/* ================================================
   CRONOGRAMA - OCEAN TWILIGHT DARK ELEGANTE
   ================================================ */

.cronograma {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
    padding: 120px 0;
}

/* Efecto de ondas marinas de fondo */
.cronograma::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at center,
        rgba(115, 191, 184, 0.06) 0%,
        rgba(95, 168, 211, 0.03) 50%,
        transparent 70%
    );
    animation: waveRotate 35s linear infinite;
    pointer-events: none;
    z-index: 1;
}

/* Efecto adicional de profundidad marina */
.cronograma::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 25% 40%, rgba(115, 191, 184, 0.04) 0%, transparent 40%),
        radial-gradient(ellipse at 75% 60%, rgba(168, 218, 220, 0.03) 0%, transparent 40%);
    pointer-events: none;
    z-index: 1;
}

/* Círculos flotantes decorativos */
.cronograma .floating-circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, 
        rgba(115, 191, 184, 0.08), 
        rgba(95, 168, 211, 0.04));
    pointer-events: none;
    z-index: 1;
    animation: floatCircle 25s ease-in-out infinite;
    border: 1px solid rgba(115, 191, 184, 0.08);
}

.cronograma .floating-circle:nth-child(1) {
    width: 200px;
    height: 200px;
    top: 10%;
    left: -100px;
    animation-duration: 28s;
}

.cronograma .floating-circle:nth-child(2) {
    width: 150px;
    height: 150px;
    bottom: 20%;
    right: -75px;
    animation-duration: 32s;
    animation-delay: 10s;
}

.cronograma .floating-circle:nth-child(3) {
    width: 120px;
    height: 120px;
    top: 50%;
    right: 8%;
    animation-duration: 30s;
    animation-delay: 5s;
}

/* Figuras geométricas decorativas */
.cronograma .geometric-shape {
    position: absolute;
    pointer-events: none;
    z-index: 1;
    opacity: 0.05;
    animation: rotateShape 45s linear infinite;
}

.cronograma .geometric-shape:nth-child(4) {
    width: 80px;
    height: 80px;
    top: 30%;
    left: 10%;
    background: linear-gradient(135deg, 
        rgba(115, 191, 184, 0.15), 
        transparent);
    transform: rotate(45deg);
}

.cronograma .geometric-shape:nth-child(5) {
    width: 100px;
    height: 100px;
    bottom: 25%;
    right: 15%;
    background: linear-gradient(135deg, 
        rgba(168, 218, 220, 0.12), 
        transparent);
    clip-path: polygon(50% 0%, 100% 100%, 0% 100%);
    animation-duration: 50s;
}

@keyframes floatCircle {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    25% {
        transform: translate(30px, -30px) scale(1.1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-20px, -50px) scale(0.95);
        opacity: 0.4;
    }
    75% {
        transform: translate(40px, -20px) scale(1.05);
        opacity: 0.45;
    }
}

@keyframes rotateShape {
    0% {
        transform: rotate(0deg) scale(1);
        opacity: 0.05;
    }
    50% {
        transform: rotate(180deg) scale(1.2);
        opacity: 0.08;
    }
    100% {
        transform: rotate(360deg) scale(1);
        opacity: 0.05;
    }
}

@keyframes waveRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.cronograma-content {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Header elegante */
.cronograma-header {
    text-align: center;
    margin-bottom: 4rem;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.2s both;
}

.cronograma-header h2 {
    font-family: var(--font-script);
    font-size: clamp(2.5rem, 5vw, 4rem);
    color: var(--accent-teal);
    font-weight: 400;
    margin-bottom: 1.5rem;
    letter-spacing: 0.02em;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Línea decorativa */
.cronograma-header .decorative-line {
    width: 120px;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--accent-teal) 20%, 
        var(--accent-aqua) 50%, 
        var(--accent-teal) 80%, 
        transparent 100%);
    margin: 24px auto;
    position: relative;
    border-radius: 1px;
    display: block;
    box-shadow: 0 0 15px rgba(115, 191, 184, 0.3);
}

.cronograma-header .decorative-line::before,
.cronograma-header .decorative-line::after {
    content: '';
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-teal);
    border-radius: 50%;
    box-shadow: 0 0 12px rgba(115, 191, 184, 0.5);
}

