/* SynPDF landing page: "the page is a document". Cream page, a white sheet that gets signed. */
:root {
  --bg: #f4eee3;
  --bg2: #ffffff;
  --panel: rgba(255, 255, 255, 0.6);
  --line: rgba(28, 25, 23, 0.1);
  --grid: rgba(28, 25, 23, 0.06);
  --text: #1c1917;
  --muted: #57534e;
  --blue: #3b82f6;
  --cyan: #22d3ee;
  --glow: rgba(37, 99, 235, 0.35);
  --radius: 18px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: #1c1917; color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 200; }
.skip:focus { left: 16px; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.grad { background: linear-gradient(90deg, #2563eb, #0891b2); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Nav: dark glass */
.nav { position: sticky; top: 0; z-index: 100; background: rgba(244, 238, 227, 0.8); backdrop-filter: blur(16px) saturate(1.3); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 19px; letter-spacing: -0.3px; }
.brand img.logo { height: 40px; width: auto; }
.nav-links { display: flex; align-items: center; gap: 22px; }
.nav-links a.link { color: var(--muted); font-size: 14px; }
.nav-links a.link:hover { color: var(--text); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 20px; border-radius: 12px; font-weight: 700; font-size: 15px; transition: transform 0.12s, box-shadow 0.2s, background 0.2s, border-color 0.2s; }
.btn-primary { background: linear-gradient(135deg, #2563eb, #0ea5e9); color: #fff; box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12) inset, 0 8px 30px var(--glow); }
.btn-primary:hover { box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2) inset, 0 10px 44px rgba(56, 140, 255, 0.7); }
.btn-glass { background: rgba(255, 255, 255, 0.65); color: var(--text); border: 1px solid var(--line); backdrop-filter: blur(10px); }
.btn-glass:hover { border-color: rgba(37, 99, 235, 0.5); background: #fff; }
.btn-lg { padding: 16px 30px; font-size: 16px; border-radius: 14px; }
.btn:active { transform: translateY(1px); }

/* Hero artboard */
.hero { position: relative; overflow: hidden; padding: 72px 24px 96px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 40%, rgba(59, 130, 246, 0.12), transparent 70%),
    linear-gradient(var(--grid) 1px, transparent 1px) 0 0 / 40px 40px,
    linear-gradient(90deg, var(--grid) 1px, transparent 1px) 0 0 / 40px 40px,
    var(--bg); }
.hero-inner { position: relative; z-index: 3; max-width: 900px; margin: 0 auto; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; font-size: 12px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: #1d4ed8; background: rgba(37, 99, 235, 0.08); border: 1px solid rgba(37, 99, 235, 0.3); margin-bottom: 30px; }
.chip i { width: 7px; height: 7px; border-radius: 50%; background: #2563eb; box-shadow: 0 0 10px rgba(37, 99, 235, 0.6); }
.hero h1 { font-size: clamp(40px, 5.2vw, 76px); line-height: 1.02; letter-spacing: -2.5px; font-weight: 850; margin: 0 0 26px; }
.hero p.lede { font-size: 19px; color: var(--muted); max-width: 660px; margin: 0 auto 34px; }
.hero-buttons { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero-note { margin-top: 16px; font-size: 13px; color: var(--muted); }

/* Product window */
.window { position: relative; max-width: 1140px; margin: -10px auto 0; padding: 0 24px; z-index: 4; }
.window-frame { border-radius: 16px; overflow: hidden; border: 1px solid rgba(28, 25, 23, 0.12); background: #1e2230;
  box-shadow: 0 40px 100px rgba(28, 25, 23, 0.25), 0 0 80px rgba(37, 99, 235, 0.25); }
.window-bar { display: flex; gap: 7px; padding: 11px 14px; background: #2a2f3f; border-bottom: 1px solid var(--line); }
.window-bar span { width: 11px; height: 11px; border-radius: 50%; background: #3a4566; }

/* Sections */
section.block { padding: 120px 0; position: relative; }
section.block[data-tight] { padding-top: 0; }
.eyebrow { font-size: 12px; font-weight: 800; letter-spacing: 2.4px; text-transform: uppercase; color: #1d4ed8; margin-bottom: 14px; }
.head { text-align: center; max-width: 720px; margin: 0 auto 60px; }
.head h2 { text-wrap: balance; font-size: clamp(30px, 4.2vw, 50px); line-height: 1.08; letter-spacing: -1.2px; margin: 0 0 16px; font-weight: 800; }
.head p { color: var(--muted); margin: 0; font-size: 17px; }

