/* ==========================================================================
   Sentio — Design tokens & base
   ========================================================================== */

:root {
  /* Surfaces */
  --surface: #0e1514;
  --surface-dim: #0e1514;
  --surface-bright: #343a39;
  --surface-container-lowest: #090f0e;
  --surface-container-low: #171d1c;
  --surface-container: #1b2120;
  --surface-container-high: #252b2a;
  --surface-container-highest: #303635;
  --background: #0e1514;
  --on-background: #dee4e2;
  --on-surface: #dee4e2;
  --on-surface-variant: #bbc9c7;
  --outline: #869491;
  --outline-variant: #3c4947;

  /* Brand */
  --primary: #6feee1;
  --primary-container: #4fd1c5;
  --on-primary: #003733;
  --secondary: #bcc2ff;
  --tertiary: #e0d3ff;
  --gradient-premium: linear-gradient(135deg, #4fd1c5 0%, #6c7bf7 50%, #a78bfa 100%);

  /* Elevation */
  --hairline: 1px solid rgba(255, 255, 255, 0.06);
  --ambient-glow: 0 0 80px 20px rgba(79, 209, 197, 0.1);
  --glass: rgba(14, 21, 20, 0.6);

  /* Shape */
  --radius-sm: 0.25rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-card: 1.5rem;
  --radius-full: 9999px;

  /* Spacing */
  --container-margin: 20px;
  --gutter: 12px;
  --stack-sm: 8px;
  --stack-md: 16px;
  --stack-lg: 32px;
  --max-width: 72rem;
  --header-height: 4.25rem;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);

  /* Motion */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 600ms;
}

@media (max-width: 479px) {
  :root {
    --container-margin: 16px;
    --radius-card: 1.25rem;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

#product,
#features,
#science,
#shop,
#waitlist,
#feature-details {
  scroll-margin-top: calc(var(--header-height) + var(--safe-top) + 12px);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-family: Inter, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--on-surface);
  background: var(--background);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-left: var(--safe-left);
  padding-right: var(--safe-right);
}

body.is-nav-open {
  overflow: hidden;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button,
input {
  font: inherit;
}

::selection {
  background: var(--primary-container);
  color: var(--on-primary);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: var(--container-margin);
  top: -100%;
  z-index: 100;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  background: var(--primary);
  color: var(--on-primary);
}

.skip-link:focus {
  top: var(--stack-md);
}

.material-symbols-outlined {
  font-variation-settings: "FILL" 0, "wght" 300, "GRAD" 0, "opsz" 24;
  font-size: 20px;
  line-height: 1;
}

/* ==========================================================================
   Type
   ========================================================================== */

.section-label {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  line-height: 16px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.headline {
  margin: 0;
  font-size: 28px;
  font-weight: 300;
  line-height: 34px;
  letter-spacing: -0.01em;
  color: var(--on-surface);
}

@media (min-width: 768px) {
  .headline {
    font-size: 32px;
    line-height: 40px;
  }
}

.body {
  margin: 0;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  color: var(--on-surface-variant);
}

.data-label {
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: opacity 200ms ease;
  white-space: nowrap;
}

.btn:hover {
  opacity: 0.9;
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--gradient-premium);
  color: var(--background);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  padding: 0.75rem 2rem;
}

.btn--sm {
  padding: 0.5rem 1.5rem;
}

/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  padding-top: var(--safe-top);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: background 300ms ease, border-color 300ms ease;
}

.site-header.is-scrolled,
.site-header.is-menu-open {
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.nav {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--stack-md);
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: var(--header-height);
  padding: 0.75rem var(--container-margin);
}

.brand {
  font-size: clamp(1.5rem, 4vw, 1.75rem);
  font-weight: 300;
  letter-spacing: -0.01em;
  line-height: 1;
  color: var(--on-surface);
}

.brand--footer {
  color: var(--primary);
  font-size: 1.5rem;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  margin-right: -0.35rem;
  padding: 0;
  border: var(--hairline);
  border-radius: var(--radius-md);
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle__bar {
  display: block;
  width: 18px;
  height: 1.5px;
  margin-inline: auto;
  background: var(--on-surface);
  transition: transform 250ms var(--ease-out), opacity 200ms ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  transform: translateY(-3.75px) rotate(-45deg);
}

