/* invamp.net — one stylesheet, no external resources. */
:root {
  --bg: #ffffff;
  --bg-soft: #f5f6f8;
  --bg-dark: #14161a;
  --fg: #1b1e23;
  --fg-soft: #5b626e;
  --line: #e1e4e9;
  --accent: #bf5e00;        /* the logo's orange */
  --accent-dark: #9a4b00;
  --accent-soft: #fff1e8;
  --radius: 14px;
  --max: 1120px;
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121418; --bg-soft: #1a1d22; --fg: #e8eaee; --fg-soft: #a2a9b4;
    --line: #2b3038; --accent-soft: #3a2416; --accent: #e57a1f; --accent-dark: #c96410; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 17px/1.6 var(--font); }
a { color: var(--accent); }
img, video { max-width: 100%; display: block; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 20px; }

/* header */
.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 90%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 20px; height: 76px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 26px; color: var(--fg);
  text-decoration: none; letter-spacing: -.01em; }
.brand img { height: 54px; width: auto; }
.brand span { color: var(--accent); }
.nav { display: flex; gap: 18px; margin-left: auto; align-items: center; }
.nav a { color: var(--fg); text-decoration: none; font-size: 15px; }
.nav a:hover { color: var(--accent); }
.lang { border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; font-size: 13px !important; }
.btn { display: inline-block; padding: 12px 22px; border-radius: 10px; font-weight: 600; text-decoration: none;
  background: var(--accent); color: #fff !important; border: 0; font: inherit; font-weight: 600; cursor: pointer; }
.btn:hover { background: var(--accent-dark); }
.btn.ghost { background: transparent; color: var(--fg) !important; border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--accent); }
.nav .btn { padding: 8px 16px; font-size: 15px; }

/* hero */
.hero { padding: 72px 0 40px; }
.hero .wrap { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; }
.eyebrow { color: var(--accent); font-weight: 700; font-size: 14px; letter-spacing: .08em; text-transform: uppercase; }
h1 { font-size: 48px; line-height: 1.08; margin: 10px 0 18px; letter-spacing: -.02em; }
.lead { font-size: 19px; color: var(--fg-soft); margin: 0 0 26px; }
.cta { display: flex; gap: 12px; flex-wrap: wrap; }
.req { margin-top: 20px; font-size: 14px; color: var(--fg-soft); }
.frame img { width: 100%; height: auto; }
.frame.shot { background: var(--bg-soft); padding: 18px; display: flex; justify-content: center; }
.frame.shot img { width: auto; max-width: 100%; max-height: 520px; border: 1px solid var(--line); }
.frame.hero-shot { background: #e2e5ea; }
.frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(20, 22, 26, .18); }

/* sections */
section { padding: 64px 0; }
section.soft { background: var(--bg-soft); }
h2 { font-size: 34px; line-height: 1.15; margin: 0 0 12px; letter-spacing: -.01em; }
.sub { color: var(--fg-soft); margin: 0 0 36px; max-width: 720px; }
.feature { display: grid; grid-template-columns: 1fr 1.3fr; gap: 40px; align-items: center; margin: 0 0 56px; }
.feature:nth-child(even) .text { order: 2; }
.feature h3 { font-size: 24px; margin: 0 0 8px; }
.feature p { color: var(--fg-soft); margin: 0 0 10px; }
.feature ul { margin: 0; padding-left: 20px; color: var(--fg-soft); }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.card b { display: block; margin-bottom: 4px; }
.card span { color: var(--fg-soft); font-size: 15px; }
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps .card::before { counter-increment: s; content: counter(s); display: inline-flex; width: 30px; height: 30px;
  border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; align-items: center;
  justify-content: center; margin-bottom: 10px; }
.licence { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: start; }
.licence ul { padding-left: 20px; }
.box { background: var(--accent-soft); border-radius: var(--radius); padding: 28px; }

/* form */
form { display: grid; gap: 14px; max-width: 640px; }
label { font-weight: 600; font-size: 15px; display: grid; gap: 6px; }
input, select, textarea { font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px;
  background: var(--bg); color: var(--fg); }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.hint { color: var(--fg-soft); font-size: 14px; font-weight: 400; }
.err { color: #c62828; font-size: 14px; font-weight: 400; }

/* footer */
footer { border-top: 1px solid var(--line); padding: 36px 0; color: var(--fg-soft); font-size: 14px; }
footer .wrap { display: flex; gap: 24px; flex-wrap: wrap; justify-content: space-between; }
footer a { color: var(--fg-soft); }
.legal { max-width: 760px; }
.prose { max-width: 760px; padding: 48px 0 64px; }
.prose h1 { font-size: 38px; }

@media (max-width: 900px) {
  .hero .wrap, .feature, .licence { grid-template-columns: 1fr; gap: 24px; }
  .feature:nth-child(even) .text { order: 0; }
  .grid, .steps { grid-template-columns: 1fr; }
  h1 { font-size: 36px; }
  h2 { font-size: 28px; }
  .nav a:not(.btn):not(.lang) { display: none; }
  .hero { padding-top: 40px; }
}