/* DocsUnderstood marketing site — page styles */

html, body { background: var(--color-bg); color: var(--color-text); }
body { font: var(--text-body); }

/* ─── Reusables ─── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 880px; margin: 0 auto; padding: 0 32px; }

.eyebrow {
  font: var(--text-overline);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-3);
  margin: 0;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-brand-blue-2); }

button { font-family: inherit; }

/* ─── Buttons ─── */
.btn {
  all: unset; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px;
  padding: 0 18px;
  font: var(--text-label);
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: background var(--duration-short) var(--easing-enter),
              color var(--duration-short) var(--easing-enter),
              border-color var(--duration-short) var(--easing-enter),
              transform var(--duration-micro) var(--easing-enter);
  box-sizing: border-box;
  white-space: nowrap;
}
.btn:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.btn-primary { background: var(--color-primary); color: white; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}
.btn-secondary:hover { background: var(--color-surface-2); border-color: var(--color-text-3); }
.btn-ghost { background: transparent; color: var(--color-text-3); }
.btn-ghost:hover { color: var(--color-text); }
.btn-lg { min-height: 52px; padding: 0 26px; font-size: 16px; }
.btn-sm { min-height: 32px; padding: 0 12px; font-size: 13px; }

/* ─── Top nav ─── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  -webkit-backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--duration-short) var(--easing-enter);
}
.nav.scrolled { border-bottom-color: var(--color-border); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}
.nav-links {
  display: flex; align-items: center; gap: 28px;
  font: var(--text-body-sm);
}
.nav-links a {
  color: var(--color-text-2);
  font-weight: 500;
}
.nav-links a:hover { color: var(--color-text); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

/* ─── Logo ─── */
.logo {
  display: inline-flex; align-items: center;
  text-decoration: none;
}
.logo-img {
  height: 28px;
  width: auto;
  display: block;
}
[data-theme="dark"] .logo-img {
  filter: invert(1) hue-rotate(180deg);
}

/* ─── Hero ─── */
/* (Hero styles live inline in index.html — slider-specific) */

/* ─── Window mock ─── */
.window {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.window-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px;
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}
.window-bar .traffic {
  display: flex; gap: 6px;
}
.window-bar .traffic span {
  width: 11px; height: 11px; border-radius: 50%;
  background: #DEDEDE;
}
.window-bar .traffic span:nth-child(1) { background: #FF5F57; }
.window-bar .traffic span:nth-child(2) { background: #FEBC2E; }
.window-bar .traffic span:nth-child(3) { background: #28C840; }
.window-bar .title {
  font: var(--text-caption);
  color: var(--color-text-3);
  margin-left: auto;
  margin-right: auto;
  padding-right: 56px;
}

/* Hero document mock */
.doc-mock {
  padding: 28px 28px 24px;
  font: var(--text-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--color-text-3);
}
.doc-mock h4 {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 14px;
  letter-spacing: 0.02em;
}
.doc-mock p { margin: 0 0 12px; }
.doc-mock .redact {
  display: inline-block;
  padding: 0 4px;
  border-radius: 3px;
  background: #111119;
  color: transparent;
  user-select: none;
  position: relative;
  cursor: help;
  transition: background var(--duration-short) var(--easing-enter), color var(--duration-short) var(--easing-enter);
}
.doc-mock .redact::after {
  content: attr(data-kind);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  transform: translateX(-50%);
  background: var(--color-text);
  color: var(--color-bg);
  font: var(--text-caption);
  font-family: var(--font-sans);
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-short) var(--easing-enter);
}
.doc-mock .redact:hover { background: #FAF813; color: #111119; }
.doc-mock .redact:hover::after { opacity: 1; }

.doc-mock-footer {
  border-top: 1px solid var(--color-border);
  padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between;
  font: var(--text-body-sm);
}
.doc-mock-footer .left {
  display: flex; align-items: center; gap: 10px;
  color: var(--color-success);
  font-weight: 500;
}
.doc-mock-footer .right {
  font-family: var(--font-mono);
  color: var(--color-text-3);
  font-size: 12px;
}

/* ─── Section base ─── */
section.block {
  padding: 88px 0;
  border-top: 1px solid var(--color-border-quiet);
}
section.block.alt { background: var(--color-surface); }
.section-head {
  max-width: 720px;
  margin: 0 0 48px;
}
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  margin: 8px 0 16px;
  text-wrap: balance;
}
.section-head p {
  font: var(--text-body-lg);
  color: var(--color-text-2);
  margin: 0;
  max-width: 60ch;
  text-wrap: pretty;
}

/* ─── How it works ─── */
.how-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.how-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex; flex-direction: column; gap: 16px;
  position: relative;
}
section.block.alt .how-card { background: var(--color-bg); }
.how-card .num {
  font: var(--text-overline);
  letter-spacing: 0.1em;
  color: var(--color-text-3);
  text-transform: uppercase;
}
.how-card h3 {
  font: var(--text-h3);
  font-size: 20px;
  margin: 0;
  letter-spacing: -0.01em;
}
.how-card p {
  font: var(--text-body);
  color: var(--color-text-2);
  margin: 0;
}
.how-card .visual {
  height: 132px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  position: relative;
  overflow: hidden;
}
section.block.alt .how-card .visual { background: var(--color-surface-2); }

