/* ---- Tokens -----------------------------------------------------------
   Grounded in the subject's own vernacular: the FDA Nutrition Facts panel.
   Ink on paper, thick/thin rules, condensed numerals doing the heavy lifting.
------------------------------------------------------------------------- */
:root {
  --ink: #172033;
  --paper: #f3f6fb;
  --paper-raised: #ffffff;
  --line: #26324a;
  --line-soft: #d8dfeb;
  --primary: #5b4bdb;
  --primary-deep: #4032b5;
  --primary-soft: #eeecff;
  --accent-protein: #ed6a5a;
  --accent-carb: #1c9a8b;
  --accent-fat: #e5a529;
  --accent-good: #168778;
  --accent-over: #d95649;
  --muted: #68748a;
  --shadow: 0 18px 50px rgba(43, 54, 86, 0.10);
  --shadow-soft: 0 8px 24px rgba(43, 54, 86, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 11px;

  --display: 'Archivo', system-ui, sans-serif;
  --num: 'Archivo Narrow', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--num);
  font-size: 16px;
  line-height: 1.4;
}

button, input, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.app { max-width: 720px; margin: 0 auto; padding: 0 16px 64px; }

/* ---- Authentication ------------------------------------------------------ */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  background:
    linear-gradient(90deg, transparent 49.8%, rgba(22, 20, 15, 0.06) 50%, transparent 50.2%),
    var(--paper);
}
.auth-card {
  width: min(100%, 440px);
  border: 3px solid var(--line);
  background: var(--paper-raised);
  padding: 28px;
  box-shadow: 10px 10px 0 var(--ink);
}
.auth-wordmark { margin-bottom: 30px; }
.auth-card h1 {
  margin: 0 0 8px;
  font-family: var(--display);
  font-size: 28px;
  line-height: 1.05;
}
.auth-intro { margin: 0 0 22px; color: var(--muted); }
.auth-switch { display: grid; grid-template-columns: 1fr 1fr; margin-bottom: 18px; }
.auth-switch button {
  border: 2px solid var(--line);
  background: transparent;
  padding: 9px;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}
.auth-switch button + button { border-left: 0; }
.auth-switch button.active { background: var(--ink); color: var(--paper); }
.auth-form, .settings-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form label, .settings-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}
.auth-form input, .settings-form input, .settings-form select {
  border: 2px solid var(--line);
  background: var(--paper-raised);
  padding: 9px 10px;
}
.auth-form button, .settings-form button, .secondary-action {
  align-self: flex-start;
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding: 9px 15px;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}
.auth-form button:disabled { opacity: 0.55; cursor: wait; }
.form-message { min-height: 20px; margin-top: 10px; color: var(--accent-over); font-size: 13px; }

/* ---- Topbar ------------------------------------------------------------ */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: var(--paper);
  padding: 20px 0 12px;
  border-bottom: 3px solid var(--line);
}
.wordmark {
  font-family: var(--display);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.tabs { display: flex; gap: 4px; margin-bottom: 12px; flex-wrap: wrap; }
.tab {
  background: transparent;
  border: 2px solid var(--line);
  padding: 6px 14px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
}
.tab.active { background: var(--ink); color: var(--paper); }

.date-control { display: flex; align-items: center; gap: 8px; }
.date-control button {
  background: none; border: 2px solid var(--line); width: 30px; height: 30px;
  font-weight: 700; cursor: pointer;
}
.date-control input[type="date"] {
  border: 2px solid var(--line); padding: 4px 8px; background: var(--paper-raised);
}

/* ---- Views --------------------------------------------------------------- */
.view { display: none; padding-top: 20px; }
.view.active { display: block; }

.section-label {
  font-family: var(--display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

/* ---- Facts panel: the signature element --------------------------------- */
.panel {
  background: var(--paper-raised);
  border: 3px solid var(--line);
  padding: 18px 20px;
  margin-bottom: 24px;
}
.panel.narrow { max-width: 480px; }