.cronograma-header .decorative-line::before {
    left: -12px;
}

.cronograma-header .decorative-line::after {
    right: -12px;
}

.cronograma-subtitle {
    font-family: var(--font-elegant);
    font-size: 1.125rem;
    color: var(--text-muted);
    font-weight: 300;
    letter-spacing: 0.5px;
    font-style: italic;
    margin: 0;
}

/* Timeline container */
.timeline-container {
    position: relative;
    padding: 3rem 0;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.4s both;
}

/* Línea central del timeline con gradiente marino */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        rgba(115, 191, 184, 0.2) 5%,
        var(--accent-teal) 10%,
        var(--accent-teal) 90%,
        rgba(115, 191, 184, 0.2) 95%,
        transparent 100%
    );
    transform: translateX(-50%);
    z-index: 1;
    box-shadow: 0 0 10px rgba(115, 191, 184, 0.3);
}

/* Items del timeline - CONFIGURACIÓN BASE */
.timeline-item {
    position: relative;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
    opacity: 0;
    animation: slideInTimeline 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.timeline-item:nth-child(odd) {
    animation-delay: 0.6s;
}

.timeline-item:nth-child(even) {
    animation-delay: 0.8s;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

/* ==========================================
   CONFIGURACIÓN PARA ELEMENTOS IMPARES (1, 3, 5...)
   Hora y contenido a la DERECHA
   ========================================== */

/* Elementos impares: hora en columna 3 (derecha) */
.timeline-item:nth-child(odd) .timeline-time {
    grid-column: 3;
    text-align: left;
    padding-left: 1.5rem;
    padding-right: 0;
}

/* Elementos impares: punto en el centro (columna 2) */
.timeline-item:nth-child(odd) .timeline-dot {
    grid-column: 2;
}

/* Elementos impares: contenido también en columna 3 (debajo de la hora) */
.timeline-item:nth-child(odd) .timeline-content {
    grid-column: 3;
    grid-row: 2;
    padding-left: 1.5rem;
    padding-right: 0;
}

/* Flecha apuntando a la derecha para impares */
.timeline-item:nth-child(odd) .time-card::before {
    border-right: 12px solid rgba(27, 38, 59, 0.95);
    border-left: none;
    left: -12px;
    right: auto;
    filter: drop-shadow(-2px 0 3px rgba(0, 0, 0, 0.3));
}

/* ==========================================
   CONFIGURACIÓN PARA ELEMENTOS PARES (2, 4, 6...)
   Hora y contenido a la IZQUIERDA
   ========================================== */

/* Elementos pares: hora en columna 1 (izquierda) */
.timeline-item:nth-child(even) .timeline-time {
    grid-column: 1;
    text-align: right;
    padding-right: 1.5rem;
    padding-left: 0;
}

/* Elementos pares: punto en el centro (columna 2) */
.timeline-item:nth-child(even) .timeline-dot {
    grid-column: 2;
}

/* Elementos pares: contenido también en columna 1 (debajo de la hora) */
.timeline-item:nth-child(even) .timeline-content {
    grid-column: 1;
    grid-row: 2;
    padding-right: 1.5rem;
    padding-left: 0;
}

/* Flecha apuntando a la izquierda para pares */
.timeline-item:nth-child(even) .time-card::before {
    border-left: 12px solid rgba(27, 38, 59, 0.95);
    border-right: none;
    right: -12px;
    left: auto;
    filter: drop-shadow(2px 0 3px rgba(0, 0, 0, 0.3));
}

/* Card del tiempo con estilo marino */
.time-card {
    display: inline-block;
    padding: 0.875rem 1.5rem;
    background: linear-gradient(135deg, 
        rgba(27, 38, 59, 0.95) 0%, 
        rgba(37, 54, 73, 0.9) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    transition: var(--transition-wave);
    position: relative;
    min-width: 100px;
    text-align: center;
    box-shadow: 
        0 4px 15px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(115, 191, 184, 0.1);
    backdrop-filter: blur(10px);
}

