/* Tapetum website – colours from the logo: night blue, wireframe blue, amber eyes. */
:root {
  --bg: #05070d;
  --bg2: #0a1120;
  --bg3: #111c33;
  --border: #1c2a48;
  --text: #c3d0e6;
  --dim: #7d8fb0;
  --white: #f2f6ff;
  --blue: #3d8bff;
  --cyan: #6fd3ff;
  --amber: #ffc24d;
  --amber2: #ff9a1f;
  --r: 14px;
  --w: 1140px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0 }
html { scroll-behavior: smooth }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: var(--cyan) }
a:hover { color: var(--white) }
img { max-width: 100% }
code { background: var(--bg3); border: 1px solid var(--border); border-radius: 5px; padding: 0 .3rem; font-size: .88em; overflow-wrap: anywhere }
pre { background: var(--bg); border: 1px solid var(--border); border-radius: 8px; padding: .6rem .8rem; font-size: .85rem; overflow-x: auto; margin-top: .4rem }
.hidden { display: none !important }

/* ── Navigation ─────────────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5, 7, 13, .78);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(28, 42, 72, .7);
  padding: 0 2rem; height: 60px;
  display: flex; align-items: center; gap: 2rem;
}
.nav-logo { color: var(--white); font-weight: 700; font-size: 1.1rem; text-decoration: none; display: flex; align-items: center; gap: .55rem; letter-spacing: -.01em }
.nav-logo img { width: 30px; height: 30px; border-radius: 7px }
.nav-links { display: flex; gap: .2rem; flex: 1 }
.nav-links a { color: var(--dim); text-decoration: none; padding: .3rem .75rem; border-radius: 7px; font-size: .93rem }
.nav-links a:hover, .nav-links a.active { color: var(--white); background: var(--bg3) }
.lang { display: flex; gap: .2rem }
.lang-btn { background: none; border: 1px solid var(--border); color: var(--dim); border-radius: 6px; padding: .15rem .5rem; cursor: pointer; font-size: .8rem }
.lang-btn.active { color: var(--bg); background: var(--cyan); border-color: var(--cyan) }
.nav-cta { background: var(--amber); color: #1a1000 !important; font-weight: 650; text-decoration: none; padding: .38rem 1rem; border-radius: 9px; font-size: .9rem }
.nav-cta:hover { background: var(--white) }

/* ── Buttons ────────────────────────────────────────────────────────────── */
.buttons { display: flex; gap: .8rem; flex-wrap: wrap }
.btn-primary, .btn-secondary { display: inline-block; padding: .8rem 1.6rem; border-radius: 11px; text-decoration: none; font-weight: 650 }
.btn-primary { background: linear-gradient(180deg, var(--amber), var(--amber2)); color: #1a1000; box-shadow: 0 0 28px rgba(255, 194, 77, .35) }
.btn-primary:hover { color: #1a1000; filter: brightness(1.08) }
.btn-secondary { border: 1px solid rgba(111, 211, 255, .35); color: var(--white); background: rgba(10, 17, 32, .7); backdrop-filter: blur(6px) }
.btn-secondary:hover { border-color: var(--cyan); color: var(--white) }

/* ── Hero: the stage, edge to edge ──────────────────────────────────────── */
.hero { position: relative }
.hero-img { position: relative; width: 100%; aspect-ratio: 16 / 9; max-height: 88vh; background: url(hero.jpg) center 20% / cover no-repeat }
.hero-img::after { content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 7, 13, .6) 0%, rgba(5, 7, 13, 0) 14%, rgba(5, 7, 13, 0) 58%, rgba(5, 7, 13, .85) 82%, var(--bg) 100%),
    linear-gradient(90deg, var(--bg) 0%, rgba(5, 7, 13, 0) 12%, rgba(5, 7, 13, 0) 88%, var(--bg) 100%) }
.hero-inner { position: relative; width: 100%; max-width: var(--w); margin: clamp(-300px, -17vw, -70px) auto 0; padding: 0 2rem 3.5rem; text-align: center }
.hero-inner .logo { width: 84px; height: 84px; border-radius: 20px; box-shadow: 0 0 50px rgba(61, 139, 255, .45), 0 0 90px rgba(255, 194, 77, .15) }
.eyebrow { display: inline-block; color: var(--amber); font-size: .8rem; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; margin: 1rem 0 .4rem }
.hero h1 { color: var(--white); font-size: clamp(2.3rem, 6vw, 4.4rem); line-height: 1.05; letter-spacing: -.03em; text-shadow: 0 4px 40px rgba(0, 0, 0, .8) }
.hero h1 .grad { background: linear-gradient(90deg, var(--cyan), var(--blue) 55%, #9b7bff); -webkit-background-clip: text; background-clip: text; color: transparent }
.hero .lead { font-size: clamp(1.05rem, 2vw, 1.28rem); color: #d8e2f3; max-width: 760px; margin: 1.1rem auto 2rem; text-shadow: 0 2px 20px rgba(0, 0, 0, .9) }
.hero .buttons { justify-content: center }
.hero-meta { margin-top: 1.4rem; color: var(--dim); font-size: .85rem }

