/* OneThought — site styles. Blue-glass, serif headlines, motion. */

:root {
  --bg: #f4f7fc;
  --bg-deep: #e8eef8;
  --ink: #0c1426;
  --ink-soft: rgba(12, 20, 38, 0.68);
  --ink-faint: rgba(12, 20, 38, 0.45);
  --rule: rgba(12, 20, 38, 0.08);
  --blue-1: #2e4f8e;
  --blue-2: #4d7ec7;
  --blue-3: #1a2c54;
  --blue-glow: rgba(77, 126, 199, 0.32);
  --glass: rgba(255, 255, 255, 0.55);
  --glass-strong: rgba(255, 255, 255, 0.85);
  --serif: ui-serif, "New York", "Iowan Old Style", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #060c18;
    --bg-deep: #04080f;
    --ink: #f0f4fb;
    --ink-soft: rgba(240, 244, 251, 0.72);
    --ink-faint: rgba(240, 244, 251, 0.5);
    --rule: rgba(255, 255, 255, 0.08);
    --glass: rgba(255, 255, 255, 0.05);
    --glass-strong: rgba(255, 255, 255, 0.08);
  }
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body::before {
  /* Soft floating orbs behind everything for depth */
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(600px 400px at 20% 10%, rgba(77, 126, 199, 0.15), transparent 60%),
    radial-gradient(500px 500px at 80% 80%, rgba(46, 79, 142, 0.12), transparent 60%);
  pointer-events: none;
  z-index: -1;
}

a {
  color: var(--blue-2);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--blue-1); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}
.container--narrow {
  max-width: 760px;
}

/* Header */
header.site {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 18px 0;
  background: rgba(244, 247, 252, 0.78);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--rule);
}
@media (prefers-color-scheme: dark) {
  header.site { background: rgba(6, 12, 24, 0.78); }
}
header.site .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header.site .brand {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 22px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
header.site .brand span {
  color: var(--ink-soft);
  font-weight: 300;
  font-style: italic;
  font-size: 14px;
  margin-left: 4px;
}
header.site nav a {
  margin-left: 22px;
  font-size: 14px;
  color: var(--ink-soft);
  font-weight: 500;
}
header.site nav a:hover { color: var(--ink); }

/* Hero */
.hero {
  position: relative;
  padding: 80px 0 40px;
  overflow: visible;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 880px) {
  .hero { padding: 56px 0 24px; }
  .hero-grid { grid-template-columns: 1fr; gap: 32px; }
}

.hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  font-weight: 600;
  background: rgba(46, 79, 142, 0.1);
  color: var(--blue-1);
  margin: 0 0 18px;
}
@media (prefers-color-scheme: dark) {
  .hero .eyebrow { background: rgba(77, 126, 199, 0.18); color: #aac6ee; }
}

.hero h1 {
  font-family: var(--serif);
  font-weight: 200;
  font-size: clamp(40px, 6.5vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin: 0 0 18px;
}
.hero h1 em {
  font-style: italic;
  color: var(--blue-1);
}
@media (prefers-color-scheme: dark) {
  .hero h1 em { color: #aac6ee; }
}

.hero p.lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 28px;
  max-width: 540px;
}

.hero .cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.hero .cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--blue-1), var(--blue-2));
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.005em;
  box-shadow: 0 18px 40px -16px var(--blue-glow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.hero .cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 48px -18px var(--blue-glow);
  color: #fff;
}
.hero .cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 13px 18px;
  border-radius: 999px;
  background: var(--glass-strong);
  border: 1px solid var(--rule);
  color: var(--ink);
  font-weight: 500;
  font-size: 14px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.hero .cta-secondary:hover { color: var(--ink); border-color: var(--blue-2); }

/* Phone mockup — single screenshot floating with shadow + tilt */
.phone-stack {
  position: relative;
  perspective: 1500px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 520px;
}
.phone {
  position: relative;
  width: 280px;
  border-radius: 44px;
  overflow: hidden;
  box-shadow:
    0 60px 120px -40px var(--blue-glow),
    0 30px 60px -30px rgba(0, 0, 0, 0.4),
    inset 0 0 0 1.5px rgba(255, 255, 255, 0.18);
  transform: rotate(-4deg);
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.phone img {
  width: 100%;
  height: auto;
  display: block;
}
.phone-stack:hover .phone {
  transform: rotate(0deg) translateY(-4px);
}
.phone--back-l {
  position: absolute;
  width: 230px;
  border-radius: 38px;
  transform: rotate(-12deg) translate(-90px, 30px) scale(0.85);
  opacity: 0.6;
  z-index: -1;
  filter: blur(0.5px);
}
.phone--back-r {
  position: absolute;
  width: 230px;
  border-radius: 38px;
  transform: rotate(8deg) translate(95px, 50px) scale(0.85);
  opacity: 0.6;
  z-index: -1;
  filter: blur(0.5px);
}
@media (max-width: 880px) {
  .phone-stack { min-height: 440px; }
  .phone { width: 230px; }
  .phone--back-l, .phone--back-r { width: 190px; }
  .phone--back-l { transform: rotate(-12deg) translate(-70px, 20px) scale(0.85); }
  .phone--back-r { transform: rotate(8deg) translate(70px, 36px) scale(0.85); }
}

/* Trust strip */
.trust-strip {
  margin: 48px 0 0;
  padding: 28px 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-around;
  font-size: 13px;
  color: var(--ink-soft);
}
.trust-strip .pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}
.trust-strip svg {
  width: 14px; height: 14px;
  color: var(--blue-2);
}