.nav-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: calc(-1 * var(--safe-left));
  right: calc(-1 * var(--safe-right));
  flex-direction: column;
  gap: var(--stack-md);
  max-height: calc(100dvh - var(--header-height) - var(--safe-top));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: var(--stack-md) var(--container-margin) calc(var(--stack-lg) + var(--safe-bottom));
  background: color-mix(in srgb, var(--surface) 98%, transparent);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-menu.is-open {
  display: flex;
}

.nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.85rem 0;
  color: var(--on-surface-variant);
  font-size: 1.0625rem;
  transition: color 200ms ease, opacity 200ms ease;
}

.nav-link:hover {
  color: var(--on-surface);
  opacity: 0.9;
}

.nav-link.is-active {
  color: var(--primary);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--primary);
  align-self: flex-start;
}

.nav-cta {
  width: 100%;
  margin-top: 0.5rem;
  padding-block: 0.85rem;
}

@media (min-width: 768px) {
  .nav {
    padding-block: 1rem;
  }

  .nav-toggle {
    display: none;
  }

  .nav-menu {
    position: static;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: flex-end;
    flex: 1;
    gap: 2rem;
    max-height: none;
    overflow: visible;
    padding: 0;
    background: transparent;
    backdrop-filter: none;
    border: none;
  }

  .nav-links {
    flex-direction: row;
    gap: 2rem;
    margin-inline: auto;
  }

  .nav-link {
    display: inline;
    padding: 0;
    font-size: 16px;
  }

  .nav-link.is-active {
    padding-bottom: 2px;
  }

  .nav-cta {
    width: auto;
    margin-top: 0;
    padding-block: 0.5rem;
  }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100svh;
  padding:
    calc(var(--header-height) + var(--safe-top) + 3.5rem)
    var(--container-margin)
    calc(3.5rem + var(--safe-bottom));
  overflow: hidden;
}

@media (min-width: 768px) {
  .hero {
    min-height: min(100vh, 900px);
    padding: 8rem var(--container-margin) 6rem;
  }
}

.hero__backdrop {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 18%, color-mix(in srgb, var(--primary) 16%, transparent), transparent 70%),
    radial-gradient(ellipse 45% 40% at 85% 70%, color-mix(in srgb, #6c7bf7 12%, transparent), transparent 65%),
    radial-gradient(ellipse 40% 35% at 12% 75%, color-mix(in srgb, #a78bfa 10%, transparent), transparent 60%),
    linear-gradient(180deg, var(--surface-container-lowest) 0%, var(--background) 55%, var(--surface) 100%);
}

.hero__backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.35;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 75%);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 56rem;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--stack-md);
}

@media (min-width: 768px) {
  .hero__content {
    gap: var(--stack-lg);
  }
}

.hero__label {
  color: var(--primary);
}

.hero__title {
  margin: 0;
  max-width: 48rem;
  font-size: clamp(1.875rem, 8vw, 4rem);
  font-weight: 200;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--on-surface);
  text-wrap: balance;
}

.hero__lede {
  margin: 0;
  max-width: 42rem;
  font-size: 15px;
  line-height: 1.55;
  color: var(--on-surface-variant);
  text-wrap: pretty;
}

@media (min-width: 768px) {
  .hero__lede {
    font-size: 16px;
    line-height: 24px;
  }
}

.waitlist {
  width: 100%;
  max-width: 28rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

.waitlist__input {
  flex: 1;
  width: 100%;
  min-height: 3rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--outline-variant);
  background: color-mix(in srgb, var(--surface-container-lowest) 80%, transparent);
  backdrop-filter: blur(12px);
  color: var(--on-surface);
  font-size: 16px; /* avoid iOS zoom on focus */
  transition: border-color 200ms ease;
}

.waitlist__input::placeholder {
  color: color-mix(in srgb, var(--on-surface-variant) 70%, transparent);
}

.waitlist__input:focus {
  outline: none;
  border-color: var(--primary);
}

.waitlist .btn {
  width: 100%;
  min-height: 3rem;
}

.waitlist__hint {
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  opacity: 0.5;
  transition: color 250ms ease, opacity 250ms ease;
}

