.detail-header {
            padding: 140px 0 60px 0;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .detail-header::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(90deg, rgba(10,37,64,0.95) 0%, rgba(10,37,64,0.85) 40%, rgba(10,37,64,0.2) 100%);
        }
        .detail-header * { position: relative; z-index: 2; }

        .detail-icon-lg {
            width: 90px; height: 90px;
            border-radius: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .detail-title {
            color: #fff;
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 900;
            margin-bottom: 15px;
            text-align: left;
        }
        .detail-short-desc {
            color: rgba(255,255,255,0.85);
            font-size: 1.15rem;
            max-width: 650px;
            margin: 0 0 25px 0;
            line-height: 1.7;
            text-align: left;
        }
        .detail-tags {
            display: flex;
            gap: 12px;
            justify-content: flex-start;
            flex-wrap: wrap;
        }
        .detail-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 50px;
            background: rgba(255,255,255,0.12);
            color: #fff;
            font-size: 0.9rem;
            font-weight: 500;
            backdrop-filter: blur(4px);
        }
        .detail-tag i { color: #00B4D8; }

        /* ===== SCHEDULE BAND ===== */
        .schedule-band {
            background: #0A2540;
            padding: 30px 0;
            position: relative;
            overflow: hidden;
        }
        .schedule-band::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: radial-gradient(circle at 30% 50%, rgba(0,180,216,0.08) 0%, transparent 50%),
                        radial-gradient(circle at 70% 50%, rgba(242,169,0,0.05) 0%, transparent 50%);
            pointer-events: none;
        }
        .schedule-band * { position: relative; z-index: 2; }
        .schedule-band-title {
            color: #fff;
            font-family: 'Montserrat', sans-serif;
            font-weight: 800;
            font-size: 1rem;
            text-transform: uppercase;
            letter-spacing: 1.5px;
            text-align: center;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        .schedule-band-title i { color: #00B4D8; }
        .schedule-cols {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 25px;
        }
        @media (max-width: 768px) {
            .schedule-cols { grid-template-columns: 1fr; }
        }
        .schedule-block-label {
            font-weight: 700;
            color: rgba(255,255,255,0.5);
            text-transform: uppercase;
            letter-spacing: 1px;
            font-size: 0.75rem;
            margin-bottom: 12px;
            text-align: center;
        }
        .schedule-slots {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 10px;
        }
        @media (max-width: 576px) {
            .schedule-slots { grid-template-columns: 1fr; }
        }
        .schedule-slot {
            background: rgba(255,255,255,0.06);
            border: 1px solid rgba(255,255,255,0.08);
            border-radius: 10px;
            padding: 14px 10px;
            text-align: center;
            transition: all 0.3s;
        }
        .schedule-slot:hover {
            background: rgba(0,180,216,0.1);
            border-color: rgba(0,180,216,0.25);
            transform: translateY(-2px);
        }
        .slot-period {
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 6px;
        }
        .slot-period.morning { color: #00B4D8; }
        .slot-period.afternoon { color: #10B981; }
        .slot-period.night { color: #7C3AED; }
        .slot-period.weekend { color: #F2A900; }
        .slot-time {
            color: #fff;
            font-weight: 600;
            font-size: 0.88rem;
        }
        .schedule-weekend-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 10px;
        }
        @media (max-width: 576px) {
            .schedule-weekend-grid { grid-template-columns: 1fr; }
        }
        .weekend-slot {
            background: rgba(242,169,0,0.08);
            border: 1px solid rgba(242,169,0,0.12);
            border-radius: 10px;
            padding: 14px 12px;
            transition: all 0.3s;
        }
        .weekend-slot:hover {
            background: rgba(242,169,0,0.14);
            border-color: rgba(242,169,0,0.3);
            transform: translateY(-2px);
        }
        .weekend-slot-day {
            font-size: 0.7rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 1px;
            color: #F2A900;
            margin-bottom: 8px;
        }
        .weekend-slot-time {
            color: #fff;
            font-weight: 600;
            font-size: 0.85rem;
            display: flex;
            flex-direction: column;
            gap: 3px;
        }
        .weekend-slot-time span { display: flex; align-items: center; gap: 6px; }
        .weekend-slot-time i { color: #F2A900; font-size: 0.75rem; }

