/* ============================================================
   NEKOVA Docs — Landing Page
   Signature: a blinking terminal cursor that "wakes up" and
   starts thinking as you scroll — literalizing `think` as a
   keyword. Green/white/grey only; red and amber never appear
   here, since nothing on this page is an error or warning.
   ============================================================ */

.landing { overflow-x: clip; }

/* --- Hero --- */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  padding: var(--space-5);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.55;
}

.hero-content { position: relative; z-index: 1; max-width: 780px; }

.hero-kicker {
  font-family: var(--font-code);
  font-size: 0.85rem;
  color: var(--nk-green);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}
.hero-kicker .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--nk-green-bright);
  box-shadow: 0 0 10px 2px rgba(61, 220, 132, 0.6);
  animation: blink 1.4s step-start infinite;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  margin: 0 0 var(--space-4);
  line-height: 1.15;
}
.hero h1 .think-kw {
  color: var(--nk-green-bright);
  position: relative;
}
.hero h1 .cursor-caret {
  display: inline-block;
  width: 0.09em;
  background: var(--nk-green-bright);
  margin-left: 0.05em;
  animation: blink 1s step-start infinite;
}

.hero .sub {
  font-size: 1.15rem;
  color: var(--nk-white-2);
  max-width: 56ch;
  margin: 0 auto var(--space-5);
}

.hero-actions { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85em 1.7em;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  display: inline-block;
}
.btn-primary {
  background: var(--nk-green);
  color: var(--nk-black);
}
.btn-primary:hover {
  background: var(--nk-green-bright);
  color: var(--nk-black);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow-green);
}
.btn-ghost {
  border-color: var(--nk-grey-2);
  color: var(--nk-white-2);
  background: transparent;
}
.btn-ghost:hover { border-color: var(--nk-grey); color: var(--nk-white); transform: translateY(-2px); }

.scroll-cue {
  position: absolute;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%);
  color: var(--nk-white-3);
  font-size: 0.78rem;
  font-family: var(--font-code);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5em;
  opacity: 0.8;
}
.scroll-cue .line { width: 1px; height: 34px; background: linear-gradient(var(--nk-green), transparent); animation: scroll-pulse 1.8s ease-in-out infinite; }
@keyframes scroll-pulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* --- Story sections (scrollytelling) --- */
.story {
  max-width: 720px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}
.story-eyebrow {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--nk-green);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-3);
}
.story h2 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  margin: 0 0 var(--space-4);
}
.story p {
  font-size: 1.08rem;
  color: var(--nk-white-2);
  margin-bottom: var(--space-3);
}
.story .highlight { color: var(--nk-white); font-weight: 600; }
.story .accent { color: var(--nk-green-bright); }

/* --- Terminal reproduction (origin story visual) --- */
.terminal-window {
  background: var(--nk-black-3);
  border: 1px solid var(--nk-grey-2);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  margin: var(--space-5) 0;
}
.terminal-titlebar {
  display: flex;
  align-items: center;
  gap: 0.4em;
  padding: 0.7em 1em;
  background: var(--nk-black-2);
  border-bottom: 1px solid var(--nk-grey-2);
}
.terminal-titlebar .tdot { width: 10px; height: 10px; border-radius: 50%; background: var(--nk-grey); }
.terminal-titlebar .tlabel {
  margin-left: auto;
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--nk-white-3);
}
.terminal-body {
  padding: var(--space-4);
  font-family: var(--font-code);
  font-size: 0.88rem;
  color: var(--nk-white-2);
  line-height: 1.7;
}
.terminal-body .prompt { color: var(--nk-green); }
.terminal-body .err { color: var(--nk-error); }
.terminal-body .ok { color: var(--nk-green-bright); }

/* --- Pillars (3D tilt cards) --- */
.pillars {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}
.pillars-head { text-align: center; max-width: 640px; margin: 0 auto var(--space-6); }
.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  perspective: 1200px;
}
@media (max-width: 860px) { .pillars-grid { grid-template-columns: 1fr; } }

.pillar-card {
  background: var(--nk-black-3);
  border: 1px solid var(--nk-grey-2);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, border-color 0.3s ease, box-shadow 0.3s ease;
  will-change: transform;
}
.pillar-card:hover {
  border-color: var(--nk-green-deep);
  box-shadow: var(--shadow-glow-green);
}
.pillar-card .pillar-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--nk-grey-2);
  border-radius: var(--radius-md);
  color: var(--nk-green-bright);
  margin-bottom: var(--space-4);
  font-family: var(--font-code);
  font-size: 1.2rem;
  transform: translateZ(30px);
}
.pillar-card h3 {
  transform: translateZ(20px);
  margin: 0 0 var(--space-2);
  font-size: 1.15rem;
}
.pillar-card p {
  transform: translateZ(10px);
  color: var(--nk-white-2);
  font-size: 0.95rem;
  margin: 0;
}

/* --- Live example --- */
.showcase {
  max-width: 920px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
  text-align: center;
}
.showcase-code {
  text-align: left;
  margin-top: var(--space-5);
}

/* --- Final CTA --- */
.final-cta {
  text-align: center;
  padding: var(--space-8) var(--space-5) var(--space-7);
  max-width: 640px;
  margin: 0 auto;
}
.final-cta h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: var(--space-3); }
.final-cta p { color: var(--nk-white-2); margin-bottom: var(--space-5); }
.install-line {
  display: inline-flex;
  align-items: center;
  gap: 0.8em;
  background: var(--nk-black-3);
  border: 1px solid var(--nk-grey-2);
  border-radius: var(--radius-md);
  padding: 0.9em 1.4em;
  font-family: var(--font-code);
  font-size: 0.95rem;
  color: var(--nk-green-pale);
  margin-bottom: var(--space-5);
}
.install-line .prompt-mark { color: var(--nk-green); }