:root {
  color-scheme: light dark;
  --bg: var(--tg-theme-bg-color, #f4f6f2);
  --surface: var(--tg-theme-secondary-bg-color, #ffffff);
  --text: var(--tg-theme-text-color, #17201c);
  --muted: var(--tg-theme-hint-color, #6c7771);
  --line: #dce2dd;
  --primary: var(--tg-theme-button-color, #177f55);
  --primary-text: var(--tg-theme-button-text-color, #ffffff);
  --protein: #177f55;
  --fat: #dc7550;
  --carbs: #b58a22;
  --water: #397ca8;
  --danger: #b64545;
  --nav-height: 68px;
}

* { box-sizing: border-box; }
html { background: var(--bg); }
body { margin: 0; min-width: 300px; background: var(--bg); color: var(--text); font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; letter-spacing: 0; }
button, input, select, textarea { font: inherit; letter-spacing: 0; }
button { cursor: pointer; }
.hidden { display: none !important; }

.app { width: min(100%, 820px); min-height: 100vh; margin: 0 auto; background: var(--bg); }
.topbar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; min-height: 64px; padding: max(10px, env(safe-area-inset-top)) 18px 10px; background: color-mix(in srgb, var(--bg) 92%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(14px); }
.brand-line, .auth-brand { display: flex; align-items: center; gap: 10px; }
.brand-line div, .auth-brand div { display: grid; gap: 1px; }
.brand-line strong, .auth-brand strong { font-size: 16px; }
.brand-line span:not(.brand-mark), .auth-brand span:not(.brand-mark) { color: var(--muted); font-size: 12px; }
.brand-mark { display: grid; place-items: center; width: 48px; height: 48px; flex: 0 0 auto; background: #17201c; color: #fff; border: 3px solid #d8e8aa; border-radius: 50%; font-family: Georgia, serif; font-size: 25px; }
.brand-mark.small { width: 36px; height: 36px; border-width: 2px; font-size: 19px; }

main { padding: 0 18px calc(var(--nav-height) + 28px + env(safe-area-inset-bottom)); }
.view { display: none; animation: appear .18s ease-out; }
.view.active { display: block; }
@keyframes appear { from { opacity: .55; transform: translateY(3px); } to { opacity: 1; transform: none; } }

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 5px; font-size: 25px; line-height: 1.15; }
h2 { margin: 0; font-size: 16px; }
.welcome-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; padding: 24px 0 18px; }
.welcome-row p, .page-heading p { margin: 0; color: var(--muted); font-size: 13px; }
.page-heading { padding: 25px 0 20px; border-bottom: 1px solid var(--line); margin-bottom: 20px; }

.icon-button { display: grid; place-items: center; width: 38px; height: 38px; padding: 0; border: 1px solid var(--line); border-radius: 50%; background: var(--surface); color: var(--text); font-size: 22px; }
.pro-button { min-height: 34px; padding: 0 13px; border: 1px solid #c89120; border-radius: 6px; background: #fff4cf; color: #704c00; font-weight: 800; }

.calorie-summary { padding: 18px 0 20px; border-top: 1px solid var(--line); }
.calorie-number { display: flex; align-items: baseline; gap: 8px; margin-bottom: 12px; }
.calorie-number > strong { font-size: 42px; line-height: 1; font-variant-numeric: tabular-nums; }
.calorie-number span { color: var(--muted); font-size: 14px; }
.progress-track { overflow: hidden; width: 100%; height: 6px; background: color-mix(in srgb, var(--line) 65%, transparent); border-radius: 3px; }
.progress-track span { display: block; width: 0; height: 100%; background: var(--primary); border-radius: inherit; transition: width .3s ease; }
.progress-track.large { height: 9px; }
.progress-track.protein span { background: var(--protein); }
.progress-track.fat span { background: var(--fat); }
.progress-track.carbs span { background: var(--carbs); }
.progress-track.water span { background: var(--water); }

