:root {
  --bg: #f3f6fb;
  --surface: #ffffff;
  --surface-alt: #eef2fa;
  --text: #132033;
  --muted: #5a6880;
  --line: #d3ddef;
  --accent: #1698c6;
  --accent-strong: #0f7ea5;
  --good: #0c8f57;
  --warn: #bb6f11;
  --bad: #b33a3a;
  --radius: 14px;
  --shadow: 0 14px 36px rgba(10, 28, 46, 0.1);

  /* Animation Tokens */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --transition-smooth: all 0.4s var(--ease-out);
  --transition-spring: all 0.5s var(--ease-spring);
}

@keyframes slideUpFade {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes resultPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.01); box-shadow: 0 0 25px color-mix(in srgb, var(--good) 15%, transparent); }
  100% { transform: scale(1); }
}

html[data-theme="dark"] {
  --bg: #0d1424;
  --surface: #111c31;
  --surface-alt: #16253e;
  --text: #e7eefc;
  --muted: #a2b4d4;
  --line: #2a3a58;
  --accent: #30bfd6;
  --accent-strong: #1e98b2;
  --good: #38d083;
  --warn: #efac4a;
  --bad: #f47171;
  --shadow: 0 18px 40px rgba(2, 8, 20, 0.52);
}

* {
  box-sizing: border-box;
  transition: background-color 0.3s var(--ease-out), border-color 0.3s var(--ease-out), box-shadow 0.3s var(--ease-out);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: "Inter", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 0 0, rgba(22, 152, 178, 0.16), transparent 40%),
    var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
  letter-spacing: -0.011em;
}

button, .segmented-control label, .tooth-input {
  transition: var(--transition-fast);
}

button:active, .segmented-control label:active {
  transform: scale(0.97);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  animation: slideUpFade 0.6s var(--ease-out) both;
}

.panel:nth-child(odd) { animation-delay: 0.1s; }
.panel:nth-child(even) { animation-delay: 0.2s; }

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 1rem;
  text-decoration: none;
}

.logo-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  font-weight: 700;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-links {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
}

.nav-links a:hover {
  background: var(--surface);
  color: var(--text);
}

.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}

.hamburger span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
}

.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 28px 20px 10px;
  width: 100%;
}

.hero-inner {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent) 10%, var(--surface)),
    var(--surface)
  );
  box-shadow: var(--shadow);
  padding: clamp(18px, 4vw, 34px);
}

.kicker {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-size: 0.77rem;
}

h1 {
  margin: 4px 0;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
}

.subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-cta {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  padding: 10px 14px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--surface);
}

.theme-toggle {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 14px;
  background: var(--surface);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 12px 20px 42px;
  display: grid;
  gap: 16px;
  width: 100%;
}

.page > * {
  min-width: 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(190px, 1fr));
  gap: 10px;
}

.intro-grid article {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-alt);
  padding: 10px;
}

.intro-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.how-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  color: var(--muted);
}

.science-panel {
  background: var(--surface);
  border: 1px solid var(--line);
}

.science-content {
  display: grid;
  gap: 20px;
  margin-top: 16px;
}

.science-block h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--accent-strong);
}

.science-block p {
  margin: 0 0 12px;
  line-height: 1.6;
  color: var(--muted);
}

.science-block ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.science-block li {
  margin-bottom: 6px;
  line-height: 1.4;
}

.science-block li strong {
  color: var(--text);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  min-width: 0;
}

h2,
h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.muted,
.hint {
  color: var(--muted);
}

.hint {
  margin-top: 0;
  font-size: 0.92rem;
}

.patient-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.86rem;
  font-weight: 600;
}

input {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface-alt);
  color: var(--text);
  padding: 10px;
}

input:focus {
  outline: 2px solid color-mix(in srgb, var(--accent) 60%, transparent);
  border-color: var(--accent);
}

.outlier-legend {
  display: flex;
  gap: 20px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--muted);
  flex-wrap: wrap;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid var(--line);
}

.swatch.outlier-low { background: #f1f9ff; border-color: var(--accent); }
.swatch.outlier-high { background: #fff8f1; border-color: var(--warn); }

