/* ───────────────────────────── tokens ───────────────────────────── */
:root {
  --accent: #7CFF6B;
  --accent-ink: #0a0a0a;
  --accent-dim: rgba(124, 255, 107, 0.12);
  --accent-line: rgba(124, 255, 107, 0.28);

  --font-sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-serif: "Instrument Serif", "Times New Roman", serif;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 22px;

  --max: 1280px;
  --gutter: 32px;
}

/* dark (default) */
:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-1: #0f0f0f;
  --bg-2: #161616;
  --bg-3: #1d1d1d;
  --line: #242424;
  --line-strong: #333333;
  --ink: #f5f5f3;
  --ink-2: #b8b8b3;
  --ink-3: #777771;
  --ink-4: #4a4a47;
  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.04);
  --grid-line: rgba(255,255,255,0.04);
  color-scheme: dark;
}

/* light */
:root[data-theme="light"] {
  --bg: #fafaf7;
  --bg-1: #ffffff;
  --bg-2: #f4f3ee;
  --bg-3: #edece5;
  --line: #e5e3da;
  --line-strong: #cfcdc1;
  --ink: #0a0a0a;
  --ink-2: #4a4a47;
  --ink-3: #6e6e68;
  --ink-4: #a3a39c;
  --accent-ink: #0a0a0a;
  --accent-dim: rgba(0, 0, 0, 0.04);
  --accent-line: rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 30px 80px -30px rgba(20, 20, 20, 0.18), 0 0 0 1px rgba(0,0,0,0.04);
  --grid-line: rgba(0,0,0,0.04);
  color-scheme: light;
}

/* density */
:root[data-density="compact"] { --pad-y: 80px; --card-pad: 16px; --row-pad: 10px 14px; }
:root[data-density="regular"] { --pad-y: 120px; --card-pad: 22px; --row-pad: 14px 18px; }
:root[data-density="comfy"]   { --pad-y: 160px; --card-pad: 28px; --row-pad: 18px 22px; }

/* ───────────────────────────── base ───────────────────────────── */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: default; }
::selection { background: var(--accent); color: var(--accent-ink); }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
@media (max-width: 720px) {
  :root { --gutter: 20px; }
}

/* ───────────────────────────── nav ───────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  background: color-mix(in oklab, var(--bg), transparent 30%);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-mono); font-weight: 500; letter-spacing: -0.01em; font-size: 15px; }
.brand-dot {
  width: 10px; height: 10px; border-radius: 2px;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent-line), 0 0 14px var(--accent);
}
.brand-cl { color: var(--ink-3); }
.nav-links { display: flex; gap: 28px; font-size: 14px; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }
@media (max-width: 720px) { .nav-links { display: none; } }

/* ───────────────────────────── hero ───────────────────────────── */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 60% 55% at 50% 30%, #000 35%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 60% 55% at 50% 30%, #000 35%, transparent 75%);
  pointer-events: none;
}
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-2);
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-1);
  margin-bottom: 28px;
}
.hero-eyebrow .pulse {
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--accent-line); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.hero h1 {
  font-family: var(--font-sans);
  font-size: clamp(40px, 6.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: 0 0 28px;
  max-width: 17ch;
  text-wrap: balance;
}
.hero h1 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--ink-2);
}
.hero h1 .accent {
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0 0.18em;
  border-radius: 4px;
  display: inline-block;
  transform: skew(-3deg);
}
.hero-sub {
  font-size: clamp(17px, 1.5vw, 21px);
  line-height: 1.45;
  color: var(--ink-2);
  max-width: 56ch;
  margin: 0 0 36px;
  text-wrap: pretty;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero-meta {
  margin-top: 36px;
  display: flex; gap: 28px; flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px; color: var(--ink-3);
}
.hero-meta b { color: var(--ink); font-weight: 500; }

/* hero terminal preview */
.hero-preview {
  margin-top: 64px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--bg-1);
  font-family: var(--font-mono);
  font-size: 13px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.hero-preview-tabs {
  display: flex; align-items: center;
  border-bottom: 1px solid var(--line);
  padding: 0 10px;
  background: var(--bg-2);
}
.hero-preview-tab {
  padding: 12px 14px;
  font-size: 12px;
  color: var(--ink-3);
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
}
.hero-preview-tab.active { color: var(--ink); border-bottom-color: var(--accent); }
.hero-preview-tab .dot { color: var(--accent); }
.hero-preview-body { padding: 18px 20px; color: var(--ink-2); }
.hero-preview-body .ln { padding: 2px 0; }
.hero-preview-body .prompt { color: var(--accent); }
.hero-preview-body .ok { color: var(--accent); }
.hero-preview-body .warn { color: #ffbf5c; }
.hero-preview-body .err { color: #ff7a7a; }
.hero-preview-body .dim { color: var(--ink-3); }
.hero-preview-body .ink { color: var(--ink); }
.hero-preview-body .cursor {
  display: inline-block; width: 8px; height: 14px; background: var(--accent);
  vertical-align: -2px; margin-left: 4px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ───────────────────────────── buttons ───────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 22px;
  font-size: 15px; font-weight: 500;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-primary .arrow { font-family: var(--font-mono); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-ghost:hover { background: var(--bg-2); border-color: var(--ink-3); }