/* Section structure */
section.module {
  padding: 80px 0;
}
.section-eyebrow {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--blue-1);
  margin: 0 0 14px;
}
@media (prefers-color-scheme: dark) {
  .section-eyebrow { color: #aac6ee; }
}
.section-title {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(30px, 4.4vw, 44px);
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 14px;
  max-width: 720px;
}
.section-title em { font-style: italic; color: var(--blue-1); }
@media (prefers-color-scheme: dark) {
  .section-title em { color: #aac6ee; }
}
.section-lede {
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0 0 36px;
  max-width: 600px;
}

/* Showcase: alternating screenshot + text rows */
.showcase-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin: 60px 0;
}
.showcase-row.flip { grid-template-columns: 1fr 1fr; }
.showcase-row.flip .showcase-art { order: 2; }
@media (max-width: 880px) {
  .showcase-row, .showcase-row.flip {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .showcase-row.flip .showcase-art { order: 0; }
}
.showcase-art {
  display: flex;
  justify-content: center;
}
.showcase-art .phone {
  width: 280px;
  transform: rotate(0);
}
.showcase-row:hover .phone {
  transform: rotate(-2deg) translateY(-4px);
}
.showcase-text h3 {
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(26px, 3vw, 36px);
  letter-spacing: -0.005em;
  line-height: 1.18;
  margin: 0 0 14px;
}
.showcase-text h3 em { font-style: italic; color: var(--blue-1); }
@media (prefers-color-scheme: dark) {
  .showcase-text h3 em { color: #aac6ee; }
}
.showcase-text p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 12px;
  max-width: 460px;
}
.showcase-text ul {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
}
.showcase-text ul li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.showcase-text ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-2);
}

/* Feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin: 40px 0;
}
.feature {
  background: var(--glass);
  border: 1px solid var(--rule);
  border-radius: 22px;
  padding: 26px 22px;
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transition: transform 0.25s ease, border-color 0.25s ease;
}
.feature:hover {
  transform: translateY(-4px);
  border-color: var(--blue-2);
}
.feature .icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue-1), var(--blue-2));
  color: #fff;
  margin: 0 0 14px;
}
.feature .icon svg { width: 20px; height: 20px; }
.feature h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  margin: 0 0 8px;
  letter-spacing: -0.005em;
}
.feature p {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-soft);
  margin: 0;
}

/* Big blue-glass quote module */
.quote-module {
  margin: 80px 0;
  padding: 64px 32px;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--blue-1) 0%, var(--blue-2) 50%, var(--blue-3) 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  text-align: center;
  box-shadow: 0 30px 80px -30px var(--blue-glow);
}
.quote-module::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.18), transparent 40%);
  pointer-events: none;
}
.quote-module .quote {
  font-family: var(--serif);
  font-weight: 200;
  font-style: italic;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.3;
  margin: 0 auto 16px;
  max-width: 720px;
}
.quote-module .attr {
  font-size: 13px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  opacity: 0.7;
}

/* Page title block (non-hero pages) */
.page-title {
  margin: 56px 0 8px;
  font-family: var(--serif);
  font-weight: 300;
  font-size: clamp(32px, 4.4vw, 48px);
  letter-spacing: -0.01em;
  line-height: 1.15;
}
.page-subtitle {
  margin: 0 0 36px;
  color: var(--ink-soft);
  font-size: 15px;
  font-family: var(--serif);
  font-style: italic;
}

/* Long-form sections (Help/Privacy/Terms/Support) */
.longform section {
  margin: 36px 0;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--rule);
}
.longform section:last-child { border-bottom: none; }
.longform h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 24px;
  margin: 0 0 14px;
  letter-spacing: -0.005em;
}
.longform h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  margin: 24px 0 8px;
}
.longform p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--ink-soft);
  margin: 0 0 12px;
}
.longform ul {
  padding-left: 20px;
  color: var(--ink-soft);
}
.longform ul li {
  margin-bottom: 8px;
  line-height: 1.6;
}
.longform ul li strong { color: var(--ink); }

/* Callout */
.callout {
  margin: 32px 0;
  padding: 22px 26px;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid var(--rule);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  font-family: var(--serif);
  font-style: italic;
  font-size: 17px;
  color: var(--ink);
  line-height: 1.5;
}
.callout strong {
  font-style: normal;
  color: var(--blue-1);
}
@media (prefers-color-scheme: dark) {
  .callout strong { color: #aac6ee; }
}

/* Tag chip */
.chip {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(46, 79, 142, 0.1);
  color: var(--blue-1);
  font-size: 12px;
  font-weight: 600;
  margin-right: 6px;
  margin-bottom: 6px;
}
@media (prefers-color-scheme: dark) {
  .chip { background: rgba(77, 126, 199, 0.2); color: #aac6ee; }
}

/* Footer */
footer.site {
  margin-top: 80px;
  padding: 56px 0 64px;
  border-top: 1px solid var(--rule);
  background: var(--bg-deep);
}
footer.site .row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
}
@media (max-width: 720px) {
  footer.site .row { grid-template-columns: 1fr 1fr; }
}
footer.site .brand-block {
  font-family: var(--serif);
  font-weight: 300;
  font-size: 18px;
  color: var(--ink);
}
footer.site .brand-block p {
  font-size: 13px;
  color: var(--ink-faint);
  margin: 8px 0 0;
  font-style: italic;
}
footer.site h4 {
  font-size: 12px;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 14px;
  font-weight: 600;
}
footer.site nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
footer.site nav a {
  font-size: 14px;
  color: var(--ink-soft);
}
footer.site nav a:hover { color: var(--ink); }
footer.site .copyright {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  font-size: 12px;
  color: var(--ink-faint);
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive tweaks */
@media (max-width: 540px) {
  header.site nav a { margin-left: 12px; font-size: 13px; }
  .container { padding: 0 18px; }
  .quote-module { padding: 44px 22px; border-radius: 22px; }
  section.module { padding: 56px 0; }
}