:root {
  --bg: #fbf8f3;
  --surface: #ffffff;
  --surface-2: #fffcf8;
  --ink: #24303f;
  --muted: #63707f;
  --line: rgba(36, 48, 63, 0.1);
  --sky: #5b7cc0;
  --sky-2: #7aa0df;
  --dawn: #e9b79c;
  --haze: #f5e9de;
  --shadow: 0 20px 50px -26px rgba(36, 48, 63, 0.3);
  --card-shadow: 0 1px 2px rgba(36, 48, 63, 0.05), 0 12px 32px -20px rgba(36, 48, 63, 0.22);
  --line-strong: rgba(36, 48, 63, 0.18);
  --serif: 'Noto Serif SC', 'Noto Serif CJK SC', 'Songti SC', Georgia, serif;
  --maxw: 1140px;
  --hero-glow: radial-gradient(
    1200px 720px at 80% -10%,
    rgba(255, 247, 235, 0.96),
    rgba(255, 226, 196, 0.6) 28%,
    rgba(240, 196, 158, 0.3) 46%,
    rgba(251, 248, 243, 0) 70%
  );
}
[data-theme='dark'] {
  --bg: #0f141c;
  --surface: #141c28;
  --surface-2: #121822;
  --ink: #f7faff;
  --muted: #9aa7bc;
  --line: rgba(255, 255, 255, 0.09);
  --sky: #8fb0ea;
  --sky-2: #8fb0ea;
  --dawn: #e9b79c;
  --haze: #1a2432;
  --shadow: 0 26px 64px -30px rgba(0, 0, 0, 0.72);
  --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 14px 36px -22px rgba(0, 0, 0, 0.6);
  --line-strong: rgba(255, 255, 255, 0.16);
  --hero-glow: radial-gradient(
    1000px 640px at 80% -12%,
    rgba(143, 176, 234, 0.15),
    rgba(143, 176, 234, 0.05) 42%,
    rgba(15, 20, 28, 0) 68%
  );
}
* {
  box-sizing: border-box;
}
h1,
h2,
h3,
.sec-title,
.big {
  text-wrap: balance;
}
.lead,
.card p,
.dest p,
.phase,
.note,
figcaption,
.community,
.safari-note {
  text-wrap: pretty;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 18px;
  font-weight: 300;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  transition:
    background 1.8s cubic-bezier(0.3, 0.5, 0.7, 0.5),
    color 1.8s cubic-bezier(0.3, 0.5, 0.7, 0.5);
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
b {
  font-weight: 500;
}
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 15px 28px;
  position: relative;
  background: transparent;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
  font-size: 18px;
}
.brand img {
  border-radius: 8px;
}
.nav-links {
  display: flex;
  gap: 28px;
  font-size: 15px;
  color: var(--muted);
}
.nav-links a:hover {
  color: var(--ink);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.github-link {
  gap: 7px;
  text-decoration: none;
}
.github-link svg {
  flex: none;
}
.ghost-btn {
  background: none;
  border: 1px solid var(--line);
  color: var(--ink);
  height: 34px;
  min-width: 34px;
  padding: 0 11px;
  border-radius: 9px;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition:
    border-color 0.2s,
    background 0.2s;
}
.ghost-btn:hover {
  border-color: var(--sky);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--ink);
  color: var(--bg);
  padding: 12px 22px;
  border-radius: 11px;
  font-weight: 400;
  font-size: 16px;
  cursor: pointer;
  transition:
    transform 0.2s,
    box-shadow 0.2s,
    opacity 0.2s;
  border: 1px solid transparent;
}
.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--card-shadow);
}
.btn-sm {
  padding: 8px 15px;
  font-size: 14px;
  border-radius: 9px;
}
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn-ghost:hover {
  border-color: var(--sky);
}
.install-split {
  position: relative;
  display: inline-flex;
  align-items: stretch;
  gap: 1.5px;
}
.install-main {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}
.install-toggle {
  padding: 12px 12px;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}
.install-toggle svg {
  transition: transform 0.2s;
}
.install-split.open .install-toggle svg {
  transform: rotate(180deg);
}
.install-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--card-shadow);
  padding: 6px;
  display: none;
  z-index: 20;
}
.install-split.open .install-menu {
  display: block;
}
.install-menu a {
  display: block;
  padding: 9px 14px;
  border-radius: 8px;
  color: var(--ink);
  font-size: 15px;
  white-space: nowrap;
}
.install-menu a:hover {
  background: var(--line);
}
@media (max-width: 720px) {
  .nav {
    gap: 12px;
    padding: 12px 16px;
  }
  .nav-links {
    gap: 12px;
  }
  .nav-actions {
    gap: 6px;
  }
  .github-link {
    min-width: 34px;
    padding: 0;
  }
  .github-link span {
    display: none;
  }
}

