/* ============================================================
   CIUDAD URBANA RADIO — identidad-urbana.css
   Identidad: Dark Urban · Violeta
   Paleta: Negro #0a0a0a · Persian Violet #6323ac · Light Violet #b57fff
   Tipografía: Bebas Neue (títulos) · DM Sans (texto)

   USO: este archivo es independiente de style.css y no lo
   modifica ni lo reemplaza. Se agrega como <link> adicional en
   las páginas donde se quiera aplicar esta identidad oscura.
   Todas las clases usan el prefijo "cu-" para evitar choques
   con clases existentes de Materialize o de style.css.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:ital,wght@0,300;0,400;0,600;1,300&display=swap');

/* ===== TOKENS ===== */
:root {
    --cu-dark:         #0a0a0a;
    --cu-purple:       #6323ac;
    --cu-purple-light: #b57fff;
    --cu-white:        #ffffff;

    --cu-text:      rgba(255, 255, 255, 0.85);
    --cu-text-dim:  rgba(255, 255, 255, 0.6);
    --cu-text-mute: rgba(255, 255, 255, 0.4);

    --cu-border:       rgba(255, 255, 255, 0.07);
    --cu-border-hover: rgba(255, 255, 255, 0.15);

    --cu-glow-sm: 0 0 14px rgba(99, 35, 172, 0.4);
    --cu-glow-md: 0 0 32px rgba(99, 35, 172, 0.3);

    --cu-font-display: 'Bebas Neue', sans-serif;
    --cu-font-text:    'DM Sans', sans-serif;

    --cu-radius-sm: 2px;
    --cu-radius-md: 4px;
    --cu-transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== ANIMACIONES ===== */
@keyframes cu-fadeUp {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes cu-expandLine {
    from { width: 0; }
    to   { width: 180px; }
}

@keyframes cu-pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: 0.4; transform: scale(0.7); }
}

/* Clases utilitarias de entrada (opcionales, para usar en cualquier elemento) */
.cu-anim-fadeUp { opacity: 0; animation: cu-fadeUp 0.7s ease forwards; }
.cu-delay-1 { animation-delay: 0.1s; }
.cu-delay-2 { animation-delay: 0.25s; }
.cu-delay-3 { animation-delay: 0.6s; }
.cu-delay-4 { animation-delay: 0.75s; }
.cu-delay-5 { animation-delay: 1.1s; }
.cu-delay-6 { animation-delay: 1.3s; }

/* ===== SECCIÓN BASE (contenedor oscuro de página completa) ===== */
.cu-section {
    position: relative;
    background: var(--cu-dark);
    padding: 80px 0 100px;
    overflow: hidden;
}

.cu-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 50% at 10% 20%, rgba(99, 35, 172, 0.18) 0%, transparent 70%),
        radial-gradient(ellipse 40% 60% at 90% 80%, rgba(99, 35, 172, 0.10) 0%, transparent 70%);
    pointer-events: none;
}

/* Textura de ruido sutil, opcional */
.cu-noise {
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none;
    opacity: 0.4;
}

.cu-inner {
    position: relative;
    max-width: 860px;
    margin: 0 auto;
    padding: 0 24px;
}

.cu-inner-wide {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== TAG (etiqueta pequeña, ej: "NOSOTROS", "RADIO EN VIVO") ===== */
.cu-tag {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--cu-font-text);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--cu-purple-light);
    margin-bottom: 24px;
}

.cu-tag::before {
    content: '';
    display: block;
    width: 28px;
    height: 1px;
    background: var(--cu-purple-light);
}

/* ===== TÍTULO PRINCIPAL ===== */
.cu-titulo {
    font-family: var(--cu-font-display);
    font-size: clamp(48px, 9vw, 100px);
    line-height: 0.92;
    color: var(--cu-white);
    margin: 0 0 12px;
    letter-spacing: 0.01em;
}

.cu-titulo span {
    color: var(--cu-purple);
    display: block;
}

.cu-subtitulo {
    font-family: var(--cu-font-text);
    font-size: 13px;
    font-weight: 300;
    letter-spacing: 0.1em;
    color: var(--cu-text-mute);
    text-transform: uppercase;
}

/* ===== LÍNEA DIVISORA ===== */
.cu-divider {
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--cu-purple), var(--cu-purple-light), transparent);
    margin: 32px 0 40px;
    animation: cu-expandLine 1s ease forwards 0.6s;
}

.cu-divider-static {
    width: 120px;
    height: 3px;
    background: linear-gradient(90deg, var(--cu-purple), var(--cu-purple-light), transparent);
    margin: 20px 0 0;
}

/* ===== TEXTO DE CUERPO ===== */
.cu-text {
    font-family: var(--cu-font-text);
    font-size: 14.5px;
    font-weight: 300;
    line-height: 1.8;
    color: var(--cu-text-dim);
}

.cu-text-lg {
    font-family: var(--cu-font-text);
    font-size: 16px;
    font-weight: 300;
    line-height: 1.75;
    color: var(--cu-text);
}