/* Feature rows */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; backdrop-filter: blur(10px); box-shadow: 0 1px 2px rgba(28, 25, 23, 0.04), 0 10px 30px rgba(28, 25, 23, 0.05); }
.feature .stage { height: 150px; border-radius: 12px; margin-bottom: 20px; overflow: hidden;
  background: linear-gradient(rgba(120, 160, 255, 0.07) 1px, transparent 1px) 0 0 / 20px 20px, linear-gradient(90deg, rgba(120, 160, 255, 0.07) 1px, transparent 1px) 0 0 / 20px 20px, #0b1226;
  border: 1px solid var(--line); }
.feature .stage svg { width: 100%; height: 100%; }
.feature h3 { margin: 0 0 8px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 14.5px; }

/* Download panels */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 26px; display: flex; flex-direction: column; backdrop-filter: blur(12px); }
.plan.highlight { border: 2px solid #2563eb; box-shadow: 0 12px 40px rgba(37, 99, 235, 0.18); }
.plan .tag { position: absolute; top: -12px; left: 26px; background: linear-gradient(135deg, #2563eb, #0ea5e9); color: #fff; font-size: 12px; font-weight: 800; padding: 4px 12px; border-radius: 999px; }
.plan h3 { font-size: 22px; margin: 0 0 4px; }
.plan .meta { font-size: 13px; color: var(--muted); margin-bottom: 18px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; font-size: 14px; color: var(--muted); flex: 1; }
.plan li { display: flex; gap: 8px; padding: 4px 0; }
.check { color: #047857; font-weight: 800; }
.plan .btn { width: 100%; }
.steps { margin-top: 16px; font-size: 13px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 14px; }
.steps summary { cursor: pointer; font-weight: 700; color: var(--text); min-height: 24px; }
.steps ol { padding-left: 18px; margin: 10px 0 0; }

/* Privacy strip, CTA, footer */
.privacy { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.privacy div { border-top: 1px solid var(--line); padding-top: 18px; }
.privacy h3 { font-size: 15px; margin: 0 0 6px; }
.privacy p { margin: 0; font-size: 14px; color: var(--muted); }
.cta-box { text-align: center; border-radius: 28px; padding: 80px 24px; border: 1px solid rgba(37, 99, 235, 0.3);
  background: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.16), transparent 70%), #fbf8f3; }
.cta-box h2 { font-size: clamp(30px, 4vw, 46px); margin: 0 0 12px; letter-spacing: -1px; }
.cta-box p { color: var(--muted); margin: 0 0 32px; }
footer { border-top: 1px solid var(--line); padding: 34px 0; font-size: 14px; color: var(--muted); }
footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer nav { display: flex; gap: 20px; flex-wrap: wrap; }
footer nav a:hover { color: var(--text); }
.credit { width: 100%; font-size: 12px; margin: 0; }

@media (max-width: 960px) {
  .features, .plans, .privacy { grid-template-columns: 1fr 1fr; }
  .nav-links a.link { display: none; }
}
@media (max-width: 620px) {
  .features, .plans, .privacy { grid-template-columns: 1fr; }
  .hero { padding-top: 90px; min-height: 0; }
  .hero h1 { letter-spacing: -1.2px; }
}

/* Workspace tour: radio tabs, no scripts */
.tour > input { position: absolute; opacity: 0; pointer-events: none; }
.tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 22px; }
.tabs label { cursor: pointer; min-height: 44px; display: inline-flex; align-items: center; padding: 0 20px; border-radius: 999px; font-weight: 700; font-size: 15px; color: var(--muted); background: rgba(255, 255, 255, 0.6); border: 1px solid var(--line); transition: background 0.2s, color 0.2s, border-color 0.2s; }
.tabs label:hover { color: var(--text); border-color: rgba(37, 99, 235, 0.4); }
#ws-edit:checked ~ .tabs label[for=ws-edit], #ws-color:checked ~ .tabs label[for=ws-color], #ws-audio:checked ~ .tabs label[for=ws-audio],
#ws-captions:checked ~ .tabs label[for=ws-captions], #ws-effects:checked ~ .tabs label[for=ws-effects], #ws-export:checked ~ .tabs label[for=ws-export] {
  color: #fff; background: linear-gradient(135deg, #2563eb, #0ea5e9); border-color: transparent; box-shadow: 0 8px 24px var(--glow); }
#ws-edit:focus-visible ~ .tabs label[for=ws-edit], #ws-color:focus-visible ~ .tabs label[for=ws-color], #ws-audio:focus-visible ~ .tabs label[for=ws-audio],
#ws-captions:focus-visible ~ .tabs label[for=ws-captions], #ws-effects:focus-visible ~ .tabs label[for=ws-effects], #ws-export:focus-visible ~ .tabs label[for=ws-export] {
  outline: 3px solid var(--cyan); outline-offset: 3px; }
.tour .window-frame { max-width: 1150px; margin: 0 auto; }
.pane { display: none; margin: 0; }
#ws-edit:checked ~ .window-frame .p-edit, #ws-color:checked ~ .window-frame .p-color, #ws-audio:checked ~ .window-frame .p-audio,
#ws-captions:checked ~ .window-frame .p-captions, #ws-effects:checked ~ .window-frame .p-effects, #ws-export:checked ~ .window-frame .p-export { display: block; }
.pane figcaption { padding: 16px 22px; background: #fbf8f3; color: var(--muted); font-size: 15px; border-top: 1px solid var(--line); }
.pane figcaption strong { color: var(--text); }

