:root {
  color-scheme: light;
  --paper: #f1f4f6;
  --panel: #ffffff;
  --ink: #15222b;
  --muted: #5a6a75;
  --line: #d3dce1;
  --accent: #0e5a6b;
  --accent-ink: #ffffff;
  --good: #1b8a57;
  --wait: #a8690a;
  --bad: #b3372b;
  --idle: #7b8a94;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, p { margin: 0; }

.muted { color: var(--muted); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- Bilah atas ---------- */

.bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.bar strong { font-weight: 650; letter-spacing: 0.01em; }

.who { display: flex; align-items: center; gap: 14px; font-size: 14px; color: var(--muted); }

/* ---------- Tata letak ---------- */

main {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 24px 72px;
  display: grid;
  gap: 40px;
}

section > h2 {
  font-size: 18px;
  font-weight: 650;
  margin-bottom: 12px;
}

/* ---------- Status (bagian utama halaman) ---------- */

.status {
  display: flex;
  align-items: center;
  gap: 24px;
}

.dot {
  flex: none;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--idle);
  box-shadow: 0 0 0 8px color-mix(in srgb, var(--idle) 18%, transparent);
  transition: background 0.3s, box-shadow 0.3s;
}

.status[data-tone="good"] .dot { background: var(--good); box-shadow: 0 0 0 8px color-mix(in srgb, var(--good) 18%, transparent); }
.status[data-tone="wait"] .dot { background: var(--wait); box-shadow: 0 0 0 8px color-mix(in srgb, var(--wait) 18%, transparent); animation: breathe 1.8s ease-in-out infinite; }
.status[data-tone="bad"] .dot { background: var(--bad); box-shadow: 0 0 0 8px color-mix(in srgb, var(--bad) 18%, transparent); }

@keyframes breathe {
  50% { box-shadow: 0 0 0 14px color-mix(in srgb, var(--wait) 10%, transparent); }
}

#state {
  font-size: clamp(30px, 6vw, 44px);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: -0.02em;
}

#detail { margin-top: 6px; max-width: 52ch; }

/* ---------- QR ---------- */

.steps {
  margin: 0 0 20px;
  padding-left: 22px;
  max-width: 56ch;
  color: var(--muted);
}

.steps li { padding-left: 4px; margin-bottom: 4px; }

.viewfinder {
  --c: var(--ink);
  --t: 4px;
  --l: 32px;
  display: inline-block;
  padding: 28px;
  background:
    linear-gradient(var(--c), var(--c)) top left / var(--l) var(--t) no-repeat,
    linear-gradient(var(--c), var(--c)) top left / var(--t) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) top right / var(--l) var(--t) no-repeat,
    linear-gradient(var(--c), var(--c)) top right / var(--t) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / var(--l) var(--t) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom left / var(--t) var(--l) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / var(--l) var(--t) no-repeat,
    linear-gradient(var(--c), var(--c)) bottom right / var(--t) var(--l) no-repeat,
    var(--panel);
}

.viewfinder img {
  display: block;
  width: 264px;
  height: 264px;
  max-width: 100%;
  image-rendering: pixelated;
}

.note { margin-top: 12px; font-size: 14px; }

/* ---------- Tombol dan formulir ---------- */

.actions { display: flex; flex-wrap: wrap; gap: 10px; }

button {
  font: inherit;
  font-weight: 600;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--ink);
  cursor: pointer;
}

button:hover:not(:disabled) { border-color: var(--ink); }
button:disabled { opacity: 0.45; cursor: not-allowed; }

button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
button.primary:hover:not(:disabled) { background: #0b4a58; border-color: #0b4a58; }
button.danger { color: var(--bad); }

button.link {
  min-height: 0;
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

#msg { min-height: 1.5em; margin-top: 12px; font-size: 14px; color: var(--bad); }

label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 4px; }

input, select {
  font: inherit;
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
}

.field { margin-bottom: 16px; }

.err { min-height: 1.5em; margin-bottom: 12px; font-size: 14px; color: var(--bad); }

/* ---------- Daftar user ---------- */

.users { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 6px; margin-bottom: 20px; }
.users th, .users td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); font-size: 15px; }
.users tr:last-child td { border-bottom: 0; }
.users th { font-size: 14px; color: var(--muted); font-weight: 600; }
.users td:last-child { text-align: right; }

.form-row { display: grid; grid-template-columns: 1fr 1fr 130px auto; gap: 10px; align-items: end; }
.form-row .field { margin: 0; }

details { background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 14px 16px; }
details summary { cursor: pointer; font-weight: 650; }
details form { margin-top: 16px; max-width: 360px; }

/* ---------- Halaman masuk ---------- */

.auth { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-box { width: 100%; max-width: 380px; }
.auth-box h1 { font-size: 30px; font-weight: 700; letter-spacing: -0.02em; margin-bottom: 8px; }
.auth-box .lede { color: var(--muted); margin-bottom: 28px; }
.auth-box button { width: 100%; }

@media (max-width: 640px) {
  .bar { padding: 12px 16px; }
  main { padding: 28px 16px 56px; gap: 32px; }
  .status { gap: 16px; }
  .dot { width: 44px; height: 44px; }
  .form-row { grid-template-columns: 1fr; }
  .viewfinder { padding: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .dot { animation: none !important; transition: none; }
}