/* =====================================================================
   Cores e fontes — ajuste aqui
   ===================================================================== */
:root {
  --bg: #0a1220;           /* fundo principal */
  --bg-alt: #0d1626;       /* fundo das seções alternadas */
  --card: #121c2e;         /* cartões */
  --card-hover: #16233a;
  --line: rgba(148, 178, 214, .12);
  --text: #e6edf6;
  --muted: #8d9bb0;
  --accent: #22c7c9;       /* turquesa de destaque */
  --accent-2: #3be0c8;
  --accent-soft: rgba(34, 199, 201, .12);
  --green: #3ddc84;
  --gold: #ab9560;         /* dourado TUS (detalhes) */
  --nav-bg: rgba(10, 18, 32, .82);
  --menu-bg: rgba(10, 18, 32, .97);
  --deep: #08101c;         /* fundo do rodapé e dos financiadores */
  --glass: rgba(18, 28, 46, .75);
  --glow-1: #0f6f86;
  --glow-2: #1aa6a0;
  --on-accent: #04252a;    /* texto sobre botão turquesa */
  --staff: #d8c189;
  --blue: #8fb0ff;
  --ph-link: #e8d36a;
  --avatar-bg: linear-gradient(135deg, #0f5960, #123446);
  --shadow: rgba(0, 0, 0, .8);
  --radius: 14px;
  --head: "Plus Jakarta Sans", system-ui, sans-serif;
  --body: "DM Sans", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --max: 1140px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

/* ---------- modo claro (botão sol/lua no menu; o escuro é o padrão) ---------- */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f8fb;
  --bg-alt: #edf1f6;
  --card: #ffffff;
  --card-hover: #ffffff;
  --line: rgba(15, 40, 70, .12);
  --text: #0f1b2d;
  --muted: #566376;
  --accent: #0a7f81;       /* turquesa mais escuro para ler bem no branco */
  --accent-2: #0a9e8a;
  --accent-soft: rgba(10, 127, 129, .1);
  --green: #18803f;
  --nav-bg: rgba(246, 248, 251, .85);
  --menu-bg: rgba(246, 248, 251, .97);
  --deep: #e6ecf3;
  --glass: rgba(255, 255, 255, .8);
  --glow-1: #8fdcde;
  --glow-2: #a9ecdf;
  --on-accent: #ffffff;
  --staff: #7f6426;
  --blue: #3657c4;
  --ph-link: #a37f00;
  --avatar-bg: linear-gradient(135deg, #d6f0f0, #e4ecf6);
  --shadow: rgba(15, 40, 70, .22);
}
:root { color-scheme: dark; }
/* transição suave só no momento da troca */
.theme-anim, .theme-anim *, .theme-anim *::before, .theme-anim *::after { transition: background-color .4s, color .4s, border-color .4s, fill .4s !important; }

.theme-btn { flex: none; width: 38px; height: 38px; margin-left: 8px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--text); display: grid; place-items: center; cursor: pointer; font-size: 1.05rem; transition: border-color .2s, color .2s, transform .4s var(--ease); }
.theme-btn:hover { border-color: var(--accent); color: var(--accent); transform: rotate(25deg); }
.brand { order: 0; } #menu { order: 1; } .theme-btn { order: 2; } .nav-toggle { order: 3; }
.theme-btn .sun, :root[data-theme="light"] .theme-btn .moon { display: block; }
.theme-btn .moon, :root[data-theme="light"] .theme-btn .sun { display: none; }

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--bg); color: var(--text); font: 400 16px/1.65 var(--body); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { font-family: var(--head); line-height: 1.15; margin: 0; letter-spacing: -.02em; }
p { margin: 0; }
.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 900px; }
.muted { color: var(--muted); }
.center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
svg.i { width: 1em; height: 1em; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
mark.ph { background: #fff3b0; color: #5c4600; border-radius: 3px; padding: 0 3px; }

/* ---------- barra de progresso ---------- */
.progress { position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 60; }
.progress span { display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: linear-gradient(90deg, var(--accent), var(--accent-2)); }

