:root {
  --bg: #0a0e14;
  --bg-soft: #0d121a;
  --surface: #131a24;
  --surface-hover: #182130;
  --border: #232c3a;
  --border-soft: #1a2230;
  --text: #e9edf2;
  --text-muted: #97a3b8;
  --text-faint: #5e6b81;
  --accent: #35d0a8;
  --accent-strong: #24c197;
  --accent-soft: rgba(53, 208, 168, 0.12);
  --gold: #d9b26a;
  --gold-strong: #c49a52;
  --danger: #e2836f;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --max-width: 1120px;
  --shadow-lg: 0 30px 80px -30px rgba(0, 0, 0, 0.65);
  --shadow-sm: 0 10px 30px -18px rgba(0, 0, 0, 0.55);
  --font-sans:
    system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:
    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 12% -10%, rgba(53, 208, 168, 0.14), transparent 45%),
    radial-gradient(circle at 88% 0%, rgba(217, 178, 106, 0.08), transparent 40%);
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(53, 208, 168, 0.28);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
}

h1,
h2,
h3,
h4 {
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.08;
}

h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  line-height: 1.15;
}

h3 {
  font-size: 1.15rem;
  line-height: 1.3;
}

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

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-soft);
  border-radius: 5px;
  padding: 0.08em 0.4em;
  color: var(--text);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #04140f;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 100;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

/* Nav */

.topnav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(10, 14, 20, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-soft);
}

.topnav__brand {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--text);
}

.topnav__brand .dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px 2px var(--accent);
}

.topnav__links {
  display: flex;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9rem;
}

.topnav__links a {
  text-decoration: none;
  color: var(--text-muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 0.2rem;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.topnav__links a:hover,
.topnav__links a:focus-visible {
  color: var(--text);
  border-color: var(--accent);
}

.topnav__cta {
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--bg);
  background: var(--accent);
  padding: 0.5rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  white-space: nowrap;
  transition: background 0.15s ease, transform 0.15s ease;
}

.topnav__cta:hover,
.topnav__cta:focus-visible {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

/* Hero */

.hero {
  padding: 6rem 0 4.5rem;
  text-align: center;
}

.hero__inner {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 620px;
}

.hero__ctas {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 0.25rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn--primary {
  background: var(--accent);
  color: #04140f;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--accent-strong);
  transform: translateY(-2px);
}

.btn--ghost {
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.btn--whatsapp {
  background: var(--gold);
  color: #241a08;
}

.btn--whatsapp:hover,
.btn--whatsapp:focus-visible {
  background: var(--gold-strong);
  transform: translateY(-2px);
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  width: 100%;
  max-width: 880px;
  margin-top: 1.5rem;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.stat {
  background: var(--bg-soft);
  padding: 1.35rem 0.75rem;
  text-align: center;
}

.stat__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent);
}

.stat__label {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* Sections */

section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-soft);
}

.section__head {
  max-width: 680px;
  margin: 0 auto 3rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: center;
}

.section__head p {
  font-size: 1.02rem;
}

/* Phases */

.phase-list {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.phase {
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), var(--bg-soft));
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}

.phase__head {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.phase__num {
  flex: none;
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid rgba(53, 208, 168, 0.3);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
}

.phase__title-group h3 {
  font-size: 1.35rem;
  margin-bottom: 0.35rem;
}

.phase__title-group p {
  font-size: 0.96rem;
}

.slice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.1rem;
}

.slice {
  border: 1px solid var(--border-soft);
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  padding: 1.15rem 1.25rem;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.slice:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.slice__name {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.03em;
  color: var(--gold);
  margin-bottom: 0.45rem;
}

.slice p {
  font-size: 0.92rem;
  color: var(--text-muted);
}

.slice p strong {
  color: var(--text);
  font-weight: 600;
}

/* Simulate */

.how-it-works {
  list-style: none;
  margin: 0 0 2.5rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  counter-reset: step;
}

.how-it-works li {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  border: 1px solid var(--border-soft);
  background: var(--bg-soft);
  border-radius: var(--radius-md);
  padding: 1rem 1.15rem;
}

.how-it-works li span {
  flex: none;
  width: 1.6rem;
  height: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.82rem;
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem;
  margin-bottom: 1.25rem;
}

