/* Dawn — shared site styles. Nightfall (dark) is the primary theme; Daybreak
   (light) is a full first-class fallback. Self-contained: no external fonts or
   requests. Colors carry the app's WCAG-checked palette. */

:root {
  /* Nightfall (dark) is the default look */
  --bg-top: #12121d;
  --bg-bottom: #08080f;
  --surface: #16161f;
  --surface-2: #1c1c28;
  --ink: #f0eff8;
  --muted: #a9a8c2;
  --faint: #6f6e88;
  --line: #2a2940;
  --accent: #8f8df8;
  --accent-ink: #ffffff;
  --gold: #dcb86c;

  /* sunrise — shared across themes, luminous on both */
  --sky-indigo: #5e5ce6;
  --sky-violet: #9a6ed0;
  --sky-coral: #ec8b5e;
  --sky-gold: #f4b556;

  /* category tints (site-decorative; darker amber/green per AA work) */
  --feed: #46a7b5;
  --sleep: #6e6cf0;
  --diaper: #b98a3d;
  --growth: #4f9d63;

  --card-stroke: rgba(255, 255, 255, 0.07);
  --card-glow: rgba(143, 141, 248, 0.16);
  --shadow: 0 2px 6px rgba(0, 0, 0, 0.35), 0 18px 44px rgba(0, 0, 0, 0.4);
  --radius: 22px;
  --maxw: 1080px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg-top: #f6f5fc;
    --bg-bottom: #ecebf4;
    --surface: #ffffff;
    --surface-2: #f7f6fc;
    --ink: #1a1a27;
    --muted: #55556c;
    --faint: #8a8aa0;
    --line: #e7e5f1;
    --accent: #5b59d6;
    --accent-ink: #ffffff;
    --gold: #8c6614; /* darkened for AA on light */
    --card-stroke: rgba(0, 0, 0, 0.05);
    --card-glow: rgba(60, 52, 120, 0.1);
    --shadow: 0 1px 2px rgba(25, 25, 39, 0.05), 0 12px 30px rgba(60, 52, 120, 0.1);
    color-scheme: light;
  }
}

/* explicit toggle wins over the OS preference, both directions */
:root[data-theme="dark"] {
  --bg-top: #12121d; --bg-bottom: #08080f; --surface: #16161f; --surface-2: #1c1c28;
  --ink: #f0eff8; --muted: #a9a8c2; --faint: #6f6e88; --line: #2a2940;
  --accent: #8f8df8; --gold: #dcb86c;
  --card-stroke: rgba(255,255,255,0.07); --card-glow: rgba(143,141,248,0.16);
  --shadow: 0 2px 6px rgba(0,0,0,0.35), 0 18px 44px rgba(0,0,0,0.4);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg-top: #f6f5fc; --bg-bottom: #ecebf4; --surface: #ffffff; --surface-2: #f7f6fc;
  --ink: #1a1a27; --muted: #55556c; --faint: #8a8aa0; --line: #e7e5f1;
  --accent: #5b59d6; --gold: #8c6614;
  --card-stroke: rgba(0,0,0,0.05); --card-glow: rgba(60,52,120,0.1);
  --shadow: 0 1px 2px rgba(25,25,39,0.05), 0 12px 30px rgba(60,52,120,0.1);
  color-scheme: light;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom)) fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.serif { font-family: ui-serif, "New York", Georgia, "Times New Roman", serif; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.narrow { max-width: 44rem; margin: 0 auto; padding: 0 22px; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* ---------- top nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px;
  backdrop-filter: saturate(140%) blur(14px);
  background: color-mix(in srgb, var(--bg-top) 72%, transparent);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand .mark {
  width: 28px; height: 28px; border-radius: 7px;
  background: url("assets/icon.png") center/cover no-repeat;
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav-actions a { color: var(--muted); font-size: 14px; font-weight: 600; padding: 8px 10px; }
.nav-actions a:hover { color: var(--ink); text-decoration: none; }
.theme-toggle {
  background: var(--surface-2); border: 1px solid var(--line); color: var(--ink);
  width: 38px; height: 38px; border-radius: 999px; cursor: pointer; font-size: 16px;
  display: inline-flex; align-items: center; justify-content: center;
}
.theme-toggle:hover { border-color: var(--accent); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: inherit; font-weight: 700; font-size: 16px; cursor: pointer;
  padding: 13px 22px; border-radius: 999px; border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(96deg, var(--sky-indigo), var(--sky-coral) 78%, var(--sky-gold));
  box-shadow: 0 8px 26px rgba(236, 139, 94, 0.3);
}
.btn-primary:hover { transform: translateY(-2px); text-decoration: none; box-shadow: 0 12px 32px rgba(236,139,94,.4); }
.btn-ghost { color: var(--ink); background: var(--surface-2); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent); text-decoration: none; }
@media (prefers-reduced-motion: reduce) { .btn:hover { transform: none; } }

