/* RESET & BASE */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    line-height: 1.5;
    color: #1e293b;
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* HERO SECTION */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    color: white;
    padding: 80px 0 100px;
    text-align: center;
}

.hero-badge {
    background: rgba(255,255,255,0.15);
    display: inline-block;
    padding: 8px 20px;
    border-radius: 40px;
    font-size: 0.9rem;
    margin-bottom: 24px;
    backdrop-filter: blur(4px);
}

.hero-title {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    color: #fbbf24;
    position: relative;
}

.hero-desc {
    font-size: 1.2rem;
    max-width: 650px;
    margin: 0 auto 32px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.btn-primary {
    background: #fbbf24;
    color: #0f172a;
    border: 2px solid #fbbf24;
}

.btn-primary:hover {
    background: #f59e0b;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.btn-wa {
    background: #25D366;
    color: white;
    border: 2px solid #25D366;
}

.btn-wa:hover {
    background: #128C7E;
    transform: translateY(-3px);
}

/* STATS SECTION */
.stats {
    background: #f8fafc;
    padding: 50px 0;
    border-bottom: 1px solid #e2e8f0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
    text-align: center;
}

.stat-item i {
    font-size: 2.5rem;
    color: #2563eb;
    margin-bottom: 12px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: #0f172a;
}

.stat-label {
    color: #475569;
    font-weight: 500;
}

/* PROGRAM SECTION */
.programs {
    padding: 80px 0;
    background: white;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2rem;
    color: #0f172a;
    margin-bottom: 12px;
}

.section-header p {
    color: #475569;
    font-size: 1.1rem;
}

.program-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.program-card {
    background: #ffffff;
    border-radius: 24px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border: 1px solid #eef2ff;
}

.program-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 35px rgba(0,0,0,0.1);
}

.program-icon i {
    font-size: 3rem;
    color: #2563eb;
    margin-bottom: 20px;
}

.program-card h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.program-card p {
    color: #475569;
    margin-bottom: 20px;
}

.program-price {
    background: #eef2ff;
    display: inline-block;
    padding: 8px 20px;
    border-radius: 40px;
    font-weight: 700;
    color: #1e3a8a;
}

/* FEATURES / KEUNGGULAN */
.features {
    background: #f1f5f9;
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.feature {
    background: white;
    padding: 30px 24px;
    border-radius: 20px;
    text-align: center;
    transition: 0.2s;
}

.feature i {
    font-size: 2.5rem;
    color: #f59e0b;
    margin-bottom: 16px;
}

.feature h4 {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

/* REGISTRATION + FORM */
.registration {
    padding: 80px 0;
    background: white;
}

.registration-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    background: #f9fafb;
    border-radius: 32px;
    padding: 40px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.registration-info h2 {
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.schedule-box {
    background: #eef2ff;
    padding: 20px;
    border-radius: 20px;
    margin: 24px 0;
}

.schedule-box ul {
    list-style: none;
    margin-top: 12px;
}

.schedule-box li {
    margin-bottom: 8px;
}

.contact-info {
    margin-top: 20px;
    font-weight: 500;
}

.registration-form .form-group {
    margin-bottom: 20px;
}

.registration-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
}

.required {
    color: #dc2626;
}

.registration-form input,
.registration-form select {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #cbd5e1;
    border-radius: 16px;
    font-size: 1rem;
    transition: 0.2s;
}

.registration-form input:focus,
.registration-form select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37,99,235,0.2);
}

.btn-submit {
    background: #0f172a;
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: 40px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: 0.2s;
    width: 100%;
    justify-content: center;
}

.btn-submit:hover {
    background: #1e3a8a;
    transform: scale(0.98);
}

.form-note {
    font-size: 0.75rem;
    color: #64748b;
    margin-top: 16px;
    text-align: center;
}

.form-message {
    margin-top: 20px;
    padding: 12px;
    border-radius: 16px;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background: #bbf7d0;
    color: #166534;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
}

/* FOOTER */
.footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 32px 0;
    text-align: center;
    border-top: 1px solid #1e293b;
}

.footer-small {
    font-size: 0.8rem;
    margin-top: 10px;
    opacity: 0.7;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero-title {
        font-size: 1.9rem;
    }
    .registration-wrapper {
        grid-template-columns: 1fr;
        padding: 24px;
    }
    .hero {
        padding: 50px 0;
    }
    .btn {
        padding: 10px 20px;
    }
}