/* Ply3D website. Light, technical-drawing look: cool paper, ink, blueprint hairlines,
   filament orange for the one action that matters on each screen. */
:root {
  --paper: #F6F7F9;
  --sheet: #FFFFFF;
  --ink: #15181D;
  --graphite: #5A6170;
  --line: #DDE1E7;
  --filament: #FF5A1F;
  --filament-ink: #C23A08;
  --axis-x: #D93B3B;
  --axis-y: #2E9E57;
  --axis-z: #2F6BE0;
  --display: "Bricolage Grotesque", "Avenir Next", system-ui, sans-serif;
  --text: "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --measure: 34rem;
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--text);
}
img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 35%, transparent); text-underline-offset: 3px; }
a:hover { text-decoration-color: currentColor; }
:focus-visible { outline: 2px solid var(--axis-z); outline-offset: 3px; border-radius: 4px; }

.wrap { width: min(72rem, 100% - 2rem); margin-inline: auto; }

/* Header */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 1.5rem; min-height: 4rem; }
.brand { display: flex; align-items: center; gap: .55rem; text-decoration: none; font: 700 1.35rem/1 var(--display); letter-spacing: -.02em; }
.brand img { width: 1.9rem; height: 1.9rem; }
.top nav { display: flex; gap: 1.4rem; margin-left: auto; font-size: .95rem; }
.top nav a { text-decoration: none; color: var(--graphite); }
.top nav a:hover { color: var(--ink); }
.lang { font-size: .9rem; color: var(--graphite); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 2.9rem; padding: 0 1.3rem; border-radius: .6rem;
  font: 600 1rem/1 var(--text); text-decoration: none; border: 1px solid transparent; cursor: pointer; }
.btn-primary { background: var(--filament); color: #fff; }
.btn-primary:hover { background: var(--filament-ink); }
.btn-quiet { background: var(--sheet); border-color: var(--line); color: var(--ink); }
.btn-quiet:hover { border-color: var(--graphite); }
.btn[aria-disabled="true"] { background: var(--line); color: var(--graphite); pointer-events: none; }
.top .btn { min-height: 2.4rem; padding: 0 1rem; font-size: .92rem; }

/* Hero: the copy on the left, the part being printed on the right */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr); gap: 3rem; align-items: center; padding-block: 4.5rem 3.5rem; }
.hero h1 { font: 800 clamp(2.6rem, 6vw, 4.6rem)/.98 var(--display); letter-spacing: -.035em; margin: 0 0 1.4rem; }
.hero p.lede { font-size: 1.2rem; color: var(--graphite); max-width: var(--measure); margin: 0 0 2rem; }
.hero .actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 1rem; }
.hero .fine { font-size: .9rem; color: var(--graphite); margin: 0; }

.drawing { background: var(--sheet); border: 1px solid var(--line); border-radius: 1rem; padding: 1rem;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 24px 24px; background-position: -1px -1px; }
.drawing svg { width: 100%; height: auto; overflow: visible; }
.drawing .dim { font: 500 13px var(--text); fill: var(--ink); }
.drawing .dim-line { stroke: var(--graphite); stroke-width: 1; fill: none; }
.drawing .print { animation: print 2.6s steps(26, end) .3s both; }
@keyframes print { from { clip-path: inset(100% 0 0 0); } to { clip-path: inset(0 0 0 0); } }
.drawing .dims { animation: appear .5s ease 2.9s both; }
@keyframes appear { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .drawing .print, .drawing .dims { animation: none; } }

/* Sections */
section { padding-block: 4.5rem; }
section + section { border-top: 1px solid var(--line); }
h2 { font: 750 clamp(1.9rem, 3.6vw, 2.8rem)/1.05 var(--display); letter-spacing: -.03em; margin: 0 0 1rem; max-width: 22ch; }
.intro { color: var(--graphite); max-width: var(--measure); margin: 0 0 2.5rem; font-size: 1.1rem; }

.shot { margin: 0; }
.shot img { border-radius: .9rem; border: 1px solid var(--line); box-shadow: 0 30px 60px -30px rgba(21, 24, 29, .45); }
.shot figcaption { color: var(--graphite); font-size: .92rem; margin-top: .9rem; }

