/* =========================================================
   ipku — terminal / CLI minimal
   ========================================================= */

:root {
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --bg:      #0d0d0f;
  --bg-2:    #121216;
  --bg-3:    #191920;
  --text:    #d6d6da;
  --strong:  #f3f3f5;
  --dim:     #83838d;
  --faint:   #56565f;

  --line:    #232329;
  --line-2:  #34343d;

  --amber:   #e3b341;
  --green:   #7bc47f;
  --red:     #e06c75;
  --blue:    #d8a657;

  --wrap: 940px;
}

* { box-sizing: border-box; }

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-variant-ligatures: none;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, p { margin: 0; }
h1, h2 { font-weight: 700; letter-spacing: -.01em; line-height: 1.25; }

::selection { background: var(--amber); color: var(--bg); }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 22px; }
.wrap--read { max-width: 780px; }

.dim { color: var(--dim); }
.ps1 { color: var(--amber); user-select: none; }

.link {
  color: var(--amber);
  border-bottom: 1px solid color-mix(in srgb, var(--amber) 40%, transparent);
  transition: border-color .15s, color .15s;
}
.link:hover { border-bottom-color: var(--amber); }

.vh {
  position: absolute; width: 1px; height: 1px;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; overflow: hidden;
}

.skip {
  position: absolute; left: -999px; top: 0; z-index: 10;
  background: var(--amber); color: var(--bg); padding: 8px 14px;
}
.skip:focus { left: 0; }

/* caret (block cursor) */
.caret {
  display: inline-block; width: .52em; height: 1.02em;
  background: var(--amber); margin-left: .18em; vertical-align: -.14em;
  animation: blink 1.05s steps(1) infinite;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* =========================================================
   Top bar
   ========================================================= */
.bar {
  position: sticky; top: 0; z-index: 20;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}
.bar__in {
  display: flex; align-items: center; gap: 22px;
  height: 52px;
}
.logo { font-weight: 700; letter-spacing: -.02em; white-space: nowrap; }
.logo .caret { width: .42em; height: .95em; margin-left: .15em; }

.menu { display: flex; gap: 18px; overflow-x: auto; scrollbar-width: none; }
.menu::-webkit-scrollbar { display: none; }
.menu a {
  color: var(--dim); font-size: .88rem; white-space: nowrap;
  padding: 3px 0; border-bottom: 1px solid transparent;
  transition: color .15s, border-color .15s;
}
.menu a:hover { color: var(--strong); }
.menu a.is-active { color: var(--strong); border-bottom-color: var(--amber); }

/* =========================================================
   Hero
   ========================================================= */
.hero { padding-top: 58px; padding-bottom: 56px; }
.h1 { font-size: clamp(1.7rem, 4.6vw, 2.3rem); color: var(--strong); }
.lede { margin-top: 12px; max-width: 62ch; color: var(--dim); font-size: .95rem; }

/* terminal output block */
.out {
  margin-top: 28px;
  border: 1px solid var(--line);
  padding: 16px 18px;
}
.out__cmd { color: var(--dim); font-size: .9rem; margin-bottom: 12px; word-break: break-all; }

.rows { display: block; }
[hidden] { display: none !important; }
.row {
  display: grid; grid-template-columns: 12ch 1fr; gap: 2px 18px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
}
.row:last-child { border-bottom: 0; }
.row__k { color: var(--dim); font-size: .9rem; }
.row__v { color: var(--text); font-size: .9rem; word-break: break-word; min-width: 0; }
.row__v--strong { color: var(--strong); font-weight: 600; }
.rows--wide .row { grid-template-columns: 16ch 1fr; }

.mini {
  margin-left: 10px; color: var(--dim); font-size: .78rem;
  border: 1px solid var(--line-2); padding: 1px 7px;
  transition: color .15s, border-color .15s;
}
.mini:hover { color: var(--amber); border-color: var(--amber); }

/* command line */
.cmdline {
  margin-top: 22px;
  display: flex; align-items: center; gap: 12px;
  border: 1px solid var(--line-2); background: var(--bg-2);
  padding: 11px 14px;
  transition: border-color .15s;
}
.cmdline:focus-within { border-color: var(--amber); }
.cmdline__in {
  flex: 1; min-width: 0;
  background: none; border: 0; outline: none;
  font: inherit; font-size: .92rem; color: var(--text);
  caret-color: var(--amber); padding: 3px 0;
}
.cmdline__in::placeholder { color: var(--faint); }
.cmdline__go {
  flex: none; background: var(--amber); color: var(--bg);
  font-size: .82rem; font-weight: 600; padding: 7px 13px;
  transition: filter .15s;
}
.cmdline__go:hover { filter: brightness(1.1); }
.cmdline__go:disabled { opacity: .45; cursor: progress; }