/* ---------- navegação ---------- */
.nav { position: fixed; inset: 0 0 auto 0; z-index: 50; transition: background .3s, border-color .3s, backdrop-filter .3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: var(--nav-bg); backdrop-filter: blur(12px); border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand-name { font: 800 1.15rem var(--head); color: var(--text); letter-spacing: -.02em; }
.brand-sep { width: 1px; height: 18px; background: var(--muted); opacity: .5; }
.brand-tus { height: 22px; width: auto; }
#menu { margin-left: auto; display: flex; gap: 2px; }
#menu a { color: var(--muted); font-size: .9rem; font-weight: 500; padding: 6px 10px; border-radius: 8px; transition: color .2s, background .2s; }
#menu a:hover { color: var(--text); }
#menu a.active { color: var(--accent); background: var(--accent-soft); }
.nav-toggle { display: none; margin-left: auto; width: 42px; height: 42px; border: 1px solid var(--line); border-radius: 10px; background: transparent; flex-direction: column; justify-content: center; align-items: center; gap: 5px; cursor: pointer; }
.nav-toggle span:not(.sr-only) { width: 18px; height: 2px; background: var(--text); transition: .25s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1100px) {
  .theme-btn { margin-left: auto; }
  .nav-toggle { display: flex; margin-left: 8px; }
  #menu { position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; padding: 12px 16px 20px; background: var(--menu-bg); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); display: none; }
  #menu.open { display: flex; }
  #menu a { padding: 10px 12px; font-size: 1rem; }
  .nav { background: var(--nav-bg); backdrop-filter: blur(12px); }
}

/* ---------- hero ---------- */
.hero { position: relative; min-height: 100vh; min-height: 100svh; display: flex; align-items: center; padding: 110px 0 60px; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-bg .grid { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 64px 64px; mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%); -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%); opacity: .5; }
.glow { position: absolute; border-radius: 50%; filter: blur(90px); opacity: .35; }
.glow-1 { width: 520px; height: 520px; background: var(--glow-1); top: -120px; left: 10%; animation: float 16s ease-in-out infinite; }
.glow-2 { width: 420px; height: 420px; background: var(--glow-2); bottom: -140px; right: 8%; opacity: .2; animation: float 20s ease-in-out infinite reverse; }
@keyframes float { 50% { transform: translate(40px, 30px) scale(1.08); } }
#particles { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-inner { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero h1 { font-size: clamp(2.2rem, 5.6vw, 4rem); font-weight: 800; max-width: 900px; margin: 22px 0 18px; }
.hl { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-sub { color: var(--muted); max-width: 560px; font-size: 1.05rem; }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 99px; border: 1px solid rgba(34, 199, 201, .3); background: var(--accent-soft); color: var(--accent); font-size: .82rem; font-weight: 500; }


.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 36px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: .95rem; transition: transform .2s var(--ease), box-shadow .2s, background .2s, border-color .2s; }
.btn-primary { background: var(--accent); color: var(--on-accent); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px rgba(34, 199, 201, .7); }
.btn-outline { border: 1px solid rgba(34, 199, 201, .45); color: var(--accent); }
.btn-outline:hover { background: var(--accent-soft); transform: translateY(-2px); }
.scroll-cue { margin-top: 28px; color: var(--muted); font-size: 1.2rem; animation: bob 2s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(6px); } }

/* entrada do hero */
.hero-in { opacity: 0; transform: translateY(18px); animation: heroIn .9s var(--ease) forwards; animation-delay: calc(var(--d) * .12s + .1s); }
@keyframes heroIn { to { opacity: 1; transform: none; } }

