/* =========================================================
   KABNEX — Design System
   Display: Space Grotesk · Body: IBM Plex Sans · Utility: IBM Plex Mono
   ========================================================= */

:root {
  /* Color */
  --bg: #0b0e14;
  --bg-elevated: #10141d;
  --surface: #161b26;
  --surface-2: #1c2230;
  --border: #262d3d;
  --text: #e7e5dd;
  --text-dim: #a9aebb;
  --text-faint: #6b7280;
  --amber: #ffb454;
  --amber-dim: #8a6a3a;
  --teal: #4dd6c4;
  --teal-dim: #2f6b64;
  --danger: #ff6b6b;

  /* Type */
  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "IBM Plex Sans", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  /* Layout */
  --max-w: 1180px;
  --radius: 14px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
html, body { overflow-x: hidden; max-width: 100%; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 4rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em; color: var(--text-dim); }

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

section { padding: 96px 0; }
@media (max-width: 720px) {
  section { padding: 64px 0; }
  .hero { padding: 56px 0 40px; }
}

/* ---------- Eyebrow (code-comment style label) ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}
.eyebrow::before { content: "//"; color: var(--text-faint); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}
.btn-primary {
  background: var(--amber);
  color: #1a1204;
  font-weight: 600;
}
.btn-primary:hover { transform: translateY(-2px); background: #ffc274; }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); transform: translateY(-2px); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
}
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(11, 14, 20, 0.86);
  backdrop-filter: blur(10px);
  z-index: -1;
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  max-width: var(--max-w);
  margin: 0 auto;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
}
.logo-mark {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  object-fit: contain;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.92rem;
}
.nav-links a {
  color: var(--text-dim);
  position: relative;
  padding: 4px 2px;
  transition: color 0.15s ease;
}
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--text); }
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--amber);
}
.nav-cta { display: flex; align-items: center; gap: 18px; }
.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    inset: 68px 0 0 0;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 28px;
    gap: 22px;
    font-size: 1.1rem;
    transform: translateX(100%);
    transition: transform 0.25s ease;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
}

/* ---------- Terminal component (signature element) ---------- */
.terminal {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.6);
  font-family: var(--font-mono);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.terminal-dot { width: 11px; height: 11px; border-radius: 50%; }
.terminal-dot.r { background: #ff5f56; }
.terminal-dot.y { background: #ffbd2e; }
.terminal-dot.g { background: #27c93f; }
.terminal-title { margin-left: 10px; font-size: 0.8rem; color: var(--text-faint); }
.terminal-body {
  padding: 22px 20px;
  font-size: 0.92rem;
  line-height: 1.9;
  min-height: 220px;
}
.terminal-body .prompt { color: var(--teal); }
.terminal-body .out { color: var(--text-dim); }
.terminal-body .ok { color: var(--amber); }
.cursor {
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--teal);
  vertical-align: text-bottom;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Code panel (values / arrays) ---------- */
.code-panel {
  font-family: var(--font-mono);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 28px;
  font-size: 0.95rem;
  line-height: 2;
  color: var(--text-dim);
  overflow-x: auto;
}
.code-panel .kw { color: var(--teal); }
.code-panel .str { color: var(--amber); }
.code-panel .cm { color: var(--text-faint); }

/* ---------- Cards / grid ---------- */
.grid {
  display: grid;
  gap: 24px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover { border-color: var(--teal-dim); transform: translateY(-4px); }
.card-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  color: var(--teal);
}
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: 0.95rem; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--amber);
}

/* ---------- Hero ---------- */
.hero {
  padding: 84px 0 60px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 940px) {
  .hero-grid { grid-template-columns: 1fr; }
}
.hero h1 { margin-bottom: 22px; }
.hero .lede { font-size: 1.1rem; max-width: 46ch; }
.hero-actions { display: flex; gap: 14px; margin-top: 32px; flex-wrap: wrap; }

/* ---------- Section header ---------- */
.section-head { max-width: 640px; margin-bottom: 48px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Founders ---------- */
.founder-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.avatar {
  width: 66px;
  height: 66px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: #0b0e14;
  overflow: hidden;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.avatar.amber { background: linear-gradient(135deg, var(--amber), #ffd28f); }
.avatar.teal { background: linear-gradient(135deg, var(--teal), #9af0e4); }
.founder-role {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
}
.founder-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--teal);
  background: rgba(77, 214, 196, 0.08);
  border: 1px solid var(--teal-dim);
  padding: 4px 10px;
  border-radius: 999px;
  width: fit-content;
}

/* ---------- Process steps ---------- */
.steps {
  display: grid;
  gap: 20px;
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 22px 0;
  border-top: 1px solid var(--border);
}
.step:first-child { border-top: 1px solid var(--border); }
.step-num {
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 1.1rem;
}
.step h4 { margin: 0 0 6px; font-family: var(--font-display); font-size: 1.1rem; }
.step p { margin: 0; font-size: 0.95rem; }

/* ---------- Service detail rows ---------- */
.service-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 64px 0;
  border-top: 1px solid var(--border);
}
.service-row:first-of-type { border-top: none; }
.service-row.reverse .service-visual { order: 2; }
@media (max-width: 860px) {
  .service-row, .service-row.reverse .service-visual { grid-template-columns: 1fr; order: 0; }
  .service-row { grid-template-columns: 1fr; }
}
.service-index {
  font-family: var(--font-mono);
  color: var(--text-faint);
  font-size: 0.85rem;
}
.service-visual {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 220px;
}
.service-visual svg { width: 96px; height: 96px; color: var(--teal); }
.deliverables {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}
.deliverables li {
  display: flex;
  gap: 10px;
  font-size: 0.94rem;
  color: var(--text-dim);
}
.deliverables li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  margin-top: 8px;
  flex-shrink: 0;
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 { margin-bottom: 6px; }
.cta-band p { margin: 0; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

.field { margin-bottom: 20px; }
.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.98rem;
  transition: border-color 0.15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
}
.field textarea { resize: vertical; min-height: 130px; }
.form-note {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  margin-top: 14px;
  min-height: 1.4em;
}
.form-note.success { color: var(--teal); }
.form-note.error { color: var(--danger); }

.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.info-row { display: flex; gap: 14px; align-items: flex-start; }
.info-row .ico {
  width: 38px; height: 38px;
  border-radius: 9px;
  background: var(--surface-2);
  display: flex; align-items: center; justify-content: center;
  color: var(--amber);
  flex-shrink: 0;
}
.info-row .label { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-faint); margin-bottom: 2px; }
.info-row .value { color: var(--text); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 52px 0 32px;
  margin-top: 40px;
}
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.footer-col { flex: 1 1 180px; }
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-links a { color: var(--text-dim); font-size: 0.94rem; }
.footer-links a:hover { color: var(--teal); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* ---------- Small phones ---------- */
@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .nav { padding: 14px 18px; }
  .logo { font-size: 1rem; gap: 8px; }
  .logo-mark { width: 26px; height: 26px; }
  .hero, section { padding: 48px 0; }
  .hero-actions { gap: 10px; }
  .btn { padding: 12px 18px; font-size: 0.86rem; }
  .cta-band { padding: 30px 20px; }
  .terminal-body { padding: 18px 14px; font-size: 0.85rem; }
  .service-visual { min-height: 150px; padding: 24px; }
  .service-visual svg { width: 64px; height: 64px; }
  .founder-card, .info-card, .card { padding: 22px; }
  .footer-col { flex-basis: 100%; }
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.in { opacity: 1; transform: translateY(0); }

/* ---------- Utilities ---------- */
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}