.waitlist.is-success .waitlist__hint {
  color: var(--primary);
  opacity: 1;
}

@media (min-width: 640px) {
  .waitlist {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    padding-top: 0.5rem;
  }

  .waitlist__input {
    width: auto;
    min-width: 0;
    padding: 0.75rem 1.5rem;
  }

  .waitlist .btn {
    width: auto;
  }

  .waitlist__hint {
    flex-basis: 100%;
    text-align: center;
    margin-top: 0;
  }
}

/* ==========================================================================
   Benefits
   ========================================================================== */

.benefits {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem var(--container-margin) 5rem;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
}

@media (min-width: 768px) {
  .benefits {
    gap: 0;
    padding: 0;
  }
}

.benefit--split {
  display: grid;
  gap: var(--stack-md);
  align-items: center;
}

/* Mobile: visual first, copy second */
.benefit--split .benefit__visual {
  order: -1;
}

@media (min-width: 768px) {
  .benefit--split {
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 4vw, 4rem);
    width: 100%;
    max-width: var(--max-width);
    min-height: 100vh;
    min-height: 100dvh;
    margin-inline: auto;
    padding: 5rem var(--container-margin);
    box-sizing: border-box;
  }

  .benefit--split .benefit__visual {
    order: 0;
  }

  .benefit--reverse .benefit__visual {
    order: -1;
  }

  .benefit--split .panel {
    min-height: min(28rem, 52vh);
  }
}

.benefit__copy {
  display: flex;
  flex-direction: column;
  gap: var(--stack-md);
}

.panel {
  position: relative;
  min-height: min(20rem, 68vw);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  border-radius: var(--radius-card);
  border: var(--hairline);
  background: var(--surface-container-lowest);
  overflow: hidden;
}

@media (min-width: 768px) {
  .panel {
    min-height: 400px;
    padding: 2rem;
  }
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom right, color-mix(in srgb, var(--primary) 5%, transparent), transparent);
  pointer-events: none;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--stack-sm);
  padding-top: 0.5rem;
}

@media (min-width: 768px) {
  .feature-list {
    padding-top: 1rem;
  }
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: var(--gutter);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  color: var(--on-surface-variant);
}

.feature-list .material-symbols-outlined {
  color: var(--primary);
  flex-shrink: 0;
}

.feature-list__icon--tertiary {
  color: var(--tertiary) !important;
}

/* Score rings */
.score-ring {
  position: relative;
  width: min(14rem, 62vw);
  aspect-ratio: 1;
}

@media (min-width: 768px) {
  .score-ring {
    width: min(16rem, 70vw);
  }
}

.score-ring__svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.score-ring__track,
.score-ring__fill {
  fill: none;
  stroke-width: 6;
}

.score-ring__track {
  stroke: rgba(255, 255, 255, 0.05);
}

.score-ring__fill {
  stroke-linecap: round;
  stroke-dasharray: var(--circumference);
  stroke-dashoffset: var(--circumference);
  transition: stroke-dashoffset 1.4s var(--ease-out);
}

.score-ring__fill--outer {
  --circumference: 251.2;
  stroke: #4fd1c5;
}

.score-ring__fill--mid {
  --circumference: 188.4;
  stroke: #6c7bf7;
}

.score-ring__fill--inner {
  --circumference: 125.6;
  stroke: #a78bfa;
}

.score-ring.is-drawn .score-ring__fill--outer {
  stroke-dashoffset: 60;
}

.score-ring.is-drawn .score-ring__fill--mid {
  stroke-dashoffset: 40;
}

.score-ring.is-drawn .score-ring__fill--inner {
  stroke-dashoffset: 20;
}

.score-ring__center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.score-ring__value {
  font-size: clamp(1.75rem, 6vw, 2rem);
  font-weight: 200;
  line-height: 1;
  color: var(--on-surface);
}

.score-ring__label {
  color: var(--on-surface-variant);
  margin-top: 4px;
}

/* Map panel */
.panel--map {
  background-image: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.1) 1px, transparent 1px);
  background-size: 20px 20px;
}

.panel--map::after {
  content: "";
  position: absolute;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 6rem;
  height: 6rem;
  border-radius: 50%;
  background: color-mix(in srgb, var(--primary) 20%, transparent);
  filter: blur(40px);
  pointer-events: none;
}