.btn-sm { padding: 10px 16px; font-size: 14px; }

/* ───────────────────────────── section ───────────────────────────── */
.section {
  padding: var(--pad-y) 0;
  border-top: 1px solid var(--line);
  position: relative;
}
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}
.section-tag::before {
  content: ""; width: 12px; height: 1px; background: var(--ink-3);
}
.section-title {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  font-weight: 600;
  margin: 0 0 18px;
  max-width: 20ch;
  text-wrap: balance;
}
.section-title em {
  font-family: var(--font-serif);
  font-style: italic; font-weight: 400; color: var(--ink-2);
}
.section-sub {
  font-size: 18px; line-height: 1.5;
  color: var(--ink-2);
  max-width: 60ch;
  text-wrap: pretty;
}

/* ───────────────────────────── problem → solution ───────────────────────────── */
.ps-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
  margin-top: 56px;
}
@media (max-width: 880px) { .ps-grid { grid-template-columns: 1fr; } }
.ps-card {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px;
  background: var(--bg-1);
  position: relative;
}
.ps-card.bad { background: var(--bg-1); }
.ps-card.good {
  background: linear-gradient(180deg, var(--accent-dim), transparent 60%);
  border-color: var(--accent-line);
}
.ps-card .ps-head {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-3); margin-bottom: 18px;
  text-transform: uppercase; letter-spacing: 0.06em;
}
.ps-card.good .ps-head { color: var(--accent); }
.ps-card h3 {
  font-size: 22px; font-weight: 500; margin: 0 0 12px;
  letter-spacing: -0.015em; line-height: 1.2;
}
.ps-card p { color: var(--ink-2); margin: 0 0 18px; line-height: 1.5; }
.ps-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.ps-list li {
  display: flex; gap: 12px; align-items: flex-start;
  font-family: var(--font-mono); font-size: 13px; color: var(--ink-2);
}
.ps-list li .mark { color: var(--ink-4); flex-shrink: 0; }
.ps-card.good .ps-list li .mark { color: var(--accent); }

/* ───────────────────────────── how it works ───────────────────────────── */
.steps {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  margin-top: 56px;
}
@media (max-width: 880px) { .steps { grid-template-columns: 1fr; } }
.step {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  background: var(--bg-1);
  position: relative;
  overflow: hidden;
}
.step-num {
  font-family: var(--font-mono); font-size: 12px;
  color: var(--accent); letter-spacing: 0.06em;
  margin-bottom: 14px;
}
.step h3 {
  font-size: 20px; font-weight: 500; margin: 0 0 10px;
  letter-spacing: -0.01em;
}
.step p { color: var(--ink-2); margin: 0 0 24px; font-size: 15px; line-height: 1.5; }
.step-art {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 16px;
  background: var(--bg-2);
  font-family: var(--font-mono);
  font-size: 12px;
  min-height: 130px;
}

/* ───────────────────────────── tiers ───────────────────────────── */
.tiers-tabs {
  display: flex; gap: 0;
  margin-top: 56px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 4px;
  background: var(--bg-1);
  width: max-content;
  max-width: 100%;
  overflow-x: auto;
}
.tier-tab {
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
  border-radius: 6px;
  background: transparent;
  border: none;
  white-space: nowrap;
}
.tier-tab.active {
  background: var(--bg-3);
  color: var(--ink);
}
.tier-tab .num { color: var(--ink-4); margin-right: 6px; }
.tier-tab.active .num { color: var(--accent); }
.tier-content {
  margin-top: 32px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 40px;
  background: var(--bg-1);
}
@media (max-width: 880px) { .tier-content { grid-template-columns: 1fr; padding: 28px; } }
.tier-content h3 {
  font-size: 32px; font-weight: 500; letter-spacing: -0.02em;
  margin: 0 0 16px; line-height: 1.1;
}
.tier-content h3 em { font-family: var(--font-serif); font-style: italic; color: var(--ink-2); font-weight: 400; }
.tier-quote {
  font-family: var(--font-serif); font-style: italic;
  font-size: 22px; line-height: 1.3; color: var(--ink-2);
  margin: 0 0 24px;
}
.tier-content p { color: var(--ink-2); line-height: 1.5; }
.tier-feat { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 12px; }
.tier-feat li {
  display: flex; gap: 12px; align-items: flex-start;
  font-size: 14px; color: var(--ink-2);
}
.tier-feat li .check {
  color: var(--accent); font-family: var(--font-mono); flex-shrink: 0;
  width: 16px; line-height: 1.5;
}
.tier-cta {
  display: inline-flex; gap: 10px; align-items: center;
  margin-top: 28px;
  font-family: var(--font-mono); font-size: 13px;
  color: var(--accent);
  padding: 10px 14px; border: 1px solid var(--accent-line); border-radius: var(--r-sm);
  background: var(--accent-dim);
  width: max-content;
}