.tooth-table-wrap {
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--line) var(--surface-alt);
}

.tooth-table-wrap::-webkit-scrollbar {
  height: 10px;
}

.tooth-table-wrap::-webkit-scrollbar-track {
  background: var(--surface-alt);
  border-radius: 8px;
}

.tooth-table-wrap::-webkit-scrollbar-thumb {
  background-color: var(--line);
  border-radius: 8px;
  border: 2px solid var(--surface-alt);
}

.tooth-table-wrap::-webkit-scrollbar-thumb:hover {
  background-color: var(--muted);
}

.tooth-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
}

.tooth-table th,
.tooth-table td {
  border: 1px solid var(--line);
  padding: 8px;
  text-align: center;
}

.tooth-table th {
  background: var(--surface-alt);
  font-size: 0.8rem;
}

.tooth-table td {
  background: var(--surface);
}

.tooth-input {
  width: 68px;
  text-align: center;
  padding: 8px 6px;
  transition: all 0.2s ease;
}

.tooth-input.outlier-high {
  background-color: #fff8f1; /* Subtle amber */
  border-color: var(--warn);
}

html[data-theme="dark"] .tooth-input.outlier-high {
  background-color: #2c1d10;
  border-color: var(--warn);
}

.tooth-input.outlier-low {
  background-color: #f1f9ff; /* Subtle blue */
  border-color: var(--accent);
}

html[data-theme="dark"] .tooth-input.outlier-low {
  background-color: #0e1e2e;
  border-color: var(--accent);
}

.summary-scale {
  margin-top: 20px;
  padding: 15px;
  background: var(--surface);
  border-radius: 10px;
  border: 1px solid var(--line);
  max-width: 600px;
}

.summary-scale .discrepancy-bar {
  height: 10px;
}

.summary-scale .bar-marker {
  height: 18px;
  width: 18px;
}

.discrepancy-bar-wrap {
  margin: 10px 0 16px;
}

.discrepancy-bar {
  height: 8px;
  background: var(--line);
  border-radius: 4px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bar-center {
  height: 12px;
  width: 2px;
  background: var(--muted);
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.bar-marker {
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: 3px solid #fff;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: left 0.8s var(--ease-spring), background-color 0.3s ease;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
  z-index: 2;
}
.bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--muted);
  margin-top: 4px;
  font-weight: 600;
  text-transform: uppercase;
}

.actions {
  margin-top: 12px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.ghost {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.ghost:hover {
  background: var(--surface-alt);
  transform: translateY(-2px);
}

.ghost:active {
  transform: scale(0.96);
}

.primary-action {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transition: var(--transition-smooth);
}

.primary-action:hover {
  background: var(--accent-strong);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px -3px rgba(0,0,0,0.1);
}

.primary-action:active {
  transform: scale(0.96);
}

.primary-action:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.clinical-summary-card {
  margin-top: 30px;
  grid-column: 1 / -1;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 8%, var(--surface-alt)), var(--surface-alt));
  border-left: 4px solid var(--accent);
}

.diagnosis-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 30px;
  margin-top: 16px;
}

.questionnaire {
  display: grid;
  gap: 20px;
}

.q-row p {
  margin: 0 0 8px;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text);
}

.segmented-control {
  display: inline-flex;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  padding: 2px;
  gap: 2px;
  flex-wrap: wrap;
}

.segmented-control label {
  flex: 1;
  min-width: max-content;
  text-align: center;
  cursor: pointer;
  position: relative;
}

.segmented-control input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.segmented-control span {
  display: block;
  padding: 8px 12px;
  border-radius: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--muted);
  transition: all 0.2s ease;
  user-select: none;
}

.segmented-control input[type="radio"]:checked + span {
  background: var(--surface);
  color: var(--accent);
  box-shadow: 0 2px 4px rgba(0,0,0,0.05);
  font-weight: 600;
}

.segmented-control label:hover input[type="radio"]:not(:checked) + span {
  background: color-mix(in srgb, var(--accent) 15%, var(--surface-alt));
  color: var(--accent-strong);
}

