:root {
  --ink: #16181b;
  --ink-2: #464b52;
  --muted: #6d737b;
  --line: #e3e0da;
  --bg: #faf8f4;
  --card: #ffffff;
  --accent: #f26b1d;
  --accent-ink: #ffffff;
  --accent-soft: #fdeadf;
  --dark: #16181b;
  --dark-ink: #f4f1ec;
  --ok: #1f8a4c;
  --err: #c0362c;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.06);
  --display: "Archivo", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f1eee9; --ink-2: #c9c5bf; --muted: #9a968f; --line: #2c2f34;
    --bg: #111315; --card: #1a1d20; --accent-soft: #3a2415; --dark: #0b0c0d;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.3);
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 var(--body); }
a { color: inherit; }
img { max-width: 100%; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font: 800 19px/1 var(--display); letter-spacing: -.02em; text-decoration: none; }
.brand .mark { width: 32px; height: 32px; border-radius: 9px; background: var(--accent); color: #fff; display: grid; place-items: center; font-size: 15px; }
.top nav { margin-left: auto; display: flex; gap: 22px; align-items: center; font-size: 15px; }
.top nav a { text-decoration: none; color: var(--ink-2); }
.top nav a:hover { color: var(--ink); }
@media (max-width: 720px) { .top nav a.hide-sm { display: none; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 0; cursor: pointer; text-decoration: none;
  font: 600 16px/1 var(--body); padding: 15px 22px; border-radius: 11px; background: var(--accent); color: var(--accent-ink); transition: transform .08s, filter .15s; }
.btn:hover { filter: brightness(1.06); }
.btn:active { transform: translateY(1px); }
.btn.sm { padding: 10px 16px; font-size: 15px; }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--line); }
.btn.ghost:hover { box-shadow: inset 0 0 0 1.5px var(--ink-2); }
.btn[disabled] { opacity: .55; cursor: default; }

/* hero */
.hero { padding: 72px 0 56px; }
.hero .grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.eyebrow { display: inline-block; font: 600 13px/1 var(--body); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-bottom: 18px; }
h1 { font: 800 clamp(40px, 6vw, 68px)/1.02 var(--display); letter-spacing: -.035em; margin: 0 0 20px; }
h1 em { font-style: normal; color: var(--accent); }
.lede { font-size: 19px; color: var(--ink-2); max-width: 36em; margin: 0 0 30px; }
.cta-row { display: flex; gap: 12px; flex-wrap: wrap; }
.trust { margin-top: 26px; display: flex; gap: 20px; flex-wrap: wrap; color: var(--muted); font-size: 14px; }
.trust span::before { content: "✓ "; color: var(--ok); font-weight: 700; }
@media (max-width: 880px) { .hero .grid { grid-template-columns: 1fr; } .hero { padding-top: 44px; } }

/* plan-to-bid illustration */
.demo { background: var(--card); border-radius: 20px; box-shadow: var(--shadow); padding: 22px; border: 1px solid var(--line); }
.demo .file { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 11px; background: var(--bg); font-size: 14px; }
.demo .file b { display: block; font-size: 15px; }
.demo .pdf { width: 38px; height: 46px; border-radius: 6px; background: var(--err); color: #fff; font: 700 11px/46px var(--body); text-align: center; flex: none; }
.demo .bar { height: 6px; border-radius: 6px; background: var(--line); margin: 16px 0 18px; overflow: hidden; }
.demo .bar i { display: block; height: 100%; width: 100%; background: var(--accent); animation: fill 2.8s ease-in-out infinite; transform-origin: left; }
@keyframes fill { 0% { transform: scaleX(.05); } 70%, 100% { transform: scaleX(1); } }
@media (prefers-reduced-motion: reduce) { .demo .bar i { animation: none; } }
.demo table { width: 100%; border-collapse: collapse; font-size: 14px; }
.demo td { padding: 9px 0; border-bottom: 1px solid var(--line); }
.demo td:last-child { text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
.demo tr:last-child td { border: 0; }
.demo .label { font: 600 12px/1 var(--body); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }

/* sections */
section { padding: 64px 0; }
section.alt { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
h2 { font: 800 clamp(30px, 4vw, 42px)/1.08 var(--display); letter-spacing: -.03em; margin: 0 0 14px; }
.sub { color: var(--ink-2); font-size: 18px; max-width: 40em; margin: 0 0 36px; }
.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
section.alt .card { background: var(--bg); }
.card h3 { font: 700 21px/1.2 var(--display); letter-spacing: -.01em; margin: 0 0 10px; }
.card p { margin: 0 0 12px; color: var(--ink-2); }
.card ul { margin: 0; padding-left: 20px; color: var(--ink-2); }
.card li { margin: 5px 0; }
.who .tag { display: inline-block; font: 600 12px/1 var(--body); letter-spacing: .06em; text-transform: uppercase; padding: 7px 10px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); margin-bottom: 14px; }
.who .price { font: 800 34px/1 var(--display); margin: 18px 0 4px; }
.who .price small { font: 500 15px var(--body); color: var(--muted); }
.steps4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) { .steps4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps4 { grid-template-columns: 1fr; } }
.step .n { width: 38px; height: 38px; border-radius: 50%; background: var(--dark); color: var(--dark-ink); display: grid; place-items: center; font: 700 16px var(--display); margin-bottom: 14px; }
@media (prefers-color-scheme: dark) { .step .n { background: var(--accent); color: #fff; } }

