/* atendemos tu web · design tokens & base */
:root {
  --color-bg: #0A0A0A;
  --color-bg-elevated: #111111;
  --color-bg-card: #131313;
  --color-border: #1f1f1f;
  --color-border-strong: #2a2a2a;
  --color-text: #FAFAFA;
  --color-text-muted: #888888;
  --color-text-soft: #c4c4c4;
  --color-accent: #C5F23E;
  --color-accent-dim: #C5F23E22;
  --font-sans: 'Geist', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --tracking-tight: -0.04em;
  --tracking-normal: -0.02em;
  --tracking-mono: 0.02em;
  --weight-regular: 400;
  --weight-medium: 500;

  /* density (overridden by tweak) */
  --section-py: 120px;
  --container-px: 32px;
  --block-gap: 80px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: var(--weight-regular);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01', 'cv11';
}

body {
  font-size: 15px;
  line-height: 1.65;
  letter-spacing: -0.01em;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

::selection { background: var(--color-accent); color: var(--color-bg); }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--container-px);
}

.container-narrow {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 var(--container-px);
}

/* ───── Type scale ───── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: var(--tracking-mono);
  color: var(--color-text-muted);
  text-transform: lowercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before, .eyebrow.bracketed::before { content: "[ "; }
.eyebrow::after, .eyebrow.bracketed::after { content: " ]"; }

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

h1, h2, h3, h4 {
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-tight);
  margin: 0;
  text-wrap: balance;
}

h1 { font-size: clamp(48px, 7vw, 80px); line-height: 1.02; }
h2 { font-size: clamp(32px, 4vw, 48px); line-height: 1.05; letter-spacing: var(--tracking-tight); }
h3 { font-size: clamp(20px, 2vw, 24px); line-height: 1.2; letter-spacing: var(--tracking-normal); }

p { margin: 0; }
.muted { color: var(--color-text-muted); }
.soft  { color: var(--color-text-soft); }

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: var(--tracking-mono);
  color: var(--color-text-muted);
}
.mono-accent { color: var(--color-accent); }

/* ───── Buttons ───── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: var(--weight-medium);
  letter-spacing: -0.01em;
  border: 0.5px solid transparent;
  transition: all 180ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 0 4px var(--color-accent-dim);
}
.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn-secondary:hover {
  border-color: var(--color-text-muted);
  background: #ffffff05;
}
.btn-ghost {
  background: transparent;
  color: var(--color-text-soft);
  padding: 10px 16px;
  border: 0;
}
.btn-ghost:hover { color: var(--color-text); }

.arrow-after::after { content: "→"; transition: transform 180ms ease; }
.arrow-after:hover::after { transform: translateX(3px); }

/* ───── Cards ───── */
.card {
  background: var(--color-bg-card);
  border: 0.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color 200ms ease, transform 200ms ease;
}
.card:hover {
  border-color: var(--color-border-strong);
}

/* ───── Section helpers ───── */
section { padding: var(--section-py) 0; }
.section-divider { border-top: 0.5px solid var(--color-border); }

.section-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: end;
  margin-bottom: 56px;
}
.section-head .lead { max-width: 480px; color: var(--color-text-soft); font-size: 16px; }

@media (max-width: 800px) {
  .section-head { grid-template-columns: 1fr; gap: 20px; }
}

/* ───── Nav ───── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 0.5px solid var(--color-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 var(--container-px);
  max-width: 1240px;
  margin: 0 auto;
}
.nav-logo {
  font-size: 16px;
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-tight);
  display: inline-flex;
  align-items: baseline;
}
.nav-logo .dot { color: var(--color-accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-link {
  color: var(--color-text-muted);
  font-size: 14px;
  letter-spacing: -0.01em;
  transition: color 160ms ease;
}
.nav-link:hover, .nav-link.active { color: var(--color-text); }
.nav-cta { display: flex; align-items: center; gap: 12px; }

@media (max-width: 720px) {
  .nav-links { display: none; }
}

/* ───── Footer ───── */
.footer {
  border-top: 0.5px solid var(--color-border);
  padding: 56px 0 40px;
  color: var(--color-text-muted);
  font-size: 13px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 56px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  color: var(--color-text-muted);
  letter-spacing: var(--tracking-mono);
  text-transform: lowercase;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  color: var(--color-text-soft);
  padding: 4px 0;
  font-size: 13px;
}
.footer-col a:hover { color: var(--color-text); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  border-top: 0.5px solid var(--color-border);
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-mono);
}

@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ───── Density tweak ───── */
body[data-density="compact"] {
  --section-py: 80px;
  --block-gap: 56px;
}
body[data-density="airy"] {
  --section-py: 160px;
  --block-gap: 120px;
}

/* ───── Accent tweak ───── */
body[data-accent="cyan"]   { --color-accent: #5EEAD4; --color-accent-dim: #5EEAD422; }
body[data-accent="amber"]  { --color-accent: #FCD34D; --color-accent-dim: #FCD34D22; }
body[data-accent="violet"] { --color-accent: #C4B5FD; --color-accent-dim: #C4B5FD22; }
body[data-accent="white"]  { --color-accent: #FAFAFA; --color-accent-dim: #FAFAFA22; }

/* ───── Utility ───── */
.divider-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: var(--tracking-mono);
  color: var(--color-text-muted);
  text-transform: lowercase;
}

.dot-pulse {
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 0 var(--color-accent);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 var(--color-accent-dim); }
  70%  { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* hide scrollbars in chat windows */
.no-scrollbar::-webkit-scrollbar { display: none; }
.no-scrollbar { scrollbar-width: none; }

/* fade-up entrance */
.fade-up { animation: fadeUp 600ms ease both; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}