/* ============================================
   VARIABLES Y RESET - Base de estilos
   ============================================ */

:root {
    /* Colores */
    --color-bg-primary: #050912;
    --color-bg-secondary: rgba(13, 22, 40, 0.95);
    --color-bg-card: rgba(8, 15, 30, 0.92);
    --color-accent-primary: #00f5d4;
    --color-accent-secondary: #4fb0ff;
    --color-accent-soft: rgba(0, 245, 212, 0.15);
    --color-text-primary: #f8fbff;
    --color-text-secondary: #b9c7dc;
    --color-text-muted: #8fa3c6;
    --color-success: #4caf50;
    --color-warning: #ffb74d;
    --color-error: #f56352;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Tipografía */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --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;

    /* Radios */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.2);

    /* Transiciones */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: Inter, 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background: radial-gradient(circle at top, rgba(2, 10, 25, 0.95), transparent 26%),
                linear-gradient(180deg, #04070f 0%, #0f1830 52%, #070d1c 100%);
    color: var(--color-text-primary);
    line-height: 1.55;
    font-size: var(--font-size-base);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* ============================================
   TIPOGRAFÍA Y ELEMENTOS BASE
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
}

p {
    color: var(--color-text-secondary);
}

a {
    color: var(--color-accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-secondary);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    transition: all var(--transition-fast);
    min-height: 44px;
    touch-action: manipulation;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

input[type="range"] {
    cursor: pointer;
}

/* ============================================
   CONTENEDOR PRINCIPAL Y LAYOUT
   ============================================ */

#app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 100%;
}

/* ============================================
   HEADER
   ============================================ */

.header {
    background: rgba(6, 13, 27, 0.92);
    border-bottom: 1px solid rgba(79, 176, 255, 0.14);
    padding: calc(var(--spacing-sm) + 0.25rem) var(--spacing-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(18px);
}

.header-content {
    max-width: 700px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin: 0 auto;
}

.brand-group {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
}

.logo-icon {
    width: 2.4rem;
    height: 2.4rem;
    flex-shrink: 0;
}

.logo-text {
    color: #ffffff;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-size: 0.97rem;
    line-height: 1.1;
}

.logo-tagline {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.04em;
}

.live-badge {
    display: inline-block;
    background-color: var(--color-error);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* ============================================
   CONTENIDO PRINCIPAL
   ============================================ */

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg) var(--spacing-sm);
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

/* ============================================
   SECCIÓN DEL REPRODUCTOR
   ============================================ */

.player-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.player-container {
    background: linear-gradient(135deg, var(--color-bg-secondary), #1a1a1a);
    border: 1px solid rgba(0, 245, 212, 0.15);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl) var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

/* Visualizador de ondas */
.visualizer {
    position: relative;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 0.9rem;
    height: 92px;
    width: 100%;
    overflow: visible;
    padding: 0.8rem 0 0 0;
    max-height: 92px;
    background: transparent;
    border: none;
    box-shadow: none;
}

.wave {
    width: 8px;
    min-height: 20px;
    height: 20px;
    background: linear-gradient(180deg, rgba(0, 245, 212, 0.95), rgba(0, 190, 255, 0.35));
    border-radius: 999px;
    box-shadow: 0 0 18px rgba(0, 245, 212, 0.22);
    transform-origin: bottom center;
    transition: height 0.12s ease-out, opacity 0.16s ease;
}

.visualizer.paused .wave {
    opacity: 0.3;
    box-shadow: 0 0 10px rgba(0, 245, 212, 0.12);
    height: 20px;
}

/* Splash screen */
.splash-screen {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(180deg, #4b4f57 0%, #2b2f35 100%);
    z-index: 2000;
    transition: opacity 0.35s ease, visibility 0.35s ease;
}

.splash-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.splash-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.4rem;
    padding: 2rem;
    width: min(94vw, 440px);
    text-align: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1.5rem;
    backdrop-filter: blur(18px);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.22);
}

.splash-screen svg {
    width: min(78vw, 300px);
    height: auto;
    display: block;
    animation: splashReveal 0.8s ease-out both, splashFloat 5.6s ease-in-out infinite;
}

.splash-copy {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    color: #f5f8fb;
}

.splash-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    color: #d7e1ec;
    font-size: 0.76rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.splash-copy h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    line-height: 1.05;
    letter-spacing: 0.02em;
    color: #ffffff;
}

.splash-copy p {
    color: #d8dce4;
    max-width: 26rem;
    margin: 0 auto;
}

.splash-loader {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.splash-loader span {
    width: 0.85rem;
    height: 0.85rem;
    border-radius: 50%;
    background: #ffffff;
    opacity: 0.55;
    animation: splashPulse 1.2s ease-in-out infinite;
}