/* ===== BLOQUES / TARJETAS DE CONTENIDO ===== */
.cu-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--cu-border);
    border-left: 3px solid var(--cu-purple);
    padding: 24px 20px;
    border-radius: var(--cu-radius-sm);
    transition: background var(--cu-transition), border-color var(--cu-transition);
}

.cu-card:hover {
    background: rgba(99, 35, 172, 0.08);
    border-left-color: var(--cu-purple-light);
}

.cu-card-top {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--cu-border);
    border-top: 3px solid var(--cu-purple);
    border-radius: var(--cu-radius-md);
    padding: 32px 28px;
    transition: transform var(--cu-transition), border-color var(--cu-transition);
}

.cu-card-top:hover {
    transform: translateY(-4px);
    border-top-color: var(--cu-purple-light);
}

.cu-card-icono {
    font-size: 22px;
    margin-bottom: 12px;
    opacity: 0.7;
}

/* Grilla de bloques (2 columnas, ej: para "nosotros") */
.cu-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

@media (max-width: 640px) {
    .cu-grid-2 { grid-template-columns: 1fr; }
}

/* Grilla flexible para cards tipo beneficios/programas */
.cu-grid-auto {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
}

/* ===== CITA / FRASE DESTACADA ===== */
.cu-quote {
    margin-top: 40px;
    padding: 28px 32px;
    background: rgba(99, 35, 172, 0.12);
    border: 1px solid rgba(99, 35, 172, 0.3);
    border-radius: var(--cu-radius-md);
    position: relative;
}

.cu-quote::before {
    content: '\201C';
    font-family: var(--cu-font-display);
    font-size: 72px;
    color: var(--cu-purple);
    position: absolute;
    top: -10px;
    left: 20px;
    line-height: 1;
    opacity: 0.6;
}

.cu-quote p {
    font-family: var(--cu-font-text);
    font-size: 16px;
    font-style: italic;
    font-weight: 300;
    color: var(--cu-text);
    line-height: 1.7;
    margin: 0;
    padding-left: 16px;
}

/* ===== DATO DESTACADO (ej: número de frecuencia FM) ===== */
.cu-destacado {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cu-destacado-numero {
    font-family: var(--cu-font-display);
    font-size: 52px;
    color: var(--cu-purple);
    line-height: 1;
}

.cu-destacado-texto {
    font-family: var(--cu-font-text);
    font-size: 12px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--cu-text-mute);
    line-height: 1.5;
}

.cu-destacado-sep {
    width: 1px;
    height: 48px;
    background: rgba(255, 255, 255, 0.15);
}

/* ===== BOTONES ===== */
.cu-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--cu-font-text);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 14px 28px;
    border-radius: var(--cu-radius-sm);
    border: none;
    cursor: pointer;
    background: var(--cu-purple);
    color: var(--cu-white);
    transition: background var(--cu-transition), transform var(--cu-transition);
}

.cu-btn:hover {
    background: var(--cu-purple-light);
    transform: translateY(-1px);
}

.cu-btn-outline {
    background: transparent;
    border: 1px solid var(--cu-purple);
    color: var(--cu-purple-light);
}

.cu-btn-outline:hover {
    background: rgba(99, 35, 172, 0.12);
    border-color: var(--cu-purple-light);
}

.cu-btn-circle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: none;
    background: var(--cu-purple);
    color: var(--cu-white);
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--cu-transition), transform var(--cu-transition);
}

.cu-btn-circle:hover { background: var(--cu-purple-light); transform: scale(1.06); }
.cu-btn-circle:active { transform: scale(0.96); }

/* ===== INDICADOR "EN VIVO" / ESTADO ===== */
.cu-live-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-family: var(--cu-font-text);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--cu-text-dim);
}

.cu-live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--cu-purple);
    animation: cu-pulseDot 1.4s ease-in-out infinite;
}

.cu-live-dot.cu-playing { background: #4caf50; }

/* ===== ENCABEZADO DE PÁGINA (genérico, reusable en cualquier sección) ===== */
.cu-page-header {
    position: relative;
    background: var(--cu-dark);
    padding: 56px 0 48px;
    overflow: hidden;
}

.cu-page-header::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 70% 80% at 5% 30%, rgba(99, 35, 172, 0.16) 0%, transparent 65%);
    pointer-events: none;
}

/* ===== ENLACES DE TEXTO ===== */
.cu-link {
    color: var(--cu-purple-light);
    text-decoration: none;
    transition: color var(--cu-transition);
}

.cu-link:hover {
    color: var(--cu-white);
    text-decoration: underline;
}

/* ===== RESPONSIVE GENERAL ===== */
@media (max-width: 640px) {
    .cu-destacado { gap: 14px; }
    .cu-destacado-numero { font-size: 40px; }
    .cu-quote { padding: 22px 20px; }
    .cu-quote::before { font-size: 56px; left: 14px; }
}