:root {
  --bg: #FFF8F0;
  --card: #FFFFFF;
  --ink: #3D2C1A;
  --ink-soft: #8A7A66;
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --green: #10B981;
  --yellow: #F59E0B;
  --red: #EF4444;
  --border: #F0E6D8;
  --radius: 16px;
  --shadow: 0 2px 10px rgba(61, 44, 26, 0.06);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }

html { font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", sans-serif;
  background: var(--bg);
  color: var(--ink);
  min-height: 100dvh;
  padding-bottom: 76px;
  overscroll-behavior-y: none;
}

#app { max-width: 560px; margin: 0 auto; }

/* HEADER */
#app-header {
  position: sticky; top: 0; z-index: 20;
  background: linear-gradient(135deg, #FBBF24, #F59E0B);
  color: #fff;
  padding: 16px 16px 12px;
  border-radius: 0 0 24px 24px;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.3);
}
.header-top { display: flex; justify-content: space-between; align-items: center; }
#app-header h1 { font-size: 1.3rem; font-weight: 800; }
.brand-badge {
  font-size: 0.62rem; font-weight: 800; letter-spacing: 1.5px;
  background: rgba(0,0,0,0.18); color: #FFF7E6;
  padding: 4px 10px; border-radius: 999px; white-space: nowrap;
  border: 1px solid rgba(255,255,255,0.35);
}
.today-label { font-size: 0.85rem; opacity: 0.95; margin-top: 4px; }

.verdict-chip {
  display: inline-block; margin-top: 8px; padding: 5px 14px;
  border-radius: 999px; font-size: 0.85rem; font-weight: 700;
  background: rgba(255,255,255,0.25);
}
.verdict-chip.green { background: #065F46; }
.verdict-chip.yellow { background: #92400E; }
.verdict-chip.red { background: #7F1D1D; }
.hidden { display: none !important; }

/* TABS */
.tab { display: none; padding: 16px; animation: fadeIn .18s ease; }
.tab.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(4px);} to { opacity: 1; transform: none;} }

/* QUICK LOG */
.quick-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  margin-bottom: 16px;
}
.ql-btn {
  border: none; border-radius: var(--radius);
  background: var(--card); box-shadow: var(--shadow);
  padding: 18px 8px 14px; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  transition: transform .08s ease;
  color: var(--ink);
}
.ql-btn:active { transform: scale(0.95); }
.ql-icon { font-size: 1.9rem; line-height: 1; }
.ql-label { font-size: 0.82rem; font-weight: 700; }
.ql-btn::before {
  content: ""; position: absolute; inset: 0; border-radius: var(--radius);
}
.ql-btn { position: relative; overflow: hidden; }
.ql-btn::after {
  content: ""; position: absolute; inset: 0 auto 0 0; width: 4px;
  background: var(--c); border-radius: 4px 0 0 4px;
}

/* CARD */
.card {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px; margin-bottom: 16px;
  border: 1px solid var(--border);
}
.card h2 { font-size: 1rem; margin-bottom: 12px; color: var(--ink-soft); }

/* SUMMARY */
#today-summary .stat-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.stat { flex: 1; min-width: 100px; text-align: center; padding: 10px 4px; }
.stat .num { font-size: 1.4rem; font-weight: 800; display: block; }
.stat .lbl { font-size: 0.75rem; color: var(--ink-soft); }
.stat b { color: var(--accent-dark); }
.stat.warn { background: #FEF3C7; border-radius: 12px; }
.stat.warn .num { color: #B45309; }

/* REMIND BANNER */
.remind-banner {
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  background: #FEF2F2; border: 1px solid #FECACA; color: #B91C1C;
  border-radius: 14px; padding: 10px 14px; margin-bottom: 12px;
  font-size: 0.85rem; font-weight: 700;
}
.remind-go {
  border: none; background: #EF4444; color: #fff; border-radius: 999px;
  padding: 7px 16px; font-size: 0.82rem; font-weight: 800; cursor: pointer;
  margin-left: auto;
}
.remind-go:active { transform: scale(0.95); }

/* GUIDE IMG */
.guide-ref { margin-top: 10px; padding: 10px 12px; background: #FFF3DC; border-radius: 10px; font-size: 0.85rem; font-weight: 700; }
.guide-ref a { color: var(--accent-dark); text-decoration: none; }
.guide-ref a:active { opacity: 0.7; }

