:root {
  --bg: #F7F3EC;
  --panel: #FFFFFF;
  --ink: #1C1C1E;
  --ink-dim: #6B6861;
  --sidebar: #14141A;
  --sidebar-ink: #F7F3EC;
  --sidebar-dim: #8C877D;
  --gold: #8A6D2F;
  --gold-bright: #B8892B;
  --border: #E6E0D4;
  --ok: #3F7A5A;
  --warn: #B5503A;
  --radius: 10px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Inter', Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: Georgia, 'Times New Roman', serif; color: var(--ink); margin: 0 0 8px; }
p { margin: 0 0 10px; line-height: 1.55; color: var(--ink-dim); }
button { font-family: inherit; cursor: pointer; }
a { color: var(--gold-bright); }

.app-shell { display: flex; min-height: 100vh; }

/* ===== Sidebar ===== */
.sidebar {
  width: 240px; flex-shrink: 0; background: var(--sidebar); color: var(--sidebar-ink);
  display: flex; flex-direction: column; padding: 22px 14px; position: sticky; top: 0; height: 100vh;
}
.sidebar .brand { font-family: Georgia, serif; font-size: 15px; font-weight: 700; padding: 6px 10px 22px; letter-spacing: 0.02em; }
.sidebar .brand span { display: block; font-family: Arial, sans-serif; font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-bright); font-weight: 700; margin-bottom: 3px; }
.nav-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: 8px;
  color: var(--sidebar-dim); font-size: 13.5px; font-weight: 500; margin-bottom: 2px; border: none; background: none;
  width: 100%; text-align: left;
}
.nav-item:hover { background: rgba(247,243,236,0.06); color: var(--sidebar-ink); }
.nav-item.active { background: rgba(184,137,43,0.16); color: var(--gold-bright); }
.nav-item .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; opacity: 0.5; flex-shrink: 0; }
.sidebar-foot { margin-top: auto; padding: 10px; font-size: 10.5px; color: var(--sidebar-dim); line-height: 1.5; }

/* ===== Main ===== */
.main { flex: 1; min-width: 0; padding: 32px 40px 80px; max-width: 980px; }
.topbar { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 26px; gap: 20px; flex-wrap: wrap; }
.topbar h1 { font-size: 24px; }
.topbar .sub { font-size: 13px; color: var(--ink-dim); margin: 0; }
.progress-chip { background: var(--panel); border: 1px solid var(--border); border-radius: 99px; padding: 8px 16px; font-size: 12.5px; font-weight: 600; display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.progress-chip .bar { width: 70px; height: 6px; border-radius: 99px; background: var(--border); overflow: hidden; }
.progress-chip .bar i { display: block; height: 100%; background: var(--gold-bright); }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 18px; }
.card h2 { font-size: 16px; margin-bottom: 10px; }
.card h3 { font-size: 13.5px; margin-bottom: 8px; }
.card-row { display: flex; gap: 16px; flex-wrap: wrap; }
.card-row > .card { flex: 1; min-width: 220px; }

.eyebrow { font-family: Arial, sans-serif; font-size: 9.5px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); display: block; margin-bottom: 6px; }

.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 18px; border-radius: 8px;
  font-size: 13px; font-weight: 600; border: 1px solid var(--ink); background: var(--ink); color: #fff;
}
.btn:hover { opacity: 0.88; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--border); }
.btn.gold { background: var(--gold-bright); border-color: var(--gold-bright); color: #1a1407; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }

label { display: block; font-size: 12px; font-weight: 600; color: var(--ink); margin-bottom: 5px; }
input[type="text"], input[type="number"], input[type="date"], select, textarea {
  width: 100%; padding: 9px 11px; border: 1px solid var(--border); border-radius: 7px; font-size: 13.5px;
  font-family: inherit; background: #fff; color: var(--ink); margin-bottom: 14px;
}
textarea { resize: vertical; min-height: 60px; }
.field-row { display: flex; gap: 14px; flex-wrap: wrap; }
.field-row > div { flex: 1; min-width: 160px; }
fieldset { border: none; padding: 0; margin: 0 0 14px; }

