/* ============================================================
   SpineOS  |  Public Website
   Consumes shared tokens from packages/design/tokens.css.
   Overrides --heading-font for editorial serif headings.
   ============================================================ */

/* ---- Editorial overrides ---- */
:root {
  --heading-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
}

body[data-theme="rust"] {
  --accent:      #9a3412;
  --accent-soft: rgba(154, 52, 18, 0.10);
  --accent-ink:  #7c2d12;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, var(--accent-soft), transparent 28%),
    radial-gradient(circle at top right, rgba(154, 52, 18, 0.08), transparent 24%),
    var(--bg);
}

a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { border: 0; cursor: pointer; }

/* ============================================================
   PAGE SHELL
   ============================================================ */

.page-shell {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: var(--gap-lg) 0 var(--gap-2xl);
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: var(--gap);
  align-items: stretch;
  margin-bottom: var(--gap);
  animation: rise 700ms ease both;
}

.hero-copy,
.panel,
.glass {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: var(--gap-xl);
  background: var(--surface-strong);
}

.hero-copy h1,
.section-heading h2 {
  margin: 0;
  font-family: var(--heading-font);
  line-height: 1.02;
}

.hero-copy h1 {
  font-size: clamp(2.8rem, 5vw, 5rem);
  max-width: 10ch;
  letter-spacing: -0.03em;
}

.hero-copy p {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.6;
}

.hero-panel {
  padding: var(--gap-lg);
  background: var(--surface);
  backdrop-filter: blur(18px);
}

.glass,
.panel {
  background: var(--surface);
  backdrop-filter: blur(14px);
}

/* ============================================================
   SECTION NAV
   ============================================================ */

.section-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
  padding: var(--gap-sm);
  margin-bottom: var(--gap);
  position: sticky;
  top: var(--gap-sm);
  z-index: 10;
}

.section-nav a,
.segmented button,
.mode-toggle button,
.choice-chip {
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  background: var(--surface-muted);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: transform var(--ease), background var(--ease), border-color var(--ease);
}

.section-nav a {
  padding: 10px var(--gap-sm);
  font-size: 0.92rem;
  font-weight: 500;
}

.section-nav a:hover,
.segmented button:hover,
.mode-toggle button:hover,
.choice-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.35);
}

/* ============================================================
   FEATURE GRID — equal columns
   ============================================================ */

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  margin-bottom: var(--gap);
}

.panel {
  padding: var(--gap-lg);
}

.wide-panel {
  margin-bottom: var(--gap);
}

.section-heading {
  margin-bottom: var(--gap-md);
}

/* ============================================================
   TYPOGRAPHY HELPERS
   ============================================================ */

.eyebrow,
.label,
small {
  color: var(--muted);
  letter-spacing: 0.05em;
}

.eyebrow {
  display: inline-block;
  margin-bottom: var(--gap-xs);
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 600;
}

/* ============================================================
   FLEX ROWS
   ============================================================ */

.hero-actions,
.queue-pills,
.choice-row,
.comparison-stack,
.stack,
.event-stack {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-xs);
}

/* ============================================================
   PILLS
   ============================================================ */

.pill {
  display: inline-flex;
  align-items: center;
  padding: var(--gap-xs) var(--gap-sm);
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  border: 1px solid rgba(15, 118, 110, 0.18);
  font-size: 0.92rem;
  font-weight: 500;
}

.pill.ghost {
  background: transparent;
}

.pill-link {
  color: var(--ink);
  text-decoration: none;
  transition: transform var(--ease);
}

.pill-link:hover { transform: translateY(-1px); }

.pill.small {
  font-size: 0.84rem;
  padding: 6px 10px;
}

/* ============================================================
   METRIC / SUMMARY / ARCHITECTURE GRIDS
   ============================================================ */

.metric-grid,
.summary-grid,
.architecture-grid,
.clinician-grid,
.recovery-grid {
  display: grid;
  gap: var(--gap-sm);
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  height: 100%;
}

.metric-grid div,
.summary-grid article,
.architecture-grid article,
.comparison-card,
.timeline-card,
.callout,
.measurement-row,
.event-card,
.note-card,
.protocol-card,
.queue-card {
  padding: var(--gap-md);
  border-radius: var(--radius-md);
  background: var(--surface-muted);
  border: 1px solid var(--line);
}

.metric-grid strong,
.summary-grid strong,
.comparison-card strong,
.measurement-row strong {
  display: block;
  font-size: 1.18rem;
  margin: 6px 0 2px;
}

/* ============================================================
   FORMS
   ============================================================ */

.portal-form,
.protocol-list,
.note-list {
  display: grid;
  gap: var(--gap-sm);
}

.field-grid {
  display: grid;
  gap: var(--gap-sm);
}

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label,
.choice-block {
  display: grid;
  gap: var(--gap-xs);
}

input,
select,
textarea {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  padding: var(--gap-sm) var(--gap-md);
  background: var(--surface-strong);
  color: var(--ink);
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(15, 118, 110, 0.36);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

textarea { resize: vertical; }
input[type="range"] { padding: 0; }

.segmented,
.mode-toggle {
  display: flex;
  gap: var(--gap-xs);
}

.segmented button,
.mode-toggle button,
.choice-chip {
  padding: 10px var(--gap-sm);
  font: inherit;
  font-size: 0.92rem;
}