.badge-soon {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 14px; border: 1px solid var(--line);
  background: var(--surface); color: var(--muted); font-size: 14px; font-weight: 600;
}
.badge-soon .apple { font-size: 18px; }

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 92px 0 64px; }
.hero-sky {
  position: absolute; inset: -20% -20% auto -20%; height: 90%; z-index: -1;
  background:
    radial-gradient(60% 55% at 50% 8%, rgba(244,181,86,0.30), transparent 60%),
    radial-gradient(80% 60% at 50% 0%, rgba(236,139,94,0.22), transparent 62%),
    radial-gradient(120% 90% at 50% -20%, rgba(94,92,230,0.30), transparent 70%);
  filter: blur(6px);
  animation: dawnrise 14s ease-in-out infinite alternate;
}
@keyframes dawnrise { from { transform: translateY(6px); opacity: .85; } to { transform: translateY(-8px); opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .hero-sky { animation: none; } }

.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
.eyebrow {
  font-size: 13px; letter-spacing: .16em; text-transform: uppercase; font-weight: 700;
  color: var(--gold); display: inline-flex; align-items: center; gap: 8px; margin-bottom: 18px;
}
.hero h1 {
  font-size: clamp(38px, 6vw, 62px); line-height: 1.03; letter-spacing: -0.02em;
  font-weight: 700; text-wrap: balance; margin-bottom: 18px;
}
.hero h1 .warm {
  background: linear-gradient(96deg, var(--sky-indigo), var(--sky-violet) 40%, var(--sky-coral) 78%, var(--sky-gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.lead { font-size: 19px; color: var(--muted); max-width: 34ch; margin-bottom: 26px; }
.hero .cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero .reassure { margin-top: 16px; font-size: 13.5px; color: var(--faint); }

/* phone mock */
.phone {
  justify-self: center;
  width: 300px; border-radius: 46px; padding: 10px;
  background: linear-gradient(160deg, #2a2a3a, #0c0c14);
  box-shadow: 0 30px 70px rgba(0,0,0,.5), 0 0 0 1px rgba(255,255,255,.06);
}
.phone img { width: 100%; height: auto; border-radius: 38px; display: block; }
.phone.tilt { transform: rotate(2deg); }

/* ---------- sections ---------- */
section { padding: 72px 0; }
.section-eyebrow { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); font-weight: 700; margin-bottom: 12px; }
h2.section-title { font-size: clamp(28px, 4.5vw, 42px); letter-spacing: -0.02em; line-height: 1.08; text-wrap: balance; margin-bottom: 14px; }
.section-sub { font-size: 18px; color: var(--muted); max-width: 60ch; }

/* empathy band */
.empathy { text-align: center; }
.empathy p { font-size: clamp(22px, 3.4vw, 30px); line-height: 1.4; max-width: 24ch; margin: 0 auto; letter-spacing: -0.01em; text-wrap: balance; }
.empathy .soft { color: var(--muted); }

