:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: #0d1b2f;
  --bg-card: rgba(15, 34, 55, 0.72);
  --text: #eef7ff;
  --muted: #a9bdd2;
  --line: rgba(172, 219, 255, 0.18);
  --blue: #60d5ff;
  --green: #72f2b3;
  --yellow: #ffe28a;
  --pink: #ff8fd4;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --shell: min(1120px, calc(100% - 32px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(96, 213, 255, 0.22), transparent 32rem),
    radial-gradient(circle at 80% 5%, rgba(114, 242, 179, 0.18), transparent 28rem),
    radial-gradient(circle at 50% 60%, rgba(255, 143, 212, 0.10), transparent 34rem),
    var(--bg);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
}

::selection {
  color: #03111b;
  background: var(--green);
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 20;
  padding: 10px 14px;
  border-radius: 999px;
  color: #03111b;
  background: var(--green);
  font-weight: 800;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

.site-shell {
  width: var(--shell);
  margin-inline: auto;
}

a {
  color: inherit;
}

.hero {
  position: relative;
  padding-block: 24px 72px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(4, 13, 25, 0.55);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 46px;
  height: 46px;
  place-items: center;
  border-radius: 50%;
  color: #04111d;
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-weight: 950;
  box-shadow: 0 0 34px rgba(96, 213, 255, 0.35);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-size: 0.98rem;
  letter-spacing: -0.02em;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
}

.nav-links a {
  padding: 10px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: clamp(28px, 6vw, 72px);
  align-items: center;
  padding-top: clamp(52px, 9vw, 104px);
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(2.75rem, 8vw, 6.6rem);
  line-height: 0.92;
  letter-spacing: -0.075em;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(2rem, 4.8vw, 4rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.28rem;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.hero-text {
  max-width: 690px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1.06rem, 2vw, 1.28rem);
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button-primary {
  color: #04111d;
  background: linear-gradient(135deg, var(--green), var(--blue));
  box-shadow: 0 16px 44px rgba(96, 213, 255, 0.24);
}

.button-ghost {
  color: var(--text);
  background: rgba(255, 255, 255, 0.045);
}

.lab-card {
  position: relative;
  min-height: clamp(340px, 46vw, 560px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 50%, rgba(114, 242, 179, 0.24), transparent 12rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.025));
  box-shadow: var(--shadow);
  isolation: isolate;
}

.lab-card::before,
.lab-card::after {
  content: "";
  position: absolute;
  inset: 30px;
  border-radius: 50%;
  border: 1px dashed rgba(238, 247, 255, 0.14);
}

.lab-card::after {
  inset: 74px;
  border-style: solid;
  border-color: rgba(96, 213, 255, 0.16);
}

.orbit,
.core,
.signal {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.orbit {
  width: 72%;
  aspect-ratio: 1;
  border: 2px solid rgba(96, 213, 255, 0.34);
  border-radius: 50%;
}

.orbit-one {
  transform: translate(-50%, -50%) rotate(18deg) scaleX(1.35) scaleY(0.5);
}

.orbit-two {
  border-color: rgba(114, 242, 179, 0.34);
  transform: translate(-50%, -50%) rotate(-42deg) scaleX(1.2) scaleY(0.46);
}

.orbit-three {
  border-color: rgba(255, 226, 138, 0.28);
  transform: translate(-50%, -50%) rotate(82deg) scaleX(1.15) scaleY(0.48);
}

.core {
  display: grid;
  width: 150px;
  height: 150px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 42px;
  background: rgba(3, 17, 27, 0.82);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.08),
    0 0 80px rgba(96, 213, 255, 0.36);
}

.core span {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--yellow));
  box-shadow: 0 0 44px rgba(255, 226, 138, 0.35);
}

.core strong {
  font-size: 1.35rem;
  letter-spacing: 0.18em;
}

.signal {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 28px var(--green);
}

.signal-a {
  transform: translate(128px, -168px);
}

.signal-b {
  transform: translate(-180px, 58px);
  background: var(--blue);
  box-shadow: 0 0 28px var(--blue);
}

.signal-c {
  transform: translate(170px, 142px);
  background: var(--yellow);
  box-shadow: 0 0 28px var(--yellow);
}

.section {
  padding-block: clamp(52px, 8vw, 92px);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.06rem;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.58fr);
  gap: 24px;
  align-items: end;
  max-width: none;
}

.intro-grid,
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.glass-card,
.project-card,
.mission-card,
.timeline li {
  border: 1px solid var(--line);
  background: var(--bg-card);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.glass-card,
.project-card {
  border-radius: var(--radius-md);
  padding: 24px;
}

.glass-card p,
.project-card p,
.mission-card p,
.timeline p,
.site-footer p {
  color: var(--muted);
}

.wide-card {
  grid-column: span 3;
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 24px;
  align-items: center;
  min-height: 180px;
  background:
    linear-gradient(135deg, rgba(96, 213, 255, 0.18), rgba(114, 242, 179, 0.08)),
    var(--bg-card);
}

.wide-card h3 {
  margin-bottom: 0;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
}

.card-number {
  display: inline-grid;
  width: 44px;
  height: 44px;
  margin-bottom: 34px;
  place-items: center;
  border-radius: 15px;
  color: #03111b;
  background: var(--yellow);
  font-weight: 950;
}

