/* ==========================================================================
   I SAES — Semana Acadêmica de Engenharia de Software · UFNT
   Sistema de design: estrutura "Modal" (terminal, hairlines, superfícies em
   camadas) com a paleta da logo (azul engrenagem, verde e laranja circuito).
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  /* Cores da marca (extraídas da logo) */
  --brand-blue: #0091dc;
  --brand-green: #0e7b50;
  --brand-orange: #f9a10a;

  /* Tipografia */
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-body: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --text-caption: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: clamp(1.0625rem, 1rem + 0.3vw, 1.25rem);
  --text-h3: clamp(1.25rem, 1.15rem + 0.5vw, 1.5rem);
  --text-h2: clamp(1.75rem, 1.4rem + 1.6vw, 2.625rem);
  --text-h1: clamp(2.25rem, 1.5rem + 3.2vw, 3.875rem);

  /* Espaçamento (base 4px) */
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px; --s-5: 20px; --s-6: 24px;
  --s-8: 32px; --s-10: 40px; --s-12: 48px; --s-16: 64px; --s-20: 80px; --s-24: 96px;

  /* Forma */
  --radius-card: 8px;
  --radius-btn: 12px;
  --radius-input: 8px;
  --radius-window: 14px;
  --radius-pill: 9999px;

  --page-max: 1280px;
  --gutter: clamp(16px, 4vw, 32px);
  --nav-h: 64px;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --t: 300ms var(--ease);
}

/* Tema escuro (padrão) */
:root,
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #070b10;
  --surface: #0d141b;
  --surface-2: #131c26;
  --line: #223142;
  --line-soft: #162230;
  --text: #e8f3fb;
  --body: #93a9bb;
  --muted: #7188a0;
  --eyebrow: #8cc8ee;
  --accent: #1fa3f0;
  --accent-hover: #4ab9fa;
  --on-accent: #031521;
  --green: #35c48a;
  --orange: #f7a51b;
  --orange-text: #f7b13f;
  --nav-bg: rgba(13, 20, 27, 0.78);
  --nav-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.35), 0 4px 6px -4px rgba(0, 0, 0, 0.35);
  --glow: radial-gradient(closest-side, rgba(31, 163, 240, 0.28), rgba(31, 163, 240, 0) 70%);
  --logo-ring: rgba(31, 163, 240, 0.35);
  --focus: #6cc8fb;
}

/* Tema claro */
:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f7fa;
  --surface: #ffffff;
  --surface-2: #e9f0f6;
  --line: #c9d8e4;
  --line-soft: #dce7ef;
  --text: #0a1a27;
  --body: #44596b;
  --muted: #587084;
  --eyebrow: #0a6aa8;
  --accent: #0a79bf;
  --accent-hover: #0868a4;
  --on-accent: #ffffff;
  --green: #0e7b50;
  --orange: #f59e0b;
  --orange-text: #9a5a00;
  --nav-bg: rgba(255, 255, 255, 0.82);
  --nav-shadow: 0 10px 15px -3px rgba(10, 26, 39, 0.08), 0 4px 6px -4px rgba(10, 26, 39, 0.08);
  --glow: radial-gradient(closest-side, rgba(0, 145, 220, 0.2), rgba(0, 145, 220, 0) 70%);
  --logo-ring: rgba(10, 121, 191, 0.3);
  --focus: #0a79bf;
}

/* ---------- 2. Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--body);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color var(--t), color var(--t);
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-feature-settings: "ss01";
  text-wrap: balance;
}
h1 { font-size: var(--text-h1); line-height: 1.04; }
h2 { font-size: var(--text-h2); line-height: 1.1; }
h3 { font-size: var(--text-h3); line-height: 1.25; }
p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration-color: color-mix(in srgb, currentColor 40%, transparent); text-underline-offset: 3px; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
::selection { background: color-mix(in srgb, var(--accent) 35%, transparent); color: var(--text); }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: absolute; left: var(--s-4); top: -100px; z-index: 100;
  background: var(--accent); color: var(--on-accent);
  padding: var(--s-2) var(--s-4); border-radius: var(--radius-btn); font-weight: 500;
}
.skip-link:focus { top: var(--s-4); }

.sr-only {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.container { width: 100%; max-width: var(--page-max); margin-inline: auto; padding-inline: var(--gutter); }

.icon { width: 20px; height: 20px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- 3. Navegação ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  min-height: var(--nav-h);
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  backdrop-filter: blur(10px) saturate(160%);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--nav-shadow);
}
.nav { display: flex; align-items: center; gap: var(--s-6); min-height: var(--nav-h); }
.brand { display: inline-flex; align-items: center; gap: var(--s-3); text-decoration: none; color: var(--text); }
.brand img { width: 38px; height: 38px; }
.brand-text { font-family: var(--font-display); font-weight: 500; font-size: 1.125rem; letter-spacing: -0.02em; line-height: 1; }
.brand-text small { display: block; margin-top: 3px; font-family: var(--font-body); font-size: 0.6875rem; letter-spacing: 0.04em; color: var(--muted); font-weight: 400; text-transform: uppercase; }