.examples { margin-top: 14px; font-size: .84rem; color: var(--dim); }
.ex {
  color: var(--dim); margin-left: 12px;
  border-bottom: 1px dotted var(--line-2);
  transition: color .15s, border-color .15s;
}
.ex:hover { color: var(--amber); border-bottom-color: var(--amber); }

/* =========================================================
   Sections
   ========================================================= */
.section { border-top: 1px solid var(--line); padding: 52px 0; }

.sec { display: flex; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.sec__n { color: var(--faint); font-size: .82rem; }
.sec__t { font-size: 1rem; color: var(--strong); font-weight: 600; }
.sec__rule { flex: 1; height: 1px; background: var(--line); align-self: center; }
.sub { color: var(--dim); font-size: .92rem; max-width: 68ch; margin-bottom: 20px; }

.tabs { display: flex; gap: 6px; flex: none; }
.tab { color: var(--faint); font-size: .82rem; transition: color .15s; }
.tab:hover { color: var(--dim); }
.tab.is-active { color: var(--amber); }

.out__status { margin-top: 12px; font-size: .82rem; color: var(--dim); }
.out__status i {
  display: inline-block; width: 6px; height: 6px; border-radius: 50%;
  background: var(--dim); margin-right: 8px; vertical-align: 1px;
}
.out__status.is-ok i { background: var(--green); }
.out__status.is-err i { background: var(--red); }
.out__status.is-busy i { background: var(--amber); animation: blink 1s steps(1) infinite; }

.meta { margin-top: 14px; font-size: .82rem; color: var(--dim); }
.meta__sep { color: var(--faint); margin: 0 8px; }

/* JSON */
.json {
  margin: 0; padding: 16px; overflow-x: auto;
  background: var(--bg-2); border: 1px solid var(--line);
  font-size: .84rem; line-height: 1.65;
}
.tok-key { color: var(--amber); }
.tok-str { color: var(--green); }
.tok-num { color: var(--blue); }
.tok-null { color: var(--faint); }

/* tools list */
.ls { border-top: 1px solid var(--line); }
.ls__row {
  display: grid; grid-template-columns: 26ch 1fr; gap: 4px 18px;
  padding: 11px 0; border-bottom: 1px solid var(--line);
  transition: background .12s;
}
.ls__row:hover { background: var(--bg-2); }
.ls__path { color: var(--amber); font-size: .88rem; }
.ls__row:hover .ls__path { text-decoration: underline; text-underline-offset: 3px; }
.ls__desc { color: var(--dim); font-size: .88rem; }

/* FAQ */
.q { border-bottom: 1px solid var(--line); }
.q:first-of-type { border-top: 1px solid var(--line); }
.q__s {
  list-style: none; cursor: pointer; position: relative;
  padding: 14px 0 14px 30px; font-size: .92rem; color: var(--text);
  transition: color .15s;
}
.q__s::-webkit-details-marker { display: none; }
.q__s::before {
  content: "[+]"; position: absolute; left: 0; color: var(--amber); font-size: .82rem;
}
.q[open] .q__s::before { content: "[-]"; }
.q__s:hover { color: var(--strong); }
.q__a { padding: 0 0 16px 30px; color: var(--dim); font-size: .9rem; max-width: 72ch; }
.q__a code {
  color: var(--amber); background: var(--bg-2);
  border: 1px solid var(--line); padding: 1px 5px; font-size: .85em;
}

/* =========================================================
   Footer
   ========================================================= */
.foot { border-top: 1px solid var(--line); padding: 40px 0; }
.foot__meta { margin-top: 10px; color: var(--dim); font-size: .82rem; }

/* =========================================================
   Toast
   ========================================================= */
.toast {
  position: fixed; left: 50%; bottom: 26px; z-index: 40;
  transform: translate(-50%, 12px);
  background: var(--bg-3); border: 1px solid var(--line-2);
  color: var(--text); font-size: .84rem; padding: 9px 15px;
  opacity: 0; pointer-events: none;
  transition: opacity .18s, transform .18s;
}
.toast.is-show { opacity: 1; transform: translate(-50%, 0); }

/* =========================================================
   Halaman alat
   ========================================================= */
.crumb { font-size: .82rem; color: var(--faint); margin-bottom: 12px; }
.crumb a { color: var(--dim); }
.crumb a:hover { color: var(--amber); }
.crumb .sep { margin: 0 7px; }