.facts-title {
  font-family: var(--display);
  font-weight: 900;
  font-size: 26px;
  letter-spacing: -0.01em;
}
.facts-rule { background: var(--line); margin: 6px 0; }
.facts-rule.thick { height: 8px; }
.facts-rule.thin { height: 1px; background: var(--line-soft); margin: 10px 0; }

.facts-calories {
  display: flex; justify-content: space-between; align-items: baseline;
  font-family: var(--display);
}
.facts-calories span:first-child { font-weight: 700; font-size: 20px; }
.facts-calories span:last-child { font-weight: 900; font-size: 44px; font-variant-numeric: tabular-nums; }

.facts-sub {
  display: flex; justify-content: space-between; font-size: 13px; color: var(--muted);
  padding: 4px 0;
}
#factRemaining { font-weight: 600; color: var(--ink); }

.macro-bars { display: flex; flex-direction: column; gap: 10px; margin-top: 6px; }
.macro-row { display: grid; grid-template-columns: 70px 1fr 100px; align-items: center; gap: 10px; font-size: 13px; }
.macro-row .label { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 11px; letter-spacing: 0.04em; }
.macro-track { height: 10px; background: var(--paper); border: 1px solid var(--line-soft); position: relative; }
.macro-fill { height: 100%; }
.macro-fill.protein { background: var(--accent-protein); }
.macro-fill.carbs { background: var(--accent-carb); }
.macro-fill.fat { background: var(--accent-fat); }
.macro-vals { font-variant-numeric: tabular-nums; text-align: right; color: var(--muted); }

/* ---- Daily completion ---------------------------------------------------- */
.daily-completion {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 2px solid var(--line);
  padding: 12px 14px;
  margin: -8px 0 24px;
  background: var(--paper-raised);
}
.daily-completion > div { display: flex; flex-direction: column; gap: 2px; }
.daily-completion strong {
  font-family: var(--display);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.daily-completion span { color: var(--muted); font-size: 13px; }
.daily-completion button {
  flex: 0 0 auto;
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding: 9px 15px;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}
.daily-completion.complete {
  border-color: var(--accent-good);
  box-shadow: inset 6px 0 0 var(--accent-good);
}
.daily-completion.complete strong { color: var(--accent-good); }
.daily-completion.complete button { background: transparent; color: var(--ink); }
.daily-completion button:disabled { opacity: 0.5; cursor: wait; }

/* ---- Meals --------------------------------------------------------------- */
.meal-group { margin-bottom: 18px; }
.meal-header {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 2px solid var(--line); padding-bottom: 4px; margin-bottom: 6px;
}
.meal-header h3 {
  font-family: var(--display); text-transform: uppercase; font-size: 14px;
  letter-spacing: 0.05em; margin: 0;
}
.meal-header .meal-cals { font-weight: 700; font-variant-numeric: tabular-nums; }
.meal-entry {
  display: flex; justify-content: space-between; padding: 5px 0;
  border-bottom: 1px dotted var(--line-soft);
  font-size: 14px;
}
.meal-entry .name { flex: 1; }
.meal-entry .meta { color: var(--muted); font-size: 12px; margin-left: 8px; }
.meal-entry .kcal { font-variant-numeric: tabular-nums; font-weight: 600; min-width: 54px; text-align: right; }
.meal-entry button.remove {
  background: none; border: none; color: var(--accent-over); cursor: pointer; font-size: 16px;
  margin-left: 10px; line-height: 1; padding: 0 2px;
}
.empty-meal { color: var(--muted); font-size: 13px; padding: 6px 0; }

/* ---- Exercise -------------------------------------------------------------- */
.exercise-block { margin-top: 8px; }
#exerciseList { margin-bottom: 8px; }
.exercise-row {
  display: flex; justify-content: space-between; font-size: 14px; padding: 4px 0;
  border-bottom: 1px dotted var(--line-soft);
}
.exercise-row .kcal { color: var(--accent-good); font-weight: 600; }