/* Flecha conectora del tiempo */
.time-card::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
    transform: translateY(-50%);
    transition: var(--transition-wave);
}

.time-card:hover {
    transform: translateY(-3px) scale(1.05);
    border-color: rgba(115, 191, 184, 0.3);
    box-shadow: 
        0 8px 25px rgba(0, 0, 0, 0.5),
        0 0 20px rgba(115, 191, 184, 0.2),
        inset 0 1px 0 rgba(115, 191, 184, 0.2);
}

.time-text {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--accent-aqua);
    font-weight: 600;
    letter-spacing: 0.5px;
    white-space: nowrap;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Punto central del timeline */
.timeline-dot {
    position: relative;
    z-index: 2;
    width: 20px;
    height: 20px;
    background: var(--bg-secondary);
    border: 3px solid var(--accent-teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-wave);
    flex-shrink: 0;
    box-shadow: 
        0 0 15px rgba(115, 191, 184, 0.4),
        inset 0 1px 3px rgba(0, 0, 0, 0.3);
    grid-row: 1 / 3; /* Ocupa ambas filas */
    align-self: start;
    margin-top: 1rem;
}

.dot-inner {
    width: 6px;
    height: 6px;
    background: var(--accent-aqua);
    border-radius: 50%;
    transition: var(--transition-wave);
    box-shadow: 0 0 8px rgba(168, 218, 220, 0.6);
}

.timeline-item:hover .timeline-dot {
    border-color: var(--accent-sand);
    transform: scale(1.3);
    box-shadow: 
        0 0 25px rgba(115, 191, 184, 0.6),
        inset 0 1px 3px rgba(0, 0, 0, 0.4);
}

.timeline-item:hover .dot-inner {
    background: var(--accent-sand);
    transform: scale(1.3);
    box-shadow: 0 0 12px rgba(241, 212, 175, 0.8);
}

/* Card del contenido con efecto de cristal */
.content-card {
    background: linear-gradient(135deg, 
        rgba(27, 38, 59, 0.95) 0%, 
        rgba(37, 54, 73, 0.9) 100%);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition-wave);
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 8px 30px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(115, 191, 184, 0.1);
    backdrop-filter: blur(15px);
}

/* Borde superior animado */
.content-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        var(--accent-teal), 
        var(--accent-aqua), 
        var(--accent-sand));
    transform: scaleX(0);
    transition: var(--transition-wave);
    transform-origin: left;
    box-shadow: 0 0 10px rgba(115, 191, 184, 0.5);
}

/* Efecto de brillo en el fondo */
.content-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top right, 
        rgba(115, 191, 184, 0.08) 0%, 
        transparent 60%);
    opacity: 0;
    transition: var(--transition-wave);
    pointer-events: none;
}

.timeline-item:hover .content-card {
    transform: translateY(-5px);
    box-shadow: 
        0 15px 45px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(115, 191, 184, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border-color: rgba(115, 191, 184, 0.3);
}

.timeline-item:hover .content-card::before {
    transform: scaleX(1);
}

.timeline-item:hover .content-card::after {
    opacity: 1;
}

/* Título del evento */
.event-title {
    font-family: var(--font-elegant);
    font-size: 1.5rem;
    color: var(--accent-aqua);
    font-weight: 400;
    margin-bottom: 1rem;
    letter-spacing: 0.5px;
    line-height: 1.3;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
    transition: var(--transition-wave);
}

.timeline-item:hover .event-title {
    color: var(--accent-sand);
    transform: translateX(3px);
}

/* Descripción del evento */
.event-description {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 1.25rem;
}

/* Ubicación del evento */
.event-location {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--text-muted);
    font-weight: 300;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(115, 191, 184, 0.1);
    transition: var(--transition-wave);
}

.timeline-item:hover .event-location {
    border-top-color: rgba(115, 191, 184, 0.2);
    color: var(--accent-teal);
}

.location-icon {
    font-size: 1rem;
    opacity: 0.8;
    flex-shrink: 0;
    color: var(--accent-teal);
    filter: drop-shadow(0 0 3px rgba(115, 191, 184, 0.3));
    transition: var(--transition-wave);
}

.timeline-item:hover .location-icon {
    transform: scale(1.1);
    opacity: 1;
}

