/* DocSync marketing site — Brasth Document Sync for Google Docs */

:root {
  --paper: #F6F1E8;
  --paper-2: #EFE8DA;
  --ink: #1A1814;
  --ink-soft: #3F3A33;
  --muted: #6B645A;
  --line: #D8D0C3;
  --cyan: #22D3EE;
  --navy: #0F172A;
  --accent: #0E7490;
  --accent-bright: #22D3EE;
  --accent-deep: #1D4ED8;
  --accent-soft: #D7F6FB;
  --btn: #2563EB;
  --btn-hover: #1D4ED8;
  --white: #FFFcf7;
  --header-bg: rgba(246, 241, 232, 0.92);
  --font-display: "Fraunces", "Iowan Old Style", Georgia, serif;
  --font-sans: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --mono: var(--font-mono);
  --measure: 40rem;
  --wrap: 72rem;
  --header-h: 4.25rem;
  --radius: 0.5rem;
  --radius-btn: 4px;
  --shadow: 0 10px 28px rgba(26, 24, 20, 0.06);
}

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

html {
  scroll-behavior: smooth;
}

@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;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--accent);
  color: var(--paper);
  padding: 0.5rem 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-btn);
}

.skip-link:focus {
  top: 0.75rem;
}

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

.wrap-narrow {
  width: min(calc(100% - 2rem), 46rem);
  margin-inline: auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
}

.brand:hover {
  color: var(--ink);
}

.brand img {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.brand-kicker {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
}

.brand-name {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--radius-btn);
  padding: 0.45rem 0.65rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.35rem;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  background: var(--btn);
  color: #fff !important;
  padding: 0.42rem 0.8rem;
  border-radius: var(--radius-btn);
  font-weight: 600 !important;
  font-size: 0.88rem !important;
}

.nav-cta:hover {
  background: var(--btn-hover);
  color: #fff !important;
}

/* Launch notice */

.launch-strip {
  background: var(--accent-soft);
  border-bottom: 1px solid var(--line);
  padding: 0.65rem 0;
}

.launch-strip p {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
}

.launch-strip a {
  font-weight: 600;
}

/* Hero */

.hero {
  position: relative;
  background-color: var(--paper);
  color: var(--ink);
  overflow: hidden;
  padding: 4.5rem 0 3.5rem;
}

.hero-grid {
  display: grid;
  gap: 2.75rem;
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  margin: 0 0 1.1rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow .dot {
  width: 0.28rem;
  height: 0.28rem;
  border-radius: 50%;
  background: var(--line);
}

.hero h1,
.page-hero h1,
.not-found h1,
.split-main h2,
.page-intro h1,
.prose h1,
.prose h2,
.closing h2,
.tagline {
  font-family: var(--font-display);
}

.hero h1 {
  margin: 0 0 0.85rem;
  font-weight: 600;
  font-size: clamp(2.15rem, 5.4vw, 3.65rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
  font-optical-sizing: none;
  font-variation-settings: "opsz" 144;
  color: var(--ink);
}

.tagline {
  margin: 0 0 1.25rem;
  color: var(--accent);
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  font-weight: 500;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0 0 1.75rem;
  max-width: 38rem;
  color: var(--ink-soft);
  font-family: var(--font-sans);
  font-size: 1.2rem;
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-bottom: 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.72rem 1.15rem;
  border-radius: var(--radius-btn);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  line-height: 1.2;
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn-ghost:hover {
  color: var(--accent-deep);
  border-color: var(--accent-deep);
}

.btn-blue {
  background: var(--btn);
  color: #fff;
}

.btn-blue:hover {
  background: var(--btn-hover);
  color: #fff;
}

.hero-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  max-width: 36rem;
}

.hero-banner {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  background: var(--white);
}

.hero-banner figcaption {
  margin: 0;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-banner img {
  width: 100%;
  display: block;
}

.hero-banner video {
  width: 100%;
  height: auto;
  max-height: 22rem;
  display: block;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  object-position: top center;
  background: var(--paper-2);
}

.meta-bar {
  background: var(--paper-2);
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 0.95rem 0;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.meta-bar ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.meta-bar strong {
  color: var(--ink);
  font-weight: 600;
}

