:root{
  --bg:#f6f8fc;
  --surface:#ffffff;
  --ink:#0b172a;
  --muted:#5f6f85;
  --line:#e2e8f0;
  --accent:#0f766e;
  --accent-strong:#115e59;
  --accent-soft:#ecfdf5;
  --amber:#f59e0b;
  --danger:#dc2626;
  --navy:#0b1f33;
  --shadow:0 24px 60px rgba(15,23,42,.12);
  --shadow-soft:0 10px 30px rgba(15,23,42,.06);
  --radius:18px;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Inter","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  background:
    radial-gradient(circle at 8% 0%,rgba(15,118,110,.10),transparent 38%),
    radial-gradient(circle at 92% 8%,rgba(245,158,11,.08),transparent 32%),
    var(--bg);
  color:var(--ink);
  line-height:1.5;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  -webkit-tap-highlight-color:rgba(15,118,110,.18);
  overscroll-behavior-y:none;
}
[hidden]{display:none!important}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit;touch-action:manipulation}
button{cursor:pointer}
section[id]{scroll-margin-top:92px}
p,h1,h2,h3,li{text-wrap:pretty}
:where(a,button,input,textarea,[tabindex]):focus-visible{
  outline:3px solid rgba(15,118,110,.35);outline-offset:3px;
}
.skip-link{
  position:absolute;left:12px;top:-60px;z-index:1000;min-height:44px;display:flex;align-items:center;
  background:var(--navy);color:#fff;padding:10px 14px;border-radius:0 0 10px 10px;
  font-size:13px;font-weight:700;transition:top .15s ease;
}
.skip-link:focus{top:0}
.view{width:100%;max-width:1120px;margin:0 auto;padding:24px}
.landing{max-width:1240px;padding:0 24px 64px}
.dashboard-view{max-width:1120px}
.page-view{max-width:820px}
.exam{max-width:1240px;padding:0}
.muted{color:var(--muted)}
.center{text-align:center}
.sub{color:var(--muted);font-size:13.5px;line-height:1.6}

/* brand */
.site-header{
  max-width:1240px;margin:0 auto;padding:18px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  position:sticky;top:0;z-index:40;
  background:rgba(246,248,252,.86);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,240,.7);
}
.site-brand{display:flex;align-items:center;min-height:44px;gap:10px;font-weight:800;color:var(--navy);letter-spacing:-.03em;font-size:15px}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--navy));
  color:#fff;font-size:13px;font-weight:800;letter-spacing:.02em;flex:0 0 auto;
}
.site-nav{display:flex;gap:24px;font-size:14px;font-weight:600;color:var(--muted)}
.site-nav a:hover{color:var(--accent)}
.landing-main{padding:26px 0 40px}

