:root {
    /* Paleta Premium - Tema Claro por Defecto */
    --insp-navy: #0B1F2A;
    --insp-navy-mid: #0D1E30;
    --insp-navy-card: #112030;
    --insp-orange: #F97316;
    --insp-orange-hover: #EA580C;
    --insp-cyan: #38BDF8;
    --insp-white: #ffffff;
    --insp-gray-50: #f4f6f9;
    /* Fondo de página claro */
    --insp-gray-100: #f1f5f9;
    --insp-gray-200: #e2e8f0;
    --insp-gray-400: #94a3b8;
    --insp-gray-600: #475569;
    --insp-gray-800: #1e293b;

    --insp-shadow: 0 4px 12px rgba(0, 0, 0, .05);
    --insp-radius: 12px;
}

/* Modo Oscuro Opcional (solo si se activa en el sitio) */
.dark-mode .insp-single,
.dark .insp-single {
    --insp-gray-50: #0B1F2A;
    --insp-gray-100: #162635;
    --insp-gray-200: #243447;
    --insp-white: #112030;
    --insp-gray-800: #f1f5f9;
    --insp-gray-600: #94a3b8;
    --insp-shadow: 0 10px 30px rgba(0, 0, 0, .3);
}

.insp-single {
    background: var(--insp-gray-50);
    color: var(--insp-gray-800);
}

/* ===== HERO SECTION ===== */
.event-hero {
    position: relative;
    min-height: 400px;
    background: var(--insp-navy);
    overflow: hidden;
    color: #fff;
    display: flex;
    align-items: center;
}

/* ===== HERO SECTION (EDITORIAL STYLE) ===== */
.event-hero {
    position: relative;
    min-height: 440px;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    overflow: hidden;
    color: #fff;
    display: flex;
    align-items: center;
    padding: 60px 0;
}

.hero-grid-split {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

.hero-image-side {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-frame {
    position: relative;
    border-radius: 20px;
    padding: 10px;
    background: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.hero-main-img {
    width: 100%;
    max-width: 480px;
    height: auto;
    border-radius: 12px;
    display: block;
    object-fit: cover;
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 1280px;
    margin: 0 auto;
    padding: 60px 24px;
    width: 100%;
}

.hero-top-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 32px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-back-hero {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.2s;
    border: 2px dashed rgba(255, 255, 255, 0.7);
    border-radius: 8px;
    padding: 8px;
}

.btn-back-hero:hover {
    color: #fff;
    border: 2px dashed #fff;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--insp-orange);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 4px;
}

.hero-title {
    font-size: clamp(32px, 5vw, 54px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 12px;
}

.hero-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    opacity: .8;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.hero-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-ctas {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.cta-primary {
    background: var(--insp-orange);
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 700;
    text-decoration: none;
    transition: background .2s;
}

.cta-primary:hover {
    background: var(--insp-orange-hover);
}

.cta-secondary {
    background: rgba(255, 255, 255, .1);
    color: #fff;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, .2);
}

/* ===== MAIN CONTENT ===== */
.main-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 40px 24px;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 32px;
}

.section-card {
    background: var(--insp-white);
    border-radius: var(--insp-radius);
    border: 1px solid var(--insp-gray-200);
    padding: 30px;
    margin-bottom: 24px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, .04);
}

.section-title {
    font-size: 18px;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--insp-gray-800);
}

.info-row {
    display: flex;
    padding: 12px 0;
    border-bottom: 1px solid var(--insp-gray-100);
    font-size: 14px;
}

.info-row-key {
    width: 100px;
    font-weight: 700;
    color: var(--insp-gray-600);
}

.info-row-val {
    flex: 1;
    font-weight: 500;
}

.event-action-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--insp-gray-600) !important;
    text-decoration: none !important;
    background: var(--insp-white);
    border: 1px solid var(--insp-gray-200);
    padding: 6px 12px;
    border-radius: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.event-action-link i {
    color: var(--insp-orange);
}

.event-action-link:hover {
    background: var(--insp-gray-50);
    border-color: var(--insp-gray-400);
    color: var(--insp-navy) !important;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

/* Oportunidades */
.opps-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.opp-item {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--insp-gray-50);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
}

.opp-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--insp-orange);
}

/* Sidebar */
.sidebar-item {
    background: var(--insp-white);
    border: 1px solid var(--insp-gray-200);
    border-radius: var(--insp-radius);
    padding: 20px;
    margin-bottom: 24px;
}

.suggested-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.suggested-item {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: inherit;
    padding: 8px;
    border-radius: 8px;
    transition: background .2s;
}

.suggested-item:hover {
    background: var(--insp-gray-50);
}

.suggested-date {
    background: var(--insp-gray-100);
    border-radius: 6px;
    min-width: 48px;
    height: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.suggested-date .m {
    font-size: 10px;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--insp-gray-400);
    margin-bottom: 2px;
}