@media (min-width: 768px) {
  .panel--map::after {
    right: 2rem;
    bottom: 2rem;
    width: 8rem;
    height: 8rem;
  }
}

.location-card {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  width: min(100%, 22rem);
  padding: 0.875rem 1rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--ambient-glow);
}

@media (min-width: 768px) {
  .location-card {
    width: auto;
    gap: 1rem;
    padding: 1rem;
  }
}

.location-card__icon {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--primary) 20%, transparent);
}

.location-card__icon .material-symbols-outlined {
  color: var(--primary);
  font-size: 24px;
}

.location-card__title {
  margin: 0;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  color: var(--on-surface);
}

.location-card__meta {
  margin: 2px 0 0;
  color: var(--on-surface-variant);
}

/* Health hub */
.benefit--hub {
  display: flex;
  justify-content: center;
}

@media (min-width: 768px) {
  .benefit--hub {
    align-items: center;
    width: 100%;
    max-width: var(--max-width);
    min-height: 100vh;
    min-height: 100dvh;
    margin-inline: auto;
    padding: 5rem var(--container-margin);
    box-sizing: border-box;
  }

  .benefit--hub .hub {
    max-width: 64rem;
    width: 100%;
    padding: 3.5rem;
  }
}

.hub {
  width: 100%;
  max-width: 56rem;
  min-height: 0;
  flex-direction: column;
  gap: var(--stack-md);
  padding: 1.5rem;
  text-align: center;
}

@media (min-width: 768px) {
  .hub {
    gap: var(--stack-lg);
    padding: 2rem;
  }
}

@media (min-width: 1024px) {
  .hub {
    padding: 3rem;
  }
}

.hub__accent {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  height: 2px;
  background: var(--gradient-premium);
  opacity: 0.5;
}

.hub__intro {
  max-width: 42rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--stack-sm);
}

.hub__grid {
  display: grid;
  gap: var(--stack-sm);
  width: 100%;
  padding-top: 0.5rem;
}

@media (min-width: 640px) {
  .hub__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--stack-md);
    padding-top: 1rem;
  }
}

.hub__item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 0.875rem;
  padding: 1rem 1.125rem;
  border-radius: var(--radius-xl);
  border: var(--hairline);
  background: var(--surface);
  transition: background 200ms ease;
  text-align: left;
}

@media (min-width: 640px) {
  .hub__item {
    flex-direction: column;
    justify-content: center;
    gap: var(--stack-sm);
    padding: 1.5rem;
    text-align: center;
  }
}

.hub__item:hover {
  background: var(--surface-container);
}

.hub__icon {
  font-size: 28px !important;
}

@media (min-width: 640px) {
  .hub__icon {
    font-size: 32px !important;
  }
}

.hub__icon--primary {
  color: var(--primary);
}

.hub__icon--secondary {
  color: var(--secondary);
}

.hub__icon--tertiary {
  color: var(--tertiary);
}

/* ==========================================================================
   Feature details (added deep-dive sections)
   ========================================================================== */

.feature-details {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem var(--container-margin) 5rem;
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

@media (min-width: 768px) {
  .feature-details {
    gap: 0;
    padding: 0;
  }
}

.detail {
  display: flex;
  flex-direction: column;
  gap: var(--stack-lg);
}

.detail__intro {
  max-width: 40rem;
  display: flex;
  flex-direction: column;
  gap: var(--stack-sm);
}

.detail__intro--gps {
  max-width: 36rem;
}

.detail__label {
  color: var(--primary);
}

.detail__intro--wide {
  max-width: 48rem;
}

.detail-split {
  display: grid;
  gap: var(--stack-lg);
  align-items: center;
}

@media (min-width: 768px) {
  .detail-split {
    grid-template-columns: minmax(16rem, 0.9fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }

  .detail-split--reverse {
    grid-template-columns: minmax(0, 1.2fr) minmax(16rem, 0.9fr);
  }

  .detail-split--reverse .detail__intro {
    order: 2;
  }

  .detail--activity .detail__intro {
    max-width: none;
  }

  .detail--gps .map-wide {
    min-height: min(40rem, 72vh);
  }
}

.activity-note {
  margin: 0.5rem 0 0;
  color: var(--on-surface-variant);
  opacity: 0.7;
}

