/* Public marketing homepage — the page a logged-out visitor (and Google's OAuth verification
   reviewer) lands on at `/`. Shares the design tokens from style.css; everything here is layout
   specific to the landing page and isn't used anywhere in the app itself. Kept in its own file
   because the app's CSP has no 'unsafe-inline', so a <style> block on landing.html wouldn't load. */

.landing {
  /* A soft radial wash behind the near-black page, so the hero doesn't sit on a flat void. */
  background:
    radial-gradient(1100px 600px at 50% -10%, rgba(91, 154, 139, 0.14), transparent 70%),
    var(--page);
  min-height: 100vh;
}
.landing-header,
.landing-main,
.login-main { position: relative; z-index: 1; }

/* Ambient colour drifting behind everything — the palette from the app's own metrics (HRV blue,
   sleep purple, activity orange). Big blur + low opacity + a slow loop, so it reads as atmosphere
   rather than motion you have to watch. */
.aurora {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.aurora span {
  position: absolute;
  display: block;
  width: 46vw;
  height: 46vw;
  min-width: 340px;
  min-height: 340px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.2;
  will-change: transform;
}
.aurora span:nth-child(1) {
  top: -14vw; left: -8vw;
  background: radial-gradient(circle, var(--accent-hrv), transparent 62%);
  animation: auroraDrift1 24s ease-in-out infinite alternate;
}
.aurora span:nth-child(2) {
  top: -6vw; right: -12vw;
  background: radial-gradient(circle, var(--accent-sleep), transparent 62%);
  animation: auroraDrift2 30s ease-in-out infinite alternate;
}
.aurora span:nth-child(3) {
  top: 42vh; left: 30vw;
  background: radial-gradient(circle, var(--accent-activity), transparent 65%);
  opacity: 0.13;
  animation: auroraDrift3 34s ease-in-out infinite alternate;
}
@keyframes auroraDrift1 { to { transform: translate(10vw, 7vw) scale(1.15); } }
@keyframes auroraDrift2 { to { transform: translate(-8vw, 9vw) scale(1.1); } }
@keyframes auroraDrift3 { to { transform: translate(-12vw, -6vw) scale(1.2); } }

.landing .brand-mark { animation: brandPulse 3.2s ease-in-out infinite; }
@keyframes brandPulse {
  0%, 100% { box-shadow: 0 0 8px 1px rgba(91, 154, 139, 0.28), 0 0 0 3px rgba(91, 154, 139, 0.08); }
  50%      { box-shadow: 0 0 15px 2px rgba(91, 154, 139, 0.5), 0 0 0 6px rgba(91, 154, 139, 0.12); }
}

@media (prefers-reduced-motion: reduce) {
  .aurora span,
  .landing .brand-mark { animation: none; }
}

.landing-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}

.landing-nav-cta {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  padding: 0.5rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.landing-nav-cta:hover { color: var(--ink); border-color: var(--accent-primary); }

.landing-main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Hero --- */
.hero {
  text-align: center;
  padding: 4rem 0 5rem;
  max-width: 760px;
  margin: 0 auto;
}
.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin: 0 0 1.25rem;
}
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 6vw, 3.6rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
}
.hero-sub {
  color: var(--ink-2);
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 0 auto 2.25rem;
  max-width: 620px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
}
.hero-note {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 1.5rem 0 0;
}

.landing-btn {
  display: inline-block;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: 9px;
  border: 1px solid var(--border);
  color: var(--ink-2);
  background: var(--surface-2);
}
.landing-btn {
  transition: transform 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease, color 0.16s ease;
}
.landing-btn:hover { color: var(--ink); border-color: var(--accent-primary); transform: translateY(-2px); }
.landing-btn-primary {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
  color: var(--page);
  box-shadow: 0 1px 2px rgba(91, 154, 139, 0.25);
}
.landing-btn-primary:hover {
  color: var(--page);
  box-shadow: 0 8px 20px rgba(91, 154, 139, 0.38);
}
/* Apple's sign-in button guidelines call for solid black (or white) with the Apple mark —
   distinct from this site's teal accent so it doesn't get mistaken for the primary action. */
.landing-btn-apple {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: #000;
  border-color: #000;
  color: #fff;
}
.landing-btn-apple:hover {
  color: #fff;
  border-color: #000;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.35);
}

