/* =====================================================================
   TRACER STUDY INSIMA — Design System
   Soft Neumorphism + Flat Design (subtle). Mobile-first.
   Palet warna terkunci sesuai ketentuan; jangan ubah warna primer.
   ===================================================================== */
:root {
  --c-primary:#0F4C81; --c-primary-600:#0d436f; --c-primary-050:#e7eef5;
  --c-gold:#BD993B; --c-gold-600:#a5842f;
  --c-bg:#F5F7FA; --c-surface:#FFFFFF;
  --c-text:#1F2937; --c-text-muted:#6B7280; --c-border:#E5E7EB;
  --c-success:#16A34A; --c-warning:#D97706; --c-danger:#DC2626;
  --nm-shadow:8px 8px 20px rgba(15,76,129,.08), -8px -8px 20px rgba(255,255,255,.9);
  --nm-shadow-sm:4px 4px 10px rgba(15,76,129,.07), -4px -4px 10px rgba(255,255,255,.85);
  --nm-inset:inset 3px 3px 7px rgba(15,76,129,.10), inset -3px -3px 7px rgba(255,255,255,.9);
  --flat-shadow:0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --radius:16px; --radius-sm:10px; --radius-lg:24px;
  --font-display:'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-body:'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --container:1120px; --header-h:68px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font-body);background:var(--c-bg);color:var(--c-text);line-height:1.6;font-size:16px;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--font-display);line-height:1.25;color:var(--c-text);margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(1.8rem,4vw,2.6rem);letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,3vw,1.9rem);letter-spacing:-.01em}
h3{font-size:1.2rem}
p{margin:0 0 1rem}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-600)}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
.muted{color:var(--c-text-muted)}
.text-center{text-align:center}
.mt-0{margin-top:0}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}
.mb-0{margin-bottom:0}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}
.skip-link{position:absolute;left:-999px;top:0;z-index:1000;background:var(--c-primary);color:#fff;padding:10px 16px;border-radius:0 0 8px 0}
.skip-link:focus{left:0;color:#fff}
/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(245,247,250,.85);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--c-border)}
.site-header .bar{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-family:var(--font-display);color:var(--c-primary);font-size:1.05rem}
.brand .logo-mark{width:38px;height:38px;border-radius:12px;flex:none;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-600));color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:var(--nm-shadow-sm);overflow:hidden}
.brand .logo-mark span{font-size:1rem;letter-spacing:-.03em}
.brand .brand-text small{display:block;font-size:.65rem;color:var(--c-gold);font-weight:700;letter-spacing:.12em;text-transform:uppercase;line-height:1}
.brand .brand-text b{font-size:1rem;line-height:1.1;display:block}
.nav-toggle{display:inline-flex;border:none;background:var(--c-surface);box-shadow:var(--nm-shadow-sm);width:44px;height:44px;border-radius:12px;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:'';display:block;width:20px;height:2px;background:var(--c-text);border-radius:2px;position:relative;transition:.2s}
.nav-toggle span::before{position:absolute;top:-6px}
.nav-toggle span::after{position:absolute;top:6px}
.main-nav ul{list-style:none;display:flex;align-items:center;gap:6px;margin:0;padding:0}
.main-nav a{display:inline-block;padding:9px 14px;border-radius:10px;color:var(--c-text);font-weight:600;font-size:.95rem;transition:.18s}
.main-nav a:hover{background:var(--c-primary-050);color:var(--c-primary)}
.main-nav a.active{color:var(--c-primary);background:var(--c-primary-050)}
.nav-cta{background:var(--c-primary)!important;color:#fff!important;box-shadow:var(--nm-shadow-sm)}
.nav-cta:hover{background:var(--c-primary-600)!important;color:#fff!important}
@media (max-width:860px){
