/* Nirwana Aquatic — Wisata Kolam Renang (Aqua Directory)
   Arketipe: Corporate Institutional Directory */

:root {
  --primary: #0B6E99;
  --primary-dark: #0B3556;
  --secondary: #2FA9D6;
  --accent: #FF6B5B;
  --bg: #F6FAFC;
  --surface: #ffffff;
  --border: #DCE9EF;
  --text: #16232C;
  --text-muted: #5A6E78;
  --success: #2F9E6E;
  --warning: #FFC94A;
  --danger: #E4553F;
  --info: #2FA9D6;
  --radius: 14px;
  --shadow: 0 10px 28px rgba(11,53,86,0.12);
  --font-heading: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
}

[data-theme="dark"] {
  --primary: #4FB4DC;
  --primary-dark: #1B8FB8;
  --secondary: #6FCBEA;
  --accent: #FF8A73;
  --bg: #0B141A;
  --surface: #101C24;
  --border: #1E323C;
  --text: #EAF3F7;
  --text-muted: #9FB4BE;
  --shadow: 0 10px 28px rgba(0,0,0,0.5);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); background: var(--bg); color: var(--text); transition: background .3s ease, color .3s ease; }
h1, h2, h3, h4 { font-family: var(--font-heading); margin: 0 0 .5em; line-height: 1.25; }
p { color: var(--text-muted); line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; height: auto; display: block; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--primary); color: #fff; padding: 10px 16px; z-index: 999; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; font-weight: 700; font-family: var(--font-body); cursor: pointer; border: 2px solid transparent; border-radius: 10px; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; font-size: .95rem; }
.btn-pill { border-radius: 999px; }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }
.btn-sm { padding: 8px 16px; font-size: .85rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-light { background: #fff; color: var(--primary-dark); }

.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 999px; font-size: .76rem; font-weight: 700; }
.badge-info { background: var(--info); color: #fff; }
.badge-accent { background: var(--accent); color: #fff; }
.badge-success { background: var(--success); color: #fff; }
.badge-outline { background: transparent; border: 1px solid var(--border); color: var(--text-muted); }

.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 800; color: var(--primary); text-transform: uppercase; font-size: .78rem; letter-spacing: .06em; margin-bottom: 10px; }
.eyebrow-light { color: var(--secondary); }

/* ===== HEADER (institutional dropdown nav, no permanent search) ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: var(--surface); box-shadow: 0 1px 0 var(--border); }
.header-inner { display: flex; align-items: center; gap: 24px; padding: 14px 20px; }
.brand { display: flex; align-items: center; gap: 8px; font-family: var(--font-heading); font-weight: 800; font-size: 1.25rem; color: var(--primary); flex-shrink: 0; }
.brand em { font-style: normal; color: var(--accent); }
.brand-icon { font-size: 1.4rem; }

.main-nav { flex: 1; }
.nav-list { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; align-items: center; }
.nav-item { position: relative; }
.nav-item > a, .nav-trigger { display: flex; align-items: center; gap: 6px; padding: 12px 14px; font-weight: 600; background: none; border: none; cursor: pointer; color: var(--text); font-family: var(--font-body); font-size: .92rem; border-radius: 8px; }
.nav-item > a:hover, .nav-trigger:hover { color: var(--primary); }
.dropdown-panel { display: none; position: absolute; top: 100%; left: 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 10px; min-width: 240px; z-index: 50; }
.nav-item.open .dropdown-panel { display: block; }
.dropdown-panel a { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px; color: var(--text); font-size: .9rem; }
.dropdown-panel a:hover { background: var(--bg); color: var(--primary); }
.dropdown-panel i { color: var(--primary); width: 18px; }

.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.icon-btn { background: var(--bg); border: 1px solid var(--border); width: 40px; height: 40px; border-radius: 50%; cursor: pointer; color: var(--text); }
.nav-toggle { display: none; }

/* ===== HERO (real-people illustration + vision/mission) ===== */
.hero { padding: 56px 0 30px; }
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 2.5rem; }
.text-accent { color: var(--primary); }
.hero-mission { background: var(--surface); border-left: 4px solid var(--accent); border-radius: 0 10px 10px 0; padding: 14px 18px; margin: 18px 0; font-style: italic; color: var(--text); }
.hero-cta { display: flex; gap: 14px; margin: 20px 0; flex-wrap: wrap; }
.hero-media { position: relative; }
.hero-media img { border-radius: var(--radius); box-shadow: var(--shadow); }

/* Accreditation badge row */
.badge-row { padding: 30px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.badge-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.accred-card { text-align: center; padding: 14px 10px; }
.accred-card i { font-size: 1.6rem; color: var(--primary); margin-bottom: 8px; display: block; }
.accred-card h4 { font-size: .88rem; margin-bottom: 4px; }
.accred-card p { font-size: .78rem; margin: 0; }

.section { padding: 68px 0; }
.section-alt { background: var(--surface); }
.section-head { max-width: 680px; margin: 0 auto 36px; text-align: center; }