.scenario {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, var(--surface), var(--bg-soft));
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.4rem 1.5rem;
  box-shadow: var(--shadow-sm);
}

.scenario__tag {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  background: rgba(217, 178, 106, 0.12);
  border: 1px solid rgba(217, 178, 106, 0.28);
  border-radius: 999px;
  padding: 0.25rem 0.7rem;
}

.scenario__msg {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.5;
  flex: 1;
}

.btn--sm {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  align-self: flex-start;
}

.scenario-note {
  font-size: 0.82rem;
  color: var(--text-faint);
  text-align: center;
  max-width: 620px;
  margin: 0 auto 3.5rem;
}

.catalog h3 {
  font-size: 1.05rem;
  margin-bottom: 1.1rem;
  color: var(--text);
}

.catalog__scroll {
  overflow-x: auto;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
}

.catalog__table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  min-width: 480px;
}

.catalog__table th,
.catalog__table td {
  text-align: left;
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--border-soft);
  white-space: nowrap;
}

.catalog__table th:nth-child(2),
.catalog__table td:nth-child(2) {
  white-space: normal;
}

.catalog__table th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  background: var(--bg-soft);
}

.catalog__table td:last-child,
.catalog__table th:last-child {
  text-align: right;
  font-family: var(--font-mono);
  color: var(--accent);
}

.catalog__table tbody tr:last-child td {
  border-bottom: none;
}

.catalog__table tbody tr:hover {
  background: var(--surface-hover);
}

.catalog__note {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-top: 0.9rem;
}

/* Architecture */

.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 3rem;
}

.arch-flow__step {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.15rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text);
  text-align: center;
  min-width: 130px;
}

.arch-flow__step span {
  display: block;
  color: var(--text-faint);
  font-size: 0.7rem;
  margin-top: 0.2rem;
}

.arch-flow__arrow {
  color: var(--accent);
  font-size: 1.1rem;
  flex: none;
}

.arch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.1rem;
  margin-bottom: 3rem;
}

.arch-card {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  background: var(--bg-soft);
}

.arch-card h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.arch-card p {
  font-size: 0.9rem;
}

.invariants {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0.9rem;
}

.invariants li {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  font-size: 0.92rem;
  color: var(--text-muted);
  border-left: 2px solid var(--accent);
  padding-left: 0.85rem;
}

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

/* Roadmap */

.timeline {
  position: relative;
  margin: 0 auto;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.85rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), var(--border-soft));
}

.timeline__item {
  position: relative;
  padding-left: 2.75rem;
}

.timeline__dot {
  position: absolute;
  left: 0.4rem;
  top: 0.3rem;
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}

.timeline__item--done .timeline__dot {
  background: var(--accent);
}

.timeline__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}

.timeline__item--done .timeline__tag {
  color: var(--accent);
}

.timeline__item h4 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.timeline__item p {
  font-size: 0.92rem;
}

.followups {
  margin-top: 3rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.75rem;
}

.followups h4 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
}

.followups ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0.6rem 1.5rem;
}

.followups li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 1.1rem;
  position: relative;
}

.followups li::before {
  content: "-";
  position: absolute;
  left: 0;
  color: var(--text-faint);
}

/* Footer */

footer {
  border-top: 1px solid var(--border-soft);
  padding: 3rem 0 4rem;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.footer__brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-faint);
}

.footer__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.85rem;
}

.footer__links a {
  text-decoration: none;
  color: var(--text-muted);
  transition: color 0.15s ease;
}

.footer__links a:hover,
.footer__links a:focus-visible {
  color: var(--accent);
}

/* Responsive */

@media (max-width: 720px) {
  .topnav {
    flex-wrap: wrap;
    row-gap: 0.75rem;
  }

  .topnav__links {
    order: 3;
    width: 100%;
    justify-content: space-between;
    gap: 0.5rem;
    font-size: 0.82rem;
  }

  .hero {
    padding: 4rem 0 3rem;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  section {
    padding: 3.5rem 0;
  }

  .phase {
    padding: 1.5rem;
  }

  .phase__head {
    flex-direction: column;
    gap: 0.75rem;
  }

  .arch-flow {
    flex-direction: column;
  }

  .arch-flow__arrow {
    transform: rotate(90deg);
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 420px) {
  .stats {
    grid-template-columns: 1fr;
  }
}