/* FAQ */
.narrow { max-width: 820px; }
.faq details { border-top: 1px solid var(--line); padding: 4px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; min-height: 56px; display: flex; align-items: center; font-weight: 700; font-size: 17px; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; margin-left: auto; font-size: 22px; color: var(--blue); }
.faq details[open] summary::after { content: "–"; }
.faq p { margin: 0 0 18px; color: var(--muted); }


/* Hero: copy on the left, the document on the right */
.hero-grid { position: relative; z-index: 3; max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.05fr 1fr; gap: 56px; align-items: center; }
.hero-copy { text-align: left; }
.hero-copy .lede { margin: 0 0 32px; max-width: 560px; }
.hero-copy .hero-buttons { justify-content: flex-start; }
.doc-stage { position: relative; height: 560px; perspective: 1600px; }
.doc { position: absolute; left: 50%; top: 50%; width: 400px; height: 520px; margin: -260px 0 0 -200px; padding: 34px 34px 28px; background: #fff; border-radius: 10px;
  border: 1px solid rgba(28, 25, 23, 0.08); box-shadow: 0 2px 4px rgba(28, 25, 23, 0.06), 0 30px 80px rgba(28, 25, 23, 0.18), 0 0 70px rgba(37, 99, 235, 0.14); transform: rotate(-3deg); }
.doc-back { transform: rotate(4deg) translate(26px, 12px); background: #fbfaf7; box-shadow: 0 20px 60px rgba(28, 25, 23, 0.12); }
.doc-head { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 14px; margin-bottom: 18px; border-bottom: 2px solid #1c1917; }
.doc-head b { font-size: 20px; letter-spacing: -0.3px; }
.doc-head span { font-size: 11px; color: var(--muted); }
.ln { position: relative; height: 9px; margin: 0 0 13px; border-radius: 4px; background: #e7e2d8; }
.w95 { width: 95%; } .w90 { width: 90%; } .w85 { width: 85%; } .w80 { width: 80%; } .w75 { width: 75%; } .w70 { width: 70%; } .w60 { width: 60%; } .w50 { width: 50%; }
.hl { position: absolute; left: -4px; top: -5px; bottom: -5px; width: 0; border-radius: 3px; background: rgba(250, 204, 21, 0.55); mix-blend-mode: multiply; }
.party { margin: 20px 0 18px; font-size: 14px; color: #44403c; }
.name { position: relative; display: inline-block; font-weight: 700; color: #1c1917; }
.redact { position: absolute; left: -3px; right: -3px; top: -2px; bottom: -2px; background: #111; border-radius: 2px; transform-origin: left; transform: scaleX(0); }
.sign-row { position: absolute; left: 34px; right: 34px; bottom: 34px; }
.sig { display: block; width: 220px; height: 70px; }
.sig-line { display: block; width: 240px; padding-top: 6px; border-top: 1.5px solid #a8a29e; font-size: 11px; color: var(--muted); }
.note { position: absolute; right: -54px; top: 120px; width: 150px; padding: 12px 14px; background: #fde68a; border-radius: 4px 4px 4px 14px; font-size: 12px; line-height: 1.4; color: #422006;
  box-shadow: 0 12px 30px rgba(28, 25, 23, 0.2); transform: rotate(4deg) scale(0); transform-origin: 0 0; }
.note b { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
.stamp { position: absolute; right: 30px; bottom: 44px; padding: 6px 12px; border: 3px solid #16a34a; border-radius: 6px; color: #16a34a; font-weight: 900; letter-spacing: 2px; font-size: 15px; transform: rotate(-12deg) scale(0); opacity: 0.85; }

