/* assets/css/style.css */
:root {
    --primary: #2563eb;
    --bg-light: #f8fafc;
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.5);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    overflow-x: hidden; /* Mencegah horizontal scroll */
    line-height: 1.5;
    padding-bottom: 80px; /* Space untuk bottom nav mobile */
}

/* Header Center */
.app-header {
    text-align: center;
    padding: 1.5rem 1rem;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-header h1 { font-size: 1.25rem; font-weight: 700; color: var(--primary); }
.app-header p { font-size: 0.875rem; color: var(--text-muted); }

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Grid System: 5 Kolom Desktop, Responsif Mobile */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Card Glassmorphism */
.card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 1.25rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-align: center;
    text-decoration: none;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.card-icon {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.card-text {
    font-size: 0.875rem;
    font-weight: 600;
}

/* Accordion Effect */
.accordion-item {
    background: #fff;
    border-radius: 12px;
    margin-bottom: 0.75rem;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.accordion-header {
    padding: 1rem;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255,255,255,0.9);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1rem;
    background: #fff;
}

.accordion-content.active {
    max-height: 500px; /* Adjust based on content */
    padding-bottom: 1rem;
}

/* Map Container (Light Theme) */
#map {
    height: 300px;
    width: 100%;
    border-radius: 16px;
    margin-top: 1.5rem;
    box-shadow: var(--shadow);
    z-index: 1;
}

/* WhatsApp Floating Button */
.wa-float {
    position: fixed;
    bottom: 90px;
    right: 20px;
    background-color: #25D366;
    color: white;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    z-index: 999;
    text-decoration: none;
    transition: transform 0.2s;
}
.wa-float:hover { transform: scale(1.1); }

/* Bottom Navigation (Mobile First) */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-around;
    padding: 0.75rem 0;
    z-index: 1000;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.7rem;
}

.nav-item.active { color: var(--primary); }
.nav-item svg { width: 24px; height: 24px; margin-bottom: 4px; }

/* RESPONSIVE: Mobile Optimization */
@media (max-width: 768px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 kolom di mobile agar tidak terlalu kecil */
    }
    
    /* Desktop: Tampilkan teks, Mobile: Hanya ikon di navigasi */
    .nav-text { display: none; }
    
    .card { padding: 1rem; }
    .card-icon { font-size: 1.5rem; }
}

@media (min-width: 769px) {
    .bottom-nav { display: none; } /* Sembunyikan bottom nav di desktop */
    body { padding-bottom: 0; }
    .wa-float { bottom: 30px; }
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 6px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(37, 99, 235, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

/* Input focus */
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Utility: Grid Centered (untuk section fitur/keunggulan) */
.grid-centered {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    justify-content: center;
    justify-items: center;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    gap: 1rem;
}

/* Pastikan heading section juga center & konsisten */
.section-title {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 3rem 0 1rem;
    color: var(--text-main);
}

/* Di mobile, grid jadi 2 kolom tetap agar rapi */
@media (max-width: 768px) {
    .grid-centered {
        grid-template-columns: repeat(2, 1fr);
        max-width: 100%;
    }
}

/* ============================================
   NAVBAR STICKY
   ============================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: 0.875rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.navbar-logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-logo span {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.navbar-menu a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.navbar-menu a:hover { color: var(--primary); }

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    padding: 0.25rem;
    background: rgba(0,0,0,0.04);
    border-radius: 20px;
}

.lang-switcher a {
    padding: 0.25rem 0.75rem;
    border-radius: 16px;
    font-size: 0.8rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-muted);
    transition: all 0.2s;
}

.lang-switcher a.active {
    background: var(--primary);
    color: white;
}

@media (max-width: 768px) {
    .navbar { padding: 0.75rem 1rem; }
    .navbar-menu { gap: 1rem; }
    .navbar-menu a:not(.btn) { display: none; }
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    position: relative;
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 1.5rem;
    overflow: hidden;
    color: white;
    