.site-glow {
  position: relative;
}
.site-glow::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-glow);
  pointer-events: none;
}
.site-glow > * {
  position: relative;
}
.masthead {
  overflow: hidden;
}
.hero {
  position: relative;
  padding: 120px 0 96px;
}
.hero .wrap {
  position: relative;
}
.eyebrow {
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sky);
  margin: 0 0 22px;
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 1.12;
  margin: 0 0 24px;
  letter-spacing: -0.01em;
}
.lead {
  font-size: clamp(18px, 2vw, 21px);
  color: var(--muted);
  max-width: 54ch;
  margin: 0 0 34px;
}
.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  align-items: center;
}
section {
  padding: 92px 0;
}
.sec-eyebrow {
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sky);
  margin: 0 0 14px;
}
.sec-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(26px, 3.4vw, 40px);
  line-height: 1.28;
  margin: 0 0 46px;
  letter-spacing: -0.01em;
  max-width: 22ch;
}

.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 30px;
  box-shadow: var(--card-shadow);
}
.card .tag {
  font-size: 13px;
  color: var(--sky);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 16px;
  display: block;
}
.card h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 21px;
  margin: 0 0 12px;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}
@media (max-width: 820px) {
  .bento {
    grid-template-columns: 1fr;
  }
}

.dest {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 22px;
  box-shadow: var(--card-shadow);
  text-align: center;
}
.dest .ico {
  height: 34px;
  width: auto;
  margin: 0 auto 14px;
}
[data-theme='dark'] .ico-invert {
  filter: invert(1);
}
.alt-install {
  margin: 14px 0 0;
  font-size: 14px;
}
.alt-install a {
  color: var(--muted);
  border-bottom: 1px solid transparent;
  transition:
    color 0.2s,
    border-color 0.2s;
}
.alt-install a:hover {
  color: var(--ink);
  border-color: var(--line);
}
.dest h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 20px;
  margin: 0 0 8px;
}
.dest p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}
.note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 15px;
}

.shots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}
.shot {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: var(--card-shadow);
  margin: 0;
}
.shot img {
  width: 100%;
}
.shot figcaption {
  padding: 16px 22px;
  color: var(--muted);
  font-size: 15px;
  border-top: 1px solid var(--line);
}
@media (max-width: 820px) {
  .shots {
    grid-template-columns: 1fr;
  }
}

.story {
  text-align: center;
}
.gather {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 14px auto 54px;
  max-width: 660px;
}
.frag {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 11px 18px;
  font-size: 15px;
  color: var(--muted);
  box-shadow: var(--card-shadow);
  transition:
    transform 1s cubic-bezier(0.2, 0.7, 0.2, 1),
    opacity 1s ease;
}
.phase {
  max-width: 46ch;
  margin: 0 auto 18px;
  color: var(--muted);
  font-size: 18px;
}
.phase b {
  color: var(--ink);
}
.story .big {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(24px, 3.4vw, 38px);
  color: var(--ink);
  margin: 44px auto 0;
  max-width: 22ch;
  line-height: 1.3;
}

