:root {
  --bg: #0b1014;
  --bg-raise: #12181e;
  --line: #24303a;
  --text: #f3f7f8;
  --muted: #b7c3cb;
  --cyan: #5ee7ee;
  --cyan-deep: #1aa8b8;
  --ink: #062126;
  --focus: #f3f7f8;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(900px 420px at 85% -10%, rgba(26, 168, 184, 0.18), transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "DejaVu Sans", sans-serif;
  font-size: 17px;
  line-height: 1.5;
}

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

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

a:hover { color: #bff7fa; }

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

.wrap {
  width: min(1040px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 2;
  background: #0b1014;
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.brand img {
  width: auto;
  height: 34px;
  object-fit: contain;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.nav a {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}

.nav a:hover { color: var(--cyan); }

.hero {
  padding: 64px 0 28px;
}

.kicker {
  margin: 0 0 10px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1, h2, h3 { letter-spacing: -0.03em; line-height: 1.15; }

h1 {
  margin: 0;
  max-width: 16ch;
  font-size: clamp(36px, 6vw, 58px);
  font-weight: 650;
}

.lede {
  max-width: 58ch;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 16px;
  font-weight: 650;
  text-decoration: none;
}

.btn-primary {
  background: var(--cyan);
  color: var(--ink);
}

.btn-primary:hover { background: #bff7fa; color: var(--ink); }

.btn-ghost {
  border-color: var(--line);
  color: var(--text);
}

.btn-ghost:hover { border-color: var(--cyan); color: var(--text); }

section { padding: 28px 0 12px; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 16px;
}

h2 {
  margin: 0;
  font-size: 28px;
}

.note { margin: 0; color: var(--muted); font-size: 15px; }

.edition {
  display: grid;
  gap: 18px 32px;
  padding: 28px;
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-radius: 18px;
}

@media (min-width: 800px) {
  .edition { grid-template-columns: 1.3fr 0.7fr; align-items: end; }
}

.edition h3 {
  margin: 6px 0 8px;
  font-size: 26px;
}

.meta {
  margin: 0;
  color: var(--muted);
}

.when {
  margin: 0;
  padding: 0;
  list-style: none;
}

.when li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  font-size: 15px;
}

.when strong { font-weight: 650; }

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.chips li {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 14px;
}

.poster {
  margin: 18px 0 8px;
  scroll-margin-top: 88px;
}

.poster img {
  width: 100%;
  height: auto;
  border-radius: 16px;
}

.cards {
  display: grid;
  gap: 16px;
  margin-top: 16px;
}

@media (min-width: 800px) {
  .cards { grid-template-columns: 1fr 1fr; }
}

.card {
  margin: 0;
  padding: 22px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 18px;
}

.card h3 { margin: 0 0 8px; font-size: 20px; }

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

.espera {
  color: var(--cyan);
  font-size: 15px;
  font-weight: 650;
}

.card p + .espera,
.card ul + .espera { margin-top: 12px; }

.card ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.people {
  display: grid;
  gap: 16px;
}

@media (min-width: 800px) {
  .people { grid-template-columns: 1fr 1fr; }
}

.person {
  padding: 22px;
  border-top: 2px solid var(--cyan-deep);
  background: var(--bg-raise);
  border-radius: 0 0 16px 16px;
}

.person h3 { margin: 0 0 8px; font-size: 20px; }

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

.person a { font-size: 15px; }

.quotes {
  display: grid;
  gap: 16px;
}

@media (min-width: 800px) {
  .quotes { grid-template-columns: 1fr 1fr 1fr; }
}

blockquote {
  margin: 0;
  padding: 20px;
  border-left: 2px solid var(--cyan-deep);
}

blockquote p { margin: 0 0 12px; }

blockquote footer {
  color: var(--muted);
  font-size: 14px;
}

.contact {
  display: flex;
  flex-wrap: wrap;
  gap: 18px 28px;
  align-items: center;
  padding-bottom: 20px;
}

.social {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.social a { color: var(--text); text-underline-offset: 3px; }

.site-footer {
  padding: 22px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer p { margin: 0; }

.syllabus h1 { max-width: 22ch; font-size: clamp(32px, 5vw, 46px); }

.syllabus table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0 8px;
  font-size: 15px;
}

.syllabus th,
.syllabus td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.syllabus th { color: var(--muted); font-weight: 650; }

.modules { margin: 0; padding-left: 20px; }

.modules li { margin: 0 0 10px; }

.modules li span { color: var(--muted); }