/* Blockchain Technical — base stylesheet */

:root {
  --bg:            #0a0d18;
  --bg-alt:        #0e1220;
  --surface:       #131828;
  --surface-2:     #181e31;
  --line:          #252d45;
  --line-soft:     #1b2236;
  --text:          #eef0f6;
  --text-muted:    #9aa1b8;
  --text-dim:      #666e88;
  --accent:        #f0b23e;
  --accent-strong: #ffc65c;
  --accent-soft:   rgba(240, 178, 62, .12);
  --sky:           #6f9bff;
  --radius:        14px;
  --radius-sm:     10px;
  --maxw:          1160px;
  --font: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { max-width: 100%; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-strong); }

h1, h2, h3, h4 {
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 .6em;
  font-weight: 600;
}
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.14rem; }
p  { margin: 0 0 1rem; color: var(--text-muted); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

.eyebrow {
  font-family: var(--mono);
  font-size: .74rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1rem;
}

.lead { font-size: 1.09rem; color: var(--text-muted); max-width: 62ch; }

section { padding: 88px 0; }
section.tight { padding: 60px 0; }
.section-head { max-width: 66ch; margin-bottom: 48px; }

/* ---------- header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(10, 13, 24, .8);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, background .2s;
}
.site-header.is-scrolled { border-bottom-color: var(--line-soft); }
.nav {
  display: flex; align-items: center; gap: 32px;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 600; letter-spacing: -.02em; }
.brand:hover { color: var(--text); }
.brand-mark { width: 26px; height: 26px; flex: none; }
.brand-name { font-size: 1.02rem; }
.brand-name span { color: var(--text-dim); font-weight: 400; }

.nav-links { display: flex; gap: 28px; margin-left: auto; }
.nav-links a {
  color: var(--text-muted); font-size: .93rem; font-weight: 500;
  padding: 4px 0; border-bottom: 1px solid transparent;
}
.nav-links a:hover { color: var(--text); }
.nav-links a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); }

.nav-cta { margin-left: 8px; }
.nav-toggle {
  display: none; margin-left: auto; background: none; border: 1px solid var(--line);
  color: var(--text); border-radius: 8px; width: 38px; height: 34px; cursor: pointer;
  align-items: center; justify-content: center;
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px; border-radius: 10px;
  font-size: .93rem; font-weight: 600; letter-spacing: -.01em;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s, background .18s, border-color .18s, color .18s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #2a1c00; }
.btn-primary:hover { background: #ffc65c; color: #2a1c00; }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: #36405e; color: var(--text); background: var(--surface); }
.btn-sm { padding: 8px 15px; font-size: .87rem; }

/* ---------- hero ---------- */

.hero { position: relative; padding: 116px 0 96px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -30% -10% auto -10%; height: 720px;
  background:
    radial-gradient(46% 52% at 22% 30%, rgba(240,178,62,.15), transparent 70%),
    radial-gradient(40% 46% at 78% 18%, rgba(111,155,255,.13), transparent 72%);
  pointer-events: none;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px),
                    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 0%, #000 20%, transparent 78%);
  opacity: .55; pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 24ch; }
.hero .lead { font-size: 1.16rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hero-meta {
  display: flex; flex-wrap: wrap; gap: 10px 28px; margin-top: 44px;
  font-family: var(--mono); font-size: .78rem; color: var(--text-dim);
  letter-spacing: .04em; text-transform: uppercase;
}
.hero-meta span { display: inline-flex; align-items: center; gap: 8px; }
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); flex: none; }

/* ---------- generic page hero ---------- */

.page-hero { padding: 84px 0 56px; border-bottom: 1px solid var(--line-soft); position: relative; }
.page-hero::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 340px;
  background: radial-gradient(50% 60% at 20% 0%, rgba(240,178,62,.10), transparent 70%);
  pointer-events: none;
}
.page-hero .wrap { position: relative; }

/* ---------- grids & cards ---------- */

.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .18s, background .18s, transform .18s;
}
.card:hover { border-color: var(--line); background: var(--surface-2); }
.card h3 { margin-bottom: .45em; }
.card p:last-child { margin-bottom: 0; }
.card-icon {
  width: 38px; height: 38px; border-radius: 10px;
  background: var(--accent-soft); color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.card-icon svg { width: 19px; height: 19px; }

.card-num {
  font-family: var(--mono); font-size: .76rem; color: var(--accent);
  letter-spacing: .1em; margin-bottom: 14px;
}

/* stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line-soft);
  border: 1px solid var(--line-soft); border-radius: var(--radius); overflow: hidden; }
.stat { background: var(--bg-alt); padding: 26px; }
.stat b { display: block; font-size: 1.85rem; font-weight: 600; letter-spacing: -.03em; }
.stat span { font-size: .86rem; color: var(--text-dim); }

/* list */
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { position: relative; padding-left: 26px; margin-bottom: 10px; color: var(--text-muted); font-size: .95rem; }
.ticks li::before {
  content: ""; position: absolute; left: 4px; top: .62em;
  width: 7px; height: 7px; border-radius: 2px; background: var(--accent); opacity: .8;
}

/* tags */
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.tag {
  font-family: var(--mono); font-size: .76rem; color: var(--text-muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 4px 11px;
  background: var(--bg-alt);
}

/* ---------- split ---------- */

.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: start; }

/* ---------- process ---------- */

.steps { counter-reset: s; display: grid; gap: 0; border-top: 1px solid var(--line-soft); }
.step {
  display: grid; grid-template-columns: 74px 1fr 1fr; gap: 28px;
  padding: 26px 0; border-bottom: 1px solid var(--line-soft);
  align-items: baseline;
}
.step-idx { font-family: var(--mono); font-size: .8rem; color: var(--accent); letter-spacing: .1em; }
.step h3 { margin: 0; }
.step p { margin: 0; font-size: .95rem; }