/* feature moments */
.moment { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin: 64px 0; }
.moment:nth-child(even) .moment-visual { order: -1; }
.moment .kicker { font-size: 13px; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; margin-bottom: 10px; }
.moment h3 { font-size: clamp(24px, 3.4vw, 32px); letter-spacing: -0.01em; margin-bottom: 12px; text-wrap: balance; }
.moment p { color: var(--muted); font-size: 17px; max-width: 46ch; }
.moment .tag { display: inline-block; margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--gold); border: 1px solid color-mix(in srgb, var(--gold) 40%, transparent); padding: 5px 12px; border-radius: 999px; }
.moment-visual .phone { width: 270px; }

/* generic card */
.card { background: var(--surface); border: 1px solid var(--card-stroke); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; }

/* privacy pillar */
.pillar { text-align: center; border-radius: 32px; padding: 64px 28px;
  background:
    radial-gradient(90% 120% at 50% 0%, rgba(94,92,230,0.16), transparent 60%),
    var(--surface);
  border: 1px solid var(--card-stroke); box-shadow: var(--shadow);
}
.pillar .lock { font-size: 30px; }
.pillar h2 { font-size: clamp(26px, 4vw, 38px); letter-spacing: -0.02em; max-width: 20ch; margin: 12px auto 14px; text-wrap: balance; }
.pillar p { color: var(--muted); max-width: 52ch; margin: 0 auto; font-size: 17px; }
.pillar .points { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 22px; }
.pillar .points span { font-size: 14px; font-weight: 600; padding: 8px 14px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--line); }

/* why-dawn strip */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.why-grid .card h4 { font-size: 17px; margin-bottom: 6px; }
.why-grid .card p { color: var(--muted); font-size: 14.5px; }
.why-grid .card .big { font-size: 15px; font-weight: 800; color: var(--gold); display: block; margin-bottom: 8px; }

/* faq */
.faq details { border: 1px solid var(--line); border-radius: 16px; padding: 4px 18px; margin-bottom: 12px; background: var(--surface); }
.faq summary { font-weight: 700; font-size: 17px; padding: 14px 0; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { color: var(--muted); padding: 0 0 16px; font-size: 15.5px; }

/* waitlist form */
.waitlist { display: flex; gap: 10px; flex-wrap: wrap; max-width: 460px; }
.waitlist input[type=email] {
  flex: 1 1 220px; padding: 13px 16px; border-radius: 999px; font-size: 16px; font-family: inherit;
  background: var(--surface); border: 1px solid var(--line); color: var(--ink);
}
.waitlist input::placeholder { color: var(--faint); }
.form-note { font-size: 13px; color: var(--faint); margin-top: 12px; }

/* final cta */
.final { text-align: center; }
.final h2 { font-size: clamp(30px, 5vw, 48px); letter-spacing: -0.02em; margin-bottom: 14px; text-wrap: balance; }
.final .waitlist { margin: 0 auto; justify-content: center; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 40px 0 60px; margin-top: 40px; }
.foot-grid { display: flex; flex-wrap: wrap; gap: 24px; justify-content: space-between; align-items: flex-start; }
footer a { color: var(--muted); font-size: 14px; display: block; margin: 6px 0; }
footer a:hover { color: var(--ink); }
.foot-col h5 { font-size: 13px; text-transform: uppercase; letter-spacing: .1em; color: var(--faint); margin-bottom: 8px; }
.foot-legal { margin-top: 28px; font-size: 12.5px; color: var(--faint); max-width: 60ch; }

/* prose (privacy / support) */
.prose { padding: 56px 0 80px; }
.prose h1 { font-size: clamp(30px, 5vw, 42px); letter-spacing: -0.02em; margin-bottom: 6px; }
.prose .eff { color: var(--faint); margin-bottom: 28px; }
.prose h2 { font-size: 20px; margin: 30px 0 8px; }
.prose p { color: var(--muted); margin: 8px 0; }
.prose strong { color: var(--ink); }

/* scroll reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; transform: none !important; } }