.project-card {
  position: relative;
  min-height: 340px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  text-decoration: none;
}

.project-card::before {
  content: "";
  position: absolute;
  right: -70px;
  top: -70px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(96, 213, 255, 0.14);
}

.featured-project {
  grid-column: span 2;
  background:
    radial-gradient(circle at top right, rgba(114, 242, 179, 0.24), transparent 18rem),
    linear-gradient(145deg, rgba(96, 213, 255, 0.15), rgba(255, 255, 255, 0.035));
}

.project-card h3 {
  margin-top: auto;
  font-size: clamp(1.85rem, 4vw, 3.9rem);
}

.project-topline {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 80px;
}

.project-tag,
.project-year {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-link {
  margin-top: 16px;
  color: var(--green);
  font-weight: 950;
}

.project-link::after {
  content: " →";
}

.disabled {
  color: rgba(169, 189, 210, 0.78);
}

.disabled::after {
  content: "";
}

.project-card:hover,
.project-card:focus-visible {
  border-color: rgba(114, 242, 179, 0.55);
  transform: translateY(-3px);
  outline: none;
}

.project-card {
  transition: transform 180ms ease, border-color 180ms ease;
}

.method-band {
  padding-block: clamp(60px, 8vw, 96px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.035), rgba(255, 255, 255, 0.015)),
    rgba(3, 17, 27, 0.45);
  border-block: 1px solid var(--line);
}

.method-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 64px);
  align-items: start;
}

.timeline {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.timeline li {
  position: relative;
  border-radius: var(--radius-md);
  padding: 22px 22px 22px 82px;
}

.timeline li::before {
  counter-increment: steps;
  content: counter(steps);
  position: absolute;
  left: 22px;
  top: 22px;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  color: #03111b;
  background: linear-gradient(135deg, var(--green), var(--blue));
  font-weight: 950;
}

.timeline span {
  display: block;
  margin-bottom: 3px;
  color: var(--green);
  font-size: 0.75rem;
  font-weight: 950;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.timeline strong {
  display: block;
  margin-bottom: 5px;
  font-size: 1.2rem;
}

.timeline p {
  margin-bottom: 0;
}

.mission-card {
  display: grid;
  grid-template-columns: 1fr 0.84fr;
  gap: 28px;
  align-items: end;
  border-radius: var(--radius-lg);
  padding: clamp(26px, 5vw, 56px);
  background:
    radial-gradient(circle at top left, rgba(255, 226, 138, 0.18), transparent 22rem),
    radial-gradient(circle at bottom right, rgba(255, 143, 212, 0.16), transparent 24rem),
    var(--bg-card);
}

.mission-card p:last-child {
  margin-bottom: 0;
  font-size: 1.08rem;
}

.site-footer {
  padding-block: 34px;
  border-top: 1px solid var(--line);
  background: rgba(3, 17, 27, 0.55);
}

.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
}

.footer-grid p {
  margin-bottom: 0;
}

/* Página básica do Snake CESD */
.simple-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.simple-card {
  width: min(860px, 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 6vw, 64px);
  background:
    radial-gradient(circle at top right, rgba(114, 242, 179, 0.18), transparent 18rem),
    var(--bg-card);
  box-shadow: var(--shadow);
}

.pixel-snake {
  display: grid;
  grid-template-columns: repeat(9, 18px);
  gap: 6px;
  margin-bottom: 28px;
}

.pixel-snake span {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
}

.pixel-snake .snake-body {
  background: var(--green);
  box-shadow: 0 0 18px rgba(114, 242, 179, 0.42);
}

.pixel-snake .snake-food {
  background: var(--pink);
  box-shadow: 0 0 18px rgba(255, 143, 212, 0.42);
}

.simple-card h1 {
  max-width: 720px;
  font-size: clamp(2.4rem, 9vw, 5.2rem);
}

.simple-card p {
  max-width: 660px;
  color: var(--muted);
  font-size: 1.08rem;
}

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

@media (max-width: 860px) {
  .topbar,
  .footer-grid {
    align-items: flex-start;
    border-radius: var(--radius-md);
    flex-direction: column;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .hero-grid,
  .split-heading,
  .method-grid,
  .mission-card,
  .wide-card {
    grid-template-columns: 1fr;
  }

  .intro-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .wide-card,
  .featured-project {
    grid-column: auto;
  }

  .project-card {
    min-height: 300px;
  }

  .project-topline {
    margin-bottom: 58px;
  }
}

@media (max-width: 520px) {
  :root {
    --shell: min(100% - 22px, 1120px);
  }

  .hero {
    padding-top: 12px;
  }

  .brand small {
    font-size: 0.72rem;
  }

  .nav-links a {
    padding-inline: 10px;
  }

  .lab-card {
    min-height: 320px;
  }

  .core {
    width: 120px;
    height: 120px;
    border-radius: 34px;
  }

  .signal-a {
    transform: translate(92px, -116px);
  }

  .signal-b {
    transform: translate(-118px, 50px);
  }

  .signal-c {
    transform: translate(110px, 108px);
  }

  .timeline li {
    padding-left: 22px;
    padding-top: 80px;
  }

  .pixel-snake {
    grid-template-columns: repeat(9, 14px);
    gap: 5px;
  }

  .pixel-snake span {
    width: 14px;
    height: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}