/* ── Sections ───────────────────────────────────────────────────────────── */
main { max-width: var(--w); margin: 0 auto; padding: 0 2rem }
section { padding: 5rem 0 }
section + section { border-top: 1px solid rgba(28, 42, 72, .6) }
.kicker { color: var(--cyan); font-size: .78rem; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; margin-bottom: .5rem }
.kicker.amber { color: var(--amber) }
h2 { color: var(--white); font-size: clamp(1.7rem, 3.4vw, 2.5rem); line-height: 1.15; letter-spacing: -.02em; margin-bottom: .8rem }
h3 { color: var(--white); font-size: 1.12rem; line-height: 1.3; margin-bottom: .45rem }
.sub { color: var(--dim); font-size: 1.08rem; max-width: 760px; margin-bottom: 2.4rem }
.center { text-align: center }
.center .sub { margin-left: auto; margin-right: auto }

/* Live workflow diagram */
.flow { display: grid; grid-template-columns: 1fr auto 1.15fr auto 1fr; align-items: center; gap: .8rem; margin: 1rem 0 1.5rem }
.node { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r); padding: 1.4rem 1.3rem; text-align: center; height: 100% }
.node .ic { font-size: 1.8rem; line-height: 1 }
.node h3 { margin: .6rem 0 .3rem }
.node p { font-size: .93rem; color: var(--dim) }
.node.it { border-top: 3px solid var(--amber) }
.node.bk { border-top: 3px solid var(--blue) }
.node.tp { background: radial-gradient(ellipse at 50% 0%, rgba(61, 139, 255, .22), transparent 70%), var(--bg2); border-color: rgba(61, 139, 255, .5); box-shadow: 0 0 60px rgba(61, 139, 255, .12) }
.node.tp img { width: 54px; height: 54px; border-radius: 13px }
.arrow { display: flex; flex-direction: column; align-items: center; gap: .2rem; color: var(--dim); font-size: .78rem; text-align: center; min-width: 92px }
.arrow .line { width: 92px; height: 2px; position: relative; background: linear-gradient(90deg, transparent, var(--amber)) }
.arrow .line::after { content: ""; position: absolute; right: -2px; top: -5px; border: 6px solid transparent; border-left: 9px solid var(--amber); border-right: 0 }
.arrow.both .line { background: linear-gradient(90deg, var(--blue), var(--blue)) }
.arrow.both .line::after { border-left-color: var(--blue) }
.arrow.both .line::before { content: ""; position: absolute; left: -2px; top: -5px; border: 6px solid transparent; border-right: 9px solid var(--blue); border-left: 0 }
.arrow b { color: var(--text); font-weight: 600 }
.flow-note { text-align: center; color: var(--dim); font-size: .95rem }
.flow-note strong { color: var(--amber) }