input.invalid, textarea.invalid, select.invalid { border-color: var(--warn); background: #FBEFEA; }
.field-error { color: var(--warn); font-size: 11px; font-weight: 600; margin: -10px 0 12px; display: block; }
.save-status { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--ink-dim); margin-top: 8px; min-height: 16px; }
.save-status.saved { color: var(--ok); }
.save-status.saving { color: var(--gold); }
.save-status .dot-pulse { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.night-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(64px, 1fr)); gap: 8px; margin: 10px 0; }
.night-cell {
  aspect-ratio: 1; border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 12px; font-weight: 700; border: 1px solid var(--border); background: #fff; color: var(--ink-dim);
}
.night-cell.logged { background: var(--gold-bright); border-color: var(--gold-bright); color: #1a1407; }
.night-cell.today { outline: 2px solid var(--ink); outline-offset: 2px; }
.night-cell.future { opacity: 0.4; }

table.log-table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
table.log-table th { text-align: left; padding: 7px 8px; background: #F0EBE0; font-weight: 700; color: var(--ink-dim); font-size: 11px; text-transform: uppercase; letter-spacing: 0.03em; }
table.log-table td { padding: 7px 8px; border-bottom: 1px solid var(--border); }

.tabs { display: flex; gap: 4px; margin-bottom: 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.tab-btn { padding: 9px 14px; font-size: 13px; font-weight: 600; color: var(--ink-dim); background: none; border: none; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab-btn.active { color: var(--ink); border-bottom-color: var(--gold-bright); }

.badge { display: inline-block; padding: 3px 9px; border-radius: 99px; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }
.badge.ok { background: rgba(63,122,90,0.12); color: var(--ok); }
.badge.warn { background: rgba(181,80,58,0.12); color: var(--warn); }
.badge.muted { background: #F0EBE0; color: var(--ink-dim); }

.callout { background: #F4F0E6; border-left: 3px solid var(--gold); border-radius: 6px; padding: 12px 15px; font-size: 12.5px; margin-bottom: 14px; }
.callout.warn { background: #FBEFEA; border-left-color: var(--warn); }
.callout.ok { background: #EAF3ED; border-left-color: var(--ok); }

.step-row { display: flex; align-items: flex-start; gap: 10px; padding: 9px 0; border-bottom: 1px solid var(--border); }
.step-row:last-child { border-bottom: none; }
.step-row input[type="checkbox"] { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--gold-bright); }

.modal-overlay {
  position: fixed; inset: 0; background: rgba(20,20,26,0.55); display: flex; align-items: center; justify-content: center;
  z-index: 50; padding: 20px;
}
.modal { background: var(--panel); border-radius: 14px; max-width: 480px; width: 100%; padding: 30px 28px; max-height: 90vh; overflow-y: auto; }

.empty-state { text-align: center; padding: 30px 10px; color: var(--ink-dim); font-size: 13px; }

.chart-wrap { background: #fff; border-radius: 8px; padding: 10px; }
canvas { max-width: 100%; }

.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); background: var(--ink); color: #fff;
  padding: 11px 20px; border-radius: 99px; font-size: 13px; font-weight: 600; z-index: 100; opacity: 0; pointer-events: none;
  transition: opacity 0.25s;
}
.toast.show { opacity: 1; }

@media (max-width: 760px) {
  .app-shell { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: relative; flex-direction: row; overflow-x: auto; padding: 10px; }
  .sidebar .brand, .sidebar-foot { display: none; }
  .nav-item { flex-direction: column; font-size: 10px; gap: 4px; white-space: nowrap; padding: 8px 10px; }
  .main { padding: 20px 16px 60px; }
}