/* Tender design system: paper, ink and a till receipt.
   Shared by the website (/) and the dashboard (/app). */

@import url("https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap");

:root {
  --paper: #f4f1ea;
  --paper-2: #ebe7dc;
  --card: #fbfaf6;
  --receipt: #fffdf8;
  --ink: #15140f;
  --ink-2: #3a382f;
  --muted: #6e6a5e;
  --faint: #a19c8d;
  --line: #e2ddd0;
  --line-2: #d3cdbd;

  --green: #1d6b4f;
  --green-bg: #e3efe8;
  --red: #b3372b;
  --red-bg: #f6e4e0;
  --amber: #9a6400;
  --amber-bg: #f5ead3;
  --blue: #2159a8;
  --blue-bg: #e2eaf6;

  --btn-ink: #15140f;
  --btn-text: #f4f1ea;

  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --r-sm: 8px;
  --r: 14px;
  --r-lg: 22px;
  --shadow: 0 1px 0 rgba(21, 20, 15, 0.04), 0 8px 24px -12px rgba(21, 20, 15, 0.18);
  --shadow-lg: 0 2px 0 rgba(21, 20, 15, 0.04), 0 30px 60px -30px rgba(21, 20, 15, 0.35);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #100f0c;
    --paper-2: #17160f;
    --card: #1a1913;
    --receipt: #201f18;
    --ink: #eeebe2;
    --ink-2: #cfcbbf;
    --muted: #9b9687;
    --faint: #6c685c;
    --line: #2b2a22;
    --line-2: #3a382e;
    --green: #5fd3a2;
    --green-bg: #13291f;
    --red: #ff8a7a;
    --red-bg: #321a16;
    --amber: #f0b64a;
    --amber-bg: #2e2413;
    --blue: #8db8ff;
    --blue-bg: #17213a;
    --btn-ink: #eeebe2;
    --btn-text: #100f0c;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.3), 0 10px 30px -14px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 2px 0 rgba(0, 0, 0, 0.3), 0 40px 80px -30px rgba(0, 0, 0, 0.8);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #100f0c;
  --paper-2: #17160f;
  --card: #1a1913;
  --receipt: #201f18;
  --ink: #eeebe2;
  --ink-2: #cfcbbf;
  --muted: #9b9687;
  --faint: #6c685c;
  --line: #2b2a22;
  --line-2: #3a382e;
  --green: #5fd3a2;
  --green-bg: #13291f;
  --red: #ff8a7a;
  --red-bg: #321a16;
  --amber: #f0b64a;
  --amber-bg: #2e2413;
  --blue: #8db8ff;
  --blue-bg: #17213a;
  --btn-ink: #eeebe2;
  --btn-text: #100f0c;
  --shadow: 0 1px 0 rgba(0, 0, 0, 0.3), 0 10px 30px -14px rgba(0, 0, 0, 0.7);
  --shadow-lg: 0 2px 0 rgba(0, 0, 0, 0.3), 0 40px 80px -30px rgba(0, 0, 0, 0.8);
  color-scheme: dark;
}

/* ---------------------------------------------------------------- base -- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
/* faint paper grain, painted on the page itself (no fixed overlay to repaint on scroll) */
body {
  background-image: radial-gradient(color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 1px);
  background-size: 3px 3px;
}
a { color: inherit; }
img, svg { display: block; }
::selection { background: var(--green); color: var(--paper); }
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 6px; }

.mono { font-family: var(--mono); font-feature-settings: "zero" 1; }
.serif { font-family: var(--serif); font-weight: 400; }
.muted { color: var(--muted); }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .wrap { padding: 0 16px; } }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ------------------------------------------------------------- buttons -- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 20px;
  border-radius: 999px; border: 1px solid transparent;
  font: 600 14px/1 var(--sans); letter-spacing: -0.005em;
  text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--btn-ink); color: var(--btn-text); box-shadow: var(--shadow); }
.btn-primary:hover { box-shadow: var(--shadow-lg); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--card); border-color: var(--ink-2); }
.btn-danger { background: var(--red); color: #fff; }
.btn-sm { height: 34px; padding: 0 14px; font-size: 13px; }
.btn[disabled] { opacity: 0.45; pointer-events: none; }
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

.icon-btn {
  width: 36px; height: 36px; display: inline-grid; place-items: center;
  border-radius: 999px; border: 1px solid var(--line-2); background: transparent; color: var(--ink);
  cursor: pointer; transition: background 0.15s ease;
}
.icon-btn:hover { background: var(--card); }
.icon-btn svg { width: 16px; height: 16px; }

/* --------------------------------------------------------------- pills -- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  height: 28px; padding: 0 11px; border-radius: 999px;
  background: var(--card); border: 1px solid var(--line);
  font-size: 12.5px; color: var(--muted); white-space: nowrap;
}
.pill b { color: var(--ink); font-weight: 600; }
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.pill.ok .dot { background: var(--green); box-shadow: 0 0 0 3px var(--green-bg); }
.pill.warn { color: var(--amber); border-color: color-mix(in srgb, var(--amber) 40%, transparent); background: var(--amber-bg); }
.pill.warn .dot { background: var(--amber); }
.pill.danger { color: var(--red); border-color: color-mix(in srgb, var(--red) 45%, transparent); background: var(--red-bg); font-weight: 600; }
.pill.danger .dot { background: var(--red); }