/* hero */
.hero{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.15fr .85fr;gap:34px;align-items:center;
  padding:46px 48px;border-radius:28px;
  background:linear-gradient(135deg,#0b1f33 0%,#0f3d3a 100%);
  color:#fff;box-shadow:var(--shadow);
}
.hero::before{
  content:"";position:absolute;width:420px;height:420px;right:-120px;top:-160px;
  background:radial-gradient(circle,rgba(245,158,11,.22),transparent 66%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;width:360px;height:360px;left:-140px;bottom:-180px;
  background:radial-gradient(circle,rgba(15,118,110,.35),transparent 68%);
  pointer-events:none;
}
.hero-copy,.auth-panel{position:relative;z-index:1}
.eyebrow{
  display:inline-block;text-transform:uppercase;letter-spacing:.14em;
  font-size:11px;font-weight:800;color:var(--amber);
}
.hero h1{
  margin:14px 0 18px;font-size:clamp(2.2rem,4.2vw,3.8rem);
  line-height:1.04;letter-spacing:-.045em;color:#fff;max-width:680px;
}
.lead{color:#cbd5e1;font-size:16px;line-height:1.7;max-width:640px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.hero-metrics{display:flex;gap:34px;margin-top:34px;flex-wrap:wrap}
.hero-metrics div{display:flex;flex-direction:column;gap:2px}
.hero-metrics b{font-size:28px;line-height:1;color:#fff}
.hero-metrics span{font-size:11px;text-transform:uppercase;letter-spacing:.12em;color:#cbd5e1}
.hero-note{margin-top:26px;color:#cbd5e1;font-size:12px;max-width:520px}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 18px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);color:var(--ink);font-size:14px;font-weight:650;
  transition:transform .15s ease,background .15s ease,border-color .15s ease,box-shadow .15s ease;
}
.btn:hover{transform:translateY(-1px);background:#f8fafc;box-shadow:0 6px 18px rgba(15,23,42,.08)}
.btn:focus-visible{outline:3px solid rgba(15,118,110,.25);outline-offset:2px}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}
.btn.ghost{background:transparent;border-color:transparent;color:var(--muted);padding-left:12px;padding-right:12px}
.btn.ghost:hover{background:rgba(15,23,42,.05);color:var(--ink)}
.btn.ghost-light{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3);color:#fff}
.btn.ghost-light:hover{background:rgba(255,255,255,.14)}
.btn.danger{background:var(--danger);border-color:var(--danger);color:#fff}
.btn.danger:hover{background:#b91c1c}
.btn.small{min-height:44px;padding:9px 15px;font-size:12.5px}
.btn.light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.2);color:#fff}
.btn.wide{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* auth panel */
.auth-panel{
  background:var(--surface);color:var(--ink);border-radius:24px;padding:26px;
  box-shadow:0 28px 70px rgba(0,0,0,.28);max-width:410px;justify-self:end;width:100%;
}
.auth-head{display:flex;gap:12px;align-items:flex-start;margin-bottom:22px}
.auth-head h2{font-size:21px;letter-spacing:-.02em;margin-bottom:4px}
.auth-head p{color:var(--muted);font-size:13px}
.auth-card h2{color:var(--ink)}
.tabs{display:flex;gap:4px;padding:4px;background:#f1f5f9;border-radius:12px;margin-bottom:18px}
.tab{flex:1;min-height:44px;border:0;background:transparent;border-radius:9px;padding:9px 12px;color:var(--muted);font-size:13px;font-weight:650}
.tab.active{background:#fff;color:var(--ink);box-shadow:0 2px 8px rgba(15,23,42,.08)}
.pane{display:none}
.pane.active{display:block}
.field-label{display:block;margin:10px 0 5px;font-size:12px;font-weight:650;color:var(--muted)}
input[type=email],input[type=password],input[type=text]{
  width:100%;min-height:44px;padding:11px 14px;border:1px solid var(--line);border-radius:10px;
  background:#f8fafc;color:var(--ink);font-size:14px;outline:none;
}
input[type=email]:focus,input[type=password]:focus,input[type=text]:focus{
  border-color:var(--accent);box-shadow:0 0 0 4px rgba(15,118,110,.12);background:#fff;
}
.ts-box{margin:12px 0;min-height:65px}
.msg{margin-top:10px;font-size:13px;min-height:18px}
.msg.err{color:var(--danger)}
.msg.ok{color:var(--accent)}
.payinfo{margin-top:12px;padding:12px 14px;background:var(--accent-soft);border:1px solid #bbf7d0;border-radius:12px;font-size:13px;line-height:1.55}

/* sections */
.section{margin-top:58px}
.section-head{max-width:680px;margin-bottom:24px}
.section-head .eyebrow{color:var(--accent)}
.section-head h2{margin:8px 0 8px;font-size:clamp(1.5rem,2.6vw,2.2rem);letter-spacing:-.035em;color:var(--ink)}
.section-head p{color:var(--muted);font-size:14px;line-height:1.65}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.feature-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-soft);transition:transform .2s ease,box-shadow .2s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature-index{display:block;font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--accent);margin-bottom:18px}
.feature-card h3{font-size:17px;letter-spacing:-.02em;margin-bottom:8px}
.feature-card p{font-size:13.5px;color:var(--muted);line-height:1.6}
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.price-card{
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:26px;display:flex;flex-direction:column;box-shadow:var(--shadow-soft);
}
.price-card.featured{border-color:rgba(15,118,110,.55);box-shadow:0 18px 45px rgba(15,118,110,.12);background:linear-gradient(180deg,#fff 0%,#f0fdf9 100%)}
.price-kicker{font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;font-weight:800;color:var(--muted);margin-bottom:14px}
.price-card h3{font-size:18px;margin-bottom:4px}
.price{font-size:32px;font-weight:800;letter-spacing:-.04em;color:var(--ink);margin:8px 0 18px}
.price-card ul{list-style:none;display:grid;gap:9px;margin:0 0 24px;font-size:13.5px;color:var(--muted)}
.price-card li::before{content:"✓";color:var(--accent);font-weight:800;margin-right:8px}
.price-card .btn{margin-top:auto;align-self:flex-start}