/* ===== BRANCH DIRECTORY ===== */
.branch-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.branch-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.branch-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.branch-card img { width: 100%; height: 160px; object-fit: cover; }
.branch-body { padding: 18px; }
.branch-body h3 { font-size: 1.05rem; margin-bottom: 4px; }
.branch-city { font-size: .8rem; color: var(--primary); font-weight: 700; margin-bottom: 10px; display: block; }
.branch-meta { font-size: .85rem; margin: 6px 0; display: flex; gap: 8px; align-items: flex-start; }
.branch-meta i { color: var(--primary); width: 16px; margin-top: 3px; }
.chip-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0; }
.chip { background: var(--bg); border: 1px solid var(--border); border-radius: 999px; padding: 4px 10px; font-size: .74rem; color: var(--text-muted); }

/* ===== INSTRUCTOR DIRECTORY (search + filter) ===== */
.directory-toolbar { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; align-items: center; justify-content: center; }
.directory-search { display: flex; align-items: center; gap: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 8px 18px; max-width: 360px; flex: 1; }
.directory-search i { color: var(--text-muted); }
.directory-search input { flex: 1; border: none; background: transparent; outline: none; color: var(--text); font-family: var(--font-body); }
.filter-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-chip { background: var(--surface); border: 1px solid var(--border); border-radius: 999px; padding: 8px 16px; font-size: .85rem; font-weight: 600; cursor: pointer; color: var(--text-muted); }
.filter-chip.active { background: var(--primary); border-color: var(--primary); color: #fff; }

.instructor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.instructor-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; transition: transform .25s ease, box-shadow .25s ease; }
.instructor-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.instructor-card img { width: 84px; height: 84px; border-radius: 50%; margin: 0 auto 12px; }
.instructor-card h4 { font-size: .98rem; margin-bottom: 2px; }
.instructor-specialty { color: var(--primary); font-size: .8rem; font-weight: 700; margin-bottom: 8px; display: block; }
.instructor-years { font-size: .78rem; color: var(--text-muted); margin-bottom: 10px; }
.cert-badges { display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; }
.no-results { text-align: center; color: var(--text-muted); padding: 30px 0; grid-column: 1 / -1; }

/* ===== ANNOUNCEMENTS (chronological list) ===== */
.announce-list { max-width: 780px; margin: 0 auto; }
.announce-item { display: flex; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.announce-date { flex-shrink: 0; width: 92px; text-align: center; }
.announce-date strong { display: block; font-family: var(--font-heading); font-size: 1.3rem; color: var(--primary); }
.announce-date span { font-size: .72rem; color: var(--text-muted); text-transform: uppercase; }
.announce-body h3 { font-size: 1.02rem; margin-bottom: 6px; }
.announce-body p { margin: 0; font-size: .9rem; }

/* ===== SCHEDULE / CALENDAR ===== */
.schedule-controls { display: flex; justify-content: center; margin-bottom: 24px; }
.schedule-controls select { padding: 10px 16px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font-family: var(--font-body); font-weight: 600; }
.schedule-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.schedule-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.schedule-table th, .schedule-table td { padding: 12px 14px; text-align: center; border-bottom: 1px solid var(--border); font-size: .84rem; }
.schedule-table th { background: var(--primary-dark); color: #fff; font-family: var(--font-heading); font-weight: 600; }
.schedule-table td:first-child, .schedule-table th:first-child { text-align: left; font-weight: 700; }
.schedule-table td.has-class { color: var(--primary); font-weight: 700; }
.schedule-table td.no-class { color: var(--text-muted); opacity: .5; }

.event-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 30px; }
.event-card { display: flex; gap: 14px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; align-items: center; }
.event-card i { font-size: 1.4rem; color: var(--accent); }
.event-card strong { display: block; font-size: .8rem; color: var(--primary); }
.event-card p { margin: 2px 0 0; font-size: .88rem; color: var(--text); }

/* ===== MEMBERSHIP ===== */
.membership-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.membership-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; text-align: center; position: relative; }
.membership-card.highlight { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-8px); }
.membership-card .badge-accent { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); }
.membership-price { font-family: var(--font-heading); font-size: 2rem; color: var(--primary); font-weight: 800; margin: 10px 0 2px; }
.membership-price span { font-size: .85rem; color: var(--text-muted); font-weight: 400; }
.membership-card p { font-size: .88rem; }

/* Stats */
.stat-strip { padding: 50px 0; background: var(--bg); }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat-card strong { display: block; font-size: 2.1rem; font-family: var(--font-heading); color: var(--primary); }
.stat-card span { color: var(--text-muted); font-size: .84rem; }

/* About */
.about-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; align-items: center; }
.about-media img { border-radius: var(--radius); box-shadow: var(--shadow); }
.check-list { list-style: none; padding: 0; margin: 16px 0 0; }
.check-list li { display: flex; gap: 10px; padding: 6px 0; color: var(--text); }
.check-list i { color: var(--success); }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.gallery-grid img { border-radius: 12px; cursor: pointer; height: 190px; width: 100%; object-fit: cover; transition: transform .3s ease; }
.gallery-grid img:hover { transform: scale(1.03); }