/* ───────────────────────────── moat ───────────────────────────── */
.moat {
  background: var(--bg-1);
}
.moat-grid {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px;
  margin-top: 56px;
}
@media (max-width: 880px) { .moat-grid { grid-template-columns: 1fr; } }
.moat-card {
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 28px;
  background: var(--bg);
}
.moat-card .moat-icon {
  width: 44px; height: 44px;
  border: 1px solid var(--accent-line);
  background: var(--accent-dim);
  border-radius: var(--r-sm);
  display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 14px; color: var(--accent);
  margin-bottom: 18px;
}
.moat-card h4 { font-size: 18px; font-weight: 500; margin: 0 0 10px; letter-spacing: -0.01em; }
.moat-card p { color: var(--ink-2); margin: 0; font-size: 14.5px; line-height: 1.5; }

/* ───────────────────────────── faq ───────────────────────────── */
.faq-list {
  margin-top: 48px;
  border-top: 1px solid var(--line);
}
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 26px 0;
  background: transparent; border: none;
  font-family: var(--font-sans);
  font-size: 19px; font-weight: 500; letter-spacing: -0.01em;
  color: var(--ink);
  text-align: left;
  gap: 24px;
}
.faq-q .plus {
  font-family: var(--font-mono); color: var(--ink-3);
  font-size: 18px; transition: transform 200ms ease;
  flex-shrink: 0;
}
.faq-item.open .plus { transform: rotate(45deg); color: var(--accent); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 280ms ease;
  color: var(--ink-2); font-size: 16px; line-height: 1.55;
}
.faq-item.open .faq-a { max-height: 320px; }
.faq-a-inner { padding: 0 0 28px; max-width: 70ch; }

/* ───────────────────────────── cta final ───────────────────────────── */
.final-cta {
  margin: var(--pad-y) auto;
  max-width: var(--max);
  padding: 0 var(--gutter);
}
.final-cta-inner {
  border-radius: var(--r-xl);
  padding: 80px 56px;
  background:
    radial-gradient(ellipse 50% 80% at 50% 0%, var(--accent-dim), transparent 60%),
    var(--bg-1);
  border: 1px solid var(--line);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.final-cta-inner::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, #000 30%, transparent 70%);
  pointer-events: none;
}
.final-cta-inner > * { position: relative; }
.final-cta h2 {
  font-size: clamp(34px, 4.4vw, 56px);
  line-height: 1; letter-spacing: -0.03em; font-weight: 600;
  margin: 0 0 18px;
  text-wrap: balance;
}
.final-cta h2 em { font-family: var(--font-serif); font-style: italic; font-weight: 400; color: var(--ink-2); }
.final-cta p {
  font-size: 18px; color: var(--ink-2);
  max-width: 50ch; margin: 0 auto 32px;
  text-wrap: pretty;
}
.waitlist-form {
  display: flex; gap: 8px;
  max-width: 480px; margin: 0 auto;
  flex-wrap: wrap;
}
.waitlist-input {
  flex: 1; min-width: 240px;
  padding: 14px 18px;
  font-family: var(--font-mono); font-size: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--ink);
  border-radius: var(--r-md);
  outline: none;
}
.waitlist-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.waitlist-input::placeholder { color: var(--ink-4); }
.waitlist-msg {
  margin-top: 18px;
  font-family: var(--font-mono); font-size: 13px;
  color: var(--accent);
  min-height: 1.2em;
}
.launch-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px;
  padding: 6px 12px; border-radius: 999px;
  background: var(--accent-dim); color: var(--accent);
  border: 1px solid var(--accent-line);
  margin-bottom: 20px;
}

/* ───────────────────────────── footer ───────────────────────────── */
.footer {
  border-top: 1px solid var(--line);
  padding: 36px 0 56px;
  font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-3);
}
.footer-inner { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.footer a:hover { color: var(--ink); }

/* shared visual treatments */
.mono { font-family: var(--font-mono); }
.dim { color: var(--ink-3); }
.serif { font-family: var(--font-serif); font-style: italic; }

/* Video demo en 'Cómo funciona' — marco tipo ventana de app (preload=none: carga al play) */
.demo-video-wrap { max-width: 820px; margin: 4px auto 52px; }
.demo-window {
  border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden;
  background: var(--bg-1); box-shadow: var(--shadow-lg);
}
.demo-window-bar {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 15px; background: var(--bg-2); border-bottom: 1px solid var(--line);
}
.demo-window-bar .dot { width: 11px; height: 11px; border-radius: 50%; flex: 0 0 auto; }
.demo-window-bar .dot.r { background: #ff5f56; }
.demo-window-bar .dot.y { background: #ffbd2e; }
.demo-window-bar .dot.g { background: #27c93f; }
.demo-window-url {
  margin-left: 10px; font-family: var(--font-mono); font-size: 12px;
  color: var(--ink-3); letter-spacing: .02em;
}
.demo-video { width: 100%; display: block; background: #000; }