/* Tool grid with category tabs (radio inputs, no scripts) */
.toolbox > input, .tour > input { position: absolute; opacity: 0; pointer-events: none; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.tool { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 22px; transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s; }
.tool:hover { transform: translateY(-3px); border-color: rgba(37, 99, 235, 0.35); box-shadow: 0 14px 40px rgba(28, 25, 23, 0.1); }
.tool h3 { margin: 12px 0 6px; font-size: 17px; }
.tool p { margin: 0; color: var(--muted); font-size: 14.5px; }
.ico { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 11px; font-size: 19px; font-weight: 800; }
.ic-blue { background: #dbeafe; color: #1d4ed8; } .ic-pink { background: #fce7f3; color: #be185d; } .ic-amber { background: #fef3c7; color: #b45309; }
.ic-violet { background: #ede9fe; color: #6d28d9; } .ic-green { background: #dcfce7; color: #15803d; } .ic-teal { background: #ccfbf1; color: #0f766e; } .ic-red { background: #fee2e2; color: #b91c1c; }
#cat-edit:checked ~ .tool-grid .tool:not(.t-edit), #cat-organise:checked ~ .tool-grid .tool:not(.t-organise), #cat-convert:checked ~ .tool-grid .tool:not(.t-convert),
#cat-sign:checked ~ .tool-grid .tool:not(.t-sign), #cat-protect:checked ~ .tool-grid .tool:not(.t-protect) { display: none; }
#cat-all:checked ~ .tabs label[for=cat-all], #cat-edit:checked ~ .tabs label[for=cat-edit], #cat-organise:checked ~ .tabs label[for=cat-organise],
#cat-convert:checked ~ .tabs label[for=cat-convert], #cat-sign:checked ~ .tabs label[for=cat-sign], #cat-protect:checked ~ .tabs label[for=cat-protect] {
  color: #fff; background: linear-gradient(135deg, #2563eb, #0ea5e9); border-color: transparent; box-shadow: 0 8px 24px var(--glow); }
#cat-all:focus-visible ~ .tabs label[for=cat-all], #cat-edit:focus-visible ~ .tabs label[for=cat-edit], #cat-organise:focus-visible ~ .tabs label[for=cat-organise],
#cat-convert:focus-visible ~ .tabs label[for=cat-convert], #cat-sign:focus-visible ~ .tabs label[for=cat-sign], #cat-protect:focus-visible ~ .tabs label[for=cat-protect] { outline: 3px solid var(--cyan); outline-offset: 3px; }
.center-cta { text-align: center; margin-top: 36px; }

/* Tour tabs (same pattern as SynFrame) */
#ws-read:checked ~ .tabs label[for=ws-read], #ws-edit:checked ~ .tabs label[for=ws-edit], #ws-organise:checked ~ .tabs label[for=ws-organise],
#ws-comments:checked ~ .tabs label[for=ws-comments], #ws-forms:checked ~ .tabs label[for=ws-forms], #ws-protect:checked ~ .tabs label[for=ws-protect] {
  color: #fff; background: linear-gradient(135deg, #2563eb, #0ea5e9); border-color: transparent; box-shadow: 0 8px 24px var(--glow); }
#ws-read:focus-visible ~ .tabs label[for=ws-read], #ws-edit:focus-visible ~ .tabs label[for=ws-edit], #ws-organise:focus-visible ~ .tabs label[for=ws-organise],
#ws-comments:focus-visible ~ .tabs label[for=ws-comments], #ws-forms:focus-visible ~ .tabs label[for=ws-forms], #ws-protect:focus-visible ~ .tabs label[for=ws-protect] { outline: 3px solid var(--cyan); outline-offset: 3px; }
#ws-read:checked ~ .window-frame .p-read, #ws-edit:checked ~ .window-frame .p-edit, #ws-organise:checked ~ .window-frame .p-organise,
#ws-comments:checked ~ .window-frame .p-comments, #ws-forms:checked ~ .window-frame .p-forms, #ws-protect:checked ~ .window-frame .p-protect { display: block; }

/* Privacy band */
.privacy-band { border-radius: 28px; padding: 56px 48px; background: #1c1917; color: #f5f5f4; }
.privacy-band .head.left { text-align: left; margin: 0 0 36px; max-width: 760px; }
.privacy-band .head p, .privacy-band .privacy p { color: #d6d3d1; }
.privacy-band .eyebrow { color: #93c5fd; }
.privacy-band .privacy div { border-top-color: rgba(255, 255, 255, 0.14); }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; gap: 24px; }
  .hero-copy { text-align: center; }
  .hero-copy .lede { margin: 0 auto 30px; }
  .hero-copy .hero-buttons { justify-content: center; }
}
@media (max-width: 620px) {
  .doc-stage { height: 440px; }
  .doc { width: 300px; height: 400px; margin: -200px 0 0 -150px; padding: 24px 22px; }
  .doc-head b { font-size: 16px; }
  .note { right: -8px; top: 100px; width: 120px; }
  .sign-row { left: 22px; bottom: 24px; }
  .sig { width: 170px; height: 54px; } .sig-line { width: 180px; }
  .stamp { right: 18px; bottom: 34px; font-size: 12px; }
  .privacy-band { padding: 40px 22px; }
}
.ico svg { width: 21px; height: 21px; }