:root {
  --bg: #fafaf8;
  --surface: #ffffff;
  --ink: #101623;
  --muted: #5b6472;
  --hairline: #dededa;
  --accent: #0c6478;
  --accent-dark: #0a5060;
  --accent-soft: #e3eef1;
  --btn-bg: #0c6478;
  --btn-bg-hover: #0a5060;
  --btn-text: #ffffff;
  --danger: #b23842;
  --radius-s: 6px;
  --radius-m: 12px;
}

[data-theme="dark"] {
  --bg: #0f1420;
  --surface: #161d2b;
  --ink: #e7ebf1;
  --muted: #98a2b3;
  --hairline: #273043;
  --accent: #4db3c9;
  --accent-dark: #6fc6d9;
  --accent-soft: #11303b;
  --btn-bg: #2b93ab;
  --btn-bg-hover: #4db3c9;
  --btn-text: #06181e;
  --danger: #ff8a93;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* ---------- nav ---------- */
nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0;
}
.wordmark {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-weight: 700; font-size: 20px; letter-spacing: -0.02em;
  color: var(--ink); text-decoration: none;
}
.wordmark span { color: var(--accent); }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: var(--muted); text-decoration: none; font-size: 15px; }
.nav-links a:hover { color: var(--ink); }
.nav-links a.pill {
  color: var(--accent); border: 1px solid var(--hairline);
  padding: 6px 14px; border-radius: 99px;
}
.nav-links a.pill:hover { border-color: var(--accent); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 56px; max-width: 720px; }
h1 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: clamp(34px, 5.5vw, 52px);
  line-height: 1.12; letter-spacing: -0.03em;
  margin: 0 0 20px; font-weight: 700;
}
.sub { font-size: 19px; color: var(--muted); margin: 0 0 32px; }

.btn {
  display: inline-block; background: var(--btn-bg); color: var(--btn-text);
  font-weight: 600; font-size: 16px; text-decoration: none;
  padding: 13px 28px; border-radius: 8px; border: none; cursor: pointer;
  font-family: inherit;
}
.btn:hover { background: var(--btn-bg-hover); }
.btn:disabled { opacity: 0.6; cursor: wait; }

/* ---------- sections ---------- */
section { padding: 56px 0; border-top: 1px solid var(--hairline); }
h2 {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-size: 26px; letter-spacing: -0.02em; margin: 0 0 32px; font-weight: 700;
}

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card {
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius-m); padding: 24px;
  font-size: 15.5px; color: var(--ink);
}
.card .num {
  font-family: "Space Grotesk", sans-serif; font-feature-settings: "tnum";
  font-weight: 700; color: var(--accent); font-size: 15px;
  display: block; margin-bottom: 10px;
}
.card strong { display: block; margin-bottom: 6px; }
.card p { margin: 0; color: var(--muted); }

/* ---------- trust ---------- */
.trust {
  background: var(--surface); border: 1px solid var(--hairline);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-m); padding: 32px;
}
.trust h2 { margin-bottom: 12px; }
.trust p { margin: 0; color: var(--muted); font-size: 17px; max-width: 640px; }

/* ---------- faq ---------- */
details {
  border-bottom: 1px solid var(--hairline); padding: 4px 0;
}
summary {
  cursor: pointer; font-weight: 600; padding: 14px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--muted); font-size: 20px; font-weight: 400; }
details[open] summary::after { content: "–"; }
details p { margin: 0 0 16px; color: var(--muted); max-width: 640px; }

/* ---------- closing cta ---------- */
.closing { text-align: center; }
.closing h2 { margin-bottom: 24px; }

footer {
  border-top: 1px solid var(--hairline);
  padding: 28px 0; color: var(--muted); font-size: 14px;
}

/* ---------- form pages ---------- */
.form-page { max-width: 480px; margin: 0 auto; padding: 64px 24px; }
.form-page h1 { font-size: clamp(28px, 5vw, 38px); }
.form-page .sub { font-size: 17px; }