/* Benefit rows: picture and text side by side */
.row { display: grid; grid-template-columns: 1.1fr 1fr; gap: 3rem; align-items: center; margin-top: 4rem }
.row.flip > :first-child { order: 2 }
.row p { margin-bottom: .8rem }
.shot { border-radius: var(--r); overflow: hidden; border: 1px solid var(--border); box-shadow: 0 30px 70px rgba(0, 0, 0, .6), 0 0 70px rgba(61, 139, 255, .1) }
.shot img { display: block; width: 100% }
.caption { color: var(--dim); font-size: .8rem; margin-top: .6rem }
.checks { list-style: none; margin-top: 1rem }
.checks li { position: relative; padding-left: 1.7rem; margin-bottom: .45rem }
.checks li::before { content: "✓"; position: absolute; left: 0; color: var(--amber); font-weight: 700 }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(310px, 100%), 1fr)); gap: 1rem }
.card { background: linear-gradient(180deg, rgba(17, 28, 51, .55), rgba(10, 17, 32, .9)); border: 1px solid var(--border); border-radius: var(--r); padding: 1.5rem 1.5rem 1.3rem; min-width: 0; transition: border-color .2s, transform .2s }
.card:hover { border-color: rgba(61, 139, 255, .55); transform: translateY(-2px) }
.card .icon { width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.35rem; background: var(--bg3); border: 1px solid var(--border); margin-bottom: .9rem }
.card p { font-size: .96rem }
.chips { display: flex; flex-wrap: wrap; gap: .45rem; justify-content: center; margin-top: 2.2rem }
.chips span { border: 1px solid var(--border); background: var(--bg2); color: var(--dim); border-radius: 999px; padding: .2rem .8rem; font-size: .84rem }

/* Getting started teaser */
.teaser { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; counter-reset: t; margin-bottom: 2rem }
.teaser div { counter-increment: t; background: var(--bg2); border: 1px solid var(--border); border-radius: var(--r); padding: 1.2rem; font-size: .93rem }
.teaser div::before { content: counter(t); display: flex; width: 2rem; height: 2rem; border-radius: 50%; align-items: center; justify-content: center; border: 1px solid var(--blue); color: var(--cyan); font-weight: 700; margin-bottom: .6rem; font-size: .9rem }
.teaser strong { color: var(--white); display: block }

/* AI note */
.note { background: linear-gradient(90deg, rgba(255, 194, 77, .08), rgba(61, 139, 255, .06)); border: 1px solid var(--border); border-left: 3px solid var(--amber); border-radius: var(--r); padding: 1.4rem 1.6rem; margin: 1rem 0 }
.note p + p { margin-top: .7rem }

/* Downloads */
.dl { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 1rem }
.dl .card:hover { transform: none }
.dl .card h3 { display: flex; align-items: center; gap: .5rem; font-size: 1.2rem; margin-bottom: .7rem }
.dl-row { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem; padding: .45rem 0; border-top: 1px solid var(--border); font-size: .93rem }
.dl-row:first-of-type { border-top: 0 }
.dl-row > span:last-child { display: flex; flex-wrap: wrap; gap: .3rem }
.dl-btn { background: var(--bg3); border: 1px solid var(--border); color: var(--white); text-decoration: none; padding: .22rem .7rem; border-radius: 7px; font-size: .86rem; white-space: nowrap }
.dl-btn:hover { border-color: var(--amber); color: var(--amber) }
.dl .card.recommended { border-color: var(--amber); box-shadow: 0 0 34px rgba(255, 194, 77, .14) }
.dl .card.recommended h3::after { content: attr(data-badge); font-size: .7rem; font-weight: 650; color: #1a1000; background: var(--amber); border-radius: 999px; padding: .05rem .55rem; margin-left: auto; letter-spacing: .03em }
.dl-more { font-size: .87rem; color: var(--dim); margin: 1rem 0 1.6rem }
.warn-box { border: 1px solid rgba(255, 194, 77, .35); background: rgba(255, 194, 77, .05); border-radius: var(--r); padding: 1.2rem 1.4rem }
.warn-box h4 { display: flex; align-items: center; gap: .5rem; color: var(--amber); font-size: .98rem; margin-bottom: .8rem }
.warn-tabs { display: flex; gap: .3rem; flex-wrap: wrap; margin-bottom: .8rem }
.warn-tab { background: none; border: 1px solid var(--border); color: var(--dim); border-radius: 7px; padding: .22rem .8rem; cursor: pointer; font-size: .85rem; font-family: inherit }
.warn-tab.active { color: #1a1000; background: var(--amber); border-color: var(--amber) }
.warn-body { font-size: .93rem }
.disclaimer { color: var(--dim); font-size: .84rem; margin-top: 1.2rem; text-align: center }