  .main-nav{position:fixed;inset:var(--header-h) 0 auto 0;background:var(--c-surface);border-bottom:1px solid var(--c-border);padding:12px 20px;transform:translateY(-130%);transition:transform .25s ease;box-shadow:var(--flat-shadow)}
  .main-nav.open{transform:translateY(0)}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:12px 14px}
}
@media (min-width:861px){.nav-toggle{display:none}}
/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--font-display);font-weight:700;font-size:.95rem;padding:12px 22px;border-radius:12px;border:none;cursor:pointer;transition:transform .12s ease,box-shadow .18s ease,background .18s ease;text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--nm-shadow-sm)}
.btn-primary:hover{background:var(--c-primary-600);color:#fff}
.btn-gold{background:var(--c-gold);color:#fff;box-shadow:var(--nm-shadow-sm)}
.btn-gold:hover{background:var(--c-gold-600);color:#fff}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);box-shadow:var(--nm-shadow-sm)}
.btn-ghost:hover{color:var(--c-primary-600)}
.btn-outline{background:transparent;color:var(--c-primary);border:1.5px solid var(--c-border)}
.btn-outline:hover{border-color:var(--c-primary)}
.btn-danger{background:var(--c-danger);color:#fff}
.btn-sm{padding:8px 14px;font-size:.85rem;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.55;cursor:not-allowed}
/* Cards */
.card{background:var(--c-surface);border-radius:var(--radius);box-shadow:var(--nm-shadow);padding:24px}
.card-flat{background:var(--c-surface);border-radius:var(--radius);box-shadow:var(--flat-shadow);border:1px solid var(--c-border);padding:20px}
.section{padding:56px 0}
.section-sm{padding:36px 0}
.eyebrow{color:var(--c-gold);font-weight:800;letter-spacing:.14em;text-transform:uppercase;font-size:.72rem;margin-bottom:8px}
/* Hero */
.hero{padding:56px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero p.lead{font-size:1.08rem;color:var(--c-text-muted);max-width:46ch}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.hero-visual{background:linear-gradient(135deg,var(--c-primary),var(--c-primary-600));border-radius:var(--radius-lg);box-shadow:var(--nm-shadow);min-height:260px;display:grid;place-items:center;color:#fff;padding:32px;position:relative;overflow:hidden}
.hero-visual::after{content:'';position:absolute;width:220px;height:220px;border-radius:50%;background:rgba(189,153,59,.35);filter:blur(10px);right:-40px;bottom:-60px}
.hero-visual.has-image{padding:0}
.hero-visual.has-image::after{display:none}
.hero-visual.has-image img{width:100%;height:100%;object-fit:cover;border-radius:var(--radius-lg);box-shadow:none}
.hero-visual img{border-radius:var(--radius);box-shadow:var(--flat-shadow)}
.hero-visual .stat-badge{position:relative;z-index:1;text-align:center}
.hero-visual .stat-badge b{font-size:2.6rem;font-family:var(--font-display);display:block}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr}.hero-visual{min-height:200px}}
/* Stat grid */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:18px}
.stat{background:var(--c-surface);border-radius:var(--radius);box-shadow:var(--nm-shadow-sm);padding:20px;display:flex;flex-direction:column;gap:4px}
.stat .num{font-size:2rem;font-weight:800;font-family:var(--font-display);color:var(--c-primary)}
.stat .lbl{color:var(--c-text-muted);font-size:.9rem;font-weight:600}
.stat.gold .num{color:var(--c-gold)}
/* Forms */
.form-group{margin-bottom:18px}
label.form-label{display:block;font-weight:600;margin-bottom:6px;font-size:.92rem}
.req{color:var(--c-danger)}
.form-control{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-text);font-family:inherit;font-size:1rem;box-shadow:var(--nm-inset);transition:border-color .15s,box-shadow .15s}
.form-control:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-050)}
.form-control.is-invalid{border-color:var(--c-danger)}
textarea.form-control{min-height:120px;resize:vertical;box-shadow:var(--nm-inset)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:640px){.form-row{grid-template-columns:1fr}}
.field-error{color:var(--c-danger);font-size:.82rem;margin-top:4px;display:none}