/* dashboard */
.dash-shell{width:100%}
.dash-top{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:var(--surface);border:1px solid var(--line);border-radius:18px;
  padding:16px 20px;box-shadow:var(--shadow-soft);margin-bottom:24px;flex-wrap:wrap;
}
.dash-user{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;flex-wrap:wrap}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11px;font-weight:700;background:#fef3c7;color:#92400e;vertical-align:middle}
.badge.ok{background:#d1fae5;color:#065f46}
.dash-body{display:grid;gap:16px}
.dash-intro{background:linear-gradient(135deg,var(--navy),var(--accent-strong));color:#fff;border-radius:18px;padding:24px;box-shadow:var(--shadow-soft)}
.dash-intro .eyebrow{color:var(--amber)}
.dash-intro h2{color:#fff;margin:8px 0 6px}
.dash-intro .sub{color:#cbd5e1;margin:0}
.dash-body h2{font-size:18px;margin-top:12px;letter-spacing:-.02em}
.dash-body > .sub{margin:4px 0 0}
.dash-list{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:4px}
.dash-item{
  display:flex;flex-direction:column;gap:3px;background:var(--surface);
  border:1px solid var(--line);border-radius:14px;padding:16px;font-size:13px;color:var(--muted);
}
.dash-item b{font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums}
.dash-body > div[style]{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px!important}
.dash-body .btn{flex:0 0 auto}
.pkg{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  padding:16px 18px;margin-bottom:10px;box-shadow:0 4px 14px rgba(15,23,42,.03);
  transition:border-color .15s ease,box-shadow .15s ease,transform .15s ease;
}
.pkg:hover{border-color:#cbd5e1;box-shadow:0 8px 24px rgba(15,23,42,.08);transform:translateY(-1px)}
.pkg:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(15,118,110,.12)}
.pkg b{font-size:14px}
.pkg-badge{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:999px;background:var(--accent-soft);color:var(--accent-strong);font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.06em;vertical-align:middle}
#btn-more-pkgs{margin-top:2px}
#more-pkgs{margin-top:4px}
.pkg .btn{white-space:nowrap;flex:0 0 auto}
.pkg .sub{margin-top:2px}

/* page cards */
.page-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:var(--shadow-soft)}
.row-between{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.page-card h2{font-size:22px;letter-spacing:-.03em;margin:6px 0 8px}
.essay-actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}
.essay-input{width:100%;padding:14px;border:1px solid var(--line);border-radius:12px;background:#f8fafc;font-size:14px;line-height:1.65;font-family:inherit;resize:vertical;outline:none}
.essay-input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(15,118,110,.12);background:#fff}
.essay-item{padding:14px 0;border-bottom:1px solid var(--line)}
.essay-item:last-child{border-bottom:0}
.essay-item button{margin-top:8px}
.score-pill{display:inline-block;padding:3px 12px;border-radius:999px;background:var(--accent-soft);color:var(--accent);font-weight:700}
#es-golden pre{white-space:pre-wrap;font-family:inherit;font-size:12.5px;line-height:1.6}

/* exam */
.exam-bar{
  position:sticky;top:0;z-index:30;display:flex;gap:14px;align-items:center;
  background:var(--navy);color:#fff;padding:14px 24px;border-radius:0 0 18px 18px;
  box-shadow:0 8px 24px rgba(11,31,51,.18);flex-wrap:wrap;
}
.exam-brand{display:flex;align-items:center;gap:10px;font-size:14px}
.exam-brand b{letter-spacing:-.02em}
.exam-sub{color:#94a3b8;font-size:11px;text-transform:uppercase;letter-spacing:.1em}
.timer{font-variant-numeric:tabular-nums;background:rgba(255,255,255,.14);padding:6px 14px;border-radius:9px;font-size:15px;font-weight:700}
.timer.low{background:var(--danger)}
.viol{font-size:12.5px;color:#fcd34d}
.exam-main{display:grid;grid-template-columns:1fr 280px;gap:18px;padding:22px;max-width:1240px;margin:0 auto}
.q-pane{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:28px;box-shadow:var(--shadow-soft)}
.q-head{display:flex;justify-content:space-between;gap:12px;font-size:12.5px;color:var(--muted);margin-bottom:14px;flex-wrap:wrap}
.q-hint{font-size:11px;text-transform:uppercase;letter-spacing:.1em;color:var(--muted)}
.q-text{font-size:16px;line-height:1.7;margin-bottom:20px;white-space:pre-wrap;color:var(--ink)}
.q-opts label{
  display:flex;align-items:flex-start;gap:12px;padding:14px 16px;border:1px solid var(--line);
  border-radius:12px;margin-bottom:9px;cursor:pointer;font-size:14px;line-height:1.5;
  transition:background .15s ease,border-color .15s ease,transform .1s ease;
}
.q-opts label:hover{background:#f8fafc;border-color:#cbd5e1}
.q-opts label:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(15,118,110,.12)}
.q-opts label.sel{border-color:var(--accent);background:var(--accent-soft)}
.q-opts input[type=radio]{width:18px;height:18px;margin:1px 0 0;accent-color:var(--accent);flex:0 0 auto}
.q-opts .letter{font-weight:800;color:var(--accent);flex:0 0 auto}
.q-nav{display:flex;gap:9px;margin-top:24px;flex-wrap:wrap}
.grid-pane{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:18px;height:fit-content;box-shadow:var(--shadow-soft);position:sticky;top:92px}
.grid-title{font-size:12.5px;color:var(--muted);margin-bottom:12px}
.q-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:6px}
.q-grid button{min-width:44px;min-height:44px;padding:8px 0;border:1px solid var(--line);background:#f8fafc;border-radius:7px;font-size:12px;color:var(--muted)}
.q-grid button.done{background:#d1fae5;border-color:#a7f3d0;color:#065f46}
.q-grid button.cur{background:var(--accent);border-color:var(--accent);color:#fff}
.legend{margin-top:14px;font-size:11.5px;color:var(--muted)}
.dot{display:inline-block;width:10px;height:10px;border-radius:3px;margin:0 4px 0 10px;vertical-align:-1px}
.dot.done{background:#d1fae5}.dot.cur{background:var(--accent)}
.overlay{position:fixed;inset:0;z-index:100;background:rgba(11,31,51,.94);display:flex;align-items:center;justify-content:center;padding:20px}
.overlay-box{color:#fff;text-align:center;max-width:460px;padding:30px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:24px}
.overlay-box h2{color:#fcd34d;margin:12px 0;font-size:26px}
.overlay-box p{font-size:14px;line-height:1.7;margin-bottom:20px;color:#cbd5e1}