        /* Content */
        .detail-body {
            padding: 60px 0 40px 0;
            background: #F7F8FA;
        }
        .detail-card {
            background: #fff;
            border-radius: 20px;
            padding: 35px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            margin-bottom: 25px;
            border: 1px solid #f0f0f0;
        }
        .detail-card h3 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 1.3rem;
            color: #0A2540;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .detail-card h3 i {
            width: 36px; height: 36px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 0.95rem;
        }

        .about-text {
            font-size: 1.05rem;
            line-height: 1.8;
            color: #4a5568;
        }

        /* Info grid */
        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 15px;
        }
        .info-item {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 15px;
            background: #F7F8FA;
            border-radius: 12px;
        }
        .info-item i {
            min-width: 20px;
            margin-top: 2px;
        }
        .info-item .info-label {
            display: block;
            font-size: 0.8rem;
            color: #94a3b8;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        .info-item .info-value {
            font-weight: 600;
            color: #0A2540;
            font-size: 0.95rem;
        }

        /* Requirements Grid */
        .req-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
        }
        .req-card {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 15px;
            background: #fff;
            border-radius: 12px;
            border: 1px solid #e2e8f0;
            color: #4a5568;
            font-size: 0.92rem;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.02);
        }
        .req-card:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 15px rgba(0,0,0,0.06);
            border-color: #00B4D8;
        }
        .req-card i { color: #00B4D8; margin-top: 2px; font-size: 1.1rem; }

        /* Syllabus Timeline */
        .syllabus-timeline {
            position: relative;
            padding-left: 25px;
        }
        .syllabus-timeline::before {
            content: '';
            position: absolute;
            top: 20px; left: 8px; bottom: 30px;
            width: 2px;
            background: #e2e8f0;
            border-radius: 2px;
        }
        .module-card {
            background: #F7F8FA;
            border-radius: 14px;
            margin-bottom: 15px;
            overflow: hidden;
            transition: all 0.3s;
            position: relative;
            border: 1px solid transparent;
        }
        .module-card::before {
            content: '';
            position: absolute;
            left: -25px; top: 22px;
            width: 16px; height: 16px;
            border-radius: 50%;
            background: #fff;
            border: 3px solid #cbd5e1;
            transition: all 0.3s;
            z-index: 2;
        }
        .module-card:hover { background: #EEF2F7; }
        .module-card.open { border-color: rgba(0,180,216,0.3); }
        .module-card.open::before { border-color: #00B4D8; background: #E0F2FE; }
        
        .module-header {
            padding: 18px 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            color: #0A2540;
            font-family: 'Montserrat', sans-serif;
            font-size: 0.95rem;
        }
        .module-header i {
            transition: transform 0.3s;
            color: #00B4D8;
        }
        .module-card.open .module-header i {
            transform: rotate(180deg);
        }
        .module-body {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            padding: 0 20px;
        }
        .module-card.open .module-body {
            max-height: 400px;
            padding: 0 20px 18px 20px;
        }
        .module-topic {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            padding: 6px 0;
            color: #4a5568;
            font-size: 0.92rem;
        }
        .module-topic i { color: #10B981; margin-top: 3px; font-size: 0.8rem; }

        /* Benefits 3D Cards */
        .benefits-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 20px;
        }
        .benefit-card {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 20px 15px;
            background: #fff;
            border-radius: 14px;
            color: #0A2540;
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: 0 4px 15px rgba(0,0,0,0.03);
            border: 1px solid #f0f0f0;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
        }
        .benefit-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 25px rgba(16, 185, 129, 0.12);
            border-color: rgba(16, 185, 129, 0.2);
        }
        .benefit-card i {
            color: #10B981;
            font-size: 1.4rem;
            min-width: 25px;
            text-align: center;
            transition: transform 0.3s;
        }
        .benefit-card:hover i {
            transform: scale(1.15);
        }

