/* Varas — marketing site */

:root {
  --bg: #0b0d10;
  --bg-elev: #12161b;
  --bg-band: #0f1318;
  --ink: #e8ecf1;
  --ink-mute: #a4afbd;
  --ink-dim: #6c7686;
  --rule: #1f262e;
  --accent: #7cf2c7;        /* lab fluorescein-ish */
  --accent-deep: #2fae87;
  --accent-warm: #f2c14e;   /* sodium lamp */
  --danger: #ef6f6c;
  --crt: #b7ffe6;

  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Menlo", monospace;
  --font-display: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --maxw: 1200px;
  --pad: clamp(20px, 4vw, 56px);
  --radius: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(124, 242, 199, 0.07), transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 30%, rgba(242, 193, 78, 0.04), transparent 70%),
    var(--bg);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  font-weight: 600;
  margin: 0;
}

p { margin: 0; }

code {
  font-family: var(--font-mono);
  font-size: 0.92em;
  background: rgba(124, 242, 199, 0.08);
  border: 1px solid rgba(124, 242, 199, 0.18);
  padding: 0.05em 0.4em;
  border-radius: 4px;
  color: var(--crt);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px var(--pad);
  background: rgba(11, 13, 16, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand-mark { color: var(--accent); }

.brand-word { font-size: 1.15rem; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.92rem;
  color: var(--ink-mute);
}

.site-nav a:hover { color: var(--ink); }

.nav-cta {
  background: var(--accent);
  color: #07120e !important;
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 120ms ease, background 120ms ease;
}

.nav-cta:hover { background: #a8f7d6; transform: translateY(-1px); }

@media (max-width: 720px) {
  .site-nav a:not(.nav-cta) { display: none; }
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: center;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(48px, 8vw, 96px) var(--pad) clamp(40px, 6vw, 80px);
}

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; }
}

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2.4rem, 5.4vw, 4rem);
  line-height: 1.05;
  margin-bottom: 22px;
}

.accent { color: var(--accent); }

.lede {
  color: var(--ink-mute);
  font-size: 1.08rem;
  max-width: 36ch;
  margin-bottom: 28px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 1px solid transparent;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: #07120e;
}
.btn-primary:hover { background: #a8f7d6; transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  border-color: var(--rule);
  color: var(--ink);
}
.btn-ghost:hover { border-color: var(--ink-mute); }

.micro { color: var(--ink-dim); font-size: 0.88rem; }

/* ---------------- 3D scene stage ---------------- */

.hero-stage {
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: 360px;
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(ellipse 50% 30% at 60% 30%, rgba(242, 193, 78, 0.08), transparent 60%),
    linear-gradient(180deg, #0a0c10 0%, #0d1116 100%);
  border: 1px solid var(--rule);
}

.scene-root {
  position: absolute;
  inset: 0;
}

.scene-root canvas { display: block; }

.scene-fallback {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scene-fallback img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-hint {
  position: absolute;
  bottom: 14px;
  left: 0;
  right: 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  pointer-events: none;
  opacity: 0;
  transition: opacity 600ms ease 200ms;
}

.scene-hint.visible { opacity: 1; }

/* CRT screen content rendered via CSS3DRenderer */
.crt-screen {
  width: 480px;
  height: 320px;
  background: #03110d;
  border: 6px solid #1a1d20;
  border-radius: 6px;
  padding: 22px 24px;
  font-family: var(--font-mono);
  color: var(--crt);
  box-shadow:
    inset 0 0 60px rgba(124, 242, 199, 0.18),
    inset 0 0 14px rgba(124, 242, 199, 0.08);
  position: relative;
  overflow: hidden;
  user-select: none;
}

.crt-screen::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0) 4px
  );
}

.crt-tabs {
  display: flex;
  gap: 14px;
  font-size: 12px;
  margin-bottom: 14px;
  border-bottom: 1px dashed rgba(124, 242, 199, 0.25);
  padding-bottom: 10px;
}