/* form */
.stack { display: grid; gap: 13px; margin-top: 22px; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.field { display: grid; gap: 5px; flex: 1 1 200px; min-width: 0; }
.field__k { font-size: .78rem; color: var(--dim); }
.field--sm { flex: 0 1 170px; }
.input, .select {
  width: 100%; background: var(--bg-2); border: 1px solid var(--line-2);
  color: var(--text); font: inherit; font-size: .9rem; padding: 9px 11px;
  outline: none; caret-color: var(--amber); border-radius: 0;
}
.input:focus, .select:focus { border-color: var(--amber); }
.input::placeholder { color: var(--faint); }
.btn {
  flex: none; background: var(--amber); color: var(--bg);
  font-size: .84rem; font-weight: 600; padding: 10px 18px;
  transition: filter .15s;
}
.btn:hover { filter: brightness(1.1); }
.btn:disabled { opacity: .45; cursor: progress; }
.btn--ghost { background: none; border: 1px solid var(--line-2); color: var(--dim); }
.btn--ghost:hover { color: var(--amber); border-color: var(--amber); filter: none; }

/* tag kode status */
.tags { display: flex; flex-wrap: wrap; gap: 4px 8px; }
.tag { font-size: .82rem; }
.tag::before { content: "["; color: var(--faint); }
.tag::after { content: "]"; color: var(--faint); }

/* catatan */
.note {
  margin-top: 12px; font-size: .82rem; color: var(--dim);
  border-left: 2px solid var(--line-2); padding: 5px 0 5px 12px;
}
.note.is-ok { border-left-color: var(--green); color: var(--text); }
.note.is-warn { border-left-color: var(--amber); color: var(--text); }
.note.is-err { border-left-color: var(--red); color: var(--red); }

/* hasil per-resolver */
.res { border-top: 1px solid var(--line); }
.res__item { padding: 11px 0; border-bottom: 1px solid var(--line); }
.res__head { display: flex; gap: 10px; align-items: baseline; font-size: .86rem; }
.res__loc { color: var(--faint); font-size: .78rem; }
.res__state { margin-left: auto; font-size: .78rem; }
.res__state.is-ok { color: var(--green); }
.res__state.is-bad { color: var(--red); }
.res__state.is-warn { color: var(--amber); }
.res__ans {
  margin-top: 6px; font-size: .84rem; color: var(--dim);
  white-space: pre-wrap; word-break: break-all;
}

/* kalkulator */
.calc { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 26px; }
.calc .row { grid-template-columns: 15ch 1fr; }
.row__v.bin { word-break: normal; overflow-wrap: anywhere; }

/* glossary (kode status) */
.def { padding: 12px 0; border-bottom: 1px solid var(--line); }
.def:first-of-type { border-top: 1px solid var(--line); }
.def__k { color: var(--amber); font-size: .86rem; word-break: break-all; }
.def__v { color: var(--dim); font-size: .88rem; margin-top: 3px; max-width: 74ch; }

/* ringkasan hasil */
.summary { display: flex; flex-wrap: wrap; gap: 8px 18px; font-size: .84rem; color: var(--dim); }
.summary b { color: var(--text); font-weight: 600; }

.dot { color: var(--line-2); margin: 0 8px; }
.err { color: var(--red); }
.ok { color: var(--green); }
.warn { color: var(--amber); }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 760px) {
  .sec__rule { display: none; }
  .ls__row { grid-template-columns: 1fr; gap: 2px; }
  .ls__desc { padding-left: 0; }
  .calc { grid-template-columns: 1fr; }
  .calc .row { grid-template-columns: 12ch 1fr; }
}
@media (max-width: 620px) {
  html { font-size: 14.5px; }
  .bar__in {
    height: auto; flex-wrap: wrap; gap: 10px 14px;
    padding-top: 9px; padding-bottom: 9px;
  }
  .menu { order: 3; flex-basis: 100%; gap: 16px; }
  .hero { padding-top: 40px; padding-bottom: 40px; }
  .section { padding: 40px 0; }
  .row,
  .rows--wide .row { grid-template-columns: 1fr; gap: 0; padding: 9px 0; }
  .row__k { font-size: .78rem; }
  .cmdline { gap: 9px; padding: 10px 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .caret, .out__status.is-busy i { animation: none; }
  * { transition-duration: .001ms !important; }
}

/* scrollbar */
* { scrollbar-color: var(--line-2) transparent; scrollbar-width: thin; }
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--line-2); }
*::-webkit-scrollbar-track { background: transparent; }