.splash-loader span:nth-child(2) {
    animation-delay: 0.14s;
}

.splash-loader span:nth-child(3) {
    animation-delay: 0.28s;
}

@keyframes splashReveal {
    0% { opacity: 0; transform: translateY(18px) scale(0.96); }
    100% { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes splashFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px) rotate(-0.3deg); }
}

@keyframes splashPulse {
    0%, 100% { opacity: 0.45; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.16); }
}

/* Botón de reproducción */
.play-button {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: radial-gradient(circle at top left, rgba(0, 245, 212, 0.95), rgba(79, 176, 255, 0.95));
    color: var(--color-bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    box-shadow: 0 24px 50px rgba(0, 245, 212, 0.18);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), filter var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.play-button.loading {
    cursor: progress;
}

.play-button.loading::after {
    content: '';
    position: absolute;
    width: 32px;
    height: 32px;
    border: 2px solid rgba(255, 255, 255, 0.24);
    border-top-color: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
}

.play-button.loading .play-icon,
.play-button.loading .pause-icon {
    opacity: 0.3;
}

.play-button:hover {
    transform: translateY(-2px) scale(1.04);
    box-shadow: 0 28px 60px rgba(0, 245, 212, 0.22);
    filter: saturate(1.05);
}

.play-button:focus-visible {
    outline: 2px solid rgba(79, 176, 255, 0.6);
    outline-offset: 3px;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.play-button:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 25px rgba(0, 245, 212, 0.3);
}

.play-button:active {
    transform: scale(0.95);
}

.play-icon,
.pause-icon {
    width: 35px;
    height: 35px;
}

/* Información del stream */
.stream-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    width: 100%;
    text-align: center;
    padding-bottom: var(--spacing-md);
}

.stream-info.hidden {
    display: none !important;
}

.metadata-text {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

.track-placeholder {
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.95rem;
    line-height: 1.4;
    max-width: 280px;
}

.metadata-skeleton {
    display: flex;
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
    padding: 0.25rem 0;
    margin-bottom: 0.5rem;
}

.metadata-skeleton span {
    display: block;
    width: 100%;
    height: 12px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(255,255,255,0.08), rgba(255,255,255,0.18), rgba(255,255,255,0.08));
    animation: pulse 1.4s ease-in-out infinite;
}

.metadata-skeleton span:first-child {
    width: 70%;
}

.metadata-skeleton span:last-child {
    width: 50%;
}

.stream-status-visible {
    margin-top: 0.75rem;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.88rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.metadata-text,
.metadata-artwork,
.stream-status-visible,
.track-title,
.track-artist,
.track-placeholder {
    transition: opacity 0.28s ease, transform 0.28s ease;
}

.metadata-text > * {
    opacity: 1;
    transform: translateY(0);
}

.metadata-text .hidden {
    opacity: 0;
    transform: translateY(6px);
}

@keyframes pulse {
    0%, 100% { opacity: 0.55; }
    50% { opacity: 1; }
}

.metadata-artwork {
    position: relative;
    width: 140px;
    height: 140px;
    min-width: 140px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 1rem;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: opacity 0.28s ease, transform 0.28s ease;
}

.metadata-artwork.hidden {
    display: none;
}

.artwork-skeleton {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.12));
    animation: pulse 1.4s ease-in-out infinite;
}

.track-artwork {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transition: opacity 0.35s ease;
}

.track-artwork.loaded {
    opacity: 1;
}

.metadata-text {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    align-items: center;
}

.track-title,
.track-artist,
.track-placeholder {
    width: 100%;
    max-width: min(100%, 38rem);
    margin: 0 auto;
    text-align: center;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: anywhere;
}

.track-title {
    font-size: clamp(1rem, 2.4vw, 1.35rem);
    color: var(--color-text-primary);
    font-weight: 700;
    line-height: 1.35;
    min-height: 2.5rem;
}

.track-artist {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 500;
    letter-spacing: 0.01em;
}

.stream-title,
.stream-status {
    display: none;
}

.stream-status {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.stream-status.active {
    color: var(--color-success);
}

/* Control de volumen */
.volume-control {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.volume-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

.volume-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    font-weight: 600;
}

.volume-value {
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.06);
    padding: 6px 10px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.08);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.volume-control.active .volume-value {
    opacity: 1;
    visibility: visible;
}

