:root {
  --display: 'Bricolage Grotesque', 'Segoe UI', system-ui, sans-serif;
  --body: 'Instrument Sans', 'Segoe UI', system-ui, sans-serif;
  --max: 1180px
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 64px
}

body {
  font-family: var(--body);
  line-height: 1.65;
  font-size: 17px;
  background: #081a4d;
  color: #e8efff;
  -webkit-font-smoothing: antialiased
}

a {
  color: inherit
}

:focus-visible {
  outline: 3px solid var(--accent, #ffc72c);
  outline-offset: 3px
}

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

/* Cores do Alcina: azul de base, amarelo e vermelho de destaque */
.sec {
  --bg: #081a4d;
  --fg: #e8efff;
  --mut: #b8c7f0;
  --line: rgba(255, 255, 255, .16);
  --card: rgba(255, 255, 255, .06);
  --accent: #ffc72c;
  background: var(--bg);
  color: var(--fg);
  padding: 120px 24px;
  position: relative
}

#sobre,
#segundos {
  --bg: #0c2b80
}

#contato {
  --bg: #061238;
  padding: 80px 24px 40px
}

.wrap {
  max-width: var(--max);
  margin: 0 auto
}

h1,
h2,
h3 {
  font-family: var(--display);
  line-height: 1.02;
  letter-spacing: -.02em
}

h2 {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  font-weight: 800;
  max-width: 14ch
}

.lead {
  color: var(--mut);
  max-width: 52ch;
  margin-top: 20px
}

/* Navegação */
nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: rgba(6, 18, 56, .85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, .1)
}

.logo {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.25rem;
  text-decoration: none;
  color: #fff;
  display: flex;
  gap: 10px;
  align-items: center
}

.logo i {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: #ffc72c;
  color: #0a2263;
  box-shadow: 3px 3px 0 #e63329;
  display: grid;
  place-items: center;
  font: 700 .8rem ui-monospace, Consolas, monospace;
  font-style: normal
}

nav ul {
  display: flex;
  gap: 6px;
  list-style: none
}

nav ul a {
  text-decoration: none;
  color: #cbd8f7;
  padding: 8px 14px;
  border-radius: 99px;
  font-size: .95rem;
  font-weight: 500;
  transition: .2s
}

nav ul a:hover,
nav ul a.on {
  background: rgba(255, 255, 255, .12);
  color: #fff
}

.burger {
  display: none;
  background: none;
  border: 1px solid rgba(255, 255, 255, .3);
  color: #fff;
  border-radius: 8px;
  padding: 6px 12px;
  font: inherit;
  cursor: pointer
}

.bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  background: var(--nav, #ffc72c);
  z-index: 60;
  transition: background .5s
}

/* Hero */
#inicio {
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding-top: 110px;
  overflow: hidden;
  background: radial-gradient(900px 600px at 85% 20%, #1d4ad0 0, transparent 70%), #081a4d
}

.big {
  position: absolute;
  right: -2vw;
  bottom: -6vw;
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(14rem, 38vw, 34rem);
  line-height: .8;
  color: transparent;
  -webkit-text-stroke: 2px rgba(255, 199, 44, .3);
  user-select: none;
  pointer-events: none
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
  position: relative
}

#inicio h1 {
  font-size: clamp(3.4rem, 10.5vw, 8.6rem);
  font-weight: 800;
  color: #fff
}

#inicio h1 span {
  display: block;
  font-size: .34em;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0;
  margin-top: 14px
}

.hero p {
  color: var(--mut);
  max-width: 44ch;
  margin: 28px 0 36px;
  font-size: 1.12rem
}

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

.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  padding: 14px 26px;
  border-radius: 6px;
  background: var(--accent);
  color: #06122e;
  transition: transform .2s, box-shadow .2s;
  border: 2px solid var(--accent);
  cursor: pointer;
  font: inherit;
  font-weight: 600
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 0 #e63329
}

.btn.ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, .4)
}

.term {
  background: #0a2263;
  border: 1px solid rgba(255, 199, 44, .4);
  border-radius: 10px;
  box-shadow: 14px 14px 0 #e63329;
  font-family: ui-monospace, Consolas, monospace;
  font-size: .95rem
}

.term b {
  display: flex;
  gap: 7px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, .1)
}

.term b i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2c4590
}

.term pre {
  padding: 20px;
  color: #d6e2ff;
  white-space: pre-wrap;
  min-height: 210px
}

.term .k {
  color: #ffc72c
}

.term .s {
  color: #ff8a7e
}

.term .c {
  color: #6e83bf
}

.cur {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  background: #ffc72c;
  vertical-align: -3px;
  animation: bl 1s steps(2) infinite
}

@keyframes bl {
  50% {
    opacity: 0
  }
}

/* Sobre */
.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start
}

.about p+p {
  margin-top: 18px
}

.about p {
  color: var(--mut);
  font-size: 1.08rem
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 56px;
  border-top: 1px solid var(--line)
}

.stats div {
  padding: 26px 20px 0 0
}

.stats strong {
  display: block;
  font-family: var(--display);
  font-size: clamp(2.6rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1
}