/* ---- Forms ----------------------------------------------------------------- */
.inline-form { display: flex; gap: 8px; margin-top: 6px; flex-wrap: wrap; }
.inline-form input {
  border: 2px solid var(--line); padding: 8px 10px; background: var(--paper-raised); flex: 1; min-width: 120px;
}
.inline-form button, .confirm-card button, #aiLookupBtn {
  border: 2px solid var(--line); background: var(--ink); color: var(--paper);
  font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 12px;
  letter-spacing: 0.04em; padding: 9px 16px; cursor: pointer;
}
.inline-form button:hover, .confirm-card button:hover, #aiLookupBtn:hover { opacity: 0.85; }

#aiLookupBtn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-width: 158px;
  transition: opacity 160ms ease, transform 160ms ease, background-color 160ms ease;
}
#aiLookupBtn:disabled {
  cursor: wait;
  opacity: 0.82;
}
#aiLookupBtn.is-searching {
  background: var(--accent);
  color: var(--ink);
}
.ai-search-spinner {
  display: none;
  width: 15px;
  height: 15px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
}
#aiLookupBtn.is-searching .ai-search-spinner {
  display: inline-block;
  animation: ai-search-spin 700ms linear infinite;
}
@keyframes ai-search-spin {
  to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
  .ai-search-spinner { animation-duration: 1.4s !important; }
}

#foodSearch, #mealSelect {
  width: 100%; border: 2px solid var(--line); padding: 10px 12px; margin-bottom: 10px; background: var(--paper-raised);
}
.log-options {
  display: grid;
  grid-template-columns: 1fr 150px;
  gap: 10px;
  margin-bottom: 10px;
}
.log-options label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}
.log-options #mealSelect, .log-options input {
  width: 100%;
  height: 44px;
  margin: 0;
  border: 2px solid var(--line);
  background: var(--paper-raised);
  padding: 8px 10px;
}

.results-list { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.result-item {
  display: flex; justify-content: space-between; align-items: center;
  border: 1px solid var(--line-soft); padding: 8px 10px; cursor: pointer; background: var(--paper-raised);
}
.result-item:hover { border-color: var(--line); }
.result-item .r-name { font-weight: 600; font-size: 14px; }
.result-item .r-meta { font-size: 12px; color: var(--muted); }
.result-item .r-kcal { font-variant-numeric: tabular-nums; font-weight: 700; }

.ai-prompt {
  border: 2px dashed var(--line-soft); padding: 12px; text-align: center; margin-top: 4px;
}
.ai-prompt p { margin: 0 0 8px; font-size: 13px; color: var(--muted); }

.confirm-card {
  border: 3px solid var(--line); padding: 14px; margin-top: 12px; background: var(--paper-raised);
}
.confirm-card h4 { margin: 0 0 4px; font-family: var(--display); font-size: 16px; }
.confirm-card .confidence { font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); margin-bottom: 10px; }
.confirm-card .cc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 12px; }
.confirm-card .cc-grid label { display: flex; flex-direction: column; font-size: 11px; color: var(--muted); gap: 3px; }
.confirm-card .cc-grid input { border: 1px solid var(--line-soft); padding: 5px 6px; font-variant-numeric: tabular-nums; }
.confirm-card .cc-actions { display: flex; gap: 8px; }
.confirm-card .cc-actions button.secondary { background: var(--paper-raised); color: var(--ink); }

.quick-add {
  margin-top: 18px;
  border-top: 2px solid var(--line);
  padding-top: 14px;
}
.quick-add summary {
  font-family: var(--display);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}
.quick-add form { margin-top: 14px; }
.quick-add p { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.quick-add label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}
.quick-add input {
  width: 100%;
  border: 2px solid var(--line);
  background: var(--paper-raised);
  padding: 8px 9px;
}
.quick-name { margin-bottom: 10px; }
.quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.quick-add button {
  margin-top: 12px;
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding: 9px 15px;
  font-family: var(--display);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}
.quick-add button:disabled { opacity: 0.5; cursor: wait; }