@media (min-width: 768px) {
  .detail {
    width: 100%;
    max-width: var(--max-width);
    min-height: 100vh;
    min-height: 100dvh;
    margin-inline: auto;
    justify-content: center;
    gap: clamp(1.5rem, 3vh, 2.5rem);
    padding: 5rem var(--container-margin);
    box-sizing: border-box;
  }

  .detail__intro {
    max-width: 44rem;
  }

  .metric-layout,
  .wellness-layout,
  .stat-grid,
  .detail-split {
    flex: 1;
  }

  .panel--compact {
    min-height: min(22rem, 42vh);
    padding: 2rem;
  }

  .trend-chart {
    height: clamp(10rem, 22vh, 14rem);
  }

  .trend-chart--labeled {
    height: clamp(11rem, 24vh, 15rem);
  }

  .stat-grid {
    gap: 1.25rem;
    align-content: center;
  }

  .stat-grid--paired {
    grid-template-columns: 1fr 1fr;
    min-height: min(22rem, 45vh);
  }

  .stat-card {
    min-height: min(14rem, 28vh);
    justify-content: center;
    padding: 2rem 1.5rem;
  }

  .stat-card__value {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
  }

  .map-wide {
    min-height: min(36rem, 58vh);
    flex: 1;
  }
}

.panel--compact {
  min-height: 0;
  align-items: stretch;
  justify-content: flex-start;
  flex-direction: column;
  gap: var(--stack-md);
  padding: 1.25rem;
}

@media (min-width: 768px) {
  .panel--compact {
    padding: 1.5rem;
  }
}

.metric-layout,
.wellness-layout {
  display: grid;
  gap: var(--stack-md);
}

@media (min-width: 768px) {
  .metric-layout,
  .wellness-layout {
    grid-template-columns: 1fr 1.15fr;
    gap: var(--stack-lg);
    align-items: stretch;
  }
}

.metric-card__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--stack-md);
}

.metric-card__value {
  margin: 0.35rem 0 0;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--on-surface);
}

.metric-card__value--sm {
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.metric-card__unit {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--on-surface-variant);
}

.metric-stats {
  padding-top: var(--stack-md);
  border-top: var(--hairline);
}

.metric-stats__title {
  margin-bottom: var(--stack-sm);
  color: var(--on-surface-variant);
}

.metric-stats__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--stack-sm);
  margin: 0;
}

.metric-stats__grid dt {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

.metric-stats__grid dd {
  margin: 0.25rem 0 0;
  font-size: 1.25rem;
  font-weight: 300;
  color: var(--on-surface);
}

.metric-stats__unit {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--on-surface-variant);
}

.metric-stats--inline {
  margin-top: var(--stack-md);
  padding-top: var(--stack-md);
  border-top: var(--hairline);
}

.chart-card {
  justify-content: space-between;
}

.chart-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--stack-md);
}

.chart-card__avg {
  color: var(--primary);
}

.labeled-chart {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 0.75rem;
  align-items: stretch;
  margin-top: 0.5rem;
}

.labeled-chart__y {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0.15rem 0 1.6rem;
  font-size: 11px;
  font-weight: 500;
  color: var(--on-surface-variant);
  opacity: 0.75;
  text-align: right;
}

.labeled-chart__plot {
  min-width: 0;
}

.trend-chart {
  width: 100%;
  height: 8.5rem;
  margin-top: 0.5rem;
}

.trend-chart--labeled {
  height: 10.5rem;
  margin-top: 0;
  overflow: visible;
}

.trend-chart__grid {
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 1;
}

.trend-chart__line {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.trend-chart__line--primary {
  stroke: #4fd1c5;
}

.trend-chart__line--secondary {
  stroke: #6c7bf7;
}

.trend-chart__points circle {
  fill: #0e1514;
  stroke: #4fd1c5;
  stroke-width: 2;
}

.trend-chart__points text {
  fill: var(--on-surface);
  font-size: 11px;
  font-weight: 500;
  text-anchor: middle;
}

.trend-chart__axis {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  opacity: 0.7;
  margin-top: 0.35rem;
}