/* GUIDE SEARCH + TAGS */
.guide-search { margin-bottom: 10px; }
.guide-search input {
  width: 100%; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px;
  font-size: 0.95rem; background: var(--card); color: var(--ink);
  box-shadow: var(--shadow); outline: none;
}
.guide-search input:focus { border-color: var(--accent); }
.guide-hint { font-size: 0.78rem; color: var(--ink-soft); margin: -2px 0 12px; }
.guide-tags { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px 16px 0; }
.chip {
  background: #FEF3C7; color: #92400E; border: 1px solid #FCD34D;
  padding: 3px 9px; border-radius: 999px; font-size: 0.68rem; font-weight: 800;
}
.guide-item.hide { display: none; }
.guide-item.hit summary { background: linear-gradient(135deg, #FEF3C7, #FFF3DC); }
.guide-empty { text-align: center; padding: 24px 12px; color: var(--ink-soft); font-size: 0.9rem; }

/* SETTINGS extras */
.switch-label { display: flex; align-items: center; gap: 8px; font-size: 0.9rem; color: var(--ink); font-weight: 600; }
.switch-label input { width: 20px; height: 20px; accent-color: var(--accent); }
.sel {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 0.95rem; background: #FFFDF9; color: var(--ink); margin-top: 4px;
}

/* TIMELINE */
.timeline { display: flex; flex-direction: column; gap: 8px; }
.tl-item {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 10px 14px;
  display: flex; justify-content: space-between; align-items: center;
  box-shadow: var(--shadow);
}
.tl-item .tl-time { font-size: 0.78rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.tl-item .tl-text { font-size: 0.92rem; font-weight: 600; flex: 1; margin: 0 10px; }
.tl-item .tl-emoji { font-size: 1.3rem; }
.tl-item .tl-del {
  border: none; background: none; color: #E5D9C8; font-size: 1.1rem;
  cursor: pointer; padding: 4px 8px; border-radius: 8px;
}
.tl-item .tl-del:hover { color: var(--red); background: #FEF2F2; }
.tl-empty { text-align: center; color: var(--ink-soft); padding: 24px 0; font-size: 0.9rem; }

/* WEEK CHARTS */
.week-table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 0.82rem; }
.week-table th, .week-table td { padding: 6px 4px; text-align: center; border-bottom: 1px solid var(--border); }
.week-table th { color: var(--ink-soft); font-weight: 700; }
.chart-title { font-size: 0.85rem; color: var(--ink-soft); margin: 12px 0 4px; }

/* ASSESS */
.assess-big { font-size: 1.2rem; font-weight: 800; padding: 14px; border-radius: 12px; text-align: center; margin-bottom: 12px; }
.assess-big.green { background: #ECFDF5; color: #065F46; }
.assess-big.yellow { background: #FFFBEB; color: #92400E; }
.assess-big.red { background: #FEF2F2; color: #7F1D1D; }
.assess-item { display: flex; justify-content: space-between; padding: 8px 0; border-bottom: 1px dashed var(--border); font-size: 0.9rem; }
.assess-item .st { font-weight: 800; }
.disclaimer { font-size: 0.75rem; color: var(--ink-soft); margin-top: 12px; line-height: 1.5; }

/* REF LIST */
.ref-list { list-style: none; padding: 0; margin: 0 0 8px; font-size: 0.82rem; line-height: 1.6; color: var(--ink); }
.ref-list li { padding: 4px 0; border-bottom: 1px dashed var(--border); }
.ref-list.links li { border-bottom: none; padding: 2px 0; }
.ref-list a { color: var(--accent-dark); font-weight: 700; text-decoration: none; }
.ref-list a:active { opacity: 0.7; }