/* Step visuals */
.viz-scan {
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--color-text-4);
  padding: 14px 16px;
  width: 100%; height: 100%;
  position: relative;
}
.viz-scan span.b { display: inline-block; height: 7px; background: currentColor; border-radius: 2px; vertical-align: middle; margin-right: 4px; opacity: 0.5; }
.viz-scan .scanline {
  position: absolute; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  top: 50%;
  animation: scan 2.4s var(--easing-move) infinite;
}
@keyframes scan {
  0% { top: 18%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { top: 82%; opacity: 0; }
}

.viz-redact {
  display: flex; gap: 6px; flex-wrap: wrap;
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  width: 100%;
}
.viz-redact span {
  height: 14px;
  border-radius: 3px;
}
.viz-redact .text { background: var(--color-text-4); width: 36px; opacity: 0.45;}
.viz-redact .text.long { width: 56px; }
.viz-redact .text.short { width: 20px; }
.viz-redact .pii { background: #111119; width: 48px; }

.viz-summary {
  width: 100%; padding: 14px 18px;
  display: flex; flex-direction: column; gap: 8px;
}
.viz-summary .row { display: flex; align-items: center; gap: 8px; }
.viz-summary .row .bar { height: 7px; border-radius: 3px; background: var(--color-text-4); opacity: 0.5;}
.viz-summary .row .bar.a { width: 60%; }
.viz-summary .row .bar.b { width: 80%; }
.viz-summary .row .bar.c { width: 45%; }
.viz-summary .row .pill {
  font: var(--text-overline);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: 4px;
}
.viz-summary .row .pill.review { background: var(--color-warning-bg); color: var(--color-warning); font-weight: 600; font-size: 9px;}
.viz-summary .row .pill.good { background: var(--color-success-bg); color: var(--color-success); font-weight: 600; font-size: 9px; border: 1px solid var(--color-success-line);}

/* ─── Why local-first (architecture diagram) ─── */
.arch {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: center;
}
.arch-list { display: flex; flex-direction: column; gap: 28px; }
.arch-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 16px;
  align-items: start;
}
.arch-item .ic {
  width: 32px; height: 32px;
  border-radius: var(--radius-md);
  background: var(--color-brand-blue-bg);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
}
.arch-item .ic svg { width: 16px; height: 16px; stroke-width: 1.8; }
.arch-item h4 {
  font: var(--text-h4);
  margin: 4px 0 4px;
  letter-spacing: -0.005em;
}
.arch-item p {
  font: var(--text-body);
  color: var(--color-text-2);
  margin: 0;
  max-width: 50ch;
}

.arch-diagram {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
}
section.block.alt .arch-diagram { background: var(--color-bg); }
.arch-diagram .device {
  border: 1.5px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: 20px 18px;
  position: relative;
}
.arch-diagram .device::before {
  content: 'YOUR COMPUTER';
  position: absolute;
  top: -8px; left: 16px;
  background: var(--color-bg);
  padding: 0 8px;
  font: var(--text-overline);
  letter-spacing: 0.1em;
  color: var(--color-text-3);
}
section.block.alt .arch-diagram .device::before { background: var(--color-bg); }
.arch-diagram .step-row {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border-quiet);
}
.arch-diagram .step-row:last-child { border-bottom: 0; }
.arch-diagram .step-row .icon-box {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
section.block.alt .arch-diagram .step-row .icon-box { background: var(--color-surface-2); }
.arch-diagram .step-row .icon-box svg { width: 16px; height: 16px; color: var(--color-text-2); stroke-width: 1.8; }
.arch-diagram .step-row .text { font: var(--text-body-sm); color: var(--color-text-2); }
.arch-diagram .step-row .text strong { color: var(--color-text); font-weight: 600; }

.arch-diagram .ai-row {
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  background: var(--color-brand-blue-bg);
  display: flex; align-items: center; gap: 12px;
  font: var(--text-body-sm);
  color: var(--color-primary);
}
.arch-diagram .ai-row svg { width: 16px; height: 16px; }
.arch-diagram .ai-row strong { font-weight: 600; }
.arch-diagram .conn {
  display: flex; align-items: center; justify-content: center;
  padding: 8px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-3);
  letter-spacing: 0.05em;
}
.arch-diagram .conn::before, .arch-diagram .conn::after {
  content: ''; flex: 1; height: 1px; background: var(--color-border); margin: 0 12px;
}

