:root {
  --button-text: #ffffff;
  --button-bg: #3565d8;
  --button-bg-hover: #2854c0;
}

/* Primary controls must keep a high-contrast label even inside containers
   that apply their own link colours. */
.btn.btn-primary,
a.btn.btn-primary,
button.btn.btn-primary,
.public-nav__links a.btn.btn-primary {
  background: var(--button-bg);
  color: var(--button-text);
}

.btn.btn-primary:hover,
a.btn.btn-primary:hover,
button.btn.btn-primary:hover,
.public-nav__links a.btn.btn-primary:hover {
  background: var(--button-bg-hover);
  color: var(--button-text);
}

/* The four palettes deliberately differ in temperature, depth and accent,
   while keeping the same restrained component design. */
[data-theme="frost"] {
  --bg: #f3f6fa;
  --surface: rgba(255,255,255,.92);
  --surface-solid: #ffffff;
  --surface-raised: #edf2f8;
  --text: #0d1420;
  --text-2: #566170;
  --text-3: #8691a0;
  --border: rgba(19,38,66,.09);
  --track: #dfe6ef;
  --nav: rgba(244,247,251,.92);
  --accent: #3565d8;
  --accent-strong: #2854c0;
  --button-bg: #3565d8;
  --button-bg-hover: #2854c0;
  --shadow-soft: 0 14px 42px rgba(34,58,94,.07);
}

[data-theme="porcelain"] {
  --bg: #f7f1e7;
  --surface: rgba(255,250,242,.94);
  --surface-solid: #fffaf2;
  --surface-raised: #f1e7da;
  --text: #1c1813;
  --text-2: #6c6257;
  --text-3: #9a8d7f;
  --border: rgba(77,56,34,.11);
  --track: #e7dccf;
  --nav: rgba(248,242,233,.94);
  --accent: #6958c6;
  --accent-strong: #5848b2;
  --button-bg: #6958c6;
  --button-bg-hover: #5848b2;
  --shadow-soft: 0 14px 42px rgba(85,60,35,.08);
}

[data-theme="graphite"] {
  color-scheme: dark;
  --bg: #0b0c0e;
  --surface: rgba(24,25,28,.95);
  --surface-solid: #17181b;
  --surface-raised: #222429;
  --text: #f7f7f8;
  --text-2: #b4b7be;
  --text-3: #777d87;
  --border: rgba(255,255,255,.10);
  --track: #2b2e34;
  --nav: rgba(13,14,16,.94);
  --accent: #7f91ff;
  --accent-strong: #7182ef;
  --button-bg: #5368d9;
  --button-bg-hover: #475bc5;
  --shadow-soft: 0 16px 46px rgba(0,0,0,.34);
}

[data-theme="midnight"] {
  color-scheme: dark;
  --bg: #07111f;
  --surface: rgba(15,28,45,.96);
  --surface-solid: #0f1c2d;
  --surface-raised: #17283d;
  --text: #f3f8ff;
  --text-2: #afbdd1;
  --text-3: #778aa4;
  --border: rgba(137,180,231,.13);
  --track: #223650;
  --nav: rgba(7,17,31,.95);
  --accent: #69a7ff;
  --accent-strong: #5597f4;
  --button-bg: #326fbd;
  --button-bg-hover: #295fa4;
  --shadow-soft: 0 18px 50px rgba(0,5,16,.42);
}

.theme-preview {
  box-shadow: inset 0 0 0 1px rgba(127,127,127,.08);
}
.theme-preview::before {
  content: "";
  position: absolute;
  right: 11px;
  top: 11px;
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: var(--preview-accent);
  box-shadow: 0 4px 12px color-mix(in srgb, var(--preview-accent) 28%, transparent);
}
.theme-preview::after { right: 48px; }
.theme-preview.frost { background: #f3f6fa; color: #0d1420; --preview-accent: #3565d8; }
.theme-preview.porcelain { background: #f7f1e7; color: #1c1813; --preview-accent: #6958c6; }
.theme-preview.graphite { background: #0b0c0e; color: #f7f7f8; --preview-accent: #7f91ff; }
.theme-preview.midnight { background: #07111f; color: #f3f8ff; --preview-accent: #69a7ff; }

.scale-btn.is-selected,
.chip.is-selected {
  background: var(--button-bg);
  color: var(--button-text);
  border-color: var(--button-bg);
}

/* Compound labels always separate title and supporting copy. */
.choice-card__title,
.choice-card__desc { display: block; }
.choice-card__desc { margin-top: 3px; }

/* App header remains inside the unlocked experience. */
.app-brand-button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 0;
  cursor: pointer;
}

