/* Shared styles for andriichuk.com — home, extensions hub and legal pages. */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --ink: #0f1419;
  --ink-soft: #1d2630;
  --paper: #ffffff;
  --paper-soft: #f7f8fa;
  --line: #e6e8ec;
  --line-strong: #d4d8de;
  --muted: #5a6470;
  --muted-strong: #3d4651;
  --brand: #1B4F72;
  --brand-deep: #143a55;
  --brand-soft: #e8eef4;
  --ok: #1f7a4d;
  --ok-soft: #e6f4ec;
  --warn: #8a5a00;
  --warn-soft: #fbf1dc;
  --max-width: 1120px;
  --content-width: 720px;
  --radius: 10px;
  --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
::selection { background: var(--brand); color: var(--paper); }
a { color: var(--brand); }
a:hover { color: var(--brand-deep); }
img { max-width: 100%; height: auto; display: block; }

.wrap { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: var(--content-width); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.site-header .bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 600; letter-spacing: -0.01em; }
.logo-mark {
  width: 28px; height: 28px; border-radius: 7px; background: var(--brand); color: #fff;
  display: grid; place-items: center; font-family: var(--font-mono); font-size: 0.85rem; font-weight: 600;
}
.menu { display: flex; gap: 22px; align-items: center; }
.menu a { color: var(--muted-strong); text-decoration: none; font-size: 0.94rem; font-weight: 500; }
.menu a:hover, .menu a[aria-current="page"] { color: var(--brand); }
.menu .hide-sm { display: none; }
@media (min-width: 760px) { .menu .hide-sm { display: inline; } }

/* Type */
.eyebrow { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--brand); font-weight: 500; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.12; letter-spacing: -0.025em; font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); line-height: 1.2; letter-spacing: -0.02em; font-weight: 700; }
h3 { font-size: 1.12rem; line-height: 1.3; font-weight: 600; letter-spacing: -0.01em; }
.lead { font-size: 1.13rem; color: var(--muted-strong); max-width: 640px; }
.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); }

/* Sections */
section { padding: 72px 0; }
section + section { border-top: 1px solid var(--line); }
.section-head { margin-bottom: 32px; max-width: 680px; }
.section-head .eyebrow { display: block; margin-bottom: 10px; }
.section-head p { margin-top: 12px; color: var(--muted-strong); }
.soft { background: var(--paper-soft); }

.hero { padding: 88px 0 64px; }
.hero h1 { margin: 14px 0 18px; max-width: 820px; }
.facts { display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 28px; font-size: 0.92rem; color: var(--muted); }
.facts b { color: var(--ink); font-weight: 600; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 8px;
  background: var(--brand); color: #fff; text-decoration: none; font-weight: 600; font-size: 0.97rem;
  border: 1px solid var(--brand);
}
.btn:hover { background: var(--brand-deep); color: #fff; }
.btn.ghost { background: transparent; color: var(--brand); border-color: var(--line-strong); }
.btn.ghost:hover { border-color: var(--brand); color: var(--brand-deep); }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* Product cards */
.grid { display: grid; gap: 16px; }
@media (min-width: 700px) { .grid.two { grid-template-columns: 1fr 1fr; } }
@media (min-width: 980px) { .grid.three { grid-template-columns: repeat(3, 1fr); } }
.card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; background: var(--paper);
  display: flex; flex-direction: column; gap: 10px;
}
.card:hover { border-color: var(--line-strong); }
.card .top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.card p { color: var(--muted-strong); font-size: 0.97rem; }
.card .meta { font-size: 0.85rem; color: var(--muted); }
.card .links { margin-top: auto; padding-top: 6px; display: flex; flex-wrap: wrap; gap: 6px 16px; font-size: 0.93rem; }
.card .links a { text-decoration: none; font-weight: 500; }
.card .links a:hover { text-decoration: underline; }
.kind { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }

.badge {
  display: inline-block; white-space: nowrap; font-size: 0.74rem; font-weight: 600; padding: 3px 9px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand);
}
.badge.live { background: var(--ok-soft); color: var(--ok); }
.badge.soon { background: var(--warn-soft); color: var(--warn); }

.group-title { display: flex; align-items: baseline; gap: 12px; margin: 40px 0 16px; }
.group-title:first-of-type { margin-top: 0; }
.group-title span { color: var(--muted); font-size: 0.92rem; }

/* Principles / steps */
.principles { counter-reset: p; }
.principles .card h3::before { counter-increment: p; content: "0" counter(p); display: block; font-family: var(--font-mono); font-size: 0.8rem; color: var(--brand); margin-bottom: 8px; }

/* Definition list (corporate info) */
.facts-table { display: grid; gap: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.facts-table div { display: grid; grid-template-columns: 1fr; gap: 2px; padding: 14px 18px; border-top: 1px solid var(--line); }
.facts-table div:first-child { border-top: 0; }
.facts-table dt { font-size: 0.85rem; color: var(--muted); }
.facts-table dd { font-weight: 500; }
@media (min-width: 700px) { .facts-table div { grid-template-columns: 220px 1fr; gap: 16px; } }