/* Editorial split sections */

.band {
  padding: 4.5rem 0;
}

.band-alt {
  background: var(--paper-2);
}

.band-dark {
  background: var(--paper-2);
  color: var(--ink);
  border-top: 1px solid var(--line);
}

.split {
  display: grid;
  gap: 1.5rem 3rem;
}

.kicker {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 500;
}

.band-dark .kicker {
  color: var(--accent);
}

.split-main h2,
.page-intro h1,
.prose h1,
.prose h2 {
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.split-main > h2 {
  margin: 0 0 0.85rem;
  font-size: clamp(1.8rem, 3vw, 2.35rem);
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 48;
}

.deck {
  margin: 0 0 2rem;
  max-width: var(--measure);
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 1.2rem;
}

.band-dark .deck {
  color: var(--ink-soft);
}

/* Feature list */

.feature-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.feature-list li {
  display: grid;
  gap: 0.35rem 2rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
}

.feature-list h3 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.feature-list p {
  margin: 0;
  color: var(--muted);
}

/* How-it-works teaser */

.steps {
  display: grid;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  position: relative;
  padding: 1.15rem 1.2rem 1.15rem 4.1rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 1rem;
  top: 1.2rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
}

.steps h3 {
  margin: 0 0 0.3rem;
  font-size: 1.05rem;
}

.steps p {
  margin: 0;
  color: var(--muted);
}

.more-link {
  display: inline-flex;
  margin-top: 1.5rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--accent);
}

.more-link:hover {
  color: var(--accent-deep);
}

/* Screenshots */

.shot-grid {
  display: grid;
  gap: 1.5rem;
}

.shot {
  margin: 0;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.shot a {
  display: block;
  text-decoration: none;
  color: inherit;
  cursor: zoom-in;
}

.shot a img {
  transition: opacity 0.2s ease;
}

.shot a:hover img,
.shot a:focus-visible img {
  opacity: 0.92;
}

.shot img {
  width: 100%;
  background: var(--paper-2);
}

.shot video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: var(--paper-2);
}

.shot-wide {
  margin: 1.5rem 0 2rem;
}

.demo-grid {
  display: grid;
  gap: 1.5rem;
}


.shot figcaption {
  padding: 0.95rem 1.1rem 1.1rem;
  border-top: 1px solid var(--line);
}

.shot figcaption a {
  display: inline;
  cursor: pointer;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.shot-label {
  display: block;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.shot figcaption p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Presets */

.preset-grid {
  display: grid;
  gap: 1rem;
}

.preset {
  padding: 1.25rem 1.3rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.preset h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
}

.preset p {
  margin: 0;
  color: var(--muted);
}

.preset ul {
  margin: 0.7rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
}

/* Page chrome */

.page-hero {
  background: var(--paper);
  color: var(--ink);
  padding: 3.4rem 0 2.8rem;
  border-bottom: 1px solid var(--line);
}

.page-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
  font-optical-sizing: none;
  font-variation-settings: "opsz" 144;
}

.page-hero .lede {
  margin-bottom: 0;
}

.prose {
  padding: 3.5rem 0 4.5rem;
}

.prose h2 {
  margin: 2.4rem 0 0.7rem;
  font-size: 1.65rem;
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 36;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h3 {
  margin: 1.6rem 0 0.45rem;
  font-size: 1.1rem;
}

.prose p,
.prose li {
  color: var(--ink-soft);
}

.prose p {
  margin: 0 0 1rem;
}

.prose ul,
.prose ol {
  margin: 0 0 1.15rem;
  padding-left: 1.2rem;
}

.prose li + li {
  margin-top: 0.35rem;
}

.prose code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-btn);
  padding: 0.08em 0.35em;
  color: var(--ink);
}

.callout {
  margin: 1.5rem 0;
  padding: 1.1rem 1.2rem;
  background: var(--accent-soft);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.callout p {
  margin: 0;
  color: var(--ink);
}

/* Setup steps (how-it-works) */

.setup {
  display: grid;
  gap: 0;
  margin: 0 0 2rem;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.setup > li {
  display: grid;
  gap: 0.4rem;
  padding: 1.5rem 0 1.55rem 3.4rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}

