme) .theme-toggle .moon {
    transform: translateY(40px);
    opacity: 0;
}

:root.dark-theme .theme-toggle .sun {
    transform: translateY(-40px);
    opacity: 0;
}

:root.dark-theme .theme-toggle .moon {
    transform: translateY(0);
    opacity: 1;
}

.player {
    width: 100%;
    max-width: 500px;
    background-color: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    padding-bottom: 20px;
}

/* Audio Container und Equalizer */
.audio-container {
    position: relative;
    margin: 0 20px 20px;
}

#audioPlayer {
    width: 100%;
    margin-bottom: 5px;
    border-radius: 8px;
    height: 50px;
    background-color: #f0f0f0 !important; /* Audio-Player bleibt hell im Dark Mode */
}

.station-list {
    padding: 0 20px;
    max-height: 70vh;
    overflow-y: auto;
    scrollbar-width: thin;
}

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

.station-list::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.station-list button {
    display: flex;
    align-items: center;
    width: 100%;
    margin: 10px 0;
    padding: 15px 20px;
    background-color: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    text-align: left;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.station-list button::before {
    content: "🎵";
    margin-right: 12px;
    font-size: 18px;
    opacity: 0.7;
}

.station-list button:hover {
    background-color: rgba(124, 77, 255, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(124, 77, 255, 0.1);
}

.station-list button.active {
    background-color: rgba(0, 200, 83, 0.1);
    border-color: var(--active-color);
    color: var(--active-color);
}

.station-list button.active::before {
    content: "🎧";
    opacity: 1;
}

@media (max-width: 600px) {
    .player {
        border-radius: 15px;
        max-width: 100%;
    }
    
    body {
        padding: 15px;
    }
    
    .station-list button {
        padding: 12px 15px;
        font-size: 14px;
        border-radius: 10px;
    }
}

/* Header Bereich hinzufügen */
.player-header {
    padding: 20px 20px 0;
    text-align: center;
    margin-bottom: 20px;
}

.player-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 5px;
}

.player-header p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

/* Nachrichtenbenachrichtigungen */
.message-popup {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    background-color: var(--card-bg);
    color: var(--text-color);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    z-index: 1000;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    font-size: 14px;
    max-width: 90%;
    text-align: center;
}

.message-popup.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.message-popup.success {
    border-left: 4px solid var(--success-color);
}

.message-popup.error {
    border-left: 4px solid var(--error-color);
}

.message-popup.info {
    border-left: 4px solid var(--info-color);
}

/* Verbessertes Audio-Player-Styling */
#audioPlayer::-webkit-media-controls-panel {
    background-color: #f0f0f0;
}

#audioPlayer::-webkit-media-controls-play-button,
#audioPlayer::-webkit-media-controls-volume-slider {
    filter: hue-rotate(240deg);
}

/* Animierte Wellenbewegung für aktiven Sender */
.station-list button.active {
    position: relative;
    overflow: hidden;
}

.station-list button.active::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 100%;
    background: linear-gradient(90deg, transparent, var(--active-color), transparent);
    animation: wave 2s infinite ease-in-out;
}

@keyframes wave {
    0% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* Logo und Radiowellen */
.logo {
    margin: 0 auto 15px;
    width: 60px;
    height: 60px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    box-shadow: 0 4px 10px rgba(124, 77, 255, 0.3);
}

.logo::before {
    content: "📻";
    font-size: 24px;
    z-index: 2;
}

.radio-wave {
    position: absolute;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    animation: pulse 2s infinite ease-out;
}

.radio-wave:nth-child(1) {
    width: 30px;
    height: 30px;
    animation-delay: 0s;
}

.radio-wave:nth-child(2) {
    width: 45px;
    height: 45px;
    animation-delay: 0.5s;
}

.radio-wave:nth-child(3) {
    width: 60px;
    height: 60px;
    animation-delay: 1s;
}

@keyframes pulse {
    0% {
        transform: scale(0.5);
        opacity: 1;
    }
    100% {
        transform: scale(1.2);
        opacity: 0;
    }
}

.equalizer {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    height: 20px;
    margin: 0 auto;
    gap: 3px;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.equalizer.active {
    opacity: 1;
}

.equalizer .bar {
    width: 5px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: height 0.2s ease;
}

.equalizer .bar:nth-child(1) {
    animation: equalize 1s infinite alternate;
    animation-delay: 0.2s;
}

.equalizer .bar:nth-child(2) {
    animation: equalize 1.3s infinite alternate;
    animation-delay: 0.4s;
}

.equalizer .bar:nth-child(3) {
    animation: equalize 0.8s infinite alternate;
    animation-delay: 0s;
}

.equalizer .bar:nth-child(4) {
    animation: equalize 1.1s infinite alternate;
    animation-delay: 0.3s;
}

.equalizer .bar:nth-child(5) {
    animation: equalize 0.9s infinite alternate;
    animation-delay: 0.1s;
}

@keyframes equalize {
    0% {
        height: 3px;
    }
    100% {
        height: 20px;
    }
}