/* ---------- seções ---------- */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 52px; }
.kicker { font: 600 .78rem var(--mono); letter-spacing: .2em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; }
.section-head h2 { font-size: clamp(1.8rem, 3.6vw, 2.5rem); font-weight: 800; margin-bottom: 12px; }
.section-head p:last-child { color: var(--muted); }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 920px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid-3 { grid-template-columns: 1fr; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; transition: transform .35s var(--ease), border-color .35s, background .35s, box-shadow .35s; }
.card:hover { transform: translateY(-4px); border-color: rgba(34, 199, 201, .35); background: var(--card-hover); box-shadow: 0 20px 40px -24px var(--shadow); }
.icon-box { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); font-size: 1.15rem; flex: none; }
.pillar h3 { font-size: 1.15rem; margin: 18px 0 10px; }
.pillar p { color: var(--muted); font-size: .92rem; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.tag { font-size: .72rem; padding: 3px 10px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); border: 1px solid rgba(34, 199, 201, .18); }


.meta { display: flex; gap: 14px; flex-wrap: wrap; color: var(--muted); font-size: .8rem; }
.meta span { display: inline-flex; align-items: center; gap: 5px; }

/* ---------- about ---------- */
.mission { margin: 0 auto 40px; max-width: 820px; text-align: center; padding: 30px 32px; border-radius: var(--radius); border: 1px solid rgba(34, 199, 201, .25); background: radial-gradient(ellipse at 50% 0%, rgba(34, 199, 201, .12), transparent 70%), var(--card); }
.mission p { font: 600 clamp(1.05rem, 2vw, 1.3rem)/1.5 var(--head); color: var(--text); letter-spacing: -.01em; margin-top: 6px; }
.about-card h3 { font-size: 1.1rem; margin-bottom: 10px; }
.about-card p { color: var(--muted); font-size: .9rem; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 24px 0 0; }
.facts div { border-top: 1px solid var(--line); padding-top: 14px; }
.facts dt { font: 600 .72rem var(--mono); letter-spacing: .14em; text-transform: uppercase; color: var(--accent); margin-bottom: 4px; }
.facts dd { margin: 0; color: var(--text); font-size: .9rem; }
@media (max-width: 820px) { .facts { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .facts { grid-template-columns: 1fr; } }

/* ---------- carrossel (3 por vez, rolagem lateral) ---------- */
.carousel { --gap: 18px; --per: 3; }
.track {
  display: grid; grid-auto-flow: column; gap: var(--gap);
  grid-auto-columns: calc((100% - (var(--per) - 1) * var(--gap)) / var(--per));
  overflow-x: auto; overscroll-behavior-x: contain; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  padding: 6px 2px 18px; scrollbar-width: thin; scrollbar-color: var(--accent) rgba(148, 178, 214, .1);
}
.track::-webkit-scrollbar { height: 6px; }
.track::-webkit-scrollbar-track { background: rgba(148, 178, 214, .1); border-radius: 99px; }
.track::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 99px; }
.track > * { scroll-snap-align: start; min-width: 0; }
.track > [hidden] { display: none; }
/* todas as caixas com a altura da maior (calculada no main.js, mesmo com filtro) */
.track { align-items: start; }
.track > .card { height: var(--card-h, auto); }
.track.dragging { scroll-snap-type: none; scroll-behavior: auto; cursor: grabbing; user-select: none; }
.carousel-bar { display: flex; justify-content: space-between; align-items: center; margin-top: 12px; gap: 12px; }
.carousel-count { font: 500 .8rem var(--mono); color: var(--muted); }
.carousel-btns { display: flex; gap: 8px; }
.arrow { width: 42px; height: 42px; border-radius: 50%; border: 1px solid rgba(34, 199, 201, .4); background: var(--card); color: var(--accent); display: grid; place-items: center; cursor: pointer; font-size: 1.05rem; transition: background .2s, opacity .2s, transform .2s var(--ease); }
.arrow:hover:not(:disabled) { background: var(--accent-soft); transform: translateY(-2px); }
.arrow:disabled { opacity: .3; cursor: default; }
@media (max-width: 920px) { .carousel { --per: 2; } }
@media (max-width: 620px) { .carousel { --per: 1; } .track { grid-auto-columns: 86%; } }

