/* =============================================
   UVAPLAY - ESTILOS PRINCIPALES
   ============================================= */

/* Variables CSS */
/* Variables CSS - POR DEFECTO MODO CLARO (LIGHT) */
:root {
    /* Colores principales */
    --primary-color: #6c5ce7;
    --primary-dark: #5541d7;
    --primary-light: #a29bfe;
    --accent-color: #00cec9;
    --accent-light: #81ecec;

    /* Colores de fondo (Light) */
    --bg-primary: #f5f6fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8e9ed;
    --bg-card: rgba(255, 255, 255, 0.9);

    /* Colores de texto (Light) */
    --text-primary: #1a1a2e;
    --text-secondary: #4a4a6a;
    --text-muted: #8a8aaa;

    /* Glassmorphism (Light) */
    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(0, 0, 0, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);

    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    --gradient-dark: linear-gradient(135deg, #1a1a2e, #0f3460);

    /* Espaciado */
    --header-height: 70px;
    --player-width: 380px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Bordes */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;

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

    /* Sombras */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 30px rgba(108, 92, 231, 0.3);
}

/* Tema Oscuro (Dark) */
[data-theme="dark"] {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: rgba(26, 26, 46, 0.8);
    --text-primary: #ffffff;
    --text-secondary: #b2b2b2;
    --text-muted: #6c6c8a;
    --glass-bg: rgba(15, 15, 26, 0.85);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* Reset y estilos base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

/* =============================================
   HEADER - GLASSMORPHISM FLOTANTE
   ============================================= */
.header {
    position: fixed;
    top: 15px;
    left: 20px;
    right: calc(var(--player-width) + 10px);
    z-index: 1000;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-normal);
}

/* Header en modo oscuro */
[data-theme="dark"] .header {
    background: rgba(15, 15, 26, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.75);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

[data-theme="dark"] .header.scrolled {
    background: rgba(15, 15, 26, 0.85);
    box-shadow: var(--shadow-lg);
}

.header-container {
    max-width: 1800px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    gap: var(--spacing-md);
}

/* Logo */
.header-logo {
    flex-shrink: 0;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: transform var(--transition-fast);
}

.logo-link:hover {
    transform: scale(1.02);
}

/* Imágenes del logo */
.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

/* Logo para modo claro (letras negras) - visible por defecto */
.logo-light {
    display: block;
}

/* Logo para modo oscuro (letras blancas) - oculto por defecto */
.logo-dark {
    display: none;
}

/* Alternar logos en modo oscuro */
[data-theme="dark"] .logo-light {
    display: none;
}

[data-theme="dark"] .logo-dark {
    display: block;
}

/* Navegación */
.header-nav {
    flex: 1;
    display: flex;
    justify-content: flex-start;
    margin-left: var(--spacing-xl);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xs);
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.95rem;
    font-weight: 500;
    color: #4a4a6a;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

/* Navegación en modo oscuro */
[data-theme="dark"] .nav-link {
    color: #b2b2b2;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-item.active .nav-link,
.nav-link:hover {
    color: #1a1a2e;
}

[data-theme="dark"] .nav-item.active .nav-link,
[data-theme="dark"] .nav-link:hover {
    color: #ffffff;
}

.nav-item.active .nav-link::after,
.nav-link:hover::after {
    width: 60%;
}

/* Barra de búsqueda */
.header-search {
    flex: 0 1 350px;
}

.search-container {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: var(--spacing-sm);
    color: #6c6c8a;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-lg);
    color: #1a1a2e;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

/* Búsqueda en modo oscuro */
[data-theme="dark"] .search-input {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.search-input::placeholder {
    color: #8a8aaa;
}

.search-input:focus {
    background: rgba(255, 255, 255, 0.95);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}

[data-theme="dark"] .search-input:focus {
    background: rgba(15, 15, 26, 0.95);
}

.search-input:focus+.search-icon,
.search-container:hover .search-icon {
    color: var(--primary-color);
}

/* Acciones del header */
.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.btn-add-radio {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    background: var(--gradient-primary);
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-glow);
}

.btn-add-radio:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 92, 231, 0.4);
}

.btn-theme-toggle {
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: var(--radius-full);
    color: #4a4a6a;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

[data-theme="dark"] .btn-theme-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #b2b2b2;
}

.btn-theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: rotate(180deg);
}

/* Menú hamburguesa */
.header-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 10px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: var(--radius-sm);
}

[data-theme="dark"] .header-menu-toggle {
    background: rgba(255, 255, 255, 0.1);
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background: #1a1a2e;
    transition: all var(--transition-fast);
}

[data-theme="dark"] .hamburger-line {
    background: #ffffff;
}

@media (max-width: 992px) {
    .header {
        left: 10px !important;
        right: 10px !important;
        top: 10px !important;
        height: auto !important;
        padding: 5px 0 !important;
    }

    .header-nav {
        display: none !important;
    }

    .header-container {
        height: 60px !important;
        padding: 0 var(--spacing-sm) !important;
    }

    .header-search {
        display: block !important;
        flex: 1 !important;
        margin: 0 var(--spacing-sm) !important;
    }

    .search-input {
        padding: 0.5rem 0.8rem 0.5rem 2.2rem !important;
        font-size: 0.85rem !important;
        height: 40px !important;
        line-height: normal !important;
    }

    .search-icon {
        height: 40px !important;
        display: flex !important;
        align-items: center !important;
        top: 0 !important;
    }

    .btn-add-radio span {
        display: none !important;
    }

    .btn-add-radio {
        padding: 0.6rem !important;
    }
}

@media (max-width: 480px) {
    .header-logo {
        display: none !important;
    }

    .header-actions {
        gap: var(--spacing-xs) !important;
    }
}