.price {
  font-family: "Space Grotesk", "Inter", sans-serif;
  font-feature-settings: "tnum";
  font-size: clamp(32px, 6vw, 44px); font-weight: 700; letter-spacing: -0.02em;
  margin: 0 0 8px;
}
.price small { font-size: 0.45em; font-weight: 600; color: var(--muted); letter-spacing: 0; }

form { margin-top: 28px; }
label { font-weight: 600; font-size: 15px; display: block; margin-bottom: 8px; }
input[type="email"], input[type="text"] {
  width: 100%; padding: 12px 14px; font-size: 16px; font-family: inherit;
  border: 1px solid var(--hairline); border-radius: 8px; background: var(--surface);
  color: var(--ink);
}
input:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: transparent; }

.choices { margin: 20px 0 24px; }
.choice {
  display: flex; gap: 10px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: 8px; padding: 12px 14px; margin-bottom: 8px;
  cursor: pointer; font-size: 15px;
}
.choice:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.choice input { margin-top: 3px; accent-color: var(--accent); }
#lainnya-text { margin-top: 8px; display: none; }

.hp { position: absolute; left: -9999px; opacity: 0; }

.msg { margin-top: 16px; font-size: 15px; }
.msg.ok { color: var(--accent-dark); font-weight: 600; }
.msg.err { color: var(--danger); }

/* ---------- toggles ---------- */
.controls { display: flex; gap: 12px; align-items: center; }
.lang-toggle {
  color: var(--muted); text-decoration: none; font-size: 13px; font-weight: 600;
  border: 1px solid var(--hairline); border-radius: 99px; padding: 4px 10px;
  letter-spacing: 0.04em;
}
.lang-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle {
  background: none; border: 1px solid var(--hairline); border-radius: 99px;
  color: var(--muted); font-size: 14px; cursor: pointer; font-family: inherit;
  width: 30px; height: 30px; line-height: 1; padding: 0;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.form-head { display: flex; justify-content: space-between; align-items: center; }

.back { display: inline-block; margin-top: 32px; color: var(--muted); font-size: 14px; text-decoration: none; }
.back:hover { color: var(--ink); }

/* ---------- hero mock ---------- */
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px;
  align-items: center; padding: 64px 0 56px;
}
.hero-grid .hero { padding: 0; max-width: none; }

.mock {
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius-m); overflow: hidden;
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.04);
}
.mock-bar {
  display: flex; align-items: center; gap: 6px;
  padding: 10px 14px; border-bottom: 1px solid var(--hairline);
}
.mock-bar i { width: 8px; height: 8px; border-radius: 99px; background: var(--hairline); }
.mock-bar span { margin-left: 8px; font-size: 12px; color: var(--muted); }
.mock-body { padding: 18px 18px 10px; }
.mock-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 4px; }
.mock-num {
  font-family: "Space Grotesk", sans-serif; font-feature-settings: "tnum";
  font-weight: 700; font-size: 22px; letter-spacing: -0.01em;
}
.mock-label { font-size: 12px; color: var(--muted); }
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--accent-soft); color: var(--accent-dark);
  font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 99px;
}
.chip svg { width: 11px; height: 11px; }
.mock svg.chart { display: block; width: 100%; height: auto; }
.chart text { font-family: "Inter", sans-serif; font-size: 11px; }

/* ---------- card icons ---------- */
.card .icon {
  width: 26px; height: 26px; color: var(--accent);
  display: block; margin-bottom: 12px;
}

/* ---------- trust provenance ---------- */
.prov {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-top: 20px; padding: 14px 16px;
  background: var(--bg); border: 1px solid var(--hairline); border-radius: var(--radius-s);
}
.prov-num {
  font-family: "Space Grotesk", sans-serif; font-feature-settings: "tnum";
  font-weight: 700; font-size: 17px;
}
.prov-src { font-size: 13px; color: var(--muted); }

/* ---------- interaction polish ---------- */
a, button, .choice, summary { transition: color .15s, background-color .15s, border-color .15s; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

@media (max-width: 720px) {
  .cards { grid-template-columns: 1fr; }
  .hero { padding: 48px 0 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; padding: 40px 0 40px; }
  .nav-links { gap: 14px; }
}