/* ============================================
🎾 COURT SIGHT TENNIS - SOPORTE CSS
🎨 TEMA: PRO CIRCUIT DARK (Tenis Premium Nocturno)
📦 VERSIÓN: 1.0 - Tarjetas de soporte + contacto Telegram
============================================ */

/* ============================================
🔹 VARIABLES SEMÁNTICAS PARA SOPORTE
============================================ */
:root {
    /* Tarjetas */
    --card-dev-glow: rgba(184, 212, 50, 0.15);
    --card-support-glow: rgba(34, 158, 217, 0.15);
    --card-faq-glow: rgba(100, 116, 139, 0.15);
    
    /* Botones */
    --btn-telegram: #229ED9;
    --btn-telegram-hover: #1A7BB0;
    
    /* Iconos */
    --icon-dev: var(--accent);
    --icon-support: #229ED9;
    --icon-faq: var(--text-muted);
    
    /* FAQ */
    --faq-border: var(--border);
    --faq-bg: var(--bg-secondary);
    --faq-hover: var(--accent-dim);
    
    /* Skeleton */
    --skeleton-base: rgba(51, 65, 85, 0.4);
    --skeleton-shine: rgba(184, 212, 50, 0.08);
}

/* ============================================
🔹 BASE & HEADER
============================================ */
.page-soporte {
    background: var(--bg-primary);
}

.main-soporte {
    padding: 1.5rem 1rem 2rem;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: calc(100vh - 140px);
}

@media (min-width: 1024px) {
    .main-soporte {
        padding: 2rem 2.5rem;
        margin-left: 260px;
    }
}

.header-soporte {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    padding: 0.75rem 1rem;
    min-height: 64px;
}

/* ============================================
🔹 SECCIÓN HEADER
============================================ */
.section-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin: 0 0 0.5rem 0;
}

.section-title i { color: var(--accent); font-size: 1.3rem; }

.section-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    max-width: 500px;
    line-height: 1.5;
}

/* ============================================
🔹 GRID DE TARJETAS DE SOPORTE
============================================ */
.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.support-card {
    background: linear-gradient(145deg, var(--bg-card), var(--bg-secondary));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
    display: flex;
    flex-direction: column;
}

.support-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Glow de fondo */
.card-glow {
    position: absolute;
    top: -30%;
    right: -20%;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    pointer-events: none;
    animation: glowPulse 6s ease-in-out infinite;
}

.card-dev .card-glow {
    background: radial-gradient(circle, var(--card-dev-glow) 0%, transparent 70%);
}

.card-support .card-glow {
    background: radial-gradient(circle, var(--card-support-glow) 0%, transparent 70%);
    right: auto;
    left: -20%;
    top: auto;
    bottom: -30%;
}

.card-faq .card-glow {
    background: radial-gradient(circle, var(--card-faq-glow) 0%, transparent 70%);
    top: auto;
    bottom: -30%;
    right: -20%;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

/* Contenido de la tarjeta */
.card-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Icono de tarjeta */
.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    border: 1px solid var(--border);
}

.dev-icon {
    background: rgba(184, 212, 50, 0.15);
    color: var(--icon-dev);
    border-color: var(--accent);
}

.support-icon {
    background: rgba(34, 158, 217, 0.15);
    color: var(--icon-support);
    border-color: #229ED9;
}

.faq-icon {
    background: rgba(100, 116, 139, 0.15);
    color: var(--icon-faq);
    border-color: var(--border);
}

/* Título y descripción */
.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.3;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Lista de características */
.card-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.card-features li {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.card-features i {
    color: var(--accent);
    font-size: 0.85rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

/* Botón CTA */
.btn-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    color: var(--bg-primary);
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 4px 14px var(--accent-glow);
    width: fit-content;
    margin-top: 0.5rem;
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

/* ============================================
🔹 CARD SOPORTE: OPCIONES DE CONTACTO
============================================ */
.contact-options {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.contact-btn {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all 0.2s ease;
}

.contact-btn:hover {
    border-color: var(--accent);
    background: var(--accent-dim);
    transform: translateX(4px);
}