/* --- Feature sections --- */
.feature-section {
  padding: 3rem 0;
  border-top: 1px solid var(--border-soft);
}
.feature-section h2,
.closing h2 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 0 0 1.75rem;
  text-align: center;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}
.feature-card {
  position: relative;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 1.6rem 1.5rem;
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.feature-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--card-accent, var(--accent-primary));
  opacity: 0.85;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--card-accent, var(--accent-primary)) 45%, transparent);
  box-shadow: 0 16px 34px -20px rgba(0, 0, 0, 0.75);
}
.feature-icon {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  margin-bottom: 0.9rem;
  color: var(--card-accent, var(--accent-primary));
  background: color-mix(in srgb, var(--card-accent, var(--accent-primary)) 15%, transparent);
}
.feature-icon svg { width: 18px; height: 18px; }
.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.6rem;
}
.feature-card p {
  color: var(--ink-2);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
}
.feature-card.accent-sleep { --card-accent: var(--accent-sleep); }
.feature-card.accent-activity { --card-accent: var(--accent-activity); }
.feature-card.accent-body { --card-accent: var(--accent-primary); }
.feature-card.accent-ai { --card-accent: var(--accent-hrv); }

.source-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}
.source-card {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  background: var(--surface-2);
  border: 1px solid var(--border-soft);
  border-left: 2px solid var(--card-accent, var(--border));
  border-radius: 12px;
  padding: 1.15rem 1.25rem;
  transition: transform 0.18s ease, border-color 0.18s ease;
}
.source-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--card-accent, var(--accent-primary)) 45%, transparent);
}
.source-card.accent-google { --card-accent: var(--accent-primary); }
.source-card.accent-oura { --card-accent: var(--accent-hrv); }
.source-card.accent-whoop { --card-accent: var(--accent-sleep); }
.source-card.accent-withings { --card-accent: var(--accent-activity); }
.source-card.accent-apple { --card-accent: #b4c0bc; }
.source-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}
.source-name::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  background: var(--card-accent, var(--accent-primary));
  box-shadow: 0 0 8px var(--card-accent, var(--accent-primary));
}
.source-detail {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.5;
}
.source-note {
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
  margin: 1.5rem 0 0;
}

.disclosure {
  max-width: 720px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 1.75rem 2rem;
}
.disclosure p {
  color: var(--ink-2);
  font-size: 0.95rem;
  line-height: 1.65;
  margin: 0 0 1rem;
}
.disclosure p:last-child { margin-bottom: 0; }
.disclosure a { color: var(--accent-primary); }

/* --- Closing --- */
.closing {
  text-align: center;
  padding: 4rem 0 5rem;
  border-top: 1px solid var(--border-soft);
}
.closing p {
  color: var(--ink-2);
  font-size: 1.05rem;
  margin: 0 0 2rem;
}

@media (max-width: 600px) {
  .hero { padding: 2.5rem 0 3.5rem; }
  .feature-section, .closing { padding: 2.5rem 0; }
}

/* Sections ease up into view as you scroll. landing.js only adds .reveal-armed when motion is
   allowed, so with JS off or reduced-motion on, everything is simply visible from the start. */
.reveal-armed {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-armed.is-visible {
  opacity: 1;
  transform: none;
}

/* --- Dedicated /login page --- */
.login-main {
  max-width: 440px;
  margin: 0 auto;
  padding: 9vh 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}
.login-card {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 2.5rem 2rem;
  text-align: center;
}
.login-card .brand { justify-content: center; margin-bottom: 1.5rem; }
.login-card h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.6rem;
  letter-spacing: -0.01em;
  margin: 0 0 0.5rem;
}
.login-sub {
  color: var(--ink-2);
  font-size: 0.95rem;
  line-height: 1.55;
  margin: 0 0 1.75rem;
}
.login-options { display: flex; flex-direction: column; gap: 0.7rem; }
.login-options .landing-btn { width: 100%; }
.landing-btn-icon { display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem; }
.landing-btn-icon svg { flex: none; }

.login-compat { margin: 1.5rem 0 0; text-align: center; }
.login-compat-label {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.login-compat-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1rem;
}
.login-compat-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--ink-2);
}
.login-compat-item svg { flex: none; color: var(--muted); }
.login-disclosure {
  margin: 1.75rem 0 0;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--muted);
}
.login-disclosure a { color: var(--accent-primary); }
.login-back { color: var(--muted); font-size: 0.85rem; text-decoration: none; }
.login-back:hover { color: var(--ink-2); }