    /* Background image + gradient overlay */
    background: 
        linear-gradient(135deg, rgba(37, 99, 235, 0.92) 0%, rgba(124, 58, 237, 0.88) 50%, rgba(236, 72, 153, 0.85) 100%),
        url('https://images.unsplash.com/photo-1540575467063-178a50c2df87?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
}

/* Pattern overlay untuk efek modern */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(255,255,255,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* Animated floating shapes */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='1' opacity='0.15'%3E%3Cpath d='M30 0v60M0 30h60'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
    animation: floatPattern 30s linear infinite;
}

@keyframes floatPattern {
    from { background-position: 0 0; }
    to { background-position: 60px 60px; }
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 850px;
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.75rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hero h1 .gradient-text {
    background: linear-gradient(90deg, #fbbf24, #f472b6, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    opacity: 0.95;
    margin-bottom: 2rem;
    line-height: 1.6;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero-buttons .btn {
    padding: 0.95rem 2rem;
    font-size: 1rem;
    font-weight: 700;
    border-radius: 12px;
    min-width: 180px;
}

.btn-hero-primary {
    background: white;
    color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.btn-hero-outline {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-hero-outline:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: white;
}

/* Stats counter */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 2.5rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    display: block;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.85rem;
    opacity: 0.85;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

@media (max-width: 640px) {
    .hero { min-height: 75vh; padding: 3rem 1rem; }
    .hero-stats { gap: 1.5rem; }
    .stat-number { font-size: 1.5rem; }
}

/* ============================================
   SECTION TITLES (Enhanced)
   ============================================ */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

.section-eyebrow {
    display: inline-block;
    color: var(--primary);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* ============================================
   FEATURES CARDS (Enhanced)
   ============================================ */
.feature-card {
    background: white;
    border-radius: 20px;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), #7c3aed);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.12);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, #dbeafe, #ede9fe);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ============================================
   HOW IT WORKS SECTION
   ============================================ */
.how-it-works {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
    padding: 5rem 1.5rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
    max-width: 1100px;
    margin: 0 auto;
    position: relative;
}

.step-card {
    text-align: center;
    padding: 1.5rem;
    position: relative;
}

.step-number {
    width: 56px;
    height: 56px;
    margin: 0 auto 1.25rem;
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.step-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* ============================================
   EVENT CARDS (Enhanced)
   ============================================ */
.event-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-main);
    display: flex;
    flex-direction: column;
}

.event-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.12);
}

.event-card-image {
    width: 100%;
    height: 160px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: white;
    position: relative;
}

.event-card-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.2), transparent 60%);
}

.event-card-body {
    padding: 1.25rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.event-card-organizer {
    font-size: 0.75rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.event-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.3;
    color: var(--text-main);
}

.event-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 0.75rem;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.event-badge {
    background: #dcfce7;
    color: #166534;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 700;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    padding: 4rem 1.5rem;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Cg fill='none' stroke='%23ffffff' stroke-width='1' opacity='0.1'%3E%3Ccircle cx='20' cy='20' r='10'/%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 2;
    max-width: 700px;
    margin: 0 auto;
}

.cta-section h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 1rem;
}

.cta-section p {
    font-size: 1.1rem;
    opacity: 0.95;
    margin-bottom: 2rem;
}

.cta-section .btn {
    background: white;
    color: var(--primary);
    padding: 1rem 2.5rem;
    font-weight: 700;
    font-size: 1rem;
}

.cta-section .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: #0f172a;
    color: #cbd5e1;
    padding: 4rem 1.5rem 2rem;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    color: white;
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.2s;
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    color: white;
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-col li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: white;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    .footer-brand { grid-column: 1 / -1; }
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* ============================================
   SECTION SPACING
   ============================================ */
.section {
    padding: 5rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .section { padding: 3rem 1rem; }
}