/* Breath bar chart */
.breath-panel {
  gap: var(--stack-md);
}

.breath-panel__hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--stack-md);
  padding-bottom: var(--stack-md);
  border-bottom: var(--hairline);
}

.bar-chart {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  align-items: end;
  min-height: 11rem;
  padding-top: 0.5rem;
}

.bar-chart__col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  height: 100%;
  justify-content: flex-end;
}

.bar-chart__val {
  font-size: 12px;
  font-weight: 500;
  color: var(--on-surface);
}

.bar-chart__bar {
  width: 100%;
  max-width: 2rem;
  height: var(--h, 50%);
  border-radius: 999px 999px 4px 4px;
  background: linear-gradient(180deg, #8b9aff 0%, #6c7bf7 100%);
  opacity: 0.9;
}

.bar-chart__bar--peak {
  background: var(--gradient-premium);
}

.bar-chart__day {
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
  opacity: 0.7;
}

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

@media (min-width: 768px) {
  .stat-grid:not(.stat-grid--paired) {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--stack-md);
  }
}

.stat-card {
  gap: var(--stack-sm);
}

.stat-card__icon {
  color: var(--primary);
  font-size: 28px !important;
}

.stat-card__icon--secondary {
  color: var(--secondary);
}

.stat-card__icon--tertiary {
  color: var(--tertiary);
}

.stat-card__value {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 200;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.stat-card__unit {
  margin-left: 0.25rem;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--on-surface-variant);
}

.stat-card__sub {
  margin: 0;
  font-size: 12px;
  color: var(--on-surface-variant);
  opacity: 0.8;
}

.sleep-timeline {
  width: 100%;
}

.sleep-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--stack-md);
  flex-wrap: wrap;
}

.sleep-bar {
  display: flex;
  height: 14px;
  border-radius: var(--radius-full);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
}

.sleep-bar--tall {
  height: 22px;
}

.sleep-bar__seg {
  display: block;
  min-width: 4px;
}

.sleep-bar__seg--deep { background: #4fd1c5; }
.sleep-bar__seg--light { background: #6c7bf7; }
.sleep-bar__seg--rem { background: #a78bfa; }
.sleep-bar__seg--awake { background: rgba(255, 255, 255, 0.2); }

.sleep-legend {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 1rem;
}

@media (min-width: 768px) {
  .sleep-legend--valued {
    grid-template-columns: repeat(4, 1fr);
  }
}

.sleep-legend li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 13px;
  color: var(--on-surface-variant);
}

.sleep-legend li strong {
  margin-left: auto;
  font-weight: 500;
  color: var(--on-surface);
}

.sleep-legend__swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sleep-legend__swatch--deep { background: #4fd1c5; }
.sleep-legend__swatch--light { background: #6c7bf7; }
.sleep-legend__swatch--rem { background: #a78bfa; }
.sleep-legend__swatch--awake { background: rgba(255, 255, 255, 0.2); }

.stress-row {
  display: grid;
  gap: var(--stack-md);
}

@media (min-width: 768px) {
  .stress-row {
    grid-template-columns: 0.85fr 1.15fr;
    gap: var(--stack-lg);
  }
}

.stress-card {
  align-items: center;
  text-align: center;
}

.stress-meter {
  position: relative;
  width: min(100%, 14rem);
  margin: 0.5rem auto 0;
}

.stress-meter__svg {
  width: 100%;
  height: auto;
  display: block;
}

.stress-meter__track {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 12;
  stroke-linecap: round;
}

.stress-meter__fill {
  fill: none;
  stroke: #4fd1c5;
  stroke-width: 12;
  stroke-linecap: round;
}

.stress-meter__center {
  position: absolute;
  left: 50%;
  bottom: 0.25rem;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
}

.stress-meter__value {
  font-size: 2rem;
  font-weight: 200;
  line-height: 1;
  letter-spacing: -0.02em;
}

.stress-facts__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0.25rem 0;
}

.stress-facts__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: var(--hairline);
  font-size: 14px;
  color: var(--on-surface-variant);
}

.stress-facts__list li:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.stress-facts__list strong {
  font-size: 1rem;
  font-weight: 400;
  color: var(--on-surface);
}

