/* SERUBI base: tokens, fonts, reset, shared controls. */
@font-face {
  font-family: "Archivo";
  src: url("../fonts/archivo-var.woff2") format("woff2");
  font-weight: 100 900;
  font-stretch: 62% 125%;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-var.woff2") format("woff2");
  font-weight: 400 700;
  font-display: swap;
}

:root {
  color-scheme: light;
  --font-ui: "Archivo", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-tape: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;

  /* desk (page ground) */
  --desk: #e7ebf2;
  --desk-2: #dde3ec;
  --desk-ink: #14223b;
  --desk-muted: #4b576c;
  --desk-line: #c6cfdc;

  /* machine body */
  --machine: #0b2e66;
  --machine-hi: #154290;
  --machine-lo: #072153;
  --machine-ink: #eef3fb;
  --machine-muted: #aebfdb;
  --machine-line: rgba(174, 191, 219, .22);
  --key: #143c7c;
  --key-hi: #1c4a93;
  --key-edge: #061a40;
  --key-ink: #e9f0fc;

  /* gold (Bank Papua accent) */
  --gold: #f2c14e;
  --gold-hi: #f8d377;
  --gold-edge: #a87b14;
  --gold-ink: #241800;

  /* display */
  --display: #04132f;
  --display-ink: #ffe6a0;
  --display-dim: #c9b98c;
  --display-line: rgba(255, 230, 160, .16);

  /* paper */
  --paper: #fffef8;
  --paper-ink: #1a2130;
  --paper-muted: #545d70;
  --paper-rule: #c3c7cf;
  --paper-accent: #0b2e66;
  --paper-hilite: #fff2c4;
  --bar: #0b2e66;
  --bar-dep: #9aa3b3;

  /* states */
  --good: #0a7140;
  --bad: #b42318;
  --warn: #7a5000;
  --warn-bg: #fff3d6;
  --focus: #f2c14e;
  --focus-on-light: #0b57d0;

  --radius-s: 8px;
  --radius-m: 12px;
  --radius-l: 22px;
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --shadow-machine: 0 1px 0 rgba(255,255,255,.14) inset, 0 -2px 0 rgba(0,0,0,.25) inset, 0 28px 50px -24px rgba(4, 18, 48, .6), 0 3px 8px rgba(4, 18, 48, .18);
  --shadow-paper: 0 18px 30px -18px rgba(20, 34, 59, .45), 0 2px 4px rgba(20, 34, 59, .08);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --desk: #070c17;
    --desk-2: #0c1424;
    --desk-ink: #e4e9f3;
    --desk-muted: #9ba7bc;
    --desk-line: #1f2a40;
    --machine: #0c2a5c;
    --machine-hi: #12387a;
    --machine-lo: #071a40;
    --key: #11346d;
    --key-hi: #184083;
    --display: #020a1c;
    --paper: #ebe7db;
    --paper-ink: #191f2b;
    --paper-muted: #4c5464;
    --paper-rule: #b4b1a6;
    --paper-hilite: #f4e3ad;
    --shadow-machine: 0 1px 0 rgba(255,255,255,.08) inset, 0 -2px 0 rgba(0,0,0,.3) inset, 0 28px 50px -24px rgba(0,0,0,.8), 0 3px 8px rgba(0,0,0,.4);
    --shadow-paper: 0 18px 30px -18px rgba(0,0,0,.7), 0 2px 4px rgba(0,0,0,.3);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --desk: #070c17;
  --desk-2: #0c1424;
  --desk-ink: #e4e9f3;
  --desk-muted: #9ba7bc;
  --desk-line: #1f2a40;
  --machine: #0c2a5c;
  --machine-hi: #12387a;
  --machine-lo: #071a40;
  --key: #11346d;
  --key-hi: #184083;
  --display: #020a1c;
  --paper: #ebe7db;
  --paper-ink: #191f2b;
  --paper-muted: #4c5464;
  --paper-rule: #b4b1a6;
  --paper-hilite: #f4e3ad;
  --shadow-machine: 0 1px 0 rgba(255,255,255,.08) inset, 0 -2px 0 rgba(0,0,0,.3) inset, 0 28px 50px -24px rgba(0,0,0,.8), 0 3px 8px rgba(0,0,0,.4);
  --shadow-paper: 0 18px 30px -18px rgba(0,0,0,.7), 0 2px 4px rgba(0,0,0,.3);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--desk);
  color: var(--desk-ink);
  font-family: var(--font-ui);
  font-size: 1rem;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { line-height: 1.2; text-wrap: balance; margin: 0; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
a { color: inherit; text-underline-offset: .2em; }
::selection { background: var(--gold); color: var(--gold-ink); }
:focus-visible { outline: 3px solid var(--focus-on-light); outline-offset: 2px; border-radius: 4px; }
code { font-family: var(--font-tape); font-size: .9em; }