.field-error.show{display:block}
.form-hint{color:var(--c-text-muted);font-size:.82rem;margin-top:4px}
.input-suffix{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.input-suffix .form-control{max-width:200px}
.input-suffix span{color:var(--c-text-muted);font-size:.92rem}
.choice-list{display:flex;flex-direction:column;gap:10px}
.choice{display:flex;align-items:flex-start;gap:12px;padding:12px 14px;border-radius:12px;border:1px solid var(--c-border);background:var(--c-surface);cursor:pointer;transition:.15s}
.choice:hover{border-color:var(--c-primary);background:var(--c-primary-050)}
.choice input{margin-top:3px;width:18px;height:18px;accent-color:var(--c-primary);flex:none}
.choice.checked{border-color:var(--c-primary);background:var(--c-primary-050);box-shadow:var(--nm-shadow-sm)}
.choice .choice-label{font-size:.95rem}
/* Alerts */
.alert{padding:12px 16px;border-radius:12px;margin-bottom:16px;font-size:.92rem;border:1px solid transparent}
.alert-success{background:#ecfdf3;color:#067647;border-color:#abefc6}
.alert-danger{background:#fef3f2;color:#b42318;border-color:#fecdca}
.alert-warning{background:#fffaeb;color:#b54708;border-color:#fedf89}
.alert-info{background:var(--c-primary-050);color:var(--c-primary-600);border-color:#c7d7e8}
/* Chart */
.chart-card{background:var(--c-surface);border-radius:var(--radius);box-shadow:var(--nm-shadow-sm);padding:20px}
.chart-card h3{font-size:1.05rem;margin-bottom:4px}
.chart-card .chart-sub{color:var(--c-text-muted);font-size:.84rem;margin-bottom:14px}
.chart-wrap{position:relative;height:300px}
.chart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px}
.empty-state{text-align:center;padding:40px 16px;color:var(--c-text-muted)}
/* Filter */
.filter-bar{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.filter-bar .form-group{margin-bottom:0;min-width:180px}
/* News */
.news-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:22px}
.news-card{background:var(--c-surface);border-radius:var(--radius);box-shadow:var(--nm-shadow-sm);overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .2s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--nm-shadow)}
.news-thumb{aspect-ratio:16/9;background:var(--c-primary-050);object-fit:cover;width:100%}
.news-thumb.placeholder{display:grid;place-items:center;color:var(--c-primary);font-weight:700}
.news-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.news-body time{color:var(--c-gold);font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em}
.news-body h3{font-size:1.1rem}
.article-content{max-width:70ch}
.article-content img{border-radius:var(--radius);margin:16px 0}
/* Footer */
.site-footer{background:#0b3a63;color:#cbd9e8;margin-top:64px}
.site-footer a{color:#e7eef5}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:32px;padding:48px 0 24px}
.site-footer h4{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:16px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.82rem}
.footer-bottom a.admin-link{color:#8fb0d0;font-size:.8rem}
.footer-bottom a.admin-link:hover{color:#fff}
@media (max-width:720px){.footer-grid{grid-template-columns:1fr;gap:24px}}
/* Page heading */
.page-head{background:linear-gradient(180deg,var(--c-primary-050),transparent);padding:40px 0 24px}
.breadcrumb{color:var(--c-text-muted);font-size:.85rem;margin-bottom:6px}
.breadcrumb a{color:var(--c-text-muted)}
/* Utilities */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.74rem;font-weight:700}
.badge-green{background:#ecfdf3;color:#067647}
.badge-gray{background:#f2f4f7;color:#475467}
.badge-gold{background:#fdf6e7;color:var(--c-gold-600)}
.divider{height:1px;background:var(--c-border);margin:24px 0;border:none}
.table{width:100%;border-collapse:collapse}
.table th,.table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--c-border);font-size:.92rem}
.table th{color:var(--c-text-muted);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--nm-shadow-sm);background:var(--c-surface)}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}