/* ---------- projetos ---------- */
.project { display: flex; flex-direction: column; }
.project h3 { font-size: 1.02rem; line-height: 1.35; margin: 14px 0 10px; }
.project .summary { color: var(--muted); font-size: .88rem; margin-bottom: 16px; }
.project .funder { display: flex; gap: 8px; align-items: flex-start; font-size: .82rem; color: var(--text); opacity: .85; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); }
.project .funder .i { color: var(--accent); margin-top: 3px; }
.project .note { font-size: .8rem; color: var(--green); margin: -8px 0 16px; }

/* ---------- financiadores ---------- */
.funders { padding: 56px 0 64px; border-top: 1px solid var(--line); background: var(--deep); }
.funder-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 22px; }
.funder-row > * { flex: 0 1 142px; min-width: 128px; }
/* caixas brancas nos dois modos: os logos oficiais são feitos para fundo claro */
.funder-tile { display: grid; place-items: center; min-height: 92px; padding: 16px 18px; border-radius: 12px; border: 1px solid var(--line); background: #fff; color: #3a4658; font-size: .85rem; font-weight: 600; text-align: center; transition: border-color .3s, transform .3s var(--ease), box-shadow .3s; }
.funder-tile:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 12px 24px -16px var(--shadow); }
.funder-tile img { max-height: 46px; max-width: 100%; width: auto; object-fit: contain; }

/* ---------- PI ---------- */
.pi { display: grid; grid-template-columns: 300px 1fr; gap: 40px; align-items: start; }
.pi-side .avatar { width: 112px; height: 112px; border-radius: 18px; font-size: 2rem; }
.pi-side h3 { font-size: 1.4rem; margin: 22px 0 4px; }
.pi-role { color: var(--accent); font-size: .92rem; }
.pi-loc { color: var(--muted); font-size: .85rem; display: flex; gap: 6px; align-items: center; margin-top: 8px; }
.pi-bio { color: var(--muted); font-size: .95rem; }
.edu-title { display: flex; gap: 8px; align-items: center; font: 700 1rem var(--head); margin: 28px 0 16px; color: var(--text); }
.edu-title .i { color: var(--accent); }
.edu { list-style: none; padding: 0; margin: 0; }
.edu li { display: grid; grid-template-columns: 100px 1fr; gap: 16px; padding: 12px 0; border-top: 1px solid var(--line); }
.edu .yr { font: 500 .8rem var(--mono); color: var(--accent); padding-top: 2px; }
.edu strong { display: block; font-size: .95rem; }
.edu .place { color: var(--muted); font-size: .85rem; }
.edu .note { color: var(--accent); font-size: .8rem; }
@media (max-width: 820px) { .pi { grid-template-columns: 1fr; gap: 24px; } }
@media (max-width: 480px) { .edu li { grid-template-columns: 1fr; gap: 2px; } }

.avatar { display: grid; place-items: center; border-radius: 12px; background: var(--avatar-bg); color: var(--accent); font: 800 1rem var(--head); border: 1px solid rgba(34, 199, 201, .3); object-fit: cover; }

/* ---------- equipe ---------- */
.member { display: flex; flex-direction: column; }
.member-top { display: flex; gap: 14px; align-items: center; margin-bottom: 14px; }
.member .avatar { width: 52px; height: 52px; flex: none; }
.member h3 { font-size: 1rem; }
.member .role { color: var(--accent); font-size: .84rem; margin-bottom: 10px; }
.member .interests { color: var(--muted); font-size: .86rem; }
.member .interests { margin-bottom: 14px; }
.member-links { display: flex; gap: 8px; margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); }
.member-links a { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--line); color: var(--text); opacity: .8; font-size: .95rem; transition: .2s; }
.member-links a:hover { border-color: var(--accent); color: var(--accent); opacity: 1; transform: translateY(-2px); }
.member-links .ph-link { border-color: var(--ph-link); color: var(--ph-link); opacity: .9; }
.status { display: inline-block; margin-top: 3px; font-size: .7rem; font-weight: 600; padding: 1px 9px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); }
.status-completed, .status-collab { background: rgba(61, 220, 132, .12); color: var(--green); }
.status-staff { background: rgba(171, 149, 96, .16); color: var(--staff); }
.status-msc { background: rgba(96, 140, 255, .14); color: var(--blue); }