.stress-card__hint {
  margin: 0.5rem 0 0;
  max-width: none;
}

.map-wide {
  position: relative;
  min-height: min(22rem, 70vw);
  padding: 0;
  overflow: hidden;
}

@media (min-width: 768px) {
  .map-wide {
    min-height: 28rem;
  }
}

.map-wide__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px, 48px 48px, 20px 20px;
  opacity: 0.9;
}

.map-wide__path {
  position: absolute;
  inset: 22% 18% 28% 22%;
  border: 2px dashed color-mix(in srgb, var(--primary) 35%, transparent);
  border-radius: 40% 60% 45% 55%;
  opacity: 0.7;
}

.map-wide__pulse {
  position: absolute;
  top: 48%;
  left: 58%;
  width: 8rem;
  height: 8rem;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: color-mix(in srgb, var(--primary) 18%, transparent);
  filter: blur(28px);
  animation: map-pulse 3.5s var(--ease-out) infinite;
}

.map-wide__pin {
  position: absolute;
  top: 48%;
  left: 58%;
  z-index: 2;
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  background: var(--gradient-premium);
  color: var(--background);
  box-shadow: var(--ambient-glow);
}

.map-wide__pin .material-symbols-outlined {
  font-size: 22px;
  color: var(--background);
}

.map-wide__copy {
  position: absolute;
  z-index: 2;
  top: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  max-width: 28rem;
  display: flex;
  flex-direction: column;
  gap: var(--stack-sm);
  padding: 1.25rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

@media (min-width: 768px) {
  .map-wide__copy {
    top: 1.5rem;
    left: 1.5rem;
    right: auto;
    padding: 1.5rem;
  }
}

.map-wide__badge {
  position: absolute;
  z-index: 2;
  left: 1rem;
  bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: calc(100% - 2rem);
  padding: 0.875rem 1rem;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.map-wide__badge .material-symbols-outlined {
  color: var(--primary);
  font-size: 24px;
}

.map-wide__stats {
  display: none;
}

@media (min-width: 768px) {
  .map-wide__badge {
    left: 1.5rem;
    bottom: 1.5rem;
  }

  .map-wide__stats {
    position: absolute;
    z-index: 2;
    right: 1.5rem;
    bottom: 1.5rem;
    display: flex;
    gap: 0.75rem;
  }

  .map-wide__stats li {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 5.5rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: color-mix(in srgb, var(--surface) 82%, transparent);
    backdrop-filter: blur(16px);
  }

  .map-wide__stats strong {
    font-size: 1rem;
    font-weight: 400;
    color: var(--on-surface);
  }
}

@keyframes map-pulse {
  0%,
  100% {
    opacity: 0.55;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.9;
    transform: translate(-50%, -50%) scale(1.12);
  }
}

@media (prefers-reduced-motion: reduce) {
  .map-wide__pulse {
    animation: none;
  }
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  margin-top: auto;
  padding: var(--stack-lg) 0 calc(var(--stack-lg) + var(--safe-bottom));
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  background: var(--surface-container-lowest);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-margin);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--stack-md);
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.25rem;
}

.footer-links a {
  color: var(--on-surface-variant);
  font-size: 15px;
  transition: color 200ms ease;
}

@media (min-width: 768px) {
  .footer-links {
    gap: 1.5rem;
  }

  .footer-links a {
    font-size: 16px;
  }
}

.footer-links a:hover {
  color: var(--primary);
}

.footer-copy {
  margin: 0;
  color: var(--on-surface-variant);
  font-size: 14px;
  line-height: 1.4;
}

@media (min-width: 768px) {
  .footer-copy {
    font-size: 16px;
  }

  .site-footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ==========================================================================
   Reveal motion
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--duration) var(--ease-out),
    transform var(--duration) var(--ease-out);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal[data-reveal]:nth-child(2) {
  transition-delay: 80ms;
}

.reveal[data-reveal]:nth-child(3) {
  transition-delay: 160ms;
}

.reveal[data-reveal]:nth-child(4) {
  transition-delay: 240ms;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .score-ring__fill {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  .score-ring__fill {
    stroke-dashoffset: 60;
  }

  .score-ring__fill--mid {
    stroke-dashoffset: 40;
  }

  .score-ring__fill--inner {
    stroke-dashoffset: 20;
  }
}