.suggested-date .d {
    font-size: 18px;
    font-weight: 900;
    color: var(--insp-gray-800);
}

.suggested-info {
    flex: 1;
    overflow: hidden;
}

.suggested-title {
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 2px;
}

.suggested-meta {
    font-size: 12px;
    color: var(--insp-gray-400);
}

.sidebar-label {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--insp-orange);
    margin-bottom: 12px;
    letter-spacing: .05em;
}

/* --- RELATED VIDEOS --- */
.related-videos-section {
    margin-top: 40px;
}

.video-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.video-card {
    background: var(--insp-white);
    border-radius: var(--insp-radius);
    border: 1px solid var(--insp-gray-200);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    transition: transform .2s;
}

.video-card:hover {
    transform: translateY(-5px);
}

.video-card-thumb {
    aspect-ratio: 16/9;
    background: #000;
}

.video-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-card-title {
    padding: 15px;
    font-size: 15px;
    font-weight: 700;
}

/* Utility Classes (Migrated from Inline) */
.info-grid-2col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.info-icon {
    width: 16px !important;
    height: 16px !important;
    color: var(--insp-gray-400);
    margin-right: 8px;
    flex-shrink: 0;
}

.attend-list {
    list-style: none;
    font-size: 14px;
    display: grid;
    gap: 10px;
    padding: 0;
    margin: 0;
}

.attend-item {
    display: flex;
    align-items: center;
    padding: 12px 0;
}

.attend-icon {
    width: 16px !important;
    height: 16px !important;
    color: var(--insp-cyan);
    flex-shrink: 0;
}

.opp-icon {
    width: 14px !important;
    height: 14px !important;
    color: var(--insp-orange);
    margin-right: 8px;
    flex-shrink: 0;
}

.partner-logo-box {
    background: var(--insp-gray-50);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 15px;
}

.partner-logo {
    height: 30px;
    width: auto;
    filter: invert(1);
}

.partner-text {
    font-size: 13px;
    color: var(--insp-gray-600);
    line-height: 1.5;
    margin-bottom: 15px;
}

.btn-back-sidebar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--insp-gray-800);
    text-decoration: none;
}

.hero-cta-icon {
    width: 16px !important;
    height: 16px !important;
}

/* ===== MICRO-INTERACTIONS (Phase 1 — Score 10/10) ===== */
.section-card {
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.section-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.cta-primary {
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
}

.cta-primary:hover {
    background: var(--insp-orange-hover);
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
}

.cta-secondary {
    transition: background 0.2s ease, border-color 0.2s ease;
    cursor: pointer;
}

.cta-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: #38BDF8;
}

.btn-back-hero {
    transition: color 0.2s ease, border-color 0.2s ease;
}

.suggested-item {
    transition: background 0.2s ease;
    cursor: pointer;
}

.opp-item {
    transition: background 0.2s ease, transform 0.2s ease;
}

.opp-item:hover {
    background: var(--insp-gray-100);
    transform: translateX(4px);
}

.attend-item {
    transition: color 0.2s ease;
}

.attend-item:hover {
    color: var(--insp-navy);
}

.video-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    cursor: pointer;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.sidebar-item {
    transition: box-shadow 0.2s ease;
}

.sidebar-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

/* ===== MOBILE RESPONSIVE (Phase 2 — Score 10/10) ===== */
@media (max-width: 980px) {
    .event-hero {
        padding: 40px 0;
        min-height: auto;
    }

    .hero-inner {
        padding: 40px 16px;
    }

    .hero-grid-split {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-top-row {
        align-items: center;
    }

    .hero-image-side {
        order: -1;
    }

    .hero-image-frame {
        max-width: 320px;
        margin: 0 auto;
    }

    .hero-meta {
        justify-content: center;
    }

    .hero-ctas {
        justify-content: center;
        flex-direction: column;
    }

    .cta-primary,
    .cta-secondary {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .content-right {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: clamp(26px, 6vw, 36px);
    }

    .main-container {
        padding: 24px 16px;
    }

    .section-card {
        padding: 20px;
    }

    .info-grid-2col {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .opps-grid {
        grid-template-columns: 1fr;
    }

    .video-cards-grid {
        grid-template-columns: 1fr;
    }

    .info-row {
        flex-direction: column;
        gap: 4px;
    }

    .info-row-key {
        width: auto;
    }

    .section-title {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 24px;
    }

    .hero-inner {
        padding: 32px 12px;
    }

    .hero-meta {
        flex-direction: column;
        gap: 8px;
        font-size: 13px;
    }

    .main-container {
        padding: 16px 12px;
    }

    .section-card {
        padding: 16px;
        margin-bottom: 16px;
    }

    .btn-back-hero {
        font-size: 12px;
        padding: 6px;
    }

    .attend-item {
        font-size: 13px;
    }

    .opp-item {
        font-size: 13px;
    }
}