/* GUIDE */
.guide-item { margin-bottom: 10px; }
.guide-item details {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; box-shadow: var(--shadow); overflow: hidden;
}
.guide-item summary {
  padding: 14px 16px; font-size: 0.95rem; font-weight: 800; cursor: pointer;
  list-style: none; display: flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, #FFFBEB, #FFF8F0);
  color: var(--ink);
}
.guide-item summary::-webkit-details-marker { display: none; }
.guide-item summary::after {
  content: "＋"; margin-left: auto; color: var(--accent); font-weight: 800; font-size: 1.1rem;
  transition: transform .15s ease;
}
.guide-item details[open] summary::after { content: "－"; }
.guide-body { padding: 6px 16px 14px; font-size: 0.86rem; line-height: 1.65; color: var(--ink); }
.guide-body p { margin: 8px 0; }
.guide-body ol, .guide-body ul { margin: 6px 0 8px; padding-left: 20px; }
.guide-body li { margin: 4px 0; }
.guide-body b { color: var(--accent-dark); }

/* SETTINGS */
label { display: block; font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 10px; }
input[type="text"], input[type="date"], input[type="number"], input[type="password"] {
  width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 1rem; margin-top: 4px; background: #FFFDF9; color: var(--ink);
}
.btn {
  border: 1px solid var(--border); background: var(--card); color: var(--ink);
  padding: 12px 18px; border-radius: 12px; font-size: 0.92rem; font-weight: 700;
  cursor: pointer; transition: transform .08s ease;
}
.btn:active { transform: scale(0.97); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.danger { background: #FEF2F2; border-color: #FECACA; color: var(--red); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-row .btn { flex: 1 1 45%; display: inline-flex; align-items: center; justify-content: center; gap: 6px; text-align: center; }
label.btn { display: inline-flex; cursor: pointer; }
label.btn input[type="file"] { display: none; }
label.btn:active { transform: scale(0.97); }
.sb-status { font-size: 0.8rem; margin-top: 8px; padding: 8px; border-radius: 8px; background: #F5F5F4; white-space: pre-line; line-height: 1.5; }
.sb-status.ok { background: #ECFDF5; color: #065F46; }
.sb-status.err { background: #FEF2F2; color: #7F1D1D; }

/* MODAL */
.modal {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(61, 44, 26, 0.45);
  display: flex; align-items: flex-end; justify-content: center;
}
.modal-box {
  background: #fff; width: 100%; max-width: 560px;
  border-radius: 24px 24px 0 0; padding: 20px 20px 28px;
  animation: slideUp .2s ease;
}
@keyframes slideUp { from { transform: translateY(40px); opacity: .6;} to { transform: none; opacity: 1;} }
.modal-box h3 { margin-bottom: 16px; font-size: 1.1rem; }
.modal-actions { display: flex; gap: 12px; margin-top: 18px; }
.modal-actions .btn { flex: 1; }

.chip-group { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.chip {
  border: 2px solid var(--border); background: #fff; border-radius: 999px;
  padding: 10px 18px; font-size: 0.9rem; font-weight: 600; cursor: pointer;
  color: var(--ink);
}
.chip.selected { border-color: var(--accent); background: #FFFBEB; color: var(--accent-dark); }
.input-row { margin: 10px 0; }
.input-row label { margin-bottom: 0; }
.unit { color: var(--ink-soft); font-size: 0.85rem; }

/* TOAST */
.toast {
  position: fixed; left: 50%; bottom: 96px; transform: translateX(-50%);
  background: #3D2C1A; color: #fff; padding: 12px 22px; border-radius: 999px;
  font-size: 0.9rem; font-weight: 600; z-index: 100; box-shadow: 0 6px 20px rgba(0,0,0,0.2);
  animation: fadeIn .15s ease;
}

/* LOG MARKER — mốc thời gian ghi nhanh */
.log-marker {
  display: flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, #FFFBEB, #FEF3C7);
  border: 1px solid #FDE68A; border-radius: 14px;
  padding: 8px 12px; margin-bottom: 12px;
}
.lm-label { font-size: 0.8rem; font-weight: 800; color: var(--accent-dark); white-space: nowrap; }
.log-marker input[type="datetime-local"] {
  flex: 1; border: 1px solid #FDE68A; border-radius: 10px; padding: 7px 8px;
  font-size: 0.92rem; background: #fff; color: var(--ink); min-width: 0;
}
.log-marker .nav-btn.today { padding: 8px 14px; }

