/* LambdaHabits — dark mobile-first styles (house pattern, violet accent). */
:root {
  --bg: #0b1220;
  --card: #111a2e;
  --card-2: #0e1626;
  --text: #e8eefc;
  --muted: #93a1bd;
  --accent: #7c5cff;      /* lambda violet */
  --accent-2: #4dd0b1;    /* teal for stats */
  --border: #22304d;
  --danger: #ff6b6b;
  --ok: #3ecf8e;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  min-height: 100vh;
}

.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 8px; top: 8px; background: var(--card); padding: 6px 10px; border-radius: 8px; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: rgba(11, 18, 32, .92); backdrop-filter: blur(6px);
  z-index: 5;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand img { display: block; }
.brand strong { display: block; font-size: 17px; }
.tagline { color: var(--muted); font-size: 12px; }

select, input[type="text"], input[type="search"] {
  background: var(--card-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; font-size: 15px;
}
input[type="text"]:focus, input[type="search"]:focus { outline: none; border-color: var(--accent); }

main { max-width: 760px; margin: 0 auto; padding: 14px 14px 40px; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-top: 14px;
}

.hero h1 { margin: 8px 0 6px; font-size: 24px; line-height: 1.25; }
.hero p { margin: 0; color: var(--muted); font-size: 15px; }

.badge-lang {
  display: inline-block; font-size: 12px; letter-spacing: .4px;
  color: #fff; background: var(--accent);
  padding: 3px 10px; border-radius: 999px; font-weight: 600;
}

.section { margin: 0 0 10px; font-size: 16px; }

.grid { display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: end; }
.field label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.field input[type="text"] { width: 100%; }
.field-color input[type="color"] {
  width: 52px; height: 40px; padding: 2px; border-radius: 10px;
  background: var(--card-2); border: 1px solid var(--border); cursor: pointer;
}

.btn {
  appearance: none; cursor: pointer;
  background: var(--card-2); color: var(--text);
  border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 14px; font-size: 15px;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: #fff; border-color: transparent; font-weight: 600; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { color: var(--danger); border-color: var(--danger); background: transparent; }
.btn[hidden] { display: none; }
.btn-icon { padding: 8px 11px; font-size: 17px; line-height: 1; }

#add-form .btn-primary { margin-top: 10px; }
.error-inline { color: var(--danger); font-size: 13px; margin-left: 10px; }

.search-row { display: flex; gap: 8px; }
.search-row input { flex: 1; }

.stats { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.stat {
  flex: 1; min-width: 90px;
  background: var(--card-2); border: 1px solid var(--border);
  border-radius: 10px; padding: 8px 10px; text-align: center;
}
.stat-label { display: block; font-size: 12px; color: var(--muted); }
.stat-value { font-size: 20px; font-weight: 700; color: var(--accent-2); }

.habit-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }

.habit-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--card-2); border: 1px solid var(--border);
  border-radius: 12px; padding: 10px 12px;
}
.habit-swatch { width: 12px; height: 44px; border-radius: 6px; flex: none; }
.habit-main { flex: 1; min-width: 0; }
.habit-name { font-weight: 600; font-size: 16px; overflow-wrap: anywhere; }
.habit-meta { font-size: 13px; color: var(--muted); }
.habit-meta b { color: var(--accent-2); }

.checkin-btn {
  appearance: none; cursor: pointer; flex: none;
  width: 46px; height: 46px; border-radius: 50%;
  border: 2px solid var(--border); background: transparent;
  color: var(--muted); font-size: 20px; font-weight: 700;
}
.checkin-btn:hover { border-color: var(--accent); color: var(--text); }
.checkin-btn.done {
  background: var(--ok); border-color: var(--ok); color: #04150c;
}

.habit-actions { display: flex; gap: 6px; }
.mini-btn {
  appearance: none; cursor: pointer; border: 1px solid var(--border);
  background: transparent; color: var(--muted); border-radius: 8px;
  padding: 6px 9px; font-size: 13px;
}
.mini-btn:hover { color: var(--text); border-color: var(--danger); }

.empty { color: var(--muted); text-align: center; padding: 18px 0 6px; }

.source-box {
  background: #0a0f1d; border: 1px solid var(--border); border-radius: 10px;
  padding: 10px 12px; font: 12.5px/1.55 ui-monospace, Consolas, monospace;
  overflow-x: auto; white-space: pre; max-height: 220px; overflow-y: auto;
  color: #b6c4e2;
}

footer { margin-top: 18px; text-align: center; }
.hint { color: var(--muted); font-size: 13px; }
code { background: var(--card-2); padding: 1px 6px; border-radius: 6px; font-size: 12.5px; }

.error {
  color: var(--danger); background: rgba(255, 107, 107, .08);
  border: 1px solid var(--danger); border-radius: 10px;
  padding: 10px 12px; font-size: 14px;
}

@media (max-width: 480px) {
  .grid { grid-template-columns: 1fr; }
  .field-color { display: flex; align-items: center; gap: 10px; }
  .stat-value { font-size: 17px; }
}