.volume-slider {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: linear-gradient(90deg, rgba(255,255,255,0.95) 70%, rgba(255,255,255,0.08) 70%);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05);
}

.volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-accent-primary);
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 245, 212, 0.35);
    border: 4px solid rgba(255,255,255,0.12);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.volume-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.volume-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--color-accent-primary);
    cursor: pointer;
    border: 4px solid rgba(255,255,255,0.12);
    box-shadow: 0 4px 14px rgba(0, 245, 212, 0.35);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.volume-slider::-moz-range-thumb:hover {
    transform: scale(1.1);
}

/* ============================================
   SECCIÓN WHATSAPP
   ============================================ */

.whatsapp-section {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
    padding: 0 var(--spacing-sm);
}

.whatsapp-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.9rem;
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.92), rgba(79, 176, 255, 0.92));
    color: var(--color-bg-primary);
    padding: 1rem 1.3rem;
    border-radius: 999px;
    font-weight: 700;
    box-shadow: 0 18px 40px rgba(0, 245, 212, 0.2);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), filter var(--transition-normal);
    text-decoration: none;
    min-width: 220px;
    max-width: min(100%, 340px);
}

.whatsapp-button:hover {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 18px 34px rgba(0, 245, 212, 0.26);
    filter: saturate(1.05);
}

.whatsapp-button:focus-visible {
    outline: 3px solid rgba(79, 176, 255, 0.6);
    outline-offset: 3px;
}

.whatsapp-button:active {
    transform: translateY(0);
}

.whatsapp-icon-wrapper {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
}

.whatsapp-icon {
    width: 20px;
    height: 20px;
}

.whatsapp-copy {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.whatsapp-text {
    font-size: var(--font-size-base);
    line-height: 1.1;
}

.whatsapp-caption {
    font-size: 0.75rem;
    opacity: 0.9;
    display: block;
    color: rgba(255, 255, 255, 0.92);
    margin-top: 2px;
}

.mini-player {
    position: fixed;
    left: 50%;
    bottom: 16px;
    transform: translateX(-50%) translateY(10px);
    width: min(95%, 420px);
    background: rgba(18, 18, 18, 0.96);
    border: 1px solid rgba(0, 245, 212, 0.18);
    border-radius: 16px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(18px);
    z-index: 1200;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.mini-player.hidden {
    opacity: 0 !important;
    pointer-events: none !important;
    transform: translateX(-50%) translateY(10px) !important;
}

.mini-player.visible {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

.mini-player-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: 12px 14px;
}

.mini-play-button {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    color: var(--color-bg-primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.mini-play-button:hover {
    transform: scale(1.05);
}

.mini-play-icon {
    display: inline-block;
    font-size: 1rem;
    line-height: 1;
}

.mini-player-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.mini-player-title {
    font-size: 0.95rem;
    color: var(--color-text-primary);
    font-weight: 700;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mini-player-subtitle {
    margin: 2px 0 0;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* ============================================
   SECCIÓN DE REDES SOCIALES
   ============================================ */

.social-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    align-items: center;
    text-align: center;
}

.section-title {
    font-size: var(--font-size-lg);
    text-align: center;
    color: var(--color-text-primary);
    font-weight: 600;
}

.social-section .section-title {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.78);
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
}

.social-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
    width: min(100%, 360px);
    margin: 0 auto;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background-color: var(--color-bg-secondary);
    border: 1px solid rgba(0, 245, 212, 0.1);
    border-radius: var(--radius-md);
    color: var(--color-accent-primary);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.social-links a:hover {
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.social-links a svg {
    width: 24px;
    height: 24px;
}

/* ============================================
   FOOTER MEJORADO Y PROFESIONAL
   ============================================ */

.offline-notice {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(244, 67, 54, 0.95);
    border-bottom: 2px solid var(--color-accent-primary);
    padding: var(--spacing-md);
    z-index: 1000;
    backdrop-filter: blur(10px);
    animation: slideDown 0.3s ease-in-out;
}

.install-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    color: var(--color-bg-primary);
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
}

.install-btn.hidden {
    display: none !important;
}

.install-btn {
    padding: 12px 18px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-accent-primary), var(--color-accent-secondary));
    color: var(--color-bg-primary);
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.install-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 24px rgba(0, 245, 212, 0.25);
}

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

.offline-content {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
    color: white;
    font-weight: 600;
}

.offline-icon {
    font-size: var(--font-size-xl);
}

.footer {
    background: linear-gradient(180deg, var(--color-bg-secondary), #0a0a0a);
    border-top: 2px solid rgba(0, 245, 212, 0.2);
    padding: var(--spacing-xl) var(--spacing-sm);
    color: var(--color-text-secondary);
    margin-top: auto;
}