/* After-midnight date chooser. */
.date-choice-grid { max-width: 520px; margin: 28px auto 0; }
.date-choice {
  width: 100%;
  color: var(--text);
  text-align: left;
  font: inherit;
}
.date-choice-arrow { color: var(--accent); border-color: transparent; font-size: 22px; }

/* Trends controls. */
.trend-controls { display: flex; gap: 12px; align-items: center; }
.trend-controls .field-label { margin: 0; }
.trend-controls select,
.modal-select,
.time-input {
  border: 1px solid var(--border);
  background: var(--surface-raised);
  color: var(--text);
  border-radius: 12px;
  padding: 10px 12px;
}
.trend-controls select { margin-left: auto; max-width: 65%; }
.trend-range { justify-content: flex-start; margin: 18px 0; }
.trend-change { letter-spacing: -.03em; margin: 8px 0; }
.muted-copy { margin: 0; color: var(--text-2); }

/* Settings/reminders. */
.settings-row.is-dimmed { opacity: .58; }
.time-input { min-width: 112px; }
.internal-back { padding-left: 0; margin-bottom: 18px; }
.in-app-prose h2 { margin-top: 34px; }

/* Report configuration and preview. */
.modal-select { width: 100%; }
.report-field-heading { margin-top: 18px; }
.report-metric-list { max-height: 260px; overflow: auto; }
.report-note-toggle { border: 1px solid var(--border); border-radius: 16px; margin-top: 16px; }
.report-toolbar { margin-bottom: 22px; }
.report-toolbar__actions { display: flex; gap: 10px; flex-wrap: wrap; }
.report-toolbar > p { color: var(--text-3); font-size: 12px; margin: 10px 0 0; }
.report-preview { overflow-x: auto; padding-bottom: 30px; }
.report-document {
  background: #fff;
  color: #111318;
  border-radius: 24px;
  padding: 42px;
  box-shadow: var(--shadow-soft);
  min-width: 640px;
}
.report-header { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; border-bottom: 1px solid #e5e7eb; padding-bottom: 24px; }
.report-brand { font-weight: 700; color: #3565d8; }
.report-header h1 { margin: 7px 0 8px; font-size: 36px; letter-spacing: -.04em; }
.report-header p { color: #667085; margin: 0; }
.report-badge { border: 1px solid #d9dee7; border-radius: 999px; padding: 8px 12px; font-size: 12px; white-space: nowrap; }
.report-disclaimer { margin: 24px 0; padding: 16px; border-radius: 14px; background: #f6f8fb; display: grid; gap: 4px; }
.report-disclaimer span { color: #667085; font-size: 14px; }
.report-summary-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin: 24px 0; }
.report-summary-card { border: 1px solid #e5e7eb; border-radius: 16px; padding: 16px; }
.report-summary-card span,.report-summary-card small { display: block; color: #667085; font-size: 12px; }
.report-summary-card strong { display: block; font-size: 22px; margin: 5px 0; }
.report-section { margin-top: 34px; }
.report-section h2 { font-size: 20px; margin-bottom: 12px; }
.report-document table { width: 100%; border-collapse: collapse; }
.report-document th,.report-document td { text-align: left; border-bottom: 1px solid #e5e7eb; padding: 10px 8px; font-size: 13px; vertical-align: top; }
.report-document th { font-size: 11px; text-transform: uppercase; letter-spacing: .04em; color: #667085; }
.report-note { white-space: pre-wrap; max-width: 320px; }
.report-footer { margin-top: 34px; padding-top: 16px; border-top: 1px solid #e5e7eb; color: #667085; font-size: 11px; }

@media (max-width: 680px) {
  .trend-controls { align-items: stretch; flex-direction: column; }
  .trend-controls select { margin-left: 0; max-width: none; width: 100%; }
  .report-document { padding: 28px; }
}

@media print {
  @page { size: A4; margin: 15mm; }
  .skip-link,
  .app-topbar,
  .bottom-nav,
  .report-toolbar,
  .modal-backdrop { display: none !important; }
  html, body { background: #fff !important; }
  .app-shell { display: block !important; padding: 0 !important; min-height: auto !important; }
  .app-main { max-width: none !important; padding: 0 !important; margin: 0 !important; }
  .report-preview { overflow: visible !important; padding: 0 !important; }
  .report-document { min-width: 0 !important; width: auto !important; margin: 0 !important; padding: 0 !important; box-shadow: none !important; border-radius: 0 !important; }
  .report-header,
  .report-disclaimer,
  .report-summary-grid,
  .report-summary-card,
  .report-footer { break-inside: avoid; }
  .report-records tr { break-inside: avoid; }
  .report-section { break-before: auto; }
}