/* Pontohi landing — healthcare-tech, mobile-first */

:root {
  --color-bg: #f4f7f7;
  --color-surface: #ffffff;
  --color-ink: #1a2b2c;
  --color-ink-muted: #4a5f61;
  --color-teal-deep: #0f3d3e;
  --color-teal: #1a6b6c;
  --color-teal-mid: #2a8a8c;
  --color-teal-soft: #e4f0f0;
  --color-slate: #2c3e42;
  --color-border: #d0dddd;
  --color-focus: #1a6b6c;
  --font-sans: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 61, 62, 0.06);
  --shadow-md: 0 8px 24px rgba(15, 61, 62, 0.08);
  --header-h: 4rem;
  --space: 1.25rem;
  --max: 68rem;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 0.5rem);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--color-teal-deep);
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100%;
  z-index: 1000;
  padding: 0.65rem 1rem;
  background: var(--color-teal-deep);
  color: #fff;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 247, 247, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-teal-deep);
  text-decoration: none;
}

.logo:hover {
  color: var(--color-teal);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  padding: 0.4rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-teal-deep);
  border-radius: 1px;
}

.site-nav {
  display: none;
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  flex-direction: column;
  gap: 1rem;
  padding: 1.25rem 1rem 1.5rem;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

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

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-list a {
  display: block;
  padding: 0.65rem 0.5rem;
  color: var(--color-slate);
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--radius-sm);
}

.nav-list a:hover {
  color: var(--color-teal-deep);
  background: var(--color-teal-soft);
}

@media (min-width: 768px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 1.75rem;
    padding: 0;
    background: transparent;
    border: none;
    box-shadow: none;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: 0.15rem;
  }

  .nav-list a {
    padding: 0.4rem 0.65rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.35rem;
  font: inherit;
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.2;
  text-decoration: none;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
}

.btn-lg {
  padding: 0.9rem 1.6rem;
  font-size: 1.0625rem;
}

.btn-primary {
  background: var(--color-teal-deep);
  color: #fff;
  border-color: var(--color-teal-deep);
}

.btn-primary:hover {
  background: var(--color-teal);
  border-color: var(--color-teal);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--color-teal-deep);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-teal-soft);
  border-color: var(--color-teal-mid);
  color: var(--color-teal-deep);
}

/* Hero */
.hero {
  padding: 3.5rem 0 4rem;
  background:
    radial-gradient(ellipse 80% 60% at 90% 10%, rgba(42, 138, 140, 0.12), transparent 55%),
    radial-gradient(ellipse 70% 50% at 0% 80%, rgba(15, 61, 62, 0.08), transparent 50%),
    var(--color-bg);
}

.hero-inner {
  max-width: 40rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.15rem, 5.5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-teal-deep);
}

.hero-subhead {
  margin: 0 0 1.75rem;
  font-size: clamp(1.05rem, 2.2vw, 1.2rem);
  color: var(--color-ink-muted);
  max-width: 36rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Sections */
.section {
  padding: 3.5rem 0;
}

.section-header {
  margin-bottom: 2rem;
}

.section-header h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-teal-deep);
}

.section-lede {
  margin: 0;
  color: var(--color-ink-muted);
  max-width: 36rem;
}

/* Focus cards */
.focus {
  background: var(--color-surface);
  border-block: 1px solid var(--color-border);
}

.card-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  padding: 1.5rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: #b8cece;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  margin-bottom: 1rem;
  border-radius: 10px;
  background: var(--color-teal-soft);
  color: var(--color-teal);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--color-slate);
}

.card p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 0.9875rem;
}

/* Approach */
.approach {
  background:
    linear-gradient(165deg, var(--color-teal-deep) 0%, #163f42 45%, var(--color-slate) 100%);
  color: #e8f2f2;
}

.approach .section-header h2 {
  color: #fff;
}

.approach-inner {
  max-width: 40rem;
}

.approach-copy {
  margin: 0;
  font-size: 1.125rem;
  line-height: 1.7;
  color: rgba(232, 242, 242, 0.92);
}

/* About */
.about-inner {
  max-width: 40rem;
}

.about p {
  margin: 0;
  color: var(--color-ink-muted);
  font-size: 1.0625rem;
}

/* Contact */
.contact {
  background: var(--color-teal-soft);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.contact .section-header {
  margin-bottom: 1.5rem;
}

.contact .section-lede {
  margin-inline: auto;
}

.contact-email {
  margin: 1rem 0 0;
  font-size: 0.9375rem;
  color: var(--color-ink-muted);
}

.contact-email a {
  font-weight: 500;
}

/* Footer */
.site-footer {
  padding: 1.75rem 0;
  background: var(--color-teal-deep);
  color: rgba(232, 242, 242, 0.85);
  font-size: 0.875rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
}

.footer-brand {
  margin: 0;
  font-weight: 500;
}

.footer-nav a {
  color: rgba(232, 242, 242, 0.9);
  text-decoration: none;
  font-weight: 500;
}

.footer-nav a:hover {
  color: #fff;
  text-decoration: underline;
}

.privacy-note {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.privacy-note p {
  margin: 0;
  max-width: 36rem;
}

.privacy-note a {
  color: #fff;
}

.privacy-note[hidden] {
  display: none;
}