.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  box-shadow: var(--shadow);
  border-radius: 8px;
  overflow: hidden;
}

.ref-table th, .ref-table td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: center;
}

.ref-table th {
  background: var(--surface-alt);
  font-weight: 600;
  color: var(--accent-strong);
}

.ref-table tr:hover td {
  background: color-mix(in srgb, var(--surface-alt) 50%, transparent);
}

.micro-hint {
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 8px;
}

.ref-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.ref-link:hover {
  text-decoration: underline;
}

.conclusion-box {
  margin-top: 24px;
  padding: 24px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--good) 12%, var(--surface)), var(--surface));
  border: 2px solid var(--good);
  border-radius: 16px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
  position: relative;
  overflow: hidden;
  animation: resultPulse 3s var(--ease-out) infinite alternate;
}

.conclusion-box h3 {
  margin-bottom: 12px;
  color: var(--good);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
  font-weight: 700;
}

.technical-details-disclosure {
  margin-top: 30px;
  opacity: 0.85;
}

.technical-details-disclosure summary {
  padding: 14px;
  font-weight: 700;
  text-align: center;
  color: var(--muted);
  transition: var(--transition-smooth);
}

.technical-details-disclosure[open] summary {
  color: var(--accent);
}

.technical-details-disclosure[open] > *:not(summary) {
  animation: slideUpFade 0.5s var(--ease-out) both;
}

.split > div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
  transition: var(--transition-smooth);
}

.split > div.focus-side {
  background: color-mix(in srgb, var(--accent) 5%, var(--surface));
  border-color: var(--accent);
  box-shadow: 0 0 15px color-mix(in srgb, var(--accent) 15%, transparent);
  transform: scale(1.02);
  z-index: 1;
}

.split > div.dim-side {
  opacity: 0.4;
  filter: grayscale(0.5);
  transform: scale(0.98);
}

.clinical-summary {
  margin: 0;
  line-height: 1.5;
}

.discrepancy-bar-container {
  margin-top: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 12px;
  border-radius: 10px;
}

.bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.bar-track {
  height: 8px;
  background: var(--surface-alt);
  border-radius: 4px;
  position: relative;
  border: 1px solid var(--line);
}

.bar-marker {
  width: 18px;
  height: 18px;
  background: var(--accent);
  border: 3px solid #fff;
  border-radius: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  transition: left 0.8s var(--ease-spring), background-color 0.3s ease;
  box-shadow: 0 3px 10px rgba(0,0,0,0.2);
  z-index: 2;
}

.tooth-input.outlier-low {
  background-color: color-mix(in srgb, var(--accent) 15%, var(--surface-alt));
  border-color: var(--accent);
}

.tooth-input.outlier-high {
  background-color: color-mix(in srgb, var(--warn) 15%, var(--surface-alt));
  border-color: var(--warn);
}

.clinical-summary {
  margin: 0;
...
  font-size: 1.05rem;
  line-height: 1.5;
  font-weight: 500;
  color: var(--text);
}

.references-panel {
  margin-top: 10px;
}

.reference-list {
  display: grid;
  gap: 16px;
  margin-top: 12px;
}

.reference-item p {
  margin: 0 0 4px;
  font-size: 0.9rem;
  line-height: 1.4;
}

.reference-item a {
  font-size: 0.82rem;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.reference-item a:hover {
  text-decoration: underline;
}

.acknowledgment {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 0.84rem;
  font-style: italic;
  color: var(--muted);
}

.summary-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr));
  gap: 10px;
}

.summary-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: var(--surface-alt);
}

.label {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.value {
  margin: 4px 0 0;
  font-size: 1.06rem;
  font-weight: 700;
}

.ratio-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(320px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.ratio-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  background: var(--surface-alt);
}

.ratio {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
}

.status {
  margin: 4px 0 12px;
  color: var(--muted);
}

.status.good {
  color: var(--good);
}

.status.warn {
  color: var(--warn);
}

.status.bad {
  color: var(--bad);
}

.detail-disclosure {
  margin-top: 12px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.detail-disclosure summary {
  cursor: pointer;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent);
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.detail-disclosure summary::before {
  content: "â–¶";
  font-size: 0.7rem;
  transition: transform 0.2s ease;
}