.icon { width: 1.15em; height: 1.15em; flex: none; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 50;
  background: var(--gold); color: var(--gold-ink); padding: 10px 14px; border-radius: var(--radius-s);
  font-weight: 700; text-decoration: none;
}
.skip-link:focus { top: 12px; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---- Bank Papua logo ---- */
.logo-wrap { display: inline-flex; line-height: 0; }
.logo { display: block; height: 36px; width: auto; max-width: 100%; }
.logo-auto .logo-white { display: none; }
:root[data-theme="dark"] .logo-auto .logo-color { display: none; }
:root[data-theme="dark"] .logo-auto .logo-white { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-auto .logo-color { display: none; }
  :root:not([data-theme="light"]) .logo-auto .logo-white { display: block; }
}
@media (max-width: 419px) { .topbar .logo { height: 29px; } .topbar .brand { gap: 4px 8px; } }

/* ---- top bar ---- */
.topbar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 12px;
  max-width: 1200px; margin: 0 auto;
  padding: max(14px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) 14px max(16px, env(safe-area-inset-left));
}
.brand { display: inline-flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; text-decoration: none; min-height: 44px; align-items: center; }
.brand-prog {
  font-weight: 700; font-size: .78rem; letter-spacing: .14em;
  padding: 3px 8px 2px; border-radius: 5px; background: var(--gold); color: var(--gold-ink);
}
.topbar-actions { display: flex; align-items: center; gap: 6px; margin-left: auto; }
@media (max-width: 479px) { .topbar-actions .text-btn span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } .topbar-actions .text-btn { padding: 0; } }
.icon-btn, .text-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-width: 44px; min-height: 44px; padding: 0 12px;
  border: 1px solid var(--desk-line); background: transparent; color: var(--desk-ink);
  border-radius: 10px; text-decoration: none; font-weight: 600; font-size: .92rem;
  transition: background-color .18s, border-color .18s;
}
.icon-btn { padding: 0; }
.icon-btn:hover, .text-btn:hover { background: var(--desk-2); border-color: var(--desk-muted); }
.icon-sun { display: none; }
:root[data-theme="dark"] .icon-sun { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: block; }
  :root:not([data-theme="light"]) .icon-moon { display: none; }
}

/* ---- keys (machine buttons) ---- */
.key {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 16px; border-radius: 10px;
  border: 0; box-shadow: inset 0 -3px 0 var(--key-edge);
  background: var(--key); color: var(--key-ink); font-weight: 650; font-size: .95rem;
  transition: background-color .15s, transform .08s, box-shadow .08s;
  -webkit-tap-highlight-color: transparent;
}
.key:hover { background: var(--key-hi); }
.key:active { transform: translateY(2px); box-shadow: inset 0 -1px 0 var(--key-edge); }
.key-gold { background: var(--gold); color: var(--gold-ink); box-shadow: inset 0 -3px 0 var(--gold-edge); }
.key-gold:active { box-shadow: inset 0 -1px 0 var(--gold-edge); }
.key-gold:hover { background: var(--gold-hi); }
.key:disabled { opacity: .55; cursor: not-allowed; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
}