        /* CTA */
        .detail-cta-section {
            background: #0A2540;
            padding: 60px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .detail-cta-section::before {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: radial-gradient(circle at 50% 50%, rgba(0,180,216,0.1), transparent 60%);
        }
        .detail-cta-section * { position: relative; z-index: 2; }
        .detail-cta-section h2 { color: #fff; margin-bottom: 10px; }
        .detail-cta-section p { color: rgba(255,255,255,0.7); margin-bottom: 25px; max-width: 500px; margin-left: auto; margin-right: auto; }

        .btn-inscribirse {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 40px;
            background: #25D366;
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            text-decoration: none;
            font-size: 1.05rem;
            transition: all 0.3s;
            box-shadow: 0 4px 15px rgba(37,211,102,0.3);
        }
        .btn-inscribirse:hover {
            background: #128C7E;
            color: #fff;
            transform: translateY(-3px);
        }

        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: transparent;
            color: rgba(255,255,255,0.7);
            border: 1px solid rgba(255,255,255,0.2);
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s;
            margin-right: 15px;
        }
        .btn-back:hover {
            color: #fff;
            border-color: #fff;
        }

        /* Not found */
        .not-found {
            text-align: center;
            padding: 100px 20px;
        }
        .not-found i { font-size: 4rem; color: #cbd5e1; margin-bottom: 20px; }
        .not-found h2 { color: #0A2540; }
        .not-found p { color: #64748b; }

        /* Sticky CTA Bar */
        .sticky-cta {
            position: fixed;
            bottom: -80px;
            left: 0; right: 0;
            background: rgba(10, 37, 64, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            padding: 14px 0;
            z-index: 990;
            transition: bottom 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            box-shadow: 0 -4px 30px rgba(0,0,0,0.15);
        }
        .sticky-cta.visible {
            bottom: 0;
        }
        .sticky-cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 15px;
        }
        .sticky-cta-info {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #fff;
            min-width: 0;
        }
        .sticky-cta-info .cta-course-name {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 0.95rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .sticky-cta-info .cta-price {
            color: #00B4D8;
            font-size: 0.85rem;
            font-weight: 600;
        }
        .sticky-cta .btn-sticky-wa {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            background: #25D366;
            color: #fff;
            border-radius: 50px;
            font-weight: 700;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.3s;
            white-space: nowrap;
            flex-shrink: 0;
        }
        .sticky-cta .btn-sticky-wa:hover {
            background: #128C7E;
            color: #fff;
            transform: translateY(-2px);
        }
        @media (max-width: 576px) {
            .sticky-cta-info .cta-course-name { display: none; }
            .sticky-cta .btn-sticky-wa {
                width: 100%;
                justify-content: center;
                padding: 14px;
            }
            .sticky-cta-inner { justify-content: center; }
        }

        /* Related Courses */
        .related-section {
            padding: 70px 0;
            background: #F7F8FA;
        }
        .related-section h2 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            color: #0A2540;
            margin-bottom: 10px;
        }
        .related-section .subtitle {
            color: #94a3b8;
            margin-bottom: 35px;
        }
        .related-card {
            background: #fff;
            border-radius: 18px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            transition: all 0.3s;
            text-decoration: none;
            color: inherit;
            display: block;
            border: 1px solid #f0f0f0;
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.1);
            color: inherit;
        }
        .related-card-img {
            height: 160px;
            overflow: hidden;
        }
        .related-card-img img {
            width: 100%; height: 100%;
            object-fit: cover;
            transition: transform 0.4s;
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.05);
        }
        .related-card-body {
            padding: 20px;
        }
        .related-card-body h4 {
            font-family: 'Montserrat', sans-serif;
            font-weight: 700;
            font-size: 1rem;
            color: #0A2540;
            margin-bottom: 6px;
        }
        .related-card-body p {
            color: #94a3b8;
            font-size: 0.88rem;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-footer {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .related-card-footer .duration {
            font-size: 0.82rem;
            color: #64748b;
            font-weight: 500;
        }
        .related-card-footer .arrow {
            width: 32px; height: 32px;
            border-radius: 50%;
            background: #F7F8FA;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #00B4D8;
            font-size: 0.8rem;
            transition: all 0.3s;
        }
        .related-card:hover .related-card-footer .arrow {
            background: #00B4D8;
            color: #fff;
        }