/* Articles */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.article-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.article-card img { height: 150px; width: 100%; object-fit: cover; }
.article-card-body { padding: 16px; }
.article-card-body h3 { font-size: 1rem; }
.article-card-body span { font-size: .76rem; color: var(--text-muted); }

/* Testimoni */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testi-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; }
.testi-card .stars { color: var(--warning); margin-bottom: 10px; }
.testi-card p { color: var(--text); font-style: italic; }
.testi-author { display: flex; align-items: center; gap: 10px; margin-top: 14px; }
.testi-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--primary); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; }

/* FAQ Accordion */
.accordion { max-width: 760px; margin: 0 auto; }
.acc-item { border-bottom: 1px solid var(--border); }
.acc-trigger { width: 100%; text-align: left; background: none; border: none; padding: 18px 4px; font-family: var(--font-heading); font-weight: 600; font-size: 1rem; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text); }
.acc-panel { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.acc-panel p { padding: 0 4px 18px; }
.acc-item.open .acc-panel { max-height: 300px; }
.acc-item.open .acc-trigger i { transform: rotate(180deg); }
.acc-trigger i { transition: transform .3s ease; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 48px; }
.contact-list { list-style: none; padding: 0; }
.contact-list li { display: flex; gap: 10px; padding: 8px 0; }
.contact-list i { color: var(--primary); width: 20px; }
.contact-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-weight: 700; margin-bottom: 6px; font-size: .9rem; }
.form-row input, .form-row select, .form-row textarea { width: 100%; padding: 10px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font-family: var(--font-body); outline: none; }
.form-row input:focus, .form-row select:focus, .form-row textarea:focus { border-color: var(--primary); }

/* Footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); padding-top: 50px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; padding-bottom: 30px; }
.footer-col h4 { font-size: .95rem; margin-bottom: 12px; }
.footer-col a { display: block; padding: 4px 0; color: var(--text-muted); }
.footer-col a:hover { color: var(--primary); }
.brand-footer { margin-bottom: 10px; }
.social-icons { display: flex; gap: 10px; margin-top: 14px; }
.social-icons a { width: 36px; height: 36px; border-radius: 50%; background: var(--bg); display: flex; align-items: center; justify-content: center; }
.footer-bottom { border-top: 1px solid var(--border); padding: 18px 0; text-align: center; color: var(--text-muted); font-size: .85rem; }

/* Floating */
.float-wa { position: fixed; bottom: 24px; right: 24px; width: 56px; height: 56px; border-radius: 50%; background: #25D366; color: #fff; display: flex; align-items: center; justify-content: center; font-size: 1.5rem; box-shadow: var(--shadow); z-index: 80; animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { transform: scale(1);} 50% { transform: scale(1.08);} }
.back-to-top { position: fixed; bottom: 24px; right: 90px; width: 46px; height: 46px; border-radius: 50%; background: var(--surface); border: 1px solid var(--border); color: var(--text); cursor: pointer; z-index: 80; box-shadow: var(--shadow); }

/* Modal / Toast */
.modal-overlay { position: fixed; inset: 0; background: rgba(11,53,86,0.55); display: flex; align-items: center; justify-content: center; z-index: 200; padding: 20px; }
.modal-overlay[hidden] { display: none; }
.modal-box { background: var(--surface); border-radius: var(--radius); padding: 32px; max-width: 460px; position: relative; text-align: left; width: 100%; max-height: 90vh; overflow-y: auto; }
.modal-box.text-center { text-align: center; }
.modal-close { position: absolute; top: 12px; right: 16px; background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--text-muted); }
.modal-box h3 { margin: 6px 0 12px; }
.modal-detail-list { list-style: none; padding: 0; margin: 14px 0; }
.modal-detail-list li { display: flex; gap: 8px; padding: 6px 0; font-size: .9rem; }
.modal-detail-list i { color: var(--success); }

.toast { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 14px 24px; border-radius: 999px; box-shadow: var(--shadow); z-index: 300; font-weight: 700; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* ===== RESPONSIVE ===== */
@media (max-width: 1020px) {
  .instructor-grid { grid-template-columns: repeat(3, 1fr); }
  .branch-grid { grid-template-columns: repeat(2, 1fr); }
  .badge-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 960px) {
  .hero-inner, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .membership-grid, .event-strip { grid-template-columns: 1fr; }
  .membership-card.highlight { transform: none; }
  .gallery-grid, .article-grid, .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 780px) {
  .main-nav { display: none; }
  .main-nav.open { display: block; position: absolute; top: 100%; left: 0; right: 0; background: var(--surface); border-top: 1px solid var(--border); box-shadow: var(--shadow); padding: 10px; }
  .nav-list { flex-direction: column; align-items: stretch; }
  .dropdown-panel { position: static; min-width: 0; box-shadow: none; border: none; display: none; }
  .nav-item.open .dropdown-panel { display: block; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .instructor-grid { grid-template-columns: repeat(2, 1fr); }
  .branch-grid { grid-template-columns: 1fr; }
  .badge-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .instructor-grid, .gallery-grid, .article-grid, .testi-grid, .stat-grid, .footer-grid, .badge-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
  .directory-search { max-width: none; width: 100%; }
}