/* Web comercial de Catalyra (D-67): estática, sin dependencias. Paleta de la app (zinc) con un acento. */
:root {
  --bg: #0b0b0f;
  --bg-soft: #131318;
  --bg-card: #17171d;
  --line: #26262e;
  --text: #f4f4f5;
  --text-soft: #a1a1aa;
  --accent: #d4ff3f;
  --accent-ink: #0b0b0f;
  --warn: #fbbf24;
  --radius: 14px;
  --font: ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

h1,
h2,
h3 {
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 {
  font-size: clamp(2.3rem, 5.2vw, 4rem);
  font-weight: 750;
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  font-weight: 700;
}

h3 {
  font-size: 1.12rem;
  font-weight: 650;
}

p {
  margin: 0;
}

.wrap {
  width: min(1120px, 100% - 32px);
  margin-inline: auto;
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 8px 14px;
  border-radius: 8px;
  z-index: 10;
}

.skip:focus {
  left: 16px;
}

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

/* Encabezado */
.top {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.top__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
}

.brand__mark {
  width: 30px;
  height: 30px;
}

.brand__mark rect:first-child {
  fill: var(--bg-card);
}

.brand__mark g {
  fill: var(--accent);
}

.top__nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font-size: 0.95rem;
}

.top__nav a:not(.button) {
  color: var(--text-soft);
  text-decoration: none;
}

.top__nav a:not(.button):hover {
  color: var(--text);
}

/* Botones */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 650;
  text-decoration: none;
  border: 1px solid var(--accent);
  transition:
    transform 0.15s ease,
    background 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.button--ghost:hover {
  border-color: var(--text-soft);
}

.top__nav .button {
  min-height: 38px;
  padding: 0 16px;
  font-size: 0.92rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.actions--center {
  justify-content: center;
}

/* Portada */
.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 96px;
  background:
    radial-gradient(60rem 30rem at 85% -10%, rgb(212 255 63 / 0.1), transparent 60%),
    radial-gradient(40rem 26rem at -10% 110%, rgb(139 92 246 / 0.12), transparent 60%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}

.hero__copy {
  display: grid;
  gap: 24px;
}

.lead {
  color: var(--text-soft);
  font-size: 1.15rem;
  max-width: 36rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-soft);
  font-size: 0.9rem;
}

.pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgb(212 255 63 / 0.18);
}

/* Panel de muestra (decorativo) */
.panel {
  display: grid;
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(180deg, var(--bg-card), var(--bg-soft));
  box-shadow: 0 30px 80px rgb(0 0 0 / 0.45);
  font-size: 0.93rem;
}

.panel__head,
.panel__foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
}

.panel__head {
  font-weight: 650;
}

.panel__foot {
  color: var(--text-soft);
  font-size: 0.85rem;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.tag {
  display: inline-block;
  padding: 1px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.tag--ok {
  background: rgb(212 255 63 / 0.14);
  color: var(--accent);
}

.tag--warn {
  background: rgb(251 191 36 / 0.14);
  color: var(--warn);
  margin-left: 6px;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
  color: var(--text-soft);
}

.steps li {
  position: relative;
  padding-left: 28px;
}

.steps li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.42em;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid var(--line);
}

.steps__done {
  color: var(--text);
}

.steps__done::before {
  background: var(--accent);
  border-color: var(--accent) !important;
}

.steps__now {
  color: var(--text);
  font-weight: 600;
}

.steps__now::before {
  border-color: var(--warn) !important;
}

.wave {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 56px;
}

.wave span {
  flex: 1;
  border-radius: 3px;
  background: linear-gradient(180deg, var(--accent), rgb(212 255 63 / 0.35));
  height: 30%;
}

.wave span:nth-child(3n) {
  height: 70%;
}

.wave span:nth-child(4n + 1) {
  height: 48%;
}

.wave span:nth-child(5n + 2) {
  height: 92%;
}

.wave span:nth-child(7n) {
  height: 22%;
}

/* Franja */
.band {
  border-block: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 34px 0;
}

.band__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  color: var(--text-soft);
  font-size: 0.98rem;
}

.band strong {
  color: var(--text);
}

/* Secciones */
.section {
  padding: 96px 0;
}

.section--alt {
  background: var(--bg-soft);
  border-block: 1px solid var(--line);
}

.section__lead {
  color: var(--text-soft);
  margin-top: 14px;
  max-width: 40rem;
}

.cards {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-card);
}

.card h3::before {
  content: '';
  display: block;
  width: 28px;
  height: 3px;
  border-radius: 2px;
  background: var(--accent);
  margin-bottom: 16px;
}

.card p {
  color: var(--text-soft);
  font-size: 0.97rem;
}

.flow {
  list-style: none;
  margin: 44px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.flow li {
  display: grid;
  align-content: start;
  justify-items: start;
  gap: 10px;
}

.flow p {
  color: var(--text-soft);
}

.flow__n {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-weight: 700;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

.checks {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  color: var(--text-soft);
}

.checks li {
  position: relative;
  padding-left: 30px;
}

.checks li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 16px;
  height: 9px;
  border-left: 2px solid var(--accent);
  border-bottom: 2px solid var(--accent);
  transform: rotate(-45deg);
}

/* Invitación */
.cta {
  padding-top: 32px;
}

.cta__box {
  display: grid;
  gap: 20px;
  justify-items: center;
  text-align: center;
  padding: 64px 32px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: radial-gradient(40rem 18rem at 50% 0%, rgb(212 255 63 / 0.1), transparent 70%), var(--bg-card);
}

.cta__box p {
  color: var(--text-soft);
  max-width: 38rem;
}

/* Pie */
.foot {
  border-top: 1px solid var(--line);
  padding: 28px 0 40px;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.foot__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.foot a {
  text-decoration: none;
}

.foot a:hover {
  color: var(--text);
}

/* Error 404 */
.missing {
  min-height: 70vh;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 18px;
  text-align: center;
  padding: 48px 16px;
}

.missing p {
  color: var(--text-soft);
}

@media (max-width: 900px) {
  .hero {
    padding: 56px 0 64px;
  }

  .hero__grid,
  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .cards,
  .flow,
  .band__grid {
    grid-template-columns: 1fr 1fr;
  }

  .section {
    padding: 72px 0;
  }
}

@media (max-width: 620px) {
  body {
    font-size: 16px;
  }

  .top__nav a:not(.button) {
    display: none;
  }

  .cards,
  .flow,
  .band__grid {
    grid-template-columns: 1fr;
  }

  .actions .button {
    width: 100%;
  }

  .cta__box {
    padding: 44px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}