.crt-tab {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 200ms ease;
}
.crt-tab.active {
  opacity: 1;
  text-shadow: 0 0 8px rgba(124, 242, 199, 0.6);
}

.crt-body {
  font-size: 14px;
  line-height: 1.6;
}

.crt-body h3 {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--crt);
  margin-bottom: 10px;
  text-shadow: 0 0 6px rgba(124, 242, 199, 0.45);
}

.crt-body p {
  color: rgba(183, 255, 230, 0.82);
  margin-bottom: 8px;
}

.crt-body ul {
  margin: 0;
  padding-left: 18px;
  color: rgba(183, 255, 230, 0.82);
  font-size: 13px;
}

.crt-prompt {
  position: absolute;
  bottom: 14px;
  left: 24px;
  font-size: 12px;
  opacity: 0.7;
}

.crt-cursor {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--crt);
  vertical-align: text-bottom;
  margin-left: 4px;
  animation: crt-blink 1s steps(1) infinite;
}

@keyframes crt-blink {
  50% { opacity: 0; }
}

/* ---------------- bands ---------------- */

.band {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(60px, 9vw, 120px) var(--pad);
}

.band h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  margin-bottom: 36px;
}

/* how it works */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.steps li {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 28px;
}
.step-num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  margin-bottom: 16px;
}
.steps h3 { font-size: 1.2rem; margin-bottom: 10px; }
.steps p { color: var(--ink-mute); }

/* features */
.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.feature-grid li {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 160ms ease, transform 160ms ease;
}
.feature-grid li:hover {
  border-color: rgba(124, 242, 199, 0.32);
  transform: translateY(-2px);
}
.feature-grid h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
  color: var(--ink);
}
.feature-grid p { color: var(--ink-mute); font-size: 0.95rem; }

/* sample doc */
.band-sample { background: linear-gradient(180deg, transparent, rgba(124, 242, 199, 0.02)); }

.sample-intro {
  color: var(--ink-mute);
  margin-bottom: 28px;
  max-width: 60ch;
}

.sample-doc {
  background: #0a0d11;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: var(--ink);
}
.sample-doc h3 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: 18px; }
.sample-doc h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin: 24px 0 12px;
}

.sample-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-bottom: 8px;
}
.sample-table th, .sample-table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--rule);
  text-align: left;
}
.sample-table th { color: var(--ink-mute); font-weight: 500; }

.sample-steps {
  margin: 0;
  padding-left: 20px;
  color: var(--ink-mute);
}
.sample-steps li { margin-bottom: 6px; }

.sample-attrib { color: var(--ink-dim); font-size: 0.82rem; margin-top: 18px; }

/* faq */
.faq-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 18px;
  margin: 0;
}
.faq-list > div {
  background: var(--bg-elev);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.faq-list dt {
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink);
}
.faq-list dd {
  margin: 0;
  color: var(--ink-mute);
  font-size: 0.95rem;
}

/* download */
.band-download {
  text-align: center;
  border-top: 1px solid var(--rule);
}
.download-intro { color: var(--ink-mute); margin-bottom: 28px; }
.badges {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.badge {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  padding: 14px 22px 12px;
  border-radius: 12px;
  background: #0a0d11;
  border: 1px solid var(--rule);
  min-width: 220px;
  transition: border-color 160ms ease, transform 160ms ease;
}
.badge:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}
.badge-mini {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
}
.badge-main {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  margin-top: 2px;
  color: var(--ink);
}
.badge-tag {
  font-size: 0.82rem;
  color: var(--accent);
  margin-top: 6px;
}

.download-fineprint { color: var(--ink-dim); font-size: 0.85rem; }

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

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 28px var(--pad) 40px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 12px;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}
.footer-nav {
  display: flex;
  gap: 18px;
  font-size: 0.9rem;
  color: var(--ink-mute);
}
.footer-nav a:hover { color: var(--ink); }
.footer-fineprint { color: var(--ink-dim); font-size: 0.78rem; }

/* ---------------- reduced motion ---------------- */

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}