:root {
  --bg: #0b0c0e;
  --bg-2: #121418;
  --ink: #ece8e1;
  --muted: #9a958c;
  --line: rgba(236, 232, 225, 0.12);
  --amber: #e8b86d;
  --amber-dim: rgba(232, 184, 109, 0.16);
  --danger: #e8a0a0;
  --ok: #b8d4b8;
  --header-h: 4.5rem;
  --wrap: 70rem;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.6;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  min-height: 100vh;
  background-image:
    linear-gradient(rgba(236, 232, 225, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(236, 232, 225, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
}

h1, h2, h3 {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.15;
}

h1 { font-size: clamp(2.4rem, 5.4vw, 4.1rem); margin: 0 0 0.75rem; }
h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); margin: 0; }
h3 { font-size: 1.35rem; margin: 0 0 0.45rem; }

a { color: var(--amber); }

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

.sy-skip {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 20;
  background: var(--amber);
  color: #111;
  padding: 0.4rem 0.75rem;
  text-decoration: none;
}

.sy-skip:focus {
  top: 0.75rem;
}

.sy-wrap {
  width: min(var(--wrap), calc(100% - 2.5rem));
  margin: 0 auto;
}

.sy-header {
  position: sticky;
  top: 0;
  z-index: 10;
  height: var(--header-h);
  backdrop-filter: blur(16px);
  background: rgba(11, 12, 14, 0.78);
  border-bottom: 1px solid var(--line);
}

.sy-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.sy-brand {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 1.45rem;
  color: var(--ink);
  text-decoration: none;
}

.sy-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.sy-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

.sy-nav a.is-active,
.sy-nav a:hover {
  color: var(--ink);
}

.sy-nav-cta {
  color: var(--bg) !important;
  background: var(--amber);
  padding: 0.45rem 0.9rem;
}

.sy-nav-cta:hover,
.sy-nav-cta.is-active {
  filter: brightness(1.08);
}

.sy-hero {
  padding: 4.5rem 0 5rem;
}

.sy-hero-compact {
  padding: 3rem 0 1.25rem;
}

.sy-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(16rem, 0.85fr);
  gap: 3.5rem;
  align-items: center;
}

.sy-kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--amber);
  margin: 0 0 1rem;
}

.sy-lead {
  font-size: 1.05rem;
  margin: 0 0 1.1rem;
  color: var(--ink);
}

.sy-intro {
  max-width: 38rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
}

.sy-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.sy-hero-visual {
  min-height: 22rem;
}

.sy-orbit {
  position: relative;
  height: 22rem;
}

.sy-orbit-frame {
  position: absolute;
  border: 1px solid var(--line);
}

.sy-orbit-frame-a {
  inset: 8% 12% 18% 8%;
}

.sy-orbit-frame-b {
  inset: 22% 4% 8% 28%;
  border-color: var(--amber-dim);
}

.sy-orbit-frame-c {
  width: 5.5rem;
  height: 5.5rem;
  right: 18%;
  top: 14%;
  background: var(--amber-dim);
  border-color: var(--amber);
}

.sy-orbit-node {
  position: absolute;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--amber);
}

.sy-orbit-node-1 { top: 18%; left: 22%; }
.sy-orbit-node-2 { bottom: 22%; right: 16%; }
.sy-orbit-node-3 { top: 48%; left: 58%; background: var(--ink); }

.sy-orbit-label {
  position: absolute;
  left: 12%;
  bottom: 12%;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.sy-section {
  padding: 0 0 5.5rem;
}

.sy-section-head {
  max-width: 36rem;
  margin-bottom: 2.25rem;
}

.sy-section-head h2 {
  margin-top: 0.35rem;
}

.sy-caps {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: auto auto;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.sy-cap {
  background: var(--bg-2);
  padding: 1.6rem 1.5rem 1.7rem;
  margin: 0;
  transition: background 0.2s ease;
}

.sy-cap:hover {
  background: #171a20;
}

.sy-cap-lead {
  grid-row: span 2;
  padding: 2.1rem 1.8rem;
  background:
    linear-gradient(160deg, var(--amber-dim), transparent 42%),
    var(--bg-2);
}

.sy-cap p {
  margin: 0;
  color: var(--muted);
}

.sy-section-method {
  padding-top: 0.5rem;
}

.sy-method {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.sy-method-n {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  color: var(--amber);
  margin-bottom: 0.85rem;
}

.sy-method p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.sy-cta {
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding: 3.5rem 0;
}

.sy-cta-inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
}

.sy-cta p:last-of-type {
  color: var(--muted);
  max-width: 34rem;
  margin-bottom: 0;
}

.sy-btn {
  display: inline-block;
  background: var(--amber);
  color: #14110c;
  text-decoration: none;
  border: 0;
  padding: 0.75rem 1.2rem;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.sy-btn:hover {
  filter: brightness(1.06);
}

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

.sy-footer {
  padding: 2.25rem 0 2.75rem;
  color: var(--muted);
  font-size: 0.92rem;
  border-top: 1px solid var(--line);
}

.sy-footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.sy-footer-brand {
  font-family: "Instrument Serif", Georgia, serif;
  color: var(--ink);
  font-size: 1.15rem;
  margin: 0 0 0.2rem;
}

.sy-footer p { margin: 0; }

.sy-footer-note { max-width: 22rem; }

.sy-contact-hero h1 { max-width: 16ch; }

.sy-form-layout {
  display: grid;
  grid-template-columns: minmax(12rem, 0.7fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.sy-form-aside {
  color: var(--muted);
  padding-top: 0.35rem;
}

.sy-form-wrap { max-width: 32rem; }

.sy-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}

.sy-field label { font-size: 0.92rem; }

.sy-field input,
.sy-field textarea {
  font: inherit;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--bg-2);
  color: var(--ink);
  border-radius: 0;
}

.sy-field input:hover,
.sy-field textarea:hover {
  border-color: rgba(232, 184, 109, 0.35);
}

.sy-opcional { color: var(--muted); font-weight: 400; }
.sy-val { color: var(--danger); font-size: 0.88rem; }

.sy-alert {
  padding: 0.9rem 1rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--line);
}

.sy-alert-ok {
  color: var(--ok);
  background: rgba(184, 212, 184, 0.08);
}

.sy-alert-error {
  color: var(--danger);
  background: rgba(232, 160, 160, 0.08);
}

@media (max-width: 860px) {
  .sy-hero-grid,
  .sy-caps,
  .sy-method,
  .sy-cta-inner,
  .sy-form-layout {
    grid-template-columns: 1fr;
  }

  .sy-cap-lead { grid-row: auto; }
  .sy-hero-visual { min-height: 16rem; }
  .sy-orbit { height: 16rem; }
  .sy-cta-inner { align-items: flex-start; flex-direction: column; }
}