.hidden { display: none !important; }

/* ---- Insights ------------------------------------------------------------ */
.insights-heading h2 {
  margin: 0 0 18px;
  font-family: var(--display);
  font-size: 26px;
  line-height: 1.1;
}
.insight-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.insight-stat {
  min-height: 120px;
  border: 2px solid var(--line);
  background: var(--paper-raised);
  padding: 13px 14px;
  display: flex;
  flex-direction: column;
}
.insight-stat > span {
  color: var(--muted);
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.insight-stat strong {
  margin-top: auto;
  font-family: var(--display);
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
}
.insight-stat small { margin-top: 6px; color: var(--muted); }
.insight-chart { display: flex; flex-direction: column; gap: 10px; }
.insight-day {
  display: grid;
  grid-template-columns: 34px 1fr 54px;
  align-items: center;
  gap: 9px;
}
.day-label {
  color: var(--muted);
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.day-value {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  text-align: right;
}
.insight-track {
  position: relative;
  height: 18px;
  border: 1px solid var(--line-soft);
  background: var(--paper);
}
.insight-fill { height: 100%; background: var(--ink); min-width: 0; }
.insight-fill.completed { background: var(--accent-good); }
.goal-marker {
  position: absolute;
  top: -4px;
  bottom: -4px;
  width: 2px;
  background: var(--accent-protein);
}
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 16px;
  color: var(--muted);
  font-size: 11px;
}
.chart-legend span { display: inline-flex; align-items: center; gap: 6px; }
.chart-legend i { display: inline-block; width: 16px; }
.legend-bar { height: 8px; background: var(--ink); }
.legend-goal { height: 2px; background: var(--accent-protein); }
.insight-callout { border-left-width: 8px; }
.insight-callout h3 {
  margin: 0 0 6px;
  font-family: var(--display);
  font-size: 18px;
}
.insight-callout p { margin: 0; color: var(--muted); }

/* ---- Profile form ------------------------------------------------------ */
.profile-form { display: flex; flex-direction: column; gap: 10px; }
.profile-form label { display: flex; flex-direction: column; font-size: 12px; color: var(--muted); gap: 4px; }
.profile-form input, .profile-form select { border: 2px solid var(--line); padding: 8px 10px; background: var(--paper-raised); }
.macro-inputs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.profile-form button { align-self: flex-start; }

/* ---- Settings ------------------------------------------------------------ */
.settings-title {
  margin: 0 0 18px;
  font-family: var(--display);
  font-size: 20px;
}
.settings-title span { color: var(--accent-good); }
.secondary-action {
  margin-top: 22px;
  background: transparent;
  color: var(--ink);
}

