/* POS middleware control plane.
   Direction: an operations ledger. The subject is sequences, shifts, time windows and limits,
   so numerics are set in a monospace face (receipt/POS heritage) and the signature element is a
   24-hour band that turns each preset's abstract windows into something you can read at a glance.
   Palette is ink + paper with a single amber "limit/caution" signal — deliberately not the
   terracotta/acid-green defaults. */

:root {
  --ink: #16202b;
  --ink-soft: #45566a;
  --paper: #f6f4ee;
  --paper-raised: #fffdf8;
  --line: #d9d3c6;
  --accent: #1f5f78;      /* deep teal-ink: structural, links, primary action */
  --signal: #c8791b;      /* amber: limits and caution */
  --ok: #2f7d55;
  --danger: #b23b3b;
  --mono: "SF Mono", "JetBrains Mono", "Consolas", ui-monospace, monospace;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}

.masthead {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  padding: 1.4rem clamp(1rem, 4vw, 3rem);
  border-bottom: 2px solid var(--ink);
}
.masthead h1 {
  margin: 0; font-size: 1.15rem; font-weight: 650; letter-spacing: -0.01em;
}
.masthead .sub {
  font-family: var(--mono); font-size: 0.72rem; color: var(--ink-soft);
  text-transform: uppercase; letter-spacing: 0.12em;
}
.masthead form { margin: 0; }

.wrap { max-width: 1000px; margin: 0 auto; padding: clamp(1rem, 4vw, 2.5rem); }

/* global settings bar */
.globals {
  display: flex; gap: 1.5rem; align-items: end; flex-wrap: wrap;
  padding: 1rem 1.2rem; margin-bottom: 1.6rem;
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: 6px;
}
.field { display: flex; flex-direction: column; gap: 0.3rem; }
.field label {
  font-family: var(--mono); font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink-soft);
}
input[type="text"], input[type="number"], input[type="time"], input[type="date"], input[type="password"] {
  font-family: var(--mono); font-size: 0.9rem;
  padding: 0.4rem 0.55rem; border: 1px solid var(--line); border-radius: 4px;
  background: #fff; color: var(--ink);
}
input:focus-visible, button:focus-visible, .day:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 1px;
}

/* preset card */
.preset {
  background: var(--paper-raised); border: 1px solid var(--line); border-radius: 8px;
  padding: 1.2rem 1.3rem 1.4rem; margin-bottom: 1.3rem;
}
.preset-head { display: flex; gap: 0.8rem; align-items: center; margin-bottom: 0.9rem; }
.preset-head input.name {
  flex: 1; font-family: var(--sans); font-size: 1.02rem; font-weight: 600;
  border: none; border-bottom: 2px solid var(--line); border-radius: 0;
  padding: 0.3rem 0.1rem; background: transparent;
}
.preset-head input.name:focus { border-bottom-color: var(--accent); outline: none; }

.eyebrow {
  font-family: var(--mono); font-size: 0.66rem; text-transform: uppercase;
  letter-spacing: 0.13em; color: var(--ink-soft); margin: 1rem 0 0.5rem;
}

/* day toggles */
.days { display: flex; gap: 0.35rem; flex-wrap: wrap; }
.day {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.05em;
  padding: 0.35rem 0.6rem; border: 1px solid var(--line); border-radius: 4px;
  background: #fff; color: var(--ink-soft); cursor: pointer; user-select: none;
  text-transform: uppercase;
}
.day[aria-pressed="true"] {
  background: var(--ink); color: var(--paper); border-color: var(--ink);
}

/* 24h band — the signature element */
.band {
  position: relative; height: 46px; margin: 0.4rem 0 0.2rem;
  border: 1px solid var(--line); border-radius: 4px; background:
    repeating-linear-gradient(90deg, transparent, transparent calc(100%/24 - 1px),
      var(--line) calc(100%/24 - 1px), var(--line) calc(100%/24));
  overflow: hidden;
}
.band .seg {
  position: absolute; top: 0; bottom: 0;
  background: color-mix(in srgb, var(--signal) 22%, transparent);
  border-left: 2px solid var(--signal); border-right: 2px solid var(--signal);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 0.7rem; color: #6a3d05; overflow: hidden;
}
.band-axis {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 0.6rem; color: var(--ink-soft); margin-top: 2px;
}

/* window rows */
.windows { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 0.6rem; }
.window-row { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; }
.window-row .to { font-family: var(--mono); color: var(--ink-soft); font-size: 0.8rem; }
.window-row .limit-wrap { display: flex; align-items: center; gap: 0.35rem; }
.window-row .limit-wrap::before {
  content: "≤"; font-family: var(--mono); color: var(--signal); font-weight: 700;
}

button {
  font-family: var(--sans); font-size: 0.85rem; font-weight: 550;
  padding: 0.45rem 0.85rem; border-radius: 5px; border: 1px solid var(--ink);
  background: var(--ink); color: var(--paper); cursor: pointer;
}
button.ghost { background: transparent; color: var(--ink); }
button.small { padding: 0.25rem 0.55rem; font-size: 0.78rem; }
button.danger { border-color: var(--danger); color: var(--danger); background: transparent; }
button:hover { filter: brightness(1.08); }

.actions { display: flex; gap: 0.7rem; align-items: center; margin-top: 1.5rem; }
.status { font-family: var(--mono); font-size: 0.8rem; }
.status.ok { color: var(--ok); }
.status.err { color: var(--danger); }

/* login */
.login { max-width: 340px; margin: 12vh auto; text-align: center; }
.login p { color: var(--ink-soft); font-size: 0.9rem; }
.login form { display: flex; flex-direction: column; gap: 0.8rem; margin-top: 1rem; }

@media (prefers-reduced-motion: no-preference) {
  button, .day { transition: filter .12s ease, background .12s ease, color .12s ease; }
}