.community {
  margin-top: 26px;
  color: var(--muted);
  font-size: 15px;
}

.foot {
  padding: 104px 0 60px;
  position: relative;
  overflow: hidden;
}
.foot::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--hero-glow);
  opacity: 0.7;
  pointer-events: none;
}
.foot .wrap {
  position: relative;
  text-align: center;
}
.foot .big {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(28px, 4vw, 50px);
  margin: 0 0 32px;
  line-height: 1.2;
}
.store-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}
.safari-note {
  color: var(--muted);
  font-size: 14px;
  margin: 0 0 44px;
}
.copyright {
  margin-top: 22px;
  color: var(--muted);
  font-size: 13px;
}

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
}
.js .reveal.in {
  opacity: 1;
  transform: none;
}
.js .reveal[data-d='1'] {
  transition-delay: 0.08s;
}
.js .reveal[data-d='2'] {
  transition-delay: 0.16s;
}
.js .reveal[data-d='3'] {
  transition-delay: 0.24s;
}
.js .gather .frag {
  transition:
    transform 1s cubic-bezier(0.2, 0.7, 0.2, 1),
    opacity 1s ease;
}
.js .gather:not(.in) .frag {
  opacity: 0.5;
}
.js .gather:not(.in) .frag:nth-child(1) {
  transform: translate(-48px, -30px) rotate(-9deg);
}
.js .gather:not(.in) .frag:nth-child(2) {
  transform: translate(0, -54px) rotate(4deg);
}
.js .gather:not(.in) .frag:nth-child(3) {
  transform: translate(46px, -20px) rotate(8deg);
}
.js .gather:not(.in) .frag:nth-child(4) {
  transform: translate(58px, 26px) rotate(-5deg);
}
.js .gather:not(.in) .frag:nth-child(5) {
  transform: translate(-52px, 30px) rotate(6deg);
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
  .js .gather .frag,
  .js .gather:not(.in) .frag {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* Sponsors — angel supporters thank-you band */
.sponsors .sec-title {
  margin-bottom: 20px;
}
.sponsors-lead {
  color: var(--muted);
  font-size: clamp(17px, 1.8vw, 19px);
  max-width: 52ch;
  margin: 0 0 44px;
}
.sponsors-grid {
  column-count: 3;
  column-gap: 18px;
}
.sponsor {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 26px 28px;
  box-shadow: var(--card-shadow);
  margin: 0 0 18px;
  break-inside: avoid;
  display: block;
}
.sponsor:nth-child(3n + 2) {
  background: var(--surface-2);
}
.sponsor-amt {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 26px;
  line-height: 1;
  color: var(--sky);
  margin-bottom: 16px;
}
.sponsor blockquote {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink);
  margin: 0 0 18px;
  flex: 1;
}
.sponsor-note {
  font-size: 16px;
  line-height: 1.6;
  color: var(--muted);
  margin: 0 0 18px;
  flex: 1;
}
.sponsor figcaption {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 0.03em;
}
.sp-name {
  color: var(--sky);
  font-weight: 500;
}
a.sp-name {
  border-bottom: 1px solid transparent;
  transition:
    color 0.2s,
    border-color 0.2s;
}
a.sp-name:hover {
  color: var(--ink);
  border-color: var(--sky);
}
.sp-date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.sponsors-total {
  margin: 28px 0 0;
  font-family: var(--serif);
  font-size: clamp(17px, 1.9vw, 20px);
  color: var(--ink);
}
.sponsors-names {
  margin-top: 14px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.95;
}
.sponsors-names a {
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  transition:
    color 0.2s,
    border-color 0.2s;
}
.sponsors-names a:hover {
  color: var(--ink);
  border-color: var(--sky);
}
@media (max-width: 980px) {
  .sponsors-grid {
    column-count: 2;
  }
}
@media (max-width: 640px) {
  .sponsors-grid {
    column-count: 1;
  }
}