/* ---- Coach Lebron -------------------------------------------------------- */
.coach-fab {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 30;
  width: 66px;
  height: 66px;
  border: 3px solid var(--line);
  border-radius: 50%;
  background: var(--accent-protein);
  color: #fff;
  box-shadow: 5px 5px 0 var(--ink);
  font-family: var(--display);
  font-size: 17px;
  font-weight: 900;
  cursor: pointer;
}
.coach-fab:hover { transform: translate(-1px, -1px); box-shadow: 6px 6px 0 var(--ink); }
.coach-fab::after {
  content: 'Coach Lebron';
  position: absolute;
  right: 72px;
  top: 50%;
  width: max-content;
  transform: translateY(-50%);
  border: 2px solid var(--line);
  background: var(--paper-raised);
  color: var(--ink);
  padding: 5px 8px;
  font-family: var(--display);
  font-size: 11px;
  text-transform: uppercase;
  opacity: 0;
  pointer-events: none;
}
.coach-fab:hover::after, .coach-fab:focus-visible::after { opacity: 1; }
.coach-panel {
  position: fixed;
  right: 24px;
  bottom: 102px;
  z-index: 29;
  width: min(390px, calc(100vw - 32px));
  height: min(590px, calc(100vh - 130px));
  border: 3px solid var(--line);
  background: var(--paper-raised);
  box-shadow: 8px 8px 0 var(--ink);
  display: flex;
  flex-direction: column;
}
.coach-panel header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 3px solid var(--line);
  padding: 13px 14px;
}
.coach-panel header > div { display: flex; flex-direction: column; }
.coach-panel header strong {
  font-family: var(--display);
  font-size: 16px;
}
.coach-panel header span { color: var(--muted); font-size: 11px; text-transform: uppercase; }
.coach-panel header button {
  border: 0;
  background: transparent;
  font-size: 25px;
  line-height: 1;
  cursor: pointer;
}
.coach-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
}
.coach-message {
  max-width: 88%;
  border: 1px solid var(--line);
  padding: 9px 10px;
  white-space: pre-wrap;
  font-size: 14px;
}
.coach-message.assistant { align-self: flex-start; background: var(--paper); }
.coach-message.user { align-self: flex-end; background: var(--ink); color: var(--paper); }
.coach-message.thinking { color: var(--muted); font-style: italic; }
.coach-message.error { border-color: var(--accent-over); color: var(--accent-over); }
.coach-prompts { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 10px; }
.coach-prompts button {
  border: 1px solid var(--line);
  background: transparent;
  padding: 5px 8px;
  font-size: 12px;
  cursor: pointer;
}
.coach-panel form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px;
  border-top: 2px solid var(--line);
  padding: 10px;
}
.coach-panel form input {
  min-width: 0;
  border: 2px solid var(--line);
  padding: 8px 9px;
}
.coach-panel form button {
  border: 2px solid var(--line);
  background: var(--ink);
  color: var(--paper);
  padding: 8px 12px;
  font-family: var(--display);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  cursor: pointer;
}
.coach-panel form button:disabled { opacity: 0.5; cursor: wait; }
.coach-panel > small { padding: 0 10px 9px; color: var(--muted); }

/* ---- Weight -------------------------------------------------------------- */
.weight-history { margin-top: 14px; }
.weight-row { display: flex; justify-content: space-between; font-size: 14px; padding: 5px 0; border-bottom: 1px dotted var(--line-soft); }

/* ---- Focus visibility ---------------------------------------------------- */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid var(--accent-fat); outline-offset: 1px;
}

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }

/* ---- Mobile -------------------------------------------------------------- */
@media (max-width: 520px) {
  .facts-calories span:last-child { font-size: 36px; }
  .cc-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .macro-row { grid-template-columns: 60px 1fr 80px; }
  .daily-completion { align-items: stretch; flex-direction: column; }
  .daily-completion button { width: 100%; }
  .insight-stats { grid-template-columns: 1fr; }
  .auth-card { padding: 22px 18px; box-shadow: 6px 6px 0 var(--ink); }
  .log-options { grid-template-columns: 1fr; }
  .quick-grid { grid-template-columns: repeat(2, 1fr); }
  .coach-fab { right: 16px; bottom: 16px; }
  .coach-panel { right: 16px; bottom: 94px; height: min(570px, calc(100vh - 112px)); }
}

/* ---- Full-screen 2026 refresh ------------------------------------------- */
body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 4%, rgba(91, 75, 219, 0.14), transparent 28%),
    radial-gradient(circle at 94% 12%, rgba(28, 154, 139, 0.12), transparent 30%),
    linear-gradient(180deg, #f8f9fd 0%, var(--paper) 52%, #eef3f8 100%);
}

button, input, select { border-radius: var(--radius-sm); }
button { transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease; }
button:not(:disabled):active { transform: translateY(1px); }

.app {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 18px clamp(18px, 3vw, 52px) 100px;
}