.contact-btn.telegram {
    border-color: #229ED9;
}

.contact-btn.telegram:hover {
    background: rgba(34, 158, 217, 0.15);
    border-color: var(--btn-telegram-hover);
}

.contact-btn i {
    font-size: 1.3rem;
    width: 24px;
    text-align: center;
}

.contact-btn.telegram i {
    color: var(--btn-telegram);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
}

.contact-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-handle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.support-hint {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    padding-top: 0.5rem;
    border-top: 1px solid var(--border);
}

.support-hint i {
    color: var(--accent);
}

/* ============================================
🔹 CARD FAQ: PREGUNTAS FRECUENTES
============================================ */
.faq-item {
    border: 1px solid var(--faq-border);
    border-radius: var(--radius-md);
    background: var(--faq-bg);
    overflow: hidden;
    transition: border-color 0.2s ease;
}

.faq-item:hover {
    border-color: var(--accent);
}

.faq-item summary {
    padding: 0.85rem 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    font-size: 1.2rem;
    color: var(--accent);
    transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item summary:hover {
    background: var(--faq-hover);
}

.faq-item p {
    padding: 0 1rem 1rem;
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    border-top: 1px solid var(--faq-border);
    padding-top: 0.75rem;
}

.link-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: gap 0.2s ease;
    margin-top: 0.5rem;
}

.link-secondary:hover {
    gap: 0.6rem;
}

/* ============================================
🔹 BANNER DE CONTACTO DIRECTO
============================================ */
.contact-banner {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.banner-content {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.banner-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--btn-telegram), var(--btn-telegram-hover));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.4rem;
    flex-shrink: 0;
    box-shadow: 0 4px 16px rgba(34, 158, 217, 0.4);
}

.banner-text {
    flex: 1;
    min-width: 200px;
}

.banner-text h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 0.4rem 0;
}

.banner-text p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.banner-text strong {
    color: var(--text-primary);
    font-weight: 700;
}

.btn-telegram {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--btn-telegram);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 4px 14px rgba(34, 158, 217, 0.4);
    white-space: nowrap;
}

.btn-telegram:hover {
    background: var(--btn-telegram-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(34, 158, 217, 0.6);
}

.btn-telegram i {
    font-size: 1.1rem;
}

/* ============================================
🔹 RESPONSIVE
============================================ */
@media (max-width: 1024px) {
    .support-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-soporte { padding: 1rem 0.75rem 1.5rem; }
    .section-title { font-size: 1.3rem; }
    .section-subtitle { font-size: 0.85rem; }
    
    .support-card { padding: 1.25rem; }
    .card-title { font-size: 1.15rem; }
    
    .banner-content {
        flex-direction: column;
        text-align: center;
    }
    
    .banner-text {
        min-width: auto;
    }
    
    .btn-telegram {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section-title { font-size: 1.2rem; }
    .card-icon { width: 48px; height: 48px; font-size: 1.2rem; }
    .card-title { font-size: 1.1rem; }
    .card-desc { font-size: 0.9rem; }
    .banner-icon { width: 48px; height: 48px; font-size: 1.2rem; }
    .banner-text h4 { font-size: 1rem; }
    .banner-text p { font-size: 0.85rem; }
}

/* ============================================
🔹 UTILIDADES & ACCESIBILIDAD
============================================ */
.visually-hidden {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.hidden { display: none !important; }

.mono {
    font-family: var(--font-mono);
    font-feature-settings: "tnum" 1, "lnum" 1;
    letter-spacing: -0.02em;
}

/* Focus visible */
.btn-cta:focus-visible,
.contact-btn:focus-visible,
.btn-telegram:focus-visible,
.faq-item summary:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* ============================================
🔹 ANIMACIONES
============================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.support-card {
    animation: fadeInUp 0.3s ease-out;
    animation-fill-mode: both;
}

.support-card:nth-child(1) { animation-delay: 0.05s; }
.support-card:nth-child(2) { animation-delay: 0.1s; }
.support-card:nth-child(3) { animation-delay: 0.15s; }

/* Desactivar animaciones en móvil para rendimiento */
@media (max-width: 768px) {
    .support-card { animation: none !important; }
}