/* Capture — editorial: feature panel + numbered list */
.capture-lay {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 44px;
  align-items: start;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 38px 36px;
  box-shadow: var(--card-shadow);
}
.feature .tag {
  font-size: 13px;
  color: var(--sky);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 16px;
  display: block;
}
.feature h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(22px, 2.4vw, 28px);
  margin: 0 0 16px;
}
.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 16.5px;
  line-height: 1.85;
}
.numlist {
  list-style: none;
  margin: 0;
  padding: 0;
}
.numlist li {
  display: flex;
  gap: 22px;
  padding: 24px 4px;
  border-top: 1px solid var(--line);
}
.numlist li:first-child {
  border-top: 0;
  padding-top: 2px;
}
.numlist li:last-child {
  padding-bottom: 2px;
}
.numlist .num {
  font-family: var(--serif);
  font-size: 16px;
  color: var(--sky);
  font-variant-numeric: tabular-nums;
  padding-top: 3px;
  min-width: 22px;
}
.numlist h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  margin: 0 0 6px;
}
.numlist p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}
@media (max-width: 820px) {
  .capture-lay {
    grid-template-columns: 1fr;
    gap: 26px;
  }
}

/* Sync — hub-and-spoke distribution flow */
.flow {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hub {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: 22px 36px;
  box-shadow: var(--card-shadow);
}
.hub-ico {
  border-radius: 12px;
  margin-bottom: 10px;
}
.hub-name {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 21px;
}
.hub-sub {
  color: var(--muted);
  font-size: 14.5px;
  margin-top: 2px;
}
.flow-tree {
  width: 100%;
  max-width: 760px;
  height: 56px;
  display: block;
}
.flow-tree path {
  stroke: var(--sky-2);
  opacity: 0.5;
}
.dests {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  width: 100%;
}
@media (max-width: 820px) {
  .flow-tree {
    display: none;
  }
  .dests {
    grid-template-columns: 1fr;
    gap: 14px;
    margin-top: 22px;
  }
}

/* OAuth callback */
.oauth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 20px;
  background: var(--hero-glow), var(--bg);
}
.oauth-card {
  width: min(100%, 640px);
  padding: 36px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
  text-align: center;
}
.oauth-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  font-weight: 600;
}
.oauth-brand img {
  border-radius: 9px;
}
.oauth-card h1 {
  margin: 18px 0 8px;
  font-size: clamp(24px, 5vw, 32px);
  line-height: 1.3;
}
.oauth-subtitle {
  margin: 0 auto;
  color: var(--muted);
  font-size: 16px;
}
.oauth-status-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
  font-size: 26px;
  font-weight: 600;
}
.oauth-status-icon-loading::before {
  content: '';
  width: 24px;
  height: 24px;
  border: 2px solid var(--line-strong);
  border-top-color: var(--sky);
  border-radius: 50%;
  animation: oauth-spin 0.8s linear infinite;
}
.oauth-status-icon-success {
  color: #2f7d55;
}
.oauth-status-icon-error {
  color: #b44747;
}
.oauth-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 24px;
}
.oauth-fallback {
  margin-top: 24px;
  padding: 16px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface-2);
  text-align: left;
  font-size: 15px;
}
.oauth-fallback p {
  margin: 6px 0 0;
  color: var(--muted);
}
.oauth-test-card {
  text-align: left;
}
.oauth-test-grid {
  display: grid;
  gap: 16px;
}
.oauth-test-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.oauth-field {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}
.oauth-field input {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--ink);
  font: inherit;
}
@keyframes oauth-spin {
  to {
    transform: rotate(360deg);
  }
}
@media (max-width: 560px) {
  .oauth-card {
    padding: 28px 20px;
  }
  .oauth-actions,
  .oauth-test-actions {
    flex-direction: column;
  }
}