.macro-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding-bottom: 22px; }
.macro-grid > div { min-width: 0; }
.macro-grid span, .macro-grid strong { display: block; white-space: nowrap; }
.macro-grid span { margin-bottom: 3px; color: var(--muted); font-size: 12px; }
.macro-grid strong { overflow: hidden; margin-bottom: 8px; font-size: 13px; text-overflow: ellipsis; font-variant-numeric: tabular-nums; }

.action-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; padding: 16px 0 24px; border-top: 1px solid var(--line); }
.action-button, .primary-button, .secondary-button { min-height: 46px; border-radius: 7px; font-weight: 750; }
.action-button { border: 1px solid var(--line); background: var(--surface); color: var(--text); }
.action-button span { margin-right: 6px; font-size: 19px; }
.action-button.primary-action, .primary-button { border: 1px solid var(--primary); background: var(--primary); color: var(--primary-text); }
.secondary-button { border: 1px solid var(--line); background: var(--surface); color: var(--text); }
.primary-button { width: 100%; padding: 0 18px; }
.primary-button.compact { width: auto; min-height: 42px; }

.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 16px 0 10px; }
.section-heading > span { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.compact-heading { margin-top: 25px; padding-top: 18px; border-top: 1px solid var(--line); }
.water-row { display: grid; grid-template-columns: minmax(80px, 1fr) auto auto; align-items: center; gap: 9px; padding-bottom: 12px; }
.water-button { min-width: 58px; min-height: 36px; border: 1px solid #9bc1d9; border-radius: 6px; background: color-mix(in srgb, #d7edf9 75%, var(--surface)); color: #245e83; font-weight: 700; }
.day-toolbar { display: grid; grid-template-columns: 38px minmax(125px, 1fr) 38px auto; align-items: center; gap: 8px; padding: 0 0 18px; }
.day-toolbar input { min-height: 38px; }
.secondary-button.compact { min-height: 38px; padding: 0 12px; }
.habit-strip { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; padding-bottom: 12px; }
.habit-strip button { min-height: 38px; padding: 5px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--text); font-size: 12px; }
.habit-strip button.selected { border-color: var(--primary); color: var(--primary); font-weight: 750; }
.suggestion-list { display: grid; gap: 6px; margin: 8px 0 14px; }
.suggestion-list p { margin: 0; padding: 10px 12px; border-left: 3px solid var(--carbs); background: var(--surface); color: var(--muted); font-size: 12px; }

.meal-list, .history-list, .weight-list, .admin-user-list { border-top: 1px solid var(--line); }
.meal-item, .history-item, .weight-item, .admin-user { display: grid; gap: 4px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.meal-item { grid-template-columns: 38px minmax(0, 1fr) 128px; align-items: center; }
.meal-icon { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--surface); border: 1px solid var(--line); }
.meal-copy { min-width: 0; }
.meal-copy strong, .history-item strong { display: block; overflow-wrap: anywhere; font-size: 14px; }
.meal-copy span, .history-item span, .weight-item span, .admin-user span { color: var(--muted); font-size: 12px; }
.meal-actions { display: flex; gap: 5px; }
.meal-actions button { width: 28px; height: 34px; padding: 0; border: 0; background: transparent; color: var(--muted); font-size: 17px; }
.empty-state { display: grid; gap: 5px; justify-items: center; padding: 34px 18px; color: var(--muted); text-align: center; }
.empty-state strong { color: var(--text); }
.empty-state span { max-width: 320px; font-size: 13px; }

