/* kitadata.id — stylesheet tunggal, tanpa framework, mobile-first.
   Target: < 12 KB, system font, nol font eksternal, nol gambar eksternal. */
:root {
  --bg: #f5f7fa; --surface: #ffffff; --text: #16233a; --muted: #55637a;
  --brand: #0b5bd3; --brand-ink: #ffffff; --brand-soft: #e8f0fd;
  --border: #dde3ec; --ok: #0e7a3c; --ok-bg: #e7f6ec;
  --err: #b3261e; --err-bg: #fdecea; --warn: #8a5a00; --warn-bg: #fff4dc;
  --radius: 12px; --shadow: 0 1px 3px rgba(16,35,74,.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1117; --surface: #161d28; --text: #e8ecf4; --muted: #9aa6ba;
    --brand: #6ea1f5; --brand-ink: #0d1117; --brand-soft: #14233d;
    --border: #283143; --ok: #57c98a; --ok-bg: #10291b;
    --err: #ff8a80; --err-bg: #331315; --warn: #e8b64c; --warn-bg: #2c2208;
    --shadow: 0 1px 3px rgba(0,0,0,.4);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; height: auto; }
.container { max-width: 1060px; margin: 0 auto; padding: 0 16px; }

/* Header */
.site-header { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10; }
.site-header .container { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; padding-top: 10px; padding-bottom: 10px; }
.logo { font-weight: 800; font-size: 1.15rem; color: var(--text); letter-spacing: -.02em; }
.logo span { color: var(--brand); }
.site-nav { display: flex; gap: 2px; flex-wrap: wrap; margin-left: auto; }
.site-nav a { padding: 6px 10px; border-radius: 8px; color: var(--muted); font-size: .92rem; font-weight: 600; }
.site-nav a:hover { background: var(--brand-soft); color: var(--brand); text-decoration: none; }

/* Hero */
.hero { padding: 44px 0 28px; }
.hero h1 { font-size: clamp(1.6rem, 4.5vw, 2.3rem); line-height: 1.25; margin: 0 0 12px; letter-spacing: -.02em; }
.hero p { color: var(--muted); font-size: 1.05rem; max-width: 640px; margin: 0; }
.badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.badge { background: var(--brand-soft); color: var(--brand); border-radius: 999px; padding: 4px 12px; font-size: .82rem; font-weight: 700; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; margin: 24px 0; }
.tool-card { display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); color: var(--text); }
.tool-card:hover { border-color: var(--brand); text-decoration: none; transform: translateY(-2px); transition: all .15s ease; }
.tool-card .ico { font-size: 1.6rem; }
.tool-card h2 { font-size: 1.05rem; margin: 8px 0 4px; }
.tool-card p { margin: 0; color: var(--muted); font-size: .9rem; }

/* Sections */
section { margin: 34px 0; }
h2.section-title { font-size: 1.3rem; letter-spacing: -.01em; margin: 0 0 12px; }
.lead { color: var(--muted); }

/* Form & hasil tool */
.tool-panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
label { display: block; font-weight: 700; margin-bottom: 6px; font-size: .95rem; }
input[type="text"], select {
  width: 100%; padding: 12px 14px; font-size: 1rem; border: 1.5px solid var(--border);
  border-radius: 10px; background: var(--bg); color: var(--text);
}
input[type="text"]:focus, select:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
.form-row { display: flex; gap: 10px; flex-wrap: wrap; }
.form-row .grow { flex: 1 1 220px; }
button.btn, .btn {
  display: inline-block; border: 0; cursor: pointer; border-radius: 10px;
  background: var(--brand); color: var(--brand-ink); font: inherit; font-weight: 700;
  padding: 12px 22px; font-size: .98rem;
}
button.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: var(--brand-soft); color: var(--brand); }
.result { margin-top: 18px; }
.result .box { border-radius: 10px; padding: 14px 16px; margin-bottom: 12px; }
.result .box.ok { background: var(--ok-bg); border: 1px solid var(--ok); }
.result .box.err { background: var(--err-bg); border: 1px solid var(--err); }
.result .box.warn { background: var(--warn-bg); border: 1px solid var(--warn); }
.result h3 { margin: 0 0 8px; font-size: 1rem; }
.result ul { margin: 0; padding-left: 20px; }
.result table { width: 100%; border-collapse: collapse; margin-top: 6px; }
.result table th, .result table td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--border); vertical-align: top; font-size: .93rem; }
.result table th { width: 180px; color: var(--muted); font-weight: 600; }

/* Tabel umum */
.table-wrap { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.table-wrap table { border-collapse: collapse; width: 100%; font-size: .93rem; }
.table-wrap th, .table-wrap td { padding: 9px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.table-wrap th { background: var(--brand-soft); color: var(--brand); font-size: .85rem; text-transform: uppercase; letter-spacing: .02em; }
.table-wrap tr:last-child td { border-bottom: 0; }

/* Breadcrumb & list halaman */
.crumbs { font-size: .85rem; color: var(--muted); margin: 18px 0 4px; }
.crumbs a { color: var(--muted); }
.link-list { columns: 2; column-gap: 24px; margin: 12px 0 0; padding: 0; list-style: none; }
.link-list li { margin-bottom: 6px; break-inside: avoid; }
@media (max-width: 600px) { .link-list { columns: 1; } }

/* Note / privacy */
.note { background: var(--brand-soft); border-radius: 10px; padding: 12px 16px; font-size: .88rem; color: var(--text); }
.note strong { color: var(--brand); }

/* Footer */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: 48px; padding: 26px 0 34px; font-size: .88rem; color: var(--muted); }
.site-footer .cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; }
.site-footer h3 { font-size: .9rem; margin: 0 0 8px; color: var(--text); }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 5px; }
.site-footer .legal { margin-top: 20px; font-size: .8rem; }