.setup .num {
  position: absolute;
  left: 0;
  top: 1.55rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--accent);
}

.setup h3 {
  margin: 0;
  font-size: 1.12rem;
}

.setup p {
  margin: 0;
}

.setup .where {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}


/* User guide */

.guide-layout {
  display: grid;
  gap: 2.5rem;
  padding: 3.5rem 0 4.5rem;
}

.guide-layout .prose {
  padding: 0;
  min-width: 0;
}

.guide-toc {
  font-size: 0.92rem;
}

.guide-toc .kicker {
  margin-bottom: 0.85rem;
  position: static;
  padding-top: 0;
}

.guide-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.guide-toc li + li {
  margin-top: 0.4rem;
}

.guide-toc a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 500;
}

.guide-toc a:hover,
.guide-toc a:focus-visible {
  color: var(--ink);
}

.heading-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.15rem;
  margin: 0 0 1.15rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
}

.heading-tools a {
  color: var(--muted);
  text-decoration: none;
}

.heading-tools a:hover,
.heading-tools a:focus-visible {
  color: var(--accent);
}

.guide-layout .prose h2[id] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
  margin-bottom: 0.35rem;
}

@media (min-width: 720px) {
  .guide-layout {
    grid-template-columns: 13.5rem minmax(0, 1fr);
    align-items: start;
    gap: 2rem 3.5rem;
  }

  .guide-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.2rem);
  }
}

/* 404 */

.not-found {
  min-height: calc(100vh - 14rem);
  display: grid;
  align-items: center;
  background: var(--paper);
  color: var(--ink);
  padding: 4rem 0;
}

.not-found h1 {
  margin: 0 0 0.7rem;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-optical-sizing: none;
  font-variation-settings: "opsz" 144;
}

.not-found p {
  color: var(--ink-soft);
  font-family: var(--font-sans);
  font-size: 1.2rem;
  max-width: 32rem;
}

/* Footer */

.site-footer {
  background: var(--paper-2);
  color: var(--muted);
  padding: 2.6rem 0 2.1rem;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
}

.site-footer a {
  color: var(--ink-soft);
  text-decoration: none;
}

.site-footer a:hover {
  color: var(--accent);
}

.footer-brand {
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-fine {
  margin: 0.4rem 0 0;
  max-width: 40rem;
}

/* Lightbox */

.lightbox[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(26, 24, 20, 0.88);
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.lightbox-inner {
  width: min(100%, 68rem);
  position: relative;
}

.lightbox img {
  width: 100%;
  border-radius: 6px;
  background: var(--paper-2);
}

.lightbox-close {
  position: absolute;
  top: -2.4rem;
  right: 0;
  background: transparent;
  border: 0;
  color: var(--paper);
  font: inherit;
  cursor: pointer;
}

.lightbox-cap {
  margin: 0.7rem 0 0;
  color: #EFE8DA;
  font-size: 0.95rem;
}

/* Closing CTA */

.closing {
  text-align: left;
}

.closing h2 {
  margin: 0 0 0.7rem;
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 48;
}

/* Responsive */

@media (min-width: 720px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .split {
    grid-template-columns: 10.5rem minmax(0, 1fr);
    align-items: start;
  }

  .kicker {
    position: sticky;
    top: calc(var(--header-h) + 1.2rem);
    padding-top: 0.35rem;
  }

  .feature-list li {
    grid-template-columns: 15rem minmax(0, 1fr);
  }

  .steps {
    grid-template-columns: 1fr 1fr;
  }

  .shot-grid {
    grid-template-columns: 1fr 1fr;
  }

  .shot-grid .shot:first-child,
  .shot-grid .wide {
    grid-column: 1 / -1;
  }

  .demo-grid {
    grid-template-columns: 1fr 1fr;
  }

  .preset-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr;
    align-items: start;
  }
}

@media (min-width: 980px) {
  .hero {
    padding: 5.5rem 0 4rem;
  }

  .steps {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 719px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.6rem 1rem 1rem;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
  }

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

  .site-nav a {
    padding: 0.7rem 0.2rem;
    border-bottom: 1px solid var(--line);
  }

  .nav-cta {
    margin-top: 0.55rem;
    justify-content: center;
  }
}