/* =========================================================
   TOKENS
   ========================================================= */
:root {
  /* color */
  --ink:        #0f1417;   /* base background */
  --ink-raised: #161d21;   /* cards / panels */
  --line:       #29333a;   /* hairline borders */
  --paper:      #e9e6de;   /* primary text (warm off-white) */
  --paper-dim:  #8d9aa1;   /* secondary text */
  --amber:      #ffb000;   /* signature accent — phosphor amber */
  --amber-dim:  #b3801a;
  --teal:       #4fa89b;   /* secondary accent — circuit teal */
  --red:        #e5484d;   /* error / disconnect state */

  /* type */
  --font-display: "Space Grotesk", sans-serif;
  --font-mono: "JetBrains Mono", monospace;

  /* layout */
  --max-w: 1120px;
  --edge: clamp(20px, 5vw, 64px);
  --radius: 3px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-display);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

a { color: inherit; }

::selection { background: var(--amber); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

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

.mono { font-family: var(--font-mono); }

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px var(--edge);
  background: rgba(15, 20, 23, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--paper);
}

.nav__brand .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 8px var(--amber);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 14px;
  color: var(--paper-dim);
}

.nav__links a { text-decoration: none; transition: color 0.15s ease; }
.nav__links a:hover { color: var(--paper); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 10px 18px;
  border-radius: var(--radius);
  border: 1px solid var(--amber);
  color: var(--ink);
  background: var(--amber);
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { box-shadow: 0 0 0 3px rgba(255,176,0,0.18); }
.btn:active { transform: translateY(1px); }

.btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--paper-dim); box-shadow: none; }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) var(--edge) clamp(32px, 6vw, 64px);
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 56px;
  align-items: center;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 20px;
}

.hero h1 em {
  font-style: normal;
  color: var(--amber);
}

.hero p.lede {
  color: var(--paper-dim);
  font-size: 17px;
  max-width: 46ch;
  margin: 0 0 32px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero__meta {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper-dim);
}
.hero__meta span { color: var(--paper); }

/* --- terminal mock (signature element) --- */
.termcard {
  background: var(--ink-raised);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 30px 80px -30px rgba(0,0,0,0.7);
}

.termcard__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  background: #12181b;
}

.termcard__bar .chip {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--line);
}

.termcard__bar .label {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--paper-dim);
}

.termcard__body {
  padding: 18px 18px 22px;
  font-family: var(--font-mono);
  font-size: 13px;
  min-height: 280px;
}

.termcard__body .ln { margin: 0 0 6px; white-space: pre-wrap; }
.termcard__body .ok    { color: var(--teal); }
.termcard__body .warn  { color: var(--amber); }
.termcard__body .dim   { color: var(--paper-dim); }

.caret {
  display: inline-block;
  width: 7px; height: 14px;
  background: var(--amber);
  vertical-align: -2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* =========================================================
   SECTIONS
   ========================================================= */
section { padding: clamp(48px, 7vw, 84px) var(--edge); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }

.section-head { margin-bottom: 40px; max-width: 60ch; }
.section-head .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 12px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.section-head p { color: var(--paper-dim); margin: 0; }

.divider {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* feature grid */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}
@media (max-width: 800px) {
  .features { grid-template-columns: 1fr; }
}

.feature {
  background: var(--ink);
  padding: 28px 26px;
}

.feature .tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber-dim);
  letter-spacing: 0.08em;
  margin: 0 0 14px;
}

.feature h3 {
  font-size: 17px;
  margin: 0 0 10px;
}

.feature p {
  color: var(--paper-dim);
  font-size: 14px;
  margin: 0;
}

/* how it works — real sequence, numbering is meaningful */
.steps {
  display: grid;
  gap: 0;
}
.step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.step:first-child { padding-top: 0; }
.step:last-child { border-bottom: none; }

.step__num {
  font-family: var(--font-mono);
  color: var(--amber);
  font-size: 13px;
  padding-top: 3px;
}

.step h3 { margin: 0 0 6px; font-size: 16px; }
.step p { margin: 0; color: var(--paper-dim); font-size: 14px; max-width: 60ch; }

/* compatibility strip */
.compat {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.pill {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: var(--paper-dim);
}
.pill.yes { color: var(--teal); border-color: rgba(79,168,155,0.35); }
.pill.no  { color: var(--red); border-color: rgba(229,72,77,0.3); }

/* CTA band */
.cta-band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-raised);
}
.cta-band .section-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-band h2 { margin: 0 0 6px; font-size: 24px; }
.cta-band p { margin: 0; color: var(--paper-dim); }

/* footer */
footer {
  padding: 32px var(--edge) 48px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper-dim);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  max-width: var(--max-w);
  margin: 0 auto;
}
footer a { color: var(--paper-dim); text-decoration: none; }
footer a:hover { color: var(--paper); }