/* ─── Use cases ─── */
.uses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.use-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 22px;
  display: flex; flex-direction: column; gap: 8px;
  transition: border-color var(--duration-short) var(--easing-enter);
}
section.block.alt .use-card { background: var(--color-bg); }
.use-card:hover { border-color: var(--color-border-strong); }
.use-card .ic {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
  color: var(--color-text-2);
}
.use-card .ic svg { width: 22px; height: 22px; stroke-width: 1.5; }
.use-card h4 {
  font: var(--text-h4);
  margin: 0 0 4px;
  letter-spacing: -0.005em;
}
.use-card p {
  font: var(--text-body-sm);
  color: var(--color-text-3);
  margin: 0;
  line-height: 1.55;
}

/* ─── FAQ ─── */
.faq-list { border-top: 1px solid var(--color-border); }
.faq-item {
  border-bottom: 1px solid var(--color-border);
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 24px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  font: var(--text-h4);
  font-size: 18px;
  color: var(--color-text);
  letter-spacing: -0.005em;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .plus {
  flex-shrink: 0;
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  color: var(--color-text-3);
  transition: transform var(--duration-short) var(--easing-enter);
}
.faq-item[open] summary .plus { transform: rotate(45deg); color: var(--color-primary); }
.faq-item summary .plus svg { width: 22px; height: 22px; stroke-width: 1.5; }
.faq-item .answer {
  padding: 0 0 24px;
  font: var(--text-body);
  color: var(--color-text-2);
  max-width: 70ch;
}
.faq-item .answer p { margin: 0 0 12px; }
.faq-item .answer p:last-child { margin-bottom: 0; }

/* ─── Closing download ─── */
.closing {
  padding: 120px 0 100px;
  text-align: center;
  border-top: 1px solid var(--color-border-quiet);
  background: var(--color-surface);
}
.closing h2 {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(40px, 5.6vw, 72px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  text-wrap: balance;
}
.closing p {
  font: var(--text-body-lg);
  font-size: 19px;
  color: var(--color-text-2);
  margin: 0 auto 36px;
  max-width: 520px;
}
.closing .download-row {
  display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap;
}

/* ─── Footer ─── */
footer {
  background: var(--color-bg);
  padding: 56px 0 40px;
  border-top: 1px solid var(--color-border);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr repeat(3, max-content);
  align-items: start;
  gap: 80px;
}
.footer-copyright {
  font: var(--text-body-sm);
  color: var(--color-text-3);
}
.footer-col h5 {
  font: var(--text-overline);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-3);
  margin: 0 0 16px;
}
.footer-col ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.footer-col a {
  color: var(--color-text-2);
  font: var(--text-body-sm);
}
.footer-col a:hover { color: var(--color-text); }

/* ─── Legal pages (terms, privacy) ─── */
.legal-page {
  padding: 64px 0 96px;
  border-top: 1px solid var(--color-border-quiet);
}
.legal-doc {
  max-width: 720px;
  margin: 0 auto;
  color: var(--color-text-2);
  font: var(--text-body);
}
.legal-doc h1 {
  font: var(--text-display);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin: 0 0 12px;
}
.legal-doc .legal-meta {
  font: var(--text-body-sm);
  color: var(--color-text-3);
  margin: 0 0 36px;
}
.legal-doc h2 {
  font: var(--text-h2);
  color: var(--color-text);
  margin: 40px 0 14px;
  scroll-margin-top: 80px;
}
.legal-doc h3 {
  font: var(--text-h4);
  color: var(--color-text);
  margin: 28px 0 10px;
}
.legal-doc p {
  margin: 0 0 14px;
}
.legal-doc ul, .legal-doc ol {
  margin: 0 0 16px;
  padding-left: 24px;
}
.legal-doc li {
  margin-bottom: 6px;
}
.legal-doc a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.legal-doc a:hover { color: var(--color-brand-blue-2); }
.legal-doc strong { color: var(--color-text); font-weight: 600; }
.legal-doc hr {
  border: 0;
  border-top: 1px solid var(--color-border-quiet);
  margin: 32px 0;
}
.legal-doc code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  padding: 2px 6px;
  background: var(--color-surface-2);
  border-radius: var(--radius-sm);
}
.legal-doc blockquote {
  margin: 18px 0;
  padding: 16px 20px;
  border-left: 3px solid var(--color-warning);
  background: var(--color-warning-bg);
  color: var(--color-text);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.legal-doc blockquote p:last-child { margin-bottom: 0; }
.legal-doc table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0 22px;
  font: var(--text-body-sm);
}
.legal-doc th, .legal-doc td {
  text-align: left;
  vertical-align: top;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border-quiet);
}
.legal-doc th {
  font-weight: 600;
  color: var(--color-text);
  background: var(--color-surface-2);
}
.legal-doc address {
  font-style: normal;
  margin: 0 0 14px;
  white-space: pre-line;
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ─── Responsive ─── */
@media (max-width: 960px) {
  .hero-grid, .arch { grid-template-columns: 1fr; gap: 48px; }
  .how-grid, .uses-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { gap: 48px; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .container, .container-narrow, .nav-inner { padding: 0 20px; }
  .hero { padding: 56px 0 40px; }
  section.block { padding: 64px 0; }
  .how-grid, .uses-grid, .footer-grid { grid-template-columns: 1fr; }
  .closing { padding: 80px 0 64px; }
}