.history-item { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
.history-tools, .admin-search { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 9px; margin-bottom: 14px; }
.history-item .nutrition { color: var(--text); font-weight: 700; font-variant-numeric: tabular-nums; }
.weight-item { grid-template-columns: 1fr auto; align-items: center; }
.weight-value { font-size: 18px; font-weight: 800; }

label { display: grid; gap: 6px; color: var(--muted); font-size: 12px; font-weight: 650; }
input, select, textarea { width: 100%; min-height: 43px; padding: 9px 11px; border: 1px solid var(--line); border-radius: 6px; outline: 0; background: var(--surface); color: var(--text); }
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary) 18%, transparent); }
.inline-form { display: grid; grid-template-columns: 1fr 1fr auto; align-items: end; gap: 10px; padding: 16px 0 20px; }
.profile-form { display: grid; gap: 15px; padding-bottom: 22px; }
.profile-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 18px 0; border-top: 1px solid var(--line); }
.danger-button { min-height: 46px; border: 1px solid var(--danger); border-radius: 7px; background: transparent; color: var(--danger); font-weight: 750; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.form-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.text-button, .danger-text-button { padding: 4px 0; border: 0; background: transparent; color: var(--primary); font-weight: 700; }
.danger-text-button { color: var(--danger); }
.switch-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 56px; padding: 8px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); color: var(--text); }
.switch-row span { display: grid; gap: 2px; }
.switch-row small { color: var(--muted); font-weight: 400; }
.switch-row input { width: 22px; height: 22px; min-height: 0; accent-color: var(--primary); }
.switch-row.mini { min-height: 43px; border: 0; }
.support-band { display: flex; align-items: center; justify-content: space-between; padding: 18px 0; border-top: 1px solid var(--line); }
.support-band a, .code-login a { color: var(--primary); font-weight: 700; text-decoration: none; }

.bottom-nav { position: fixed; z-index: 30; right: 0; bottom: 0; left: 0; display: flex; justify-content: center; min-height: calc(var(--nav-height) + env(safe-area-inset-bottom)); padding: 5px max(8px, env(safe-area-inset-left)) env(safe-area-inset-bottom) max(8px, env(safe-area-inset-right)); background: color-mix(in srgb, var(--surface) 94%, transparent); border-top: 1px solid var(--line); backdrop-filter: blur(16px); }
.nav-button { display: grid; place-items: center; align-content: center; gap: 2px; width: min(20%, 150px); min-width: 58px; min-height: 58px; padding: 2px; border: 0; background: transparent; color: var(--muted); font-size: 10px; }
.nav-button span { font-size: 22px; line-height: 1; }
.nav-button.active { color: var(--primary); font-weight: 800; }

.dialog { width: min(calc(100% - 28px), 500px); padding: 0; border: 0; border-radius: 8px; background: var(--surface); color: var(--text); box-shadow: 0 20px 60px #0004; }
.dialog::backdrop { background: #17201c99; }
.dialog form { display: grid; gap: 14px; padding: 18px; }
.dialog-heading { display: flex; align-items: center; justify-content: space-between; }
.ingredient-list { display: grid; max-height: 240px; overflow-y: auto; border-top: 1px solid var(--line); }
.ingredient-row { display: grid; grid-template-columns: 24px minmax(0, 1fr); align-items: center; gap: 9px; padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--text); }
.ingredient-row input { width: 20px; height: 20px; min-height: 0; accent-color: var(--primary); }
.ingredient-row span { display: grid; gap: 2px; }
.ingredient-row small { color: var(--muted); font-weight: 400; }
.analysis-total { padding: 12px; border: 1px solid var(--line); background: var(--bg); font-weight: 800; text-align: center; }
.saved-meal-list { border-top: 1px solid var(--line); }
.saved-meal { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 10px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.saved-meal div:first-child { display: grid; gap: 2px; min-width: 0; }
.saved-meal span { color: var(--muted); font-size: 12px; }
.saved-meal button { width: 34px; height: 34px; border: 0; background: transparent; color: var(--primary); font-size: 19px; }
.checkin-form { display: grid; gap: 12px; padding: 12px 0 22px; }