/* other apps (cross-promo) */
.apps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin-top: 22px; }
.app-card { display: flex; gap: 16px; align-items: center; background: var(--surface); border: 1px solid var(--card-stroke); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; transition: transform .15s ease, border-color .15s ease; }
.app-card:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--accent); }
.app-mark { flex: none; width: 54px; height: 54px; border-radius: 15px; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 22px; color: #fff; }
.app-mark.kairo { background: url("assets/kairo-icon.png") center/cover no-repeat; box-shadow: 0 1px 6px rgba(0,0,0,.3); }
.app-card h4 { font-size: 18px; margin-bottom: 2px; color: var(--ink); }
.app-card h4 .pill { font-size: 11px; font-weight: 700; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 2px 8px; margin-left: 8px; vertical-align: middle; }
.app-card p { color: var(--muted); font-size: 14px; margin-bottom: 6px; }
.app-card .app-link { color: var(--accent); font-size: 14px; font-weight: 700; }
@media (prefers-reduced-motion: reduce) { .app-card:hover { transform: none; } }

/* responsive */
@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero p.lead { margin-left: auto; margin-right: auto; }
  .hero .cta-row { justify-content: center; }
  .hero .phone { margin-top: 20px; }
  .moment { grid-template-columns: 1fr; gap: 24px; margin: 48px 0; }
  .moment:nth-child(even) .moment-visual { order: 0; }
  .moment-visual .phone, .phone { width: 240px; }
  .why-grid { grid-template-columns: 1fr; }
  .nav-actions a.hide-sm { display: none; }
}

/* ---------- ambient dawn field (persistent atmosphere) ---------- */
.ambient {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(44% 30% at 84% 4%, rgba(236,139,94,0.10), transparent 70%),
    radial-gradient(42% 30% at 10% 22%, rgba(94,92,230,0.12), transparent 70%),
    radial-gradient(60% 40% at 50% 110%, rgba(154,110,208,0.12), transparent 72%);
  animation: ambientdrift 30s ease-in-out infinite alternate;
}
@keyframes ambientdrift {
  from { transform: translate3d(-1.5%, 0, 0) scale(1.02); }
  to   { transform: translate3d(1.5%, -1.2%, 0) scale(1.06); }
}
@media (prefers-reduced-motion: reduce) { .ambient { animation: none; } }

/* the hero phone breathes */
@media (prefers-reduced-motion: no-preference) {
  .hero .phone.tilt { animation: phonefloat 8s ease-in-out infinite; }
}
@keyframes phonefloat {
  0%, 100% { transform: rotate(2deg) translateY(0); }
  50%      { transform: rotate(2deg) translateY(-12px); }
}

/* ---------- one night with Dawn (narrative) ---------- */
.nightline { max-width: 660px; margin: 0 auto; }
.beat {
  position: relative; border: 1px solid var(--card-stroke); border-radius: 20px;
  background:
    radial-gradient(120% 120% at 0% 0%, color-mix(in srgb, var(--bc, var(--accent)) 12%, transparent), transparent 55%),
    var(--surface);
  box-shadow: var(--shadow); padding: 22px 24px 22px 28px; overflow: hidden;
}
.beat::before {
  content: ""; position: absolute; left: 0; top: 18px; bottom: 18px;
  width: 4px; border-radius: 4px; background: var(--bc, var(--accent));
}
.beat .when {
  font-size: 12px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--bc, var(--accent)); margin-bottom: 10px;
}
.beat .when span { color: var(--faint); font-weight: 600; letter-spacing: 0; text-transform: none; margin-left: 10px; }
.beat .say { font-family: ui-serif, "New York", Georgia, serif; font-size: 20px; line-height: 1.4; margin-bottom: 10px; text-wrap: balance; }
.beat .do { color: var(--muted); font-size: 15px; }
.beat .do b { color: var(--bc, var(--accent)); font-weight: 700; }
.brg { text-align: center; color: var(--faint); font-size: 14px; padding: 12px 0; }
.brg::before { content: "\2193  "; opacity: .7; }
.nightcap { text-align: center; max-width: 42ch; margin: 26px auto 0; }
.nightcap p { color: var(--muted); font-size: 18px; }
.nightcap .cap {
  margin-top: 10px; font-family: ui-serif, "New York", Georgia, serif; font-size: 24px;
  background: linear-gradient(96deg, var(--sky-indigo), var(--sky-coral) 80%, var(--sky-gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}