/* ---------- publicações ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin-bottom: 28px; }
.chip { font: 500 .82rem var(--body); padding: 6px 14px; border-radius: 99px; border: 1px solid var(--line); background: var(--card); color: var(--muted); cursor: pointer; transition: .2s; }
.chip:hover { color: var(--text); border-color: rgba(34, 199, 201, .4); }
.chip.on { background: var(--accent); color: var(--on-accent); border-color: var(--accent); }
.pubs { list-style: none; margin: 0 0 36px; padding: 0; display: grid; gap: 10px; }
.pub { display: flex; gap: 14px; padding: 18px 22px; }
.pub .i { color: var(--accent); margin-top: 4px; }
.pub h3 { font: 600 .95rem/1.4 var(--body); letter-spacing: 0; }
.pub h3 a { color: var(--text); }
.pub h3 a:hover { color: var(--accent); }
.pub .authors { color: var(--muted); font-size: .84rem; margin: 3px 0 6px; }
.pub .meta em { color: var(--accent); opacity: .85; }
.badge { font: 600 .68rem var(--mono); padding: 1px 8px; border-radius: 5px; }
.badge-year { background: var(--accent-soft); color: var(--accent); }
.badge-journal { background: rgba(61, 220, 132, .12); color: var(--green); }
.badge-conference { background: rgba(96, 140, 255, .14); color: var(--blue); }
.badge-in-press { background: rgba(171, 149, 96, .16); color: var(--staff); }
.pub.hide { display: none; }

/* ---------- notícias ---------- */
.news time { font: 500 .78rem var(--mono); color: var(--muted); }
.news h3 { font-size: 1.05rem; margin: 10px 0 8px; }
.news p { color: var(--muted); font-size: .9rem; }
.news a.more { display: inline-flex; gap: 6px; align-items: center; margin-top: 14px; font-weight: 600; font-size: .88rem; }

/* ---------- chamada ---------- */
.cta { text-align: center; padding: 60px 28px; border-radius: 20px; border: 1px solid rgba(34, 199, 201, .25); background: radial-gradient(ellipse at 20% 0%, rgba(34, 199, 201, .14), transparent 60%), var(--card); position: relative; overflow: hidden; }
.cta h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); font-weight: 800; margin: 18px 0 14px; }
.cta p { color: var(--muted); max-width: 560px; margin: 0 auto 28px; }

/* ---------- rodapé ---------- */
.footer { border-top: 1px solid var(--line); padding: 48px 0 28px; background: var(--deep); }
.footer-inner { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.footer .muted { font-size: .85rem; margin-top: 6px; }
.footer-right { text-align: right; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; justify-content: flex-end; font-size: .88rem; }
.footer-links a, #footer-email { color: var(--muted); display: inline-flex; gap: 6px; align-items: center; font-size: .85rem; }
.footer-links a:hover, #footer-email:hover { color: var(--accent); }
.footer-right p + p { margin-top: 12px; }
.copyright { text-align: center; color: var(--muted); font-size: .78rem; margin-top: 36px; opacity: .7; }
@media (max-width: 640px) { .footer-right { text-align: left; } .footer-links { justify-content: flex-start; } }

/* ---------- animações de rolagem ---------- */
.reveal, .stagger > * { opacity: 0; transform: translateY(28px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.in, .stagger > .in { opacity: 1; transform: none; }
.stagger > * { transition-delay: calc(var(--i, 0) * 90ms); }
.stagger > .in:hover { transition-delay: 0s; }
.pubs .pub { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease), transform .6s var(--ease), border-color .35s, background .35s; }
.pubs .pub.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .stagger > *, .pubs .pub, .hero-in { opacity: 1 !important; transform: none !important; }
}
@media (max-width: 640px) {
  .container { padding: 0 16px; }
  .section { padding: 80px 0; }
}