.location-text {
    font-style: italic;
    letter-spacing: 0.3px;
}

/* Animaciones */
@keyframes slideInTimeline {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================
   ESTADOS ESPECIALES
   ================================================ */

/* Evento actual destacado */
.timeline-item.current-event .timeline-dot {
    border-color: var(--accent-sand);
    background: var(--accent-sand);
    animation: currentEventPulse 2.5s infinite ease-in-out;
    box-shadow: 0 0 30px rgba(241, 212, 175, 0.6);
}

.timeline-item.current-event .dot-inner {
    background: var(--bg-secondary);
}

.timeline-item.current-event .content-card {
    border-color: rgba(241, 212, 175, 0.3);
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.5),
        0 0 30px rgba(241, 212, 175, 0.2);
}

.timeline-item.current-event .event-title {
    color: var(--accent-sand);
}

@keyframes currentEventPulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(241, 212, 175, 0.4);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0 35px rgba(241, 212, 175, 0.7);
        transform: scale(1.15);
    }
}

/* Estados de carga */
.loading .timeline-item {
    opacity: 0;
    transform: translateY(40px);
}

.loaded .timeline-item {
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-smooth);
}

/* ================================================
   RESPONSIVE DESIGN OPTIMIZADO
   ================================================ */

/* Tablet grande */
@media (max-width: 1024px) {
    .cronograma {
        padding: 100px 0;
    }
    
    .cronograma-content {
        max-width: 800px;
    }
    
    .timeline-item {
        gap: 2rem;
        margin-bottom: 3.5rem;
    }
    
    .content-card {
        padding: 1.75rem;
    }
}

/* Tablet y móvil */
@media (max-width: 768px) {
    .cronograma {
        padding: 80px 0;
    }
    
    .cronograma-header {
        margin-bottom: 3rem;
    }
    
    .cronograma-header .decorative-line {
        width: 100px;
    }
    
    .timeline-container {
        padding: 2rem 0;
    }
    
    /* Línea del timeline a la izquierda */
    .timeline-line {
        left: 35px;
        transform: none;
    }
    
    /* Layout móvil: todo vertical y del mismo lado */
    .timeline-item {
        display: flex;
        flex-direction: column;
        gap: 0;
        margin-bottom: 3rem;
        margin-left: 70px;
        position: relative;
        width: calc(100% - 70px);
    }
    
    /* REINICIAR configuración de grid para móvil */
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        display: flex;
        flex-direction: column;
        margin-left: 70px;
        width: calc(100% - 70px);
    }
    
    /* Punto del timeline - posición absoluta en móvil */
    .timeline-dot {
        position: absolute;
        left: -35px;
        top: 1rem;
        width: 16px;
        height: 16px;
        border-width: 2px;
        grid-row: unset;
        margin-top: 0;
    }
    
    .dot-inner {
        width: 4px;
        height: 4px;
    }
    
    /* Tiempo - siempre arriba en móvil */
    .timeline-time {
        order: 1;
        text-align: left;
        padding: 0 !important;
        margin-bottom: 1rem;
        width: 100%;
        grid-column: unset;
    }
    
    .timeline-item:nth-child(odd) .timeline-time,
    .timeline-item:nth-child(even) .timeline-time {
        order: 1;
        text-align: left;
        padding: 0;
        width: 100%;
    }
    
    /* Contenido - siempre abajo en móvil */
    .timeline-content {
        order: 2;
        padding: 0 !important;
        width: 100%;
        grid-column: unset;
        grid-row: unset;
    }
    
    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        order: 2;
        padding: 0;
        width: 100%;
    }
    
    /* Time card sin flecha en móvil */
    .time-card {
        padding: 0.625rem 1.25rem;
        min-width: 90px;
        font-size: 0.9rem;
        display: inline-block;
        width: auto;
    }
    
    .time-card::before {
        display: none !important;
    }
    
    .timeline-item:nth-child(odd) .time-card::before,
    .timeline-item:nth-child(even) .time-card::before {
        display: none;
    }
    