.segmented button.active,
.mode-toggle button.active,
.choice-chip.active,
.improved {
  background: var(--accent-soft);
  border-color: rgba(15, 118, 110, 0.3);
}

/* ============================================================
   PRIVACY BANNERS
   ============================================================ */

.privacy-banner {
  margin: var(--gap-md) 0;
  padding: var(--gap-md);
  border-radius: var(--radius-md);
  background: rgba(154, 52, 18, 0.08);
  border: 1px solid rgba(154, 52, 18, 0.16);
}

.privacy-banner.clinical {
  background: var(--accent-soft);
  border-color: rgba(15, 118, 110, 0.22);
}

/* ============================================================
   MEASUREMENT WORKSPACE
   ============================================================ */

.measurement-table,
.comparison-stack,
.clean-list,
.protocol-list,
.event-stack,
.timeline-card {
  display: grid;
  gap: var(--gap-sm);
}

.measurement-lab {
  margin-top: var(--gap);
  display: grid;
  gap: var(--gap-sm);
}

.measurement-lab-toolbar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-sm);
  align-items: end;
}

.measurement-lab-toolbar label:first-child {
  grid-column: 1 / -1;
}

.measurement-lab-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap-sm);
}

.measurement-lab-stage,
.measurement-results {
  display: grid;
  gap: var(--gap-sm);
}

.file-picker input[type="file"] {
  padding: 10px var(--gap-sm);
}

.ghost-button {
  height: 48px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--surface-muted);
  font: inherit;
  font-size: 0.92rem;
  cursor: pointer;
  transition: transform var(--ease), border-color var(--ease);
}

.ghost-button:hover {
  transform: translateY(-1px);
  border-color: rgba(15, 118, 110, 0.35);
}

.stage-header {
  display: flex;
  justify-content: space-between;
  gap: var(--gap-sm);
  align-items: start;
}

.stage-header p {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.stage-chip {
  padding: var(--gap-xs) var(--gap-sm);
  border-radius: var(--radius-pill);
  background: var(--accent-soft);
  border: 1px solid rgba(15, 118, 110, 0.2);
  white-space: nowrap;
  font-size: 0.88rem;
  font-weight: 600;
}

.measurement-stage-scroll {
  overflow: auto;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.10);
  background: #171c1d;
  padding: var(--gap-md);
}

.measurement-stage {
  position: relative;
  min-width: 100%;
  cursor: crosshair;
}

.measurement-stage img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.measurement-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.measure-point {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: var(--radius-pill);
  border: 2px solid rgba(255, 255, 255, 0.95);
  background: rgba(154, 52, 18, 0.9);
  transform: translate(-50%, -50%);
  box-shadow: 0 0 0 4px rgba(154, 52, 18, 0.22);
}

.measure-point.current-tool {
  background: rgba(15, 118, 110, 0.95);
  box-shadow: 0 0 0 4px rgba(15, 118, 110, 0.22);
}

.measure-point.calibration-tool {
  width: 12px;
  height: 12px;
}

.measurement-dropzone {
  min-height: 300px;
  display: grid;
  place-items: center;
  text-align: center;
  gap: var(--gap-xs);
  padding: var(--gap-lg);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--line-strong);
  background: var(--surface-muted);
}

.measurement-dropzone p {
  max-width: 46ch;
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.measurement-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap-sm);
  align-items: center;
}

/* ============================================================
   CLINICIAN / RECOVERY / ARCHITECTURE GRIDS
   ============================================================ */

.clinician-grid {
  grid-template-columns: 1.2fr 0.9fr 0.8fr;
}

.recovery-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.note-list div,
.protocol-list div,
.timeline-entry,
.alert-entry {
  display: grid;
  gap: 6px;
}

dt { font-weight: 700; }

dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

pre {
  margin: 0;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.86rem;
  line-height: 1.45;
  font-family: var(--font-mono);
}

.timeline-entry,
.alert-entry {
  padding-bottom: var(--gap-sm);
  border-bottom: 1px solid var(--line);
}

.timeline-entry:last-child,
.alert-entry:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.clean-list {
  margin: 0;
  padding-left: var(--gap);
  line-height: 1.7;
}

.licensing-note p,
.callout p,
.comparison-card p,
.architecture-grid p,
.protocol-list p,
.alert-entry p,
.muted-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

/* ============================================================
   ANIMATION
   ============================================================ */

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .hero,
  .feature-grid,
  .clinician-grid,
  .recovery-grid {
    grid-template-columns: 1fr;
  }

  .measurement-lab-grid,
  .measurement-lab-toolbar {
    grid-template-columns: 1fr;
  }

  .measurement-lab-toolbar label:first-child {
    grid-column: auto;
  }

  .measurement-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 1280px);
    padding-top: var(--gap-md);
  }

  .hero-copy,
  .panel,
  .hero-panel {
    padding: var(--gap);
    border-radius: var(--radius-lg);
  }

  .two-up,
  .metric-grid,
  .measurement-row {
    grid-template-columns: 1fr;
  }

  .section-nav {
    position: static;
  }

  .hero-copy h1 {
    font-size: 2.2rem;
  }
}