.topbar {
  top: 14px;
  display: grid;
  grid-template-columns: minmax(220px, auto) 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 14px 16px;
  border: 1px solid rgba(38, 50, 74, 0.11);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}
.wordmark {
  margin: 0;
  color: var(--primary-deep);
  font-size: clamp(17px, 1.65vw, 24px);
  letter-spacing: 0.015em;
}
.tabs {
  justify-content: center;
  gap: 6px;
  margin: 0;
}
.tab {
  border: 1px solid transparent;
  border-radius: 999px;
  background: #f1f4f9;
  padding: 8px 13px;
  color: #4d5a70;
  font-size: 11px;
}
.tab:hover { border-color: #cbd3e0; background: #fff; }
.tab.active {
  border-color: transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
  box-shadow: 0 6px 16px rgba(91, 75, 219, 0.25);
}
.date-control { justify-content: flex-end; }
.date-control button {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: #fff;
}
.date-control input[type="date"] {
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  background: #fff;
}

main { width: 100%; }
.view { padding-top: 26px; }
.view.active { animation: view-in 220ms ease-out; }
@keyframes view-in {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel {
  border: 1px solid rgba(38, 50, 74, 0.12);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: clamp(18px, 2vw, 28px);
}
.panel.narrow { width: 100%; max-width: none; }

#view-diary.active {
  display: grid;
  grid-template-columns: minmax(330px, 0.8fr) minmax(440px, 1.6fr);
  grid-template-areas:
    "facts meals"
    "completion meals"
    ". exercise";
  align-items: start;
  gap: 20px 24px;
}
#factsPanel {
  grid-area: facts;
  margin: 0;
  background:
    linear-gradient(145deg, rgba(91, 75, 219, 0.08), transparent 52%),
    var(--paper-raised);
}
#factsPanel .facts-title { color: var(--primary-deep); }
.facts-rule.thick {
  height: 5px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--primary), var(--accent-carb));
}
.daily-completion {
  grid-area: completion;
  margin: 0;
  border: 1px solid rgba(38, 50, 74, 0.12);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.daily-completion button,
.inline-form button,
.confirm-card button,
#aiLookupBtn,
.quick-add button,
.auth-form button,
.settings-form button {
  border-color: transparent;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  box-shadow: 0 7px 16px rgba(91, 75, 219, 0.18);
}
.daily-completion.complete {
  border-color: rgba(22, 135, 120, 0.38);
  background: #f0fbf8;
  box-shadow: inset 5px 0 0 var(--accent-good), var(--shadow-soft);
}
#meals {
  grid-area: meals;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.meal-group {
  min-height: 150px;
  margin: 0;
  border: 1px solid rgba(38, 50, 74, 0.11);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
  padding: 16px;
}
.meal-header {
  border-color: var(--line-soft);
  margin-bottom: 10px;
}
.meal-header h3 { color: var(--primary-deep); }
.meal-entry { gap: 8px; padding: 8px 0; }
.exercise-block {
  grid-area: exercise;
  border: 1px solid rgba(38, 50, 74, 0.11);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

#view-log .panel { max-width: 1080px; margin-inline: auto; }
#view-weight .panel,
#view-profile .panel { max-width: 780px; margin-inline: auto; }
#view-settings.active {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  align-items: start;
  gap: 22px;
}
#view-settings .panel { margin: 0; }
.log-options { grid-template-columns: minmax(220px, 1fr) minmax(160px, 240px); }

input, select {
  border-color: var(--line-soft) !important;
  background: #fbfcfe !important;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}
input:focus, select:focus {
  border-color: var(--primary) !important;
  background: #fff !important;
  box-shadow: 0 0 0 4px rgba(91, 75, 219, 0.10);
  outline: none;
}

.result-item {
  border-radius: 12px;
  background: #fbfcfe;
}
.result-item:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
}
.quick-add {
  border: 1px solid rgba(91, 75, 219, 0.20);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--primary-soft), #fff 68%);
  padding: 16px;
}
.confirm-card { border-radius: var(--radius-md); border-color: var(--primary); }

