:root {
  --bg: #0a0c10;
  --bg-2: #0d1117;
  --panel: #12151c;
  --border: #27303c;
  --border-soft: rgba(39, 48, 60, 0.55);
  --text: #e2e4e9;
  --text-dim: #8b949e;
  --cyan: #00d4aa;
  --blue: #0099cc;
  --deep: #006688;
  --cyan-soft: rgba(0, 212, 170, 0.12);
  --blue-soft: rgba(0, 153, 204, 0.12);
  --radius: 6px;
  --sans: "DM Sans", "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.grid-bg,
.scanline,
.orb { position: fixed; inset: 0; pointer-events: none; }
.grid-bg {
  z-index: 0;
  background-image:
    linear-gradient(rgba(0, 212, 170, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 170, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
}
.scanline {
  z-index: 1;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.0),
    rgba(255, 255, 255, 0.0) 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  opacity: 0.45;
}
.orb {
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
}
.orb-1 { width: 540px; height: 540px; top: -160px; left: -120px; background: rgba(0, 212, 170, 0.12); }
.orb-2 { width: 480px; height: 480px; top: 420px; right: -140px; background: rgba(0, 153, 204, 0.10); }
.orb-3 { width: 420px; height: 420px; top: 1500px; left: 8%; background: rgba(0, 102, 136, 0.10); }

.container {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

/* ── Nav ──────────────────────────────────────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 12, 16, 0.88);
  border-bottom: 1px solid var(--border-soft);
  backdrop-filter: blur(10px);
}
.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  min-height: 64px;
}
.nav-logo img { height: 40px; width: auto; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}
.nav-links a {
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
}
.nav-links a:hover { color: var(--text); }
#lang-toggle {
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-dim);
  border-radius: 4px;
  padding: 6px 10px;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 12px;
}

/* M38-A: hamburger button */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  padding: 9px;
  flex-shrink: 0;
}
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--text-dim);
  border-radius: 1px;
  transition: transform .25s ease, opacity .25s ease;
  transform-origin: center;
}
nav.nav-open .nav-hamburger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
nav.nav-open .nav-hamburger span:nth-child(2) { opacity: 0; transform: scaleX(0); }
nav.nav-open .nav-hamburger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 4px;
  padding: 12px 18px;
  border: 1px solid var(--cyan);
  font-weight: 700;
  font-size: 13px;
  transition: transform .2s ease, opacity .2s ease, background .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-1px); opacity: 0.95; }
.btn-solid {
  background: var(--cyan);
  color: #061014;
}
.btn-ghost {
  background: transparent;
  color: var(--cyan);
}

/* ── Sections ─────────────────────────────────────────────────────────────── */
main section { padding: 110px 0; position: relative; z-index: 2; }
.section-alt { background: rgba(13, 17, 23, 0.76); border-top: 1px solid var(--border-soft); border-bottom: 1px solid var(--border-soft); }
.section-label,
.eyebrow {
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.section-head { margin-bottom: 48px; }
.section-head h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 14px 0 18px;
}
.section-sub {
  max-width: 720px;
  color: var(--text-dim);
  font-size: 17px;
}
.section-sub.center { margin: 0 auto; text-align: center; }