.footer-content {
    max-width: 900px;
    margin: 0 auto var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(0, 245, 212, 0.1);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-section h3 {
    font-size: var(--font-size-lg);
    color: var(--color-accent-primary);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p {
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.footer-section a {
    color: var(--color-accent-primary);
    font-weight: 500;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-section a:hover {
    color: var(--color-accent-secondary);
    text-decoration: underline;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.footer-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(0, 245, 212, 0.1);
    border: 1px solid var(--color-accent-primary);
    border-radius: var(--radius-md);
    font-weight: 700;
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background-color: var(--color-accent-primary);
    color: var(--color-bg-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 245, 212, 0.3);
}

.footer-bottom {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
}

.footer-brand {
    color: var(--color-accent-primary) !important;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    animation: glow 2s ease-in-out infinite;
}

.footer-brand strong {
    color: var(--color-accent-secondary);
    font-weight: 700;
}

@keyframes glow {
    0%, 100% {
        text-shadow: 0 0 10px rgba(0, 245, 212, 0.3);
    }
    50% {
        text-shadow: 0 0 20px rgba(0, 245, 212, 0.6);
    }
}

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

/* ============================================
   RESPONSIVE - MOBILE FIRST
   ============================================ */

/* Mobile optimizations */
@media (max-width: 640px) {
    .main-content {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .player-container {
        padding: 1.5rem 1rem;
    }

    .stream-info {
        gap: 1.2rem;
    }

    .metadata-artwork {
        width: 120px;
        height: 120px;
        min-width: 120px;
    }

    .track-title {
        font-size: 1rem;
    }

    .track-artist {
        font-size: 0.9rem;
    }

    .whatsapp-section {
        padding: 0 1rem;
    }

    .whatsapp-button {
        width: 100%;
        justify-content: center;
        padding: 1rem 1.2rem;
        min-width: auto;
    }

    .whatsapp-icon-wrapper {
        width: 34px;
        height: 34px;
    }

    .whatsapp-text {
        font-size: 1rem;
    }
}

/* Tablet y superiores */
@media (min-width: 768px) {
    .main-content {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .player-container {
        padding: var(--spacing-xl) var(--spacing-lg);
    }

    .play-button {
        width: 84px;
        height: 84px;
    }

    .play-icon,
    .pause-icon {
        width: 42px;
        height: 42px;
    }

    .metadata-text {
        text-align: left;
        width: auto;
    }

    .social-links {
        grid-template-columns: repeat(5, 60px);
    }

    .social-links a {
        width: 60px;
        height: 60px;
    }

    .social-links a svg {
        width: 28px;
        height: 28px;
    }

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

/* Desktop */
@media (min-width: 1024px) {
    .header {
        padding: var(--spacing-lg) var(--spacing-xl);
    }

    .main-content {
        padding: var(--spacing-xl) var(--spacing-xl);
        gap: var(--spacing-xl);
    }

    .player-container {
        padding: var(--spacing-xl) var(--spacing-2xl);
    }

    #app-container {
        justify-content: space-between;
    }

    .footer-content {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-xl);
    }
}

/* ============================================
   MODO OSCURO - Sistema
   ============================================ */

@media (prefers-color-scheme: dark) {
    :root {
        --color-bg-primary: #0a0a0a;
        --color-bg-secondary: #141414;
    }
}

/* Modo reducido - Accesibilidad */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .live-badge {
        animation: none;
        opacity: 0.8;
    }
}

/* ============================================
   UTILIDADES Y EXTRAS
   ============================================ */

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

.hidden {
    display: none !important;
}

/* Animación de carga */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Efecto hover mejorado */
a:active,
button:active {
    transform: scale(0.98);
}

/* Estilos de enfoque para accesibilidad */
button:focus-visible,
a:focus-visible,
input:focus-visible {
    outline: 2px solid var(--color-accent-primary);
    outline-offset: 2px;
}

/* Animación de entrada */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Animación de bounce */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Aplicar animación de entrada a secciones */
.player-section,
.social-section,
.whatsapp-section {
    animation: slideInUp 0.6s ease-out;
}

.player-section {
    animation-delay: 0.1s;
}

.whatsapp-section {
    animation-delay: 0.2s;
}

.social-section {
    animation-delay: 0.3s;
}

/* Fallback para navegadores sin soporte de variables CSS */
body {
    background-color: #121212;
    color: #ffffff;
}

button {
    cursor: pointer;
    border: none;
    background: none;
}