/* Step-by-step guide (start.html) */
.page-hero { text-align: center; padding: 4.5rem 0 1rem }
.page-hero h1 { color: var(--white); font-size: clamp(2.1rem, 5vw, 3.2rem); letter-spacing: -.02em; line-height: 1.1 }
.page-hero .sub { margin: 1rem auto 0 }
.toc { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin: 2rem 0 1rem }
.toc a { border: 1px solid var(--border); background: var(--bg2); color: var(--text); text-decoration: none; border-radius: 999px; padding: .3rem .9rem; font-size: .88rem }
.toc a:hover { border-color: var(--cyan); color: var(--white) }
.guide { display: grid; gap: 1.2rem; margin: 2rem 0 }
.phase { background: var(--bg2); border: 1px solid var(--border); border-left: 3px solid var(--blue); border-radius: var(--r); padding: 1.6rem 1.7rem .6rem; scroll-margin-top: 80px }
.phase.amber { border-left-color: var(--amber) }
.phase h2 { font-size: 1.45rem; margin-bottom: 1.1rem; display: flex; align-items: center; gap: .7rem; flex-wrap: wrap }
.phase .tag { font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--cyan); background: var(--bg3); border: 1px solid var(--border); border-radius: 999px; padding: .1rem .65rem; font-weight: 650 }
.phase.amber .tag { color: var(--amber) }
.phase .shot { margin: 0 0 1.4rem }
.steps { counter-reset: step; list-style: none }
.steps li { counter-increment: step; position: relative; padding: 0 0 1.1rem 3rem }
.steps li::before { content: counter(step); position: absolute; left: 0; top: 0; width: 2rem; height: 2rem; border-radius: 50%; background: var(--bg3); border: 1px solid var(--blue); color: var(--cyan); font-weight: 700; display: flex; align-items: center; justify-content: center; font-size: .9rem }
.phase.amber .steps li::before { border-color: var(--amber); color: var(--amber) }

/* Text pages (about, legal notice) */
.page { max-width: 780px; margin: 0 auto; padding: 4rem 2rem 3rem }
.page h1 { color: var(--white); font-size: 2.4rem; margin-bottom: .3rem; letter-spacing: -.02em }
.page h2 { font-size: 1.35rem; margin: 2.2rem 0 .5rem }
.page p { margin-bottom: .8rem }

footer { border-top: 1px solid var(--border); margin-top: 2rem; padding: 2.4rem 2rem; text-align: center; color: var(--dim); font-size: .88rem }
footer a { color: var(--dim); margin: 0 .5rem }
footer a:hover { color: var(--white) }

@media (max-width: 900px) {
  .flow { grid-template-columns: 1fr; gap: .4rem }
  .arrow { flex-direction: row; justify-content: center; min-width: 0; padding: .3rem 0 }
  .arrow .line { width: 2px; height: 34px; background: linear-gradient(180deg, transparent, var(--amber)) }
  .arrow .line::after { right: -5px; top: auto; bottom: -4px; border: 6px solid transparent; border-top: 9px solid var(--amber); border-bottom: 0 }
  .arrow.both .line { background: var(--blue) }
  .arrow.both .line::after { border-left-color: transparent; border-top-color: var(--blue) }
  .arrow.both .line::before { left: -5px; top: -4px; border: 6px solid transparent; border-bottom: 9px solid var(--blue); border-top: 0 }
  .row, .row.flip { grid-template-columns: 1fr; gap: 1.6rem; margin-top: 3rem }
  .row.flip > :first-child { order: 0 }
  .teaser { grid-template-columns: 1fr 1fr }
}
@media (max-width: 760px) {
  nav { padding: 0 1rem; gap: 1rem }
  .nav-links { display: none }
  .nav-cta { display: none }
  .lang { margin-left: auto }
  main { padding: 0 1.1rem }
  section { padding: 3.6rem 0 }
  .hero-img { aspect-ratio: 4 / 3; background-position: center 30% }
  .hero-inner { padding: 0 1.1rem 2.5rem; margin-top: -60px }
  .teaser { grid-template-columns: 1fr }
  .phase { padding: 1.3rem 1.1rem .4rem }
  .page { padding: 3rem 1.1rem 2rem }
}