/* pricing table */
.ptable { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.ptable th, .ptable td { text-align: left; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.ptable th { font: 600 13px var(--body); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); background: var(--bg); }
.ptable td:last-child, .ptable th:last-child { text-align: right; }
.ptable td:last-child { font: 700 18px var(--display); font-variant-numeric: tabular-nums; }
.ptable tr.hl td { background: var(--accent-soft); }
.ptable tr:last-child td { border-bottom: 0; }
.note { color: var(--muted); font-size: 14px; margin-top: 12px; }

.trades { display: flex; flex-wrap: wrap; gap: 10px; }
.trades span { padding: 9px 14px; border-radius: 99px; border: 1px solid var(--line); background: var(--card); font-size: 15px; }

details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 17px; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
summary::after { content: "+"; color: var(--accent); font-size: 22px; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--ink-2); margin: 10px 0 0; }

.band { background: var(--dark); color: var(--dark-ink); border-radius: 22px; padding: 48px; display: flex; gap: 24px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
.band h2 { margin: 0; color: var(--dark-ink); }
.band p { margin: 8px 0 0; color: #b9b4ac; }

footer { padding: 36px 0 48px; color: var(--muted); font-size: 14px; }
footer .wrap { display: flex; gap: 16px; justify-content: space-between; flex-wrap: wrap; }

/* ---------- app (start.html) ---------- */
.app { padding: 40px 0 72px; }
.app-grid { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 28px; align-items: start; }
@media (max-width: 900px) { .app-grid { grid-template-columns: 1fr; } }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 28px; box-shadow: var(--shadow); }
.panel h2 { font-size: 28px; }
.tabs { display: flex; gap: 6px; background: var(--bg); padding: 5px; border-radius: 12px; margin-bottom: 22px; }
.tabs button { flex: 1; border: 0; background: transparent; padding: 11px; border-radius: 9px; font: 600 15px var(--body); color: var(--muted); cursor: pointer; }
.tabs button.on { background: var(--card); color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.08); }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: 14px; margin-bottom: 6px; }
.field .hint { font-weight: 400; color: var(--muted); }
input, select, textarea { width: 100%; font: 16px var(--body); color: var(--ink); background: var(--bg); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent); }
textarea { min-height: 86px; resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.row3 { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 12px; }
@media (max-width: 560px) { .row, .row3 { grid-template-columns: 1fr; } }
.choice { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 18px; }
@media (max-width: 560px) { .choice { grid-template-columns: 1fr; } }
.choice label { display: block; border: 1.5px solid var(--line); border-radius: 12px; padding: 16px; cursor: pointer; background: var(--bg); }
.choice input { display: none; }
.choice label:has(input:checked) { border-color: var(--accent); background: var(--accent-soft); }
.choice b { display: block; font-size: 16px; margin-bottom: 3px; }
.choice span { font-size: 14px; color: var(--ink-2); }
.hp { position: absolute; left: -9999px; }
.msg { padding: 12px 14px; border-radius: 10px; font-size: 15px; margin-bottom: 16px; display: none; }
.msg.err { display: block; background: color-mix(in srgb, var(--err) 12%, transparent); color: var(--err); }
.msg.ok { display: block; background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }

.drop { border: 2px dashed var(--line); border-radius: 14px; padding: 30px 18px; text-align: center; cursor: pointer; background: var(--bg); transition: border-color .15s, background .15s; }
.drop.over, .drop:hover { border-color: var(--accent); background: var(--accent-soft); }
.drop b { display: block; font-size: 17px; margin-bottom: 4px; }
.drop span { color: var(--muted); font-size: 14px; }
.files { list-style: none; padding: 0; margin: 12px 0 0; }
.files li { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; margin-top: 8px; font-size: 14px; }
.files .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.files .x { border: 0; background: none; color: var(--muted); cursor: pointer; font-size: 18px; }
.files .prog { grid-column: 1 / -1; height: 5px; background: var(--line); border-radius: 5px; overflow: hidden; }
.files .prog i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .2s; }
.files .meta { grid-column: 1 / -1; color: var(--muted); font-size: 13px; }

.summary { position: sticky; top: 84px; }
.summary .total { display: flex; justify-content: space-between; align-items: baseline; border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }
.summary .total b { font: 800 32px var(--display); }
.summary dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: 8px 12px; font-size: 14px; }
.summary dt { color: var(--muted); }
.summary dd { margin: 0; text-align: right; font-weight: 600; overflow-wrap: anywhere; }

.orders { margin-top: 28px; }
.order { display: grid; grid-template-columns: 1fr auto; gap: 4px 14px; padding: 16px 0; border-bottom: 1px solid var(--line); }
.order:last-child { border-bottom: 0; }
.order .st { font: 600 12px/1 var(--body); letter-spacing: .05em; text-transform: uppercase; padding: 6px 9px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); align-self: start; }
.order .st.ready { background: color-mix(in srgb, var(--ok) 14%, transparent); color: var(--ok); }
.order small { color: var(--muted); grid-column: 1 / -1; }
.whoami { font-size: 14px; color: var(--muted); display: flex; gap: 10px; align-items: center; }
.linkbtn { border: 0; background: none; color: var(--accent); font: 600 14px var(--body); cursor: pointer; padding: 0; }
.hidden { display: none !important; }