/* ── Hero ─────────────────────────────────────────────────────────────────── */
.hero { padding-top: 124px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(0, 212, 170, 0.2);
  background: rgba(0, 212, 170, 0.08);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 16px var(--cyan);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 32px;
  align-items: center;
}
.hero-copy h1 {
  font-size: clamp(42px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: -0.05em;
  margin: 16px 0 22px;
}
.hero-sub {
  color: var(--text-dim);
  font-size: 19px;
  max-width: 620px;
}
.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 28px;
}
.signal-card {
  background: linear-gradient(180deg, rgba(18, 21, 28, 0.96), rgba(13, 17, 23, 0.96));
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 22px;
}
.signal-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}
.signal-kicker,
.signal-status {
  font-size: 11px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.signal-kicker { color: var(--cyan); }
.signal-status { color: var(--text-dim); }
.signal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.metric-panel,
.terminal-card,
.problem-card,
.product-card,
.step,
.mini-card,
.security-card {
  background: linear-gradient(180deg, rgba(13, 17, 23, 0.98), rgba(18, 21, 28, 0.98));
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.metric-panel {
  padding: 18px;
  min-height: 148px;
}
.metric-panel.client { border-color: rgba(0, 153, 204, 0.45); }
.metric-label {
  display: block;
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.metric-panel strong {
  display: block;
  color: var(--cyan);
  font-size: 42px;
  line-height: 1;
  margin-bottom: 12px;
}
.metric-panel.client strong { color: #4da6ff; }
.metric-panel p { color: var(--text-dim); font-size: 14px; }
.terminal-card {
  grid-column: 1 / -1;
  padding: 18px;
  min-height: 176px;
}
.terminal-line {
  font-family: var(--mono);
  font-size: 13px;
  margin-bottom: 10px;
  min-height: 1.6em;
}
.terminal-line.dim { color: var(--text-dim); }
.terminal-line.accent { color: var(--cyan); }
.prompt { color: var(--cyan); }

/* M38-B: typewriter cursor */
.tw-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--cyan);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: tw-blink .8s step-end infinite;
}
@keyframes tw-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ── Problem ──────────────────────────────────────────────────────────────── */
.problem-grid,
.products-grid,
.features-grid,
.security-grid {
  display: grid;
  gap: 16px;
}
.problem-grid { grid-template-columns: repeat(3, 1fr); }
.products-grid { grid-template-columns: repeat(2, 1fr); }
.features-grid { grid-template-columns: repeat(3, 1fr); }
.security-grid { grid-template-columns: repeat(2, 1fr); }
.problem-card,
.product-card,
.mini-card,
.security-card,
.step {
  padding: 24px;
}
.problem-tag,
.product-tag {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--cyan-soft);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.problem-tag.client,
.product-tag.client {
  color: #4da6ff;
  background: var(--blue-soft);
}
.product-card.constructor { border-top: 2px solid var(--cyan); }
.product-card.client { border-top: 2px solid var(--blue); }
.product-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.product-symbol {
  width: 42px;
  height: 42px;
  filter: drop-shadow(0 0 24px rgba(0, 212, 170, 0.18));
}
.product-card h3,
.mini-card h3,
.step h3,
.security-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}
.feature-list {
  list-style: none;
  display: grid;
  gap: 10px;
  margin-top: 20px;
}
.feature-list li {
  position: relative;
  color: var(--text-dim);
  padding-left: 18px;
}
.feature-list li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
}
.feature-list.client li::before { color: #4da6ff; }

/* ── How it works ─────────────────────────────────────────────────────────── */
.steps { grid-template-columns: repeat(3, 1fr); display: grid; gap: 18px; }
.step { position: relative; overflow: hidden; }
.step-no {
  display: block;
  font-family: var(--mono);
  font-size: 38px;
  color: rgba(0, 212, 170, 0.14);
  margin-bottom: 18px;
}
.mini-card p,
.security-card p,
.step p,
.problem-card p,
.product-card p {
  color: var(--text-dim);
}

/* ── M38-D: Proof points band ─────────────────────────────────────────────── */
.proof-band {
  padding: 48px 0;
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border-soft);
  border-bottom: 1px solid var(--border-soft);
  background: rgba(13, 17, 23, 0.60);
}
.proof-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
}
.proof-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 12px 16px;
  border-right: 1px solid var(--border-soft);
}
.proof-item:last-child { border-right: none; }
.proof-item strong {
  font-family: var(--mono);
  font-size: clamp(22px, 3vw, 30px);
  color: var(--cyan);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 6px;
}
.proof-item span {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── M38-C: Use cases ─────────────────────────────────────────────────────── */
.uc-tabs {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  width: fit-content;
  margin-bottom: 32px;
}
.uc-tab {
  padding: 10px 22px;
  background: var(--bg-2);
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border-right: 1px solid var(--border);
  transition: background .18s ease, color .18s ease;
}
.uc-tab:last-child { border-right: none; }
.uc-tab:hover { color: var(--text); background: var(--panel); }
.uc-tab.active { background: var(--panel); color: var(--cyan); }