.detail-disclosure[open] summary::before {
  transform: rotate(90deg);
}

.detail-disclosure summary:hover {
  color: var(--accent-strong);
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.split > div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px;
}

.mini {
  margin: 2px 0 8px;
  font-size: 0.98rem;
  font-weight: 700;
}

.notice {
  margin: 12px 0 0;
  color: var(--warn);
  font-size: 0.88rem;
}

.testimonials {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  padding: 16px;
}

.testimonials-head {
  margin-bottom: 10px;
}

.testimonials-marquee {
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  gap: 10px;
  width: max-content;
}

.testimonial-card {
  width: min(330px, 85vw);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-alt);
  padding: 12px;
}

.quote {
  margin: 0 0 10px;
  color: var(--text);
  font-style: italic;
}

.author {
  margin: 0;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer {
  border-top: 1px solid var(--line);
  margin-top: 22px;
  background: var(--surface);
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 26px 20px 34px;
  display: grid;
  gap: 12px;
  text-align: center;
  width: 100%;
}

.footer-brand {
  margin: 0;
  font-weight: 700;
  font-size: 1.05rem;
  display: inline-flex;
  justify-self: center;
  align-items: center;
  gap: 10px;
}

.footer-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-links a {
  color: var(--text);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  border: 1px solid var(--line);
  background: var(--surface-alt);
  border-radius: 10px;
  padding: 8px 12px;
}

.footer-links a:hover {
  color: var(--text);
  border-color: var(--accent);
}

.footer-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.pdf-report {
  position: absolute;
  left: 0;
  top: -9999px; /* Absolute is safer for html2canvas than fixed */
  width: 210mm;
  min-height: 297mm;
  background: #ffffff !important;
  color: #000000 !important;
  padding: 12mm;
  z-index: -100;
  opacity: 1; /* Keeping opacity 1 is CRITICAL for canvas capture */
  pointer-events: none;
}

.pdf-report * {
  color: #000 !important;
}

.pdf-report h2,
.pdf-report h3 {
  margin: 0 0 6px;
}

.pdf-meta {
  margin: 0 0 4px;
  font-size: 12px;
}

.pdf-summary-box {
  background: #f0f7ff;
  border-left: 4px solid #1698c6;
  padding: 10px;
  margin-bottom: 12px;
}

.pdf-summary-box h3 {
  margin: 0 0 4px;
  font-size: 14px;
}

.pdf-summary-box p {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
}

.pdf-conclusion-box {
  background: #f0fdf4;
  border-left: 4px solid #0c8f57;
  padding: 10px;
  margin-bottom: 12px;
}

.pdf-conclusion-box h3 {
  margin: 0 0 4px;
  font-size: 14px;
  color: #0c8f57;
}

.pdf-conclusion-box p {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
}

.pdf-table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 12px;
  font-size: 12px;
}

.pdf-table th,
.pdf-table td {
  border: 1px solid #c8c8c8;
  padding: 6px;
  text-align: left;
}

.pdf-note {
  margin-top: 12px;
  font-size: 11px;
  color: #444;
}

@media (max-width: 980px) {
  .hamburger {
    display: inline-flex;
  }

  .nav-right {
    position: absolute;
    top: calc(100% + 8px);
    right: 20px;
    width: min(320px, calc(100vw - 40px));
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface);
    padding: 12px;
    box-shadow: var(--shadow);
  }

  .nav-container.menu-open .nav-right {
    display: flex;
  }

  .nav-links {
    flex-direction: column;
  }

  .theme-toggle {
    width: 100%;
  }

  .patient-grid {
    grid-template-columns: 1fr;
  }

  .intro-grid {
    grid-template-columns: 1fr;
  }

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

  .ratio-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-container,
  .hero,
  .page {
    padding-left: 14px;
    padding-right: 14px;
  }

  .footer-inner {
    padding-left: 14px;
    padding-right: 14px;
  }

  .panel {
    padding: 14px;
  }

  .theme-toggle {
    padding: 8px 12px;
    font-size: 0.8rem;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }
}