/* DAY NAV */
.day-nav {
  display: flex; align-items: center; gap: 6px;
  background: var(--card); border: 1px solid var(--border);
  border-radius: 14px; padding: 8px; margin-bottom: 10px;
  box-shadow: var(--shadow);
}
.day-nav input[type="date"] {
  flex: 1; border: none; background: transparent; font-size: 1rem;
  padding: 6px 4px; color: var(--ink); min-width: 0;
}
.nav-btn {
  border: none; background: #FFF3DC; color: var(--accent-dark);
  border-radius: 10px; padding: 8px 10px; font-size: 0.95rem; font-weight: 800;
  cursor: pointer; flex-shrink: 0;
}
.nav-btn.today { background: var(--accent); color: #fff; font-size: 0.8rem; padding: 8px 12px; }
.nav-btn:active { transform: scale(0.95); }
.day-label {
  font-size: 0.82rem; color: var(--ink-soft); margin: 0 4px 12px;
  display: flex; justify-content: space-between; align-items: center;
}
.day-label .past-badge { background: #FEF3C7; color: #92400E; padding: 2px 10px; border-radius: 999px; font-weight: 700; }
.day-label .age-badge { color: var(--accent-dark); font-weight: 800; }
.day-label .birth-badge { background: #FEE2E2; color: #B91C1C; padding: 2px 10px; border-radius: 999px; font-weight: 800; font-size: 0.8rem; }

/* TIME SLOTS */
.slot { margin-bottom: 14px; }
.slot-head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 8px 12px; border-radius: 12px 12px 0 0;
  font-size: 0.85rem; font-weight: 800;
}
.slot-head .slot-count { font-weight: 600; opacity: 0.85; font-size: 0.78rem; }
.slot-body {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 0 0 12px 12px; padding: 6px 10px;
}
.slot-items { display: flex; flex-direction: column; }
.slot-empty { color: var(--ink-soft); font-size: 0.8rem; padding: 6px 2px; font-style: italic; }
.slot-quick { display: flex; gap: 6px; padding: 8px 0 4px; border-top: 1px dashed var(--border); margin-top: 6px; flex-wrap: wrap; }
.slot-btn {
  border: 1px solid var(--border); background: #FFFBEB; border-radius: 8px;
  padding: 5px 9px; font-size: 0.8rem; cursor: pointer; color: var(--ink);
  font-weight: 700;
}
.slot-btn:active { transform: scale(0.95); }

/* WEEK SUMMARY */
.week-summary {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
  margin-bottom: 8px;
}
.ws-stat { background: #FFFBEB; border-radius: 10px; padding: 8px 6px; text-align: center; }
.ws-stat .n { font-size: 1.05rem; font-weight: 800; color: var(--accent-dark); display: block; }
.ws-stat .l { font-size: 0.68rem; color: var(--ink-soft); }

/* TABBAR */
#tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 30;
  background: #fff; border-top: 1px solid var(--border);
  display: flex; padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
  max-width: 560px; margin: 0 auto;
}
.tab-btn {
  flex: 1; border: none; background: none; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 8px 2px; font-size: 0.62rem; font-weight: 700; color: var(--ink-soft);
  border-radius: 12px;
}
.tab-btn span { font-size: 1.25rem; }
.tab-btn.active { color: var(--accent-dark); background: #FFFBEB; }

/* BRAND FOOTER + ABOUT */
.app-footer {
  text-align: center; padding: 14px 0 10px;
  font-size: 0.62rem; font-weight: 800; letter-spacing: 2px;
  color: var(--ink-soft);
}
.about-brand { text-align: center; padding: 6px 0 2px; }
.about-logo {
  display: inline-block; font-size: 0.85rem; font-weight: 800; letter-spacing: 2px;
  color: var(--accent-dark);
  background: linear-gradient(135deg, #FBBF24, #F59E0B);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 4px;
}
.about-tag { font-size: 0.8rem; color: var(--ink-soft); margin-bottom: 8px; }
.about-ver { font-size: 0.7rem; color: var(--ink-soft); opacity: 0.8; margin-top: 10px; }
.about-brand p { font-size: 0.82rem; color: var(--ink-soft); }
.about-links { display: flex; gap: 14px; justify-content: center; margin-top: 10px; flex-wrap: wrap; }
.about-links a {
  font-size: 0.8rem; font-weight: 700; color: var(--accent-dark);
  text-decoration: none; padding: 6px 12px; border: 1px solid var(--border);
  border-radius: 999px; background: #FFFBEB;
}