/* result */
.result-card{text-align:center}
.score-big{font-size:64px;font-weight:800;color:var(--accent);margin:14px 0 2px;letter-spacing:-.05em;font-variant-numeric:tabular-nums}
.score-big .of{font-size:20px;color:var(--muted);font-weight:400;letter-spacing:0}
.pct{color:var(--muted);margin-bottom:20px}
.res-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.review{text-align:left;margin-top:20px;max-height:440px;overflow:auto;border-top:1px solid var(--line);padding-top:16px}
.rev-item{padding:12px 0;border-bottom:1px solid var(--line);font-size:13.5px;line-height:1.6}
.rev-item .st{font-weight:800;letter-spacing:.02em}
.rev-item .st.b{color:var(--accent)}
.rev-item .st.s{color:var(--danger)}

/* admin */
#admin-link{position:fixed;bottom:8px;right:12px;z-index:60}
#admin-link a{display:inline-flex;align-items:center;justify-content:center;min-width:44px;min-height:44px;color:#475569;font-size:11px;font-weight:600;background:rgba(246,248,252,.9);border-radius:8px}
#admin-link a:hover{color:var(--accent);background:#fff}
table{width:100%;border-collapse:collapse;font-size:13px;margin-top:10px}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left}
th{color:var(--muted);font-weight:650;font-size:11px;text-transform:uppercase;letter-spacing:.06em}
td{color:var(--ink)}

/* status jawaban, riwayat, dan data admin */
.answer-status{display:flex;align-items:center;gap:12px;flex-wrap:wrap;min-height:44px;margin-top:10px}
.q-save{color:var(--muted);font-size:12.5px;line-height:1.5}
.q-save.error{color:#b91c1c;font-weight:700}
.history{margin:4px 0 12px}
.history-item{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:12px 16px;margin-top:8px;font-size:13px}
.history-item .btn{white-space:nowrap}
.table-scroll{overflow-x:auto;max-width:100%;-webkit-overflow-scrolling:touch}
.admin-payment{margin:3px;white-space:normal;text-align:left;border-radius:10px}

/* responsive */
@media (max-width:1020px){
  .hero{grid-template-columns:1fr;padding:34px;gap:24px}
  .auth-panel{justify-self:stretch;max-width:none}
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto}
  .dash-list{grid-template-columns:1fr}
  .exam-main{grid-template-columns:1fr;padding:14px}
  .grid-pane{display:block;position:static;max-height:280px;overflow:auto}
  .site-nav{display:none}
}
@media (max-width:640px){
  .view{padding:18px}
  .landing{padding:0 14px 44px}
  .site-header{padding:14px}
  .site-header .btn{display:none}
  .hero{padding:24px;border-radius:20px}
  .hero h1{font-size:2rem}
  .hero-metrics{gap:24px}
  .feature-grid{grid-template-columns:1fr}
  .price-card{padding:22px}
  .page-card{padding:22px}
  .q-pane{padding:20px}
  .exam-bar{padding:12px 14px;gap:8px}
  .exam-sub{display:none}
  .timer{font-size:14px;padding:5px 10px}
  .q-text{font-size:15px}
  .score-big{font-size:48px}
  .dash-top{padding:14px}
  .dash-user{font-size:12px}
  .pkg{flex-direction:column;align-items:flex-start}
  .pkg .btn{width:100%}
  .pkg-actions{width:100%}
  input[type=email],input[type=password],input[type=text],textarea,textarea.essay-input{font-size:16px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}
.pkg-actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center;justify-content:flex-end}