.insight-stats {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.insight-stat {
  border: 1px solid rgba(38, 50, 74, 0.11);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
}
.insight-stat:nth-child(1) { background: linear-gradient(145deg, #f1efff, #fff); }
.insight-stat:nth-child(2) { background: linear-gradient(145deg, #eaf9f6, #fff); }
.insight-stat:nth-child(3) { background: linear-gradient(145deg, #fff3ed, #fff); }
.insight-stat:nth-child(4) { background: linear-gradient(145deg, #fff8df, #fff); }
.insight-fill { border-radius: 5px; background: linear-gradient(90deg, var(--primary), #8174eb); }
.insight-track { border-radius: 6px; overflow: visible; }
.insight-callout { border-left: 6px solid var(--primary); }

.auth-shell {
  background:
    radial-gradient(circle at 15% 20%, rgba(91, 75, 219, 0.20), transparent 34%),
    radial-gradient(circle at 85% 75%, rgba(28, 154, 139, 0.18), transparent 34%),
    var(--paper);
}
.auth-card {
  border: 1px solid rgba(38, 50, 74, 0.14);
  border-radius: 28px;
  box-shadow: 0 28px 70px rgba(43, 54, 86, 0.20);
}
.auth-switch { gap: 6px; }
.auth-switch button {
  border: 0;
  border-radius: 10px;
  background: #f1f4f9;
}
.auth-switch button + button { border-left: 0; }
.auth-switch button.active { background: var(--primary); }

.coach-fab {
  width: 70px;
  height: 70px;
  border: 0;
  background: linear-gradient(145deg, #f47b65, #d94d61);
  box-shadow: 0 12px 30px rgba(217, 77, 97, 0.32);
}
.coach-panel {
  border: 1px solid rgba(38, 50, 74, 0.15);
  border-radius: 24px;
  box-shadow: 0 24px 70px rgba(43, 54, 86, 0.26);
  overflow: hidden;
}
.coach-panel header {
  border: 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
}
.coach-panel header span { color: rgba(255, 255, 255, 0.76); }
.coach-panel header button { color: #fff; }
.coach-message { border: 0; border-radius: 14px 14px 14px 4px; }
.coach-message.assistant { background: #f0f2f8; }
.coach-message.user {
  border-radius: 14px 14px 4px 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
}

@media (max-width: 1120px) {
  .topbar {
    grid-template-columns: 1fr auto;
    grid-template-areas: "brand date" "tabs tabs";
  }
  .wordmark { grid-area: brand; }
  .tabs { grid-area: tabs; justify-content: flex-start; overflow-x: auto; padding-bottom: 2px; }
  .date-control { grid-area: date; }
  #view-diary.active {
    grid-template-columns: minmax(300px, 0.85fr) 1.4fr;
  }
  #meals { grid-template-columns: 1fr; }
  .insight-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .app { padding: 10px 12px 92px; }
  .topbar {
    top: 8px;
    grid-template-columns: 1fr;
    grid-template-areas: "brand" "tabs" "date";
    gap: 10px;
    border-radius: 18px;
  }
  .tabs { width: 100%; }
  .tab { flex: 0 0 auto; }
  .date-control { justify-content: flex-start; }
  #view-diary.active {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas: "facts" "completion" "meals" "exercise";
  }
  #meals { grid-template-columns: 1fr; }
  #view-settings.active { grid-template-columns: 1fr; }
  .insight-stats { grid-template-columns: 1fr; }
  .log-options { grid-template-columns: 1fr; }
  .panel { border-radius: 18px; }
  .coach-panel {
    right: 12px;
    bottom: 92px;
    width: calc(100vw - 24px);
    height: min(620px, calc(100vh - 108px));
  }
  .coach-fab { right: 14px; bottom: 14px; }
}