.stats span {
  color: var(--mut);
  font-size: .95rem
}

.pillars {
  display: grid;
  gap: 0
}

.pillars div {
  padding: 26px 0;
  border-bottom: 1px solid var(--line)
}

.pillars div:first-child {
  padding-top: 0
}

.pillars h3 {
  font-size: 1.5rem;
  margin-bottom: 6px
}

.pillars p {
  font-size: 1rem
}

/* Turmas e projetos */
.head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 48px
}

.tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap
}

.tab {
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--fg);
  border: 2px solid var(--line);
  padding: 12px 20px;
  border-radius: 6px;
  text-align: left;
  transition: .2s
}

.tab small {
  display: block;
  font-weight: 400;
  color: var(--mut);
  font-size: .82rem
}

.tab:hover {
  border-color: var(--accent)
}

.tab[aria-selected=true] {
  background: var(--accent);
  border-color: var(--accent);
  color: #06122e
}

.tab[aria-selected=true] small {
  color: inherit;
  opacity: .8
}

.search {
  width: 100%;
  max-width: 340px;
  font: inherit;
  padding: 12px 16px;
  border-radius: 6px;
  border: 2px solid var(--line);
  background: var(--card);
  color: var(--fg);
  margin-bottom: 28px
}

.search::placeholder {
  color: var(--mut)
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px
}

.proj {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 6px solid var(--accent);
  border-radius: 4px 18px 4px 18px;
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 210px;
  transition: transform .25s, border-color .25s
}

.proj[hidden],
.empty[hidden] {
  display: none
}

.proj-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 4px 12px 4px 12px;
  background: var(--bg)
}

.proj:nth-child(3n+2) {
  border-radius: 18px 4px 18px 4px;
  border-left-color: #ff4b3e
}

.proj:nth-child(3n) {
  border-left-color: #7da2ff
}

.proj:hover {
  transform: translateY(-6px)
}

.proj em {
  font-style: normal;
  font-size: .85rem;
  color: var(--mut)
}

.proj h3 {
  font-size: 1.4rem;
  line-height: 1.12
}

.proj p {
  color: var(--mut);
  font-size: .96rem;
  flex: 1
}

.proj .description {
  min-height: 4.8em
}

.proj .students {
  color: var(--mut);
  font-size: .85rem
}

.proj a {
  font-weight: 600;
  text-decoration: none;
  color: #fff;
  border-bottom: 2px solid currentColor;
  align-self: flex-start;
  padding-bottom: 1px
}

.empty {
  grid-column: 1/-1;
  color: var(--mut);
  padding: 30px 0
}

.count {
  color: var(--mut);
  margin-bottom: 18px;
  font-weight: 500
}

/* Edições */
.eds {
  list-style: none;
  margin-top: 20px;
  border-top: 1px solid var(--line)
}

.eds li {
  border-bottom: 1px solid var(--line)
}

.eds a {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 24px;
  align-items: baseline;
  padding: 26px 8px;
  text-decoration: none;
  transition: padding .25s, background .25s
}

.eds a:hover {
  background: rgba(143, 184, 255, .1);
  padding-left: 24px
}

.eds b {
  font-family: var(--display);
  font-size: 2.4rem;
  color: var(--accent);
  font-weight: 800;
  line-height: 1
}

.eds strong {
  font-family: var(--display);
  font-size: 1.5rem
}

.eds span {
  color: var(--mut);
  font-size: .95rem
}

.eds .sp b {
  font-size: 1.5rem;
  color: #ff6a5e
}

/* Rodapé */
.foot {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px
}

.foot h3 {
  font-size: 1.1rem;
  margin-bottom: 12px
}

.foot p,
.foot a {
  color: #9fb0d6;
  font-size: .98rem
}

.foot a:hover {
  color: #fff
}

.copy {
  max-width: var(--max);
  margin: 56px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  color: #6e83bf;
  font-size: .9rem
}

.stripe {
  height: 7px;
  background: linear-gradient(90deg, #2f63f0 0 34%, #e63329 34% 67%, #ffc72c 67%)
}

/* Revelação única, só no que importa */
.rv {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s, transform .7s
}

.rv.in {
  opacity: 1;
  transform: none
}

@media(max-width:860px) {

  .hero,
  .about,
  .foot {
    grid-template-columns: 1fr;
    gap: 40px
  }

  .sec {
    padding: 84px 20px
  }

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

  .burger {
    display: block
  }

  nav ul {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: #081a4d;
    padding: 12px 20px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, .15)
  }

  nav ul.open {
    display: flex
  }

  .eds a {
    grid-template-columns: 70px 1fr;
    gap: 12px
  }

  .eds span {
    grid-column: 2
  }

  .eds b {
    font-size: 1.8rem
  }

  .stats {
    grid-template-columns: 1fr 1fr 1fr
  }
}

@media(max-width:560px) {
  .grid {
    grid-template-columns: 1fr
  }
}

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

  .rv {
    opacity: 1;
    transform: none
  }
}