:root {
  --bg: #f6f5f2;
  --card: #ffffff;
  --ink: #26241f;
  --ink-soft: #6b6a63;
  --line: #e6e3db;
  --accent: #2f6f4f;
  --accent-soft: #e8f2ec;
  --amber: #b8842e;
  --amber-soft: #faf1e0;
  --red: #b3432f;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1b1a17;
    --card: #26241f;
    --ink: #f1efe9;
    --ink-soft: #a8a598;
    --line: #3a382f;
    --accent: #63b98a;
    --accent-soft: #24352c;
    --amber: #e0ab5c;
    --amber-soft: #332a1a;
    --red: #e0806c;
    --shadow: 0 1px 3px rgba(0,0,0,0.3), 0 8px 24px rgba(0,0,0,0.25);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100vh;
}

.hidden { display: none !important; }

h1 { font-size: 1.35rem; margin: 0; }
h2 { font-size: 1rem; margin: 0 0 12px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.04em; }
h3 { font-size: 0.95rem; margin: 20px 0 8px; }

button { font-family: inherit; cursor: pointer; }

/* ---------- Auth screen ---------- */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.auth-sub { color: var(--ink-soft); font-size: 0.9rem; margin: 12px 0 20px; }

.auth-card input {
  width: 100%;
  padding: 12px 14px;
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  font-size: 0.95rem;
}

.auth-error { color: var(--red); font-size: 0.85rem; margin-top: 10px; }
.auth-success { color: var(--accent); font-size: 0.85rem; margin-top: 10px; }

.divider { display: flex; align-items: center; gap: 10px; color: var(--ink-soft); font-size: 0.8rem; margin: 14px 0; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }

.btn {
  width: 100%;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  margin-top: 4px;
}

.btn-primary { background: var(--accent); color: white; }
.btn-touchid { background: var(--ink); color: var(--bg); }
.btn-small { width: auto; padding: 8px 14px; font-size: 0.85rem; }

/* ---------- App shell ---------- */
.app { max-width: 900px; margin: 0 auto; padding: 20px; }

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.child-tabs { display: flex; gap: 8px; }

.child-tab {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
}

.child-tab.active { background: var(--accent); color: white; border-color: var(--accent); }

.header-actions { display: flex; gap: 8px; }

.icon-btn {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 12px;
  font-size: 1rem;
  color: var(--ink);
}

.view-tabs { display: flex; gap: 8px; margin-bottom: 18px; }

.view-tab {
  padding: 10px 18px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.9rem;
}

.view-tab.active { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* ---------- Day view ---------- */
.day-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.day-nav input[type="date"] {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink);
  font-size: 0.9rem;
}

.tasks-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .tasks-columns { grid-template-columns: 1fr; }
}

.task-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.task-list { display: flex; flex-direction: column; gap: 10px; }

.task-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg);
  cursor: pointer;
  user-select: none;
}

.task-row.checked { background: var(--accent-soft); }

.task-row input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.task-row .task-label { font-weight: 600; font-size: 0.92rem; }
.task-row .task-time { font-size: 0.78rem; color: var(--ink-soft); }

.edit-lock-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 0.85rem;
  font-weight: 600;
}

.edit-lock-banner.locked { background: var(--amber-soft); color: var(--amber); }
.edit-lock-banner.unlocked { background: var(--accent-soft); color: var(--accent); }
.edit-lock-banner.off { background: var(--line); color: var(--ink-soft); }

.edit-lock-banner button {
  background: none;
  border: 1px solid currentColor;
  color: inherit;
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
}

.points-summary {
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.point-pill {
  background: var(--card);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 12px 18px;
  text-align: center;
  min-width: 90px;
}

.point-pill .num { font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.point-pill .lbl { font-size: 0.75rem; color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.03em; }
.point-pill.bonus .num { color: var(--amber); }
.point-pill.total { background: var(--accent); }
.point-pill.total .num, .point-pill.total .lbl { color: white; }

/* ---------- Month view ---------- */
.month-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 14px;
  font-weight: 700;
  font-size: 1.05rem;
}

.month-stats {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.cal-dow {
  text-align: center;
  font-size: 0.75rem;
  color: var(--ink-soft);
  font-weight: 700;
  padding-bottom: 4px;
}

.cal-day {
  background: var(--card);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 8px 6px;
  min-height: 62px;
  text-align: center;
  cursor: pointer;
  border: 2px solid transparent;
}

.cal-day.empty { visibility: hidden; }
.cal-day.today { border-color: var(--accent); }
.cal-day .cal-date { font-size: 0.8rem; font-weight: 700; }
.cal-day .cal-points { font-size: 1.1rem; font-weight: 700; margin-top: 4px; color: var(--accent); }
.cal-day .cal-bonus { font-size: 0.9rem; }
.cal-day.no-entry .cal-points { color: var(--ink-soft); }

/* ---------- Modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
}

.modal-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  width: 100%;
  max-width: 420px;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-header { display: flex; align-items: center; justify-content: space-between; }

.modal-card input {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  font-size: 0.9rem;
}

.save-bar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  margin-top: 16px;
}

.unsaved-indicator { color: var(--amber); font-size: 0.82rem; font-weight: 600; }

.btn:disabled { opacity: 0.45; cursor: default; }

.toggle-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--ink);
  margin: 10px 0;
  cursor: pointer;
}

.toggle-row input { width: 18px; height: 18px; accent-color: var(--accent); flex-shrink: 0; }

.credentials-list { display: flex; flex-direction: column; gap: 8px; margin: 10px 0; }

.credential-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--bg);
  font-size: 0.85rem;
}

.credential-row button {
  background: none;
  border: none;
  color: var(--red);
  font-size: 0.8rem;
  font-weight: 600;
}