.tag {
  display: inline-flex; align-items: center; gap: 5px;
  font: 600 11px/1 var(--sans); letter-spacing: 0.06em; text-transform: uppercase;
  padding: 5px 8px; border-radius: 6px;
}
.tag.green { color: var(--green); background: var(--green-bg); }
.tag.red { color: var(--red); background: var(--red-bg); }
.tag.amber { color: var(--amber); background: var(--amber-bg); }
.tag.blue { color: var(--blue); background: var(--blue-bg); }
.tag.plain { color: var(--muted); background: var(--paper-2); }

.eyebrow {
  font: 600 11.5px/1 var(--sans); letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted);
}

/* --------------------------------------------------------------- cards -- */
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  box-shadow: var(--shadow);
}
.card-h {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; border-bottom: 1px solid var(--line);
}
.card-h h2, .card-h h3 { margin: 0; font: 600 13px/1.2 var(--sans); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.card-b { padding: 18px; }

/* ------------------------------------------------------------- receipt -- */
.receipt {
  position: relative;
  background: var(--receipt);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
  padding: 26px 24px;
  box-shadow: var(--shadow-lg);
  --tooth: 9px;
  -webkit-mask:
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    conic-gradient(from 135deg at top, #0000, #000 1deg 89deg, #0000 90deg) top / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    linear-gradient(#000 0 0) center / 100% calc(100% - var(--tooth) * 2) no-repeat;
  mask:
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 89deg, #0000 90deg) bottom / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    conic-gradient(from 135deg at top, #0000, #000 1deg 89deg, #0000 90deg) top / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    linear-gradient(#000 0 0) center / 100% calc(100% - var(--tooth) * 2) no-repeat;
}
.receipt .r-head { text-align: center; padding-bottom: 14px; border-bottom: 1px dashed var(--line-2); margin-bottom: 12px; }
.receipt .r-title { font: 400 28px/1 var(--serif); letter-spacing: 0; }
.receipt .r-sub { color: var(--muted); font-size: 11.5px; margin-top: 6px; }
.receipt .r-row { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 7px 0; align-items: baseline; }
.receipt .r-row .r-why { grid-column: 1 / -1; font-family: var(--sans); font-size: 12.5px; color: var(--muted); line-height: 1.45; margin-top: -2px; }
.receipt .r-row.void { color: var(--red); }
.receipt .r-row.void .r-item { text-decoration: line-through; text-decoration-thickness: 1px; }
.receipt .r-row.skip { color: var(--faint); }
.receipt .r-sep { border: 0; border-top: 1px dashed var(--line-2); margin: 10px 0; }
.receipt .r-total { font-weight: 600; font-size: 15px; }
.receipt .r-foot { text-align: center; color: var(--muted); font-size: 11px; margin-top: 14px; letter-spacing: 0.04em; }
.receipt a { color: var(--blue); text-decoration: none; }
.receipt a:hover { text-decoration: underline; }
.barcode {
  height: 34px; margin: 14px auto 0; width: 70%;
  background: repeating-linear-gradient(90deg, var(--ink) 0 2px, transparent 2px 4px, var(--ink) 4px 5px, transparent 5px 8px, var(--ink) 8px 11px, transparent 11px 12px);
  opacity: 0.85;
}

/* ------------------------------------------------------------ nav bar -- */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(1.4) blur(12px);
  -webkit-backdrop-filter: saturate(1.4) blur(12px);
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.nav-in { display: flex; align-items: center; gap: 18px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font: 400 26px/1 var(--serif); letter-spacing: -0.01em; }
.brand img { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 4px; margin-left: 12px; }
.nav-links a { text-decoration: none; color: var(--muted); font-size: 14px; padding: 8px 12px; border-radius: 999px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--ink); background: var(--card); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
@media (max-width: 760px) { .nav-links { display: none; } }

/* ------------------------------------------------------------- toasts -- */
.toasts { position: fixed; right: 16px; bottom: 16px; z-index: 50; display: grid; gap: 8px; max-width: min(420px, calc(100vw - 32px)); }
.toast {
  background: var(--btn-ink); color: var(--btn-text); padding: 12px 16px; border-radius: 12px;
  font-size: 13.5px; box-shadow: var(--shadow-lg); animation: toast-in 0.25s ease;
}
.toast.err { background: var(--red); color: #fff; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ------------------------------------------------------------- motion -- */
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }
@keyframes pulse { 50% { opacity: 0.35; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes print { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 0 0 0); } }
.spinner { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line-2); border-top-color: var(--ink); animation: spin 0.8s linear infinite; display: inline-block; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}