.uc-panel { display: none; }
.uc-panel.active { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; align-items: start; }

.uc-left { display: flex; flex-direction: column; gap: 20px; }
.uc-industry-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(0, 212, 170, 0.25);
  background: var(--cyan-soft);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  width: fit-content;
}
.uc-heading {
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.uc-block-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.uc-problem { color: var(--text-dim); font-size: 15px; line-height: 1.7; }
.uc-detects {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.uc-detects li {
  position: relative;
  color: var(--text);
  font-size: 14px;
  padding-left: 18px;
}
.uc-detects li::before {
  content: "›";
  position: absolute;
  left: 0;
  color: var(--cyan);
  font-weight: 700;
}

.uc-right {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.uc-metric {
  background: linear-gradient(180deg, rgba(13, 17, 23, 0.98), rgba(18, 21, 28, 0.98));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.uc-metric-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  display: block;
}
.uc-metric-value {
  font-family: var(--mono);
  font-size: clamp(24px, 3vw, 32px);
  color: var(--cyan);
  letter-spacing: -0.03em;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}
.uc-metric-value.risk { color: #ffb020; }
.uc-metric-value.critical { color: #ff4d6a; }
.uc-metric-desc {
  color: var(--text-dim);
  font-size: 13px;
}

/* ── Integration ──────────────────────────────────────────────────────────── */
.integration-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.platform-chip {
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-dim);
  border-radius: 999px;
  padding: 8px 14px;
  font-family: var(--mono);
  font-size: 12px;
}

/* ── CTA ──────────────────────────────────────────────────────────────────── */
.cta-section { text-align: center; }

/* ── M38-E: Footer enrichi ────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border-soft);
  padding: 56px 0 32px;
  position: relative;
  z-index: 2;
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-logo { height: 32px; width: auto; margin-bottom: 12px; }
.footer-tagline {
  font-size: 13px;
  color: var(--text-dim);
  max-width: 220px;
  line-height: 1.6;
}
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}
.footer-nav a {
  font-size: 13px;
  color: var(--text-dim);
  transition: color .15s ease;
}
.footer-nav a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-dim);
  font-family: var(--mono);
  font-size: 11px;
}

/* M38-E: Sticky micro-CTA */
#sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 90;
  background: rgba(10, 12, 16, 0.95);
  border-top: 1px solid var(--border-soft);
  backdrop-filter: blur(12px);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  transform: translateY(100%);
  transition: transform .3s ease;
}
#sticky-cta.visible { transform: translateY(0); }
#sticky-cta .sticky-label {
  font-size: 13px;
  color: var(--text-dim);
  display: none;
}
#sticky-cta .btn { padding: 9px 20px; font-size: 12px; }

/* ── Reveal animations ────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .65s ease, transform .65s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .hero-grid,
  .problem-grid,
  .products-grid,
  .features-grid,
  .security-grid,
  .steps { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(3, 1fr); }
  .proof-item:nth-child(3) { border-right: none; }
  .uc-panel.active { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 780px) {
  /* M38-A: mobile nav */
  nav { position: sticky; }
  .nav-hamburger { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(10, 12, 16, 0.98);
    border-bottom: 1px solid var(--border-soft);
    backdrop-filter: blur(12px);
    padding: 16px 24px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    z-index: 99;
  }
  nav.nav-open .nav-links { display: flex; }
  .nav-inner { align-items: center; padding: 0; }
  .nav-links .btn { width: 100%; justify-content: center; }

  .proof-grid { grid-template-columns: repeat(2, 1fr); gap: 0; }
  .proof-item:nth-child(2) { border-right: none; }
  .proof-item:nth-child(3) { border-right: 1px solid var(--border-soft); }
  .proof-item:nth-child(4) { border-right: none; }
  .proof-item { padding: 16px 12px; }

  .uc-tabs { flex-wrap: wrap; width: 100%; }
  .uc-tab { flex: 1; text-align: center; }

  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  #sticky-cta .sticky-label { display: block; }
}

@media (max-width: 520px) {
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
}