/* Landing Page CSS - SDN Ancol 03 */
body {
    font-family: 'Poppins', sans-serif;
}

.hero-pattern {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #172554 100%);
    position: relative;
    overflow: hidden;
}

.hero-pattern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: movePattern 30s linear infinite;
}

.hero-pattern::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes movePattern {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

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

.gradient-text {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-gradient {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.dark-blue-gradient {
    background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 50%, #172554 100%);
}

.elegant-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(30, 58, 138, 0.1);
}

.elegant-card:hover {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 12px 40px rgba(30, 58, 138, 0.15);
}

.elegant-shadow {
    box-shadow: 0 10px 40px rgba(30, 58, 138, 0.1);
}

.premium-gradient {
    background: linear-gradient(135deg, #3b82f6 0%, #1e40af 100%);
}

.hero-title {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.section-divider {
    height: 2px;
    background: linear-gradient(90deg, transparent, #667eea, transparent);
}

.card-hover {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0,0,0,0.12);
    border-color: rgba(102, 126, 234, 0.3);
}

.pulse-glow {
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.4); }
    50% { box-shadow: 0 0 35px rgba(30, 64, 175, 0.6); }
}

.float-animation {
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(5deg); }
    66% { transform: translateY(-10px) rotate(-5deg); }
}

/* Gallery Modern Styles */
.gallery-card {
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-card:hover {
    transform: translateY(-8px);
}

.gallery-img {
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-card:hover .gallery-img {
    transform: scale(1.1);
}

/* Old gallery styles - keeping for backward compatibility */
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 1rem;
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    display: flex;
    align-items: flex-end;
    padding: 1.5rem;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.ticker-wrap {
    width: 100%;
    overflow: hidden;
    background: linear-gradient(90deg, #1e3a8a 0%, #1e40af 50%, #172554 100%);
    padding: 1rem 0;
    position: relative;
}

.ticker {
    display: inline-block;
    white-space: nowrap;
    animation: ticker 30s linear infinite;
}

@keyframes ticker {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

.achievement-badge {
    position: relative;
    display: inline-block;
}

.achievement-badge::before {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: #fbbf24;
    border-radius: 50%;
    animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
    75%, 100% { transform: scale(2); opacity: 0; }
}

.teacher-slider {
    position: relative;
}

.teacher-track {
    will-change: transform;
}