/* ---------- code panel ---------- */

.panel {
  background: var(--bg-alt); border: 1px solid var(--line-soft);
  border-radius: var(--radius); overflow: hidden;
}
.panel-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-bottom: 1px solid var(--line-soft);
  font-family: var(--mono); font-size: .76rem; color: var(--text-dim);
}
.panel-bar i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); display: block; }
.panel pre {
  margin: 0; padding: 18px 16px; overflow-x: auto;
  font-family: var(--mono); font-size: .8rem; line-height: 1.75; color: var(--text-muted);
}
.panel pre .k { color: var(--sky); }
.panel pre .s { color: var(--accent); }
.panel pre .c { color: var(--text-dim); }

/* ---------- work / case cards ---------- */

.case {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  padding: 34px; border: 1px solid var(--line-soft); border-radius: var(--radius);
  background: var(--surface); align-items: start;
}
.case:hover { border-color: var(--line); }
.case-kicker { font-family: var(--mono); font-size: .76rem; color: var(--accent); letter-spacing: .1em; text-transform: uppercase; }
.case h3 { font-size: 1.35rem; margin: 12px 0 14px; letter-spacing: -.02em; }
.case-metrics { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 22px; }
.case-metrics b { display: block; font-size: 1.3rem; letter-spacing: -.02em; }
.case-metrics span { font-size: .83rem; color: var(--text-dim); }

/* ---------- quote ---------- */

.quote {
  border-left: 2px solid var(--accent); padding: 4px 0 4px 24px;
  font-size: 1.1rem; color: var(--text); letter-spacing: -.01em;
}
.quote footer { margin-top: 14px; font-size: .88rem; color: var(--text-dim); }

/* ---------- cta band ---------- */

.cta-band {
  border: 1px solid var(--line-soft); border-radius: 18px;
  background:
    radial-gradient(60% 120% at 12% 0%, rgba(240,178,62,.13), transparent 70%),
    var(--surface);
  padding: 52px;
  display: flex; flex-wrap: wrap; gap: 28px; align-items: center; justify-content: space-between;
}
.cta-band h2 { margin: 0 0 .35em; }
.cta-band p { margin: 0; max-width: 52ch; }

/* ---------- forms ---------- */

.form { display: grid; gap: 16px; }
.field { display: grid; gap: 7px; }
.field label { font-size: .85rem; color: var(--text-muted); font-weight: 500; }
.field input, .field select, .field textarea {
  width: 100%; padding: 11px 13px; font: inherit; font-size: .95rem;
  color: var(--text); background: var(--bg-alt);
  border: 1px solid var(--line); border-radius: var(--radius-sm);
  outline: none; transition: border-color .15s, box-shadow .15s;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-note { font-size: .82rem; color: var(--text-dim); }

.info-row { display: flex; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line-soft); }
.info-row:last-child { border-bottom: 0; }
.info-row .k { font-size: .85rem; color: var(--text-dim); min-width: 118px; }
.info-row .v { font-size: .95rem; color: var(--text); }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--line-soft); background: var(--bg-alt); padding: 56px 0 32px; }
.footer-top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 36px; }
.footer-top h4 {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--text-dim); font-weight: 500; margin-bottom: 16px;
}
.footer-top ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.footer-top a { color: var(--text-muted); font-size: .92rem; }
.footer-top a:hover { color: var(--text); }
.footer-legal {
  margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--line-soft);
  display: flex; flex-wrap: wrap; gap: 12px 28px; justify-content: space-between;
  font-size: .82rem; color: var(--text-dim);
}
.footer-legal p { margin: 0; font-size: .82rem; color: var(--text-dim); }
.footer-about { font-size: .9rem; color: var(--text-muted); max-width: 40ch; }

/* ---------- reveal ---------- */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */

@media (max-width: 980px) {
  .g4 { grid-template-columns: repeat(2, 1fr); }
  .g3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .case { grid-template-columns: 1fr; gap: 24px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .step { grid-template-columns: 56px 1fr; }
  .step p { grid-column: 2; margin-top: 6px; }
}

@media (max-width: 720px) {
  section { padding: 64px 0; }
  .hero { padding: 76px 0 64px; }
  .nav-links {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; gap: 0; padding: 8px 24px 20px;
    background: var(--bg); border-bottom: 1px solid var(--line-soft);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; border-bottom: 1px solid var(--line-soft); }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .g2, .g3, .g4 { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .cta-band { padding: 32px; }
  .case { padding: 24px; }
  .footer-top { grid-template-columns: 1fr; }
  .case-metrics { grid-template-columns: 1fr 1fr; }
}

/* ---------- Blockchain Technical additions ---------- */

.svc { scroll-margin-top: 90px; }
.svc + .svc { border-top: 1px solid var(--line-soft); }

.regions { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 0; padding: 0; list-style: none; }
.regions li {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: .9rem; color: var(--text); background: var(--surface);
  border: 1px solid var(--line-soft); border-radius: 999px; padding: 7px 14px;
}

.code { font-family: var(--mono); font-size: .78rem; color: var(--accent); white-space: nowrap; }
.licence-list .info-row { align-items: baseline; }
.licence-list .info-row .k { min-width: 74px; }

@media (max-width: 720px) {
  .info-row { flex-direction: column; gap: 4px; }
}
.split > * { min-width: 0; }
.licence-list .info-row .k.code { color: var(--accent); }