/* The workflow really is a sequence: numbered */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2.5rem; counter-reset: step; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 1.1rem; }
.steps li::before { content: counter(step); font: 700 2.4rem/1 var(--display); color: var(--filament); display: block; margin-bottom: .8rem; }
.steps h3, .features h3 { font: 650 1.2rem/1.25 var(--display); margin: 0 0 .5rem; letter-spacing: -.01em; }
.steps p, .features p { margin: 0; color: var(--graphite); }

.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2.2rem 3.5rem; }
.features div { display: grid; grid-template-columns: 2.25rem 1fr; gap: 0 .9rem; }
.features svg { width: 2.25rem; height: 2.25rem; color: var(--ink); grid-row: span 2; }

/* AI: a real exchange, shown as a transcript */
.ai .wrap { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 3.5rem; align-items: start; }
.chat { background: var(--sheet); border: 1px solid var(--line); border-radius: 1rem; padding: 1.4rem; display: grid; gap: .9rem; font-size: .98rem; }
.chat .you { justify-self: end; background: var(--ink); color: #fff; border-radius: 1rem 1rem .25rem 1rem; padding: .75rem 1rem; max-width: 30ch; }
.chat .agent { max-width: 46ch; }
.chat .tool { font-size: .88rem; color: var(--graphite); border-left: 2px solid var(--line); padding-left: .8rem; }
.chat .tool b { color: var(--ink); font-weight: 600; }

/* Pricing */
.plan { background: var(--sheet); border: 1px solid var(--line); border-radius: 1.1rem; padding: 2rem; max-width: 30rem; }
.billing { display: inline-flex; border: 1px solid var(--line); border-radius: .6rem; padding: .2rem; margin-bottom: 1.5rem; }
.billing button { font: 600 .92rem/1 var(--text); border: 0; background: none; padding: .55rem .9rem; border-radius: .45rem; cursor: pointer; color: var(--graphite); }
.billing button[aria-pressed="true"] { background: var(--ink); color: #fff; }
.price { font: 800 3.4rem/1 var(--display); letter-spacing: -.03em; }
.price small { font: 500 1rem var(--text); color: var(--graphite); letter-spacing: 0; }
.plan ul { padding-left: 1.2rem; margin: 1.4rem 0; color: var(--graphite); }
.plan li { margin: .3rem 0; }
.plan .actions { display: grid; gap: .6rem; }
.plan .note { font-size: .9rem; color: var(--graphite); margin: 1rem 0 0; }
.pricing-row { display: grid; grid-template-columns: minmax(0, 30rem) minmax(0, 1fr); gap: 3rem; align-items: start; }
.aside { color: var(--graphite); max-width: 28rem; }
.aside h3 { font: 650 1.2rem var(--display); color: var(--ink); margin: 0 0 .4rem; }
.aside p { margin: 0 0 1.6rem; }

/* FAQ */
.faq { max-width: 46rem; }
.faq details { border-bottom: 1px solid var(--line); padding: 1.1rem 0; }
.faq summary { cursor: pointer; font: 600 1.08rem/1.35 var(--text); list-style-position: outside; }
.faq details p { color: var(--graphite); margin: .7rem 0 0; }

/* Plain pages (legal, checkout) */
.page { padding-block: 3.5rem 5rem; }
.page .wrap { max-width: 46rem; }
.page h1 { font: 800 clamp(2.2rem, 5vw, 3.2rem)/1 var(--display); letter-spacing: -.03em; margin: 0 0 1.2rem; }
.page h2 { font-size: 1.5rem; margin-top: 2.4rem; }
.page p, .page li { color: #2f343c; }
.updated { color: var(--graphite); font-size: .92rem; }

footer { border-top: 1px solid var(--line); padding-block: 2.5rem; color: var(--graphite); font-size: .92rem; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem 1.8rem; align-items: center; }
footer .wrap > :first-child { margin-right: auto; }

@media (max-width: 860px) {
  .top nav { display: none; }
  .top .wrap { gap: .8rem; }
  .lang { margin-left: auto; }
  .top .btn { display: none; }
  .hero .wrap, .ai .wrap, .pricing-row { grid-template-columns: 1fr; gap: 2.2rem; }
  .hero .wrap { padding-block: 2.5rem; }
  .steps, .features { grid-template-columns: 1fr; gap: 2rem; }
  section { padding-block: 3.2rem; }
}