/* Prose (legal pages) */
.prose { max-width: none; }
.prose h1 { font-size: clamp(1.8rem, 4vw, 2.4rem); margin: 10px 0 8px; }
.prose h2 { font-size: 1.25rem; margin: 34px 0 10px; }
.prose h3 { font-size: 1.05rem; margin: 22px 0 8px; }
.prose p, .prose li { color: var(--ink-soft); }
.prose p + p { margin-top: 12px; }
.prose ul, .prose ol { margin: 10px 0 10px 22px; }
.prose li + li { margin-top: 6px; }
.prose .updated { color: var(--muted); font-size: 0.92rem; }
.prose table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.94rem; }
.prose th, .prose td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.prose th { font-weight: 600; color: var(--muted-strong); background: var(--paper-soft); }
.table-scroll { overflow-x: auto; }
.note { border-left: 3px solid var(--brand); background: var(--brand-soft); padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 18px 0; }
.crumbs { font-size: 0.9rem; color: var(--muted); }
.crumbs a { color: var(--muted); }
.legal-page { padding: 48px 0 80px; }

/* Footer */
.site-footer { background: var(--ink); color: #b8c0ca; font-size: 0.92rem; padding: 44px 0 28px; }
.site-footer a { color: #e6eaee; text-decoration: none; }
.site-footer a:hover { color: #fff; text-decoration: underline; }
.foot-grid { display: grid; gap: 28px; }
@media (min-width: 760px) { .foot-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.foot-grid h4 { color: #fff; font-size: 0.95rem; margin-bottom: 10px; font-weight: 600; }
.foot-grid ul { list-style: none; }
.foot-grid li + li { margin-top: 6px; }
.foot-copy { margin-top: 32px; padding-top: 16px; border-top: 1px solid rgba(255, 255, 255, 0.12); font-size: 0.83rem; color: #8b94a0; }

/* Product pages (extensions) */
.product-hero { padding: 56px 0 56px; }
.product-hero .grid-hero { display: grid; gap: 36px; align-items: center; }
@media (min-width: 900px) { .product-hero .grid-hero { grid-template-columns: 1.05fr 1fr; } }
.product-hero h1 { margin: 12px 0 14px; font-size: clamp(2rem, 4.6vw, 2.9rem); }
.product-hero .shot { border-radius: 14px; border: 1px solid var(--line); box-shadow: 0 18px 50px rgba(15, 20, 25, 0.10); background: #fff; }
.product-icon { width: 56px; height: 56px; border-radius: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chip { font-size: 0.85rem; padding: 5px 11px; border-radius: 999px; background: var(--paper-soft); border: 1px solid var(--line); color: var(--muted-strong); }
.legal-links { margin-top: 18px; font-size: 0.9rem; color: var(--muted); }
.legal-links a { color: var(--muted-strong); }

.features .card h3 { font-size: 1.02rem; }
.features .card p { font-size: 0.95rem; }
.tag-new { display: inline-block; margin-left: 6px; font-size: 0.7rem; font-weight: 600; padding: 2px 7px; border-radius: 999px; background: var(--ok-soft); color: var(--ok); vertical-align: 2px; }

.audience { display: flex; flex-wrap: wrap; gap: 10px; }
.audience span { padding: 9px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; font-size: 0.95rem; }

.steps { counter-reset: step; display: grid; gap: 14px; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { list-style: none; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; background: #fff; }
.steps li::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 600; font-size: 0.9rem; margin-bottom: 10px; }

.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.faq details + details { margin-top: 10px; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 48px 16px 18px; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 13px; font-size: 1.3rem; color: var(--brand); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 18px 16px; color: var(--muted-strong); }

.extra { margin-top: 18px; color: var(--muted-strong); max-width: var(--content-width); }

/* Changelog — markup is edited by hand; keep these class names. */
.changelog-section { border-left: 2px solid var(--line-strong); padding: 2px 0 18px 20px; position: relative; }
.changelog-section::before { content: ""; position: absolute; left: -6px; top: 6px; width: 10px; height: 10px; border-radius: 50%; background: var(--brand); }
.changelog-section h3 { font-size: 1rem; margin-bottom: 8px; }
.changelog-section .date { font-weight: 400; color: var(--muted); font-size: 0.88rem; margin-left: 6px; }
.change-list { display: grid; gap: 6px; }
.change { font-size: 0.94rem; color: var(--ink-soft); display: grid; grid-template-columns: 64px 1fr; gap: 10px; align-items: baseline; }
.change .tag { font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; text-align: center; padding: 2px 0; border-radius: 4px; background: var(--brand-soft); color: var(--brand); }
.change.feat .tag { background: var(--ok-soft); color: var(--ok); }
.change.fix .tag { background: var(--warn-soft); color: var(--warn); }
.changelog-more { margin-top: 6px; }
.changelog-more > summary { cursor: pointer; color: var(--brand); font-weight: 600; margin: 4px 0 14px; }

/* Welcome pages */
.welcome-step { display: grid; gap: 18px; align-items: center; padding: 26px 0; }
.welcome-step + .welcome-step { border-top: 1px solid var(--line); }
@media (min-width: 860px) { .welcome-step { grid-template-columns: 1fr 1.2fr; } }
.welcome-step .num { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; background: var(--brand); color: #fff; font-weight: 700; margin-bottom: 10px; }
.welcome-step img { border-radius: 12px; border: 1px solid var(--line); }
.about-text .narrow, .about-text .lead { max-width: none; }
.faq.narrow, .changelog.narrow { max-width: none; }