.auth-screen { display: grid; align-content: center; justify-items: center; min-height: 100vh; padding: 24px; background: var(--bg); }
.auth-brand { margin-bottom: 30px; }
.auth-loading { display: grid; justify-items: center; gap: 8px; color: var(--muted); }
.code-login { display: grid; width: min(100%, 360px); gap: 14px; padding: 20px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
.code-login h1 { font-size: 20px; }
.code-login p { color: var(--muted); font-size: 13px; }
.spinner { width: 30px; height: 30px; border: 3px solid var(--line); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.busy-overlay { position: fixed; z-index: 80; inset: 0; display: grid; place-content: center; justify-items: center; gap: 14px; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: blur(5px); }
.toast { position: fixed; z-index: 100; right: 16px; bottom: calc(var(--nav-height) + 18px + env(safe-area-inset-bottom)); left: 16px; width: min(calc(100% - 32px), 480px); margin: auto; padding: 12px 14px; border-radius: 7px; background: #17201c; color: #fff; box-shadow: 0 8px 30px #0004; font-size: 13px; text-align: center; }

.stat-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stat-grid div { display: grid; gap: 3px; padding: 12px; background: var(--surface); }
.stat-grid strong { font-size: 20px; font-variant-numeric: tabular-nums; }
.stat-grid span { color: var(--muted); font-size: 11px; }
.admin-section { padding: 18px 0; border-bottom: 1px solid var(--line); }
.admin-top-actions { display: flex; justify-content: flex-end; margin: -8px 0 14px; }
.ai-period-grid { display: grid; gap: 1px; margin: 12px 0; border: 1px solid var(--line); background: var(--line); }
.ai-period-row { display: grid; grid-template-columns: minmax(90px, 1.2fr) repeat(5, minmax(68px, 1fr)); gap: 1px; background: var(--line); }
.ai-period-row > span { padding: 9px 7px; background: var(--surface); font-size: 11px; font-variant-numeric: tabular-nums; }
.ai-period-row.header > span { color: var(--muted); font-weight: 750; }
.admin-actions { display: flex; align-items: end; gap: 10px; }
.admin-actions > button { flex: 1; }
.admin-actions label { grid-template-columns: 1fr 38px; align-items: end; flex: 1; }
.admin-actions label input { grid-column: 1; }
.admin-actions label button { grid-column: 2; grid-row: 2; }
.admin-user { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
.admin-user button { min-height: 34px; padding: 0 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); color: var(--text); }
.admin-user .user-actions { display: flex; gap: 6px; }
.admin-note { margin: 10px 0 16px; color: var(--muted); font-size: 12px; }
.audit-list { border-top: 1px solid var(--line); }
.audit-row { display: grid; gap: 2px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.audit-row span { color: var(--muted); font-size: 11px; }

@media (max-width: 560px) {
  .form-grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .inline-form { grid-template-columns: 1fr 1fr; }
  .inline-form button { grid-column: 1 / -1; }
  .stat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .day-toolbar { grid-template-columns: 38px minmax(110px, 1fr) 38px; }
  .day-toolbar .secondary-button { grid-column: 1 / -1; }
  .habit-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .meal-item { grid-template-columns: 34px minmax(0, 1fr); }
  .meal-actions { grid-column: 2; justify-content: flex-end; }
  .admin-user { grid-template-columns: 1fr; }
  .admin-user .user-actions { flex-wrap: wrap; }
  .ai-period-grid { overflow-x: auto; }
  .ai-period-row { min-width: 610px; }
}

@media (max-width: 370px) {
  main { padding-right: 13px; padding-left: 13px; }
  .topbar { padding-right: 13px; padding-left: 13px; }
  .macro-grid { gap: 8px; }
  .macro-grid strong { font-size: 11px; }
  .form-grid, .form-grid.three { grid-template-columns: 1fr; }
  .admin-actions { align-items: stretch; flex-direction: column; }
  .admin-actions > * { width: 100%; }
  .action-strip { grid-template-columns: 1fr; }
  .profile-actions { grid-template-columns: 1fr; }
}

@media (prefers-color-scheme: dark) {
  :root:not([data-force-light]) { --line: #34413a; }
  .brand-mark { background: #eef5e9; color: #17201c; }
  .pro-button { background: #4b3b12; color: #ffe49a; }
  .toast { background: #eef5e9; color: #17201c; }
}