    .time-text {
        font-size: 0.9rem;
    }
    
    /* Content card ajustado */
    .content-card {
        padding: 1.5rem;
        min-height: 200px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        width: 100%;
        box-sizing: border-box;
    }
    
    .event-title {
        font-size: 1.25rem;
        margin-bottom: 0.75rem;
        flex-shrink: 0;
        width: 100%;
    }
    
    .event-description {
        font-size: 0.95rem;
        margin-bottom: 1rem;
        flex: 1;
        width: 100%;
    }
    
    .event-location {
        font-size: 0.9rem;
        flex-shrink: 0;
        margin-top: auto;
        width: 100%;
    }
    
    /* Ocultar elementos decorativos */
    .cronograma .floating-circle:nth-child(3),
    .cronograma .geometric-shape:nth-child(5) {
        display: none;
    }
}

/* Móvil */
@media (max-width: 480px) {
    .cronograma {
        padding: 60px 0;
    }
    
    .cronograma-content {
        padding: 0 0.5rem;
    }
    
    .cronograma-header .decorative-line {
        width: 80px;
    }
    
    .cronograma-header .decorative-line::before,
    .cronograma-header .decorative-line::after {
        width: 6px;
        height: 6px;
    }
    
    .cronograma-header .decorative-line::before {
        left: -10px;
    }
    
    .cronograma-header .decorative-line::after {
        right: -10px;
    }
    
    .timeline-line {
        left: 22px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        margin-left: 50px;
        margin-bottom: 2.5rem;
        width: calc(100% - 50px);
    }
    
    .timeline-dot {
        left: -28px;
        top: 0.75rem;
        width: 14px;
        height: 14px;
    }
    
    .dot-inner {
        width: 3px;
        height: 3px;
    }
    
    .time-card {
        padding: 0.5rem 1rem;
        min-width: 80px;
    }
    
    .time-text {
        font-size: 0.85rem;
    }
    
    .content-card {
        padding: 1.25rem;
        min-height: 180px;
    }
    
    .event-title {
        font-size: 1.125rem;
        line-height: 1.4;
    }
    
    .event-description {
        font-size: 0.9rem;
    }
    
    .event-location {
        font-size: 0.85rem;
    }
    
    .location-icon {
        font-size: 0.85rem;
    }
    
    /* Ocultar todos los elementos decorativos */
    .cronograma .floating-circle,
    .cronograma .geometric-shape {
        display: none;
    }
}

/* Móvil muy pequeño */
@media (max-width: 320px) {
    .timeline-item,
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        margin-left: 40px;
        width: calc(100% - 40px);
    }
    
    .timeline-line {
        left: 18px;
        width: 2px;
    }
    
    .timeline-dot {
        left: -22px;
        width: 12px;
        height: 12px;
        border-width: 2px;
    }
    
    .dot-inner {
        width: 2px;
        height: 2px;
    }
    
    .time-card {
        padding: 0.4rem 0.8rem;
        min-width: 70px;
    }
    
    .time-text {
        font-size: 0.8rem;
    }
    
    .content-card {
        padding: 1rem;
        min-height: 160px;
    }
    
    .event-title {
        font-size: 1rem;
    }
    
    .event-description {
        font-size: 0.85rem;
    }
    
    .cronograma-header .decorative-line {
        width: 70px;
    }
}

/* ================================================
   ACCESIBILIDAD Y PREFERENCIAS
   ================================================ */

@media (prefers-reduced-motion: reduce) {
    .cronograma::before,
    .cronograma .floating-circle,
    .cronograma .geometric-shape,
    .timeline-item,
    .timeline-dot,
    .time-card,
    .content-card,
    .event-title,
    .timeline-item.current-event .timeline-dot {
        animation: none;
        transition: none;
    }
    
    .timeline-item:hover .timeline-dot,
    .timeline-item:hover .content-card,
    .time-card:hover {
        transform: none;
    }
}

/* Pantallas extra grandes */
@media (min-width: 1200px) {
    .cronograma-content {
        max-width: 1000px;
    }
    
    .timeline-item {
        gap: 3.5rem;
        margin-bottom: 4.5rem;
    }
    
    .content-card {
        padding: 2.25rem;
    }
    
    .event-title {
        font-size: 1.65rem;
    }
}