:root {
  --bg: #f3f6f6;
  --surface: #ffffff;
  --surface-2: #eaf0f0;
  --text: #14201f;
  --muted: #566665;
  --border: #d5dfdf;
  --primary: #0f5f63;
  --primary-hover: #0b4a4d;
  --on-primary: #ffffff;
  --primary-soft: #dcefef;
  --danger: #b42318;
  --danger-soft: #fdeceb;
  --ok: #1a7f4b;
  --ok-soft: #e3f5ea;
  --warn: #9a5b00;
  --warn-soft: #fff3dc;
  --shadow: 0 1px 2px rgba(16, 40, 40, .06), 0 4px 14px rgba(16, 40, 40, .06);
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0d1414;
    --surface: #162020;
    --surface-2: #1d2a2a;
    --text: #e6eded;
    --muted: #9bb0af;
    --border: #2b3b3b;
    --primary: #5fc9ce;
    --primary-hover: #7bd8dc;
    --on-primary: #08201f;
    --primary-soft: #17383a;
    --danger: #ff8a80;
    --danger-soft: #3a1f1d;
    --ok: #58d38e;
    --ok-soft: #14301f;
    --warn: #f5b95a;
    --warn-soft: #36290f;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 14px rgba(0, 0, 0, .35);
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 var(--font);
  -webkit-tap-highlight-color: transparent;
}
h1, h2, h3 { margin: 0; line-height: 1.2; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 48px; padding: 0 1.25rem; border-radius: 12px;
  border: 1px solid var(--border); background: var(--surface); color: var(--text);
  font-weight: 600; cursor: pointer; text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-ghost { background: transparent; }
.btn-sm { min-height: 36px; padding: 0 .85rem; font-size: .9rem; border-radius: 9px; }

.field { display: grid; gap: .4rem; }
.field label, .label { font-weight: 600; font-size: .95rem; }
.input {
  width: 100%; min-height: 48px; padding: .6rem .85rem; border-radius: 12px;
  border: 1.5px solid var(--border); background: var(--surface); outline: none;
}
.input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
textarea.input { min-height: 120px; resize: vertical; }
.hint { color: var(--muted); font-size: .88rem; }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 1rem;
}
.error-box {
  background: var(--danger-soft); color: var(--danger); border: 1px solid currentColor;
  border-radius: 12px; padding: .75rem .9rem; font-size: .95rem;
}
.chip {
  display: inline-block; padding: .15rem .6rem; border-radius: 999px; font-size: .8rem; font-weight: 600;
  background: var(--primary-soft); color: var(--primary);
}
.chip.ok { background: var(--ok-soft); color: var(--ok); }
.chip.warn { background: var(--warn-soft); color: var(--warn); }
.chip.danger { background: var(--danger-soft); color: var(--danger); }