.nav-links { display: flex; align-items: center; gap: var(--s-1); margin-inline: auto; }
.nav-links a {
  display: inline-flex; align-items: center; min-height: 44px;
  padding: 0 var(--s-3); border-radius: var(--s-2);
  font-size: var(--text-sm); font-weight: 500; letter-spacing: -0.02em;
  color: var(--body); text-decoration: none; transition: color var(--t), background-color var(--t);
}
.nav-links a:hover { color: var(--text); background: var(--surface-2); }
.nav-links a[aria-current="page"] { color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }

.nav-actions { display: flex; align-items: center; gap: var(--s-2); }

.icon-btn {
  display: inline-grid; place-items: center; width: 44px; height: 44px;
  background: transparent; border: 1px solid var(--line); border-radius: var(--radius-btn);
  color: var(--text); transition: border-color var(--t), background-color var(--t), transform 150ms var(--ease);
}
.icon-btn:hover { border-color: var(--accent); background: var(--surface-2); }
.icon-btn:active { transform: scale(0.96); }
.theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: none; }
.menu-toggle { display: none; }

/* Controle de tamanho de fonte */
.font-ctl { display: inline-flex; align-items: center; border: 1px solid var(--line); border-radius: var(--radius-btn); overflow: clip; }
.font-btn { display: inline-grid; place-items: center; min-width: 40px; height: 42px; padding: 0 var(--s-2); background: transparent; border: 0; color: var(--text); font-family: var(--font-display); line-height: 1; transition: background-color var(--t), color var(--t), opacity var(--t); }
.font-btn + .font-btn { border-left: 1px solid var(--line); }
.font-btn:hover:not([aria-disabled="true"]) { background: var(--surface-2); color: var(--accent); }
.font-btn[aria-disabled="true"] { opacity: 0.35; cursor: not-allowed; }
.font-btn span { font-size: 15px; font-weight: 500; }
.font-btn[data-font="down"] span { font-size: 13px; }
.font-btn[data-font="up"] span { font-size: 18px; }
.font-btn:focus-visible { outline-offset: -3px; }
.font-ctl--menu { display: none; }
.nav { flex-wrap: nowrap; }
.nav-links a { white-space: nowrap; }

/* Estado recolhido (menu hambúrguer): definido por JS conforme o espaço disponível */
.site-header.is-no-cta .nav-actions .btn { display: none; }
.site-header.is-collapsed .nav-actions .btn,
.site-header.is-collapsed .nav-actions .font-ctl { display: none; }
.site-header.is-collapsed .menu-toggle { display: inline-grid; }
.site-header.is-collapsed .nav { gap: var(--s-3); }
.site-header.is-collapsed .nav-actions { margin-left: auto; }
.site-header.is-collapsed .nav-links {
  position: absolute; top: var(--nav-h); left: 0; right: 0;
  display: flex; flex-direction: column; align-items: stretch; gap: 0; margin: 0;
  padding: var(--s-2) var(--gutter) var(--s-4);
  background: var(--surface); border-bottom: 1px solid var(--line);
  opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(-10px);
  transition: opacity 280ms ease, transform 380ms var(--ease), visibility 0s linear 380ms;
}
.site-header.is-collapsed .nav-links.is-open {
  opacity: 1; visibility: visible; pointer-events: auto; transform: none;
  transition: opacity 280ms ease, transform 380ms var(--ease), visibility 0s;
}
.site-header.is-collapsed .nav-links a { padding: 0 var(--s-2); border-bottom: 1px solid var(--line-soft); border-radius: 0; min-height: 52px; font-size: var(--text-base); }
.site-header.is-collapsed .nav-links a[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); padding-left: var(--s-4); }
.site-header.is-collapsed .nav-links.is-open a { animation: fade-up 420ms var(--ease) both; }
.site-header.is-collapsed .nav-links.is-open a:nth-child(2) { animation-delay: 40ms; }
.site-header.is-collapsed .nav-links.is-open a:nth-child(3) { animation-delay: 80ms; }
.site-header.is-collapsed .nav-links.is-open a:nth-child(4) { animation-delay: 120ms; }
.site-header.is-collapsed .nav-links.is-open a:nth-child(5) { animation-delay: 160ms; }
.site-header.is-collapsed .font-ctl--menu { display: inline-flex; align-self: flex-start; margin-top: var(--s-4); }

/* ---------- 4. Botões, chips, rótulos ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  min-height: 48px; padding: 0 var(--s-6);
  border: 1px solid transparent; border-radius: var(--radius-btn);
  font-size: var(--text-base); font-weight: 500; letter-spacing: -0.022em; line-height: 1;
  text-decoration: none; white-space: nowrap;
  transition: background-color var(--t), border-color var(--t), color var(--t), transform 150ms var(--ease);
}
.btn:active { transform: translateY(1px) scale(0.98); }
.btn-accent { background: var(--accent); color: var(--on-accent); border-radius: var(--radius-pill); padding-inline: var(--s-6); }
.btn-accent:hover { background: var(--accent-hover); }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-quiet { background: transparent; color: var(--text); border-color: var(--line); border-radius: var(--radius-pill); min-height: 44px; padding-inline: var(--s-5); font-size: var(--text-sm); }
.btn-quiet:hover { border-color: var(--accent); color: var(--accent); }
.btn .icon { width: 18px; height: 18px; }
.btn[disabled] { opacity: 0.6; cursor: progress; }

.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s-2);
  font-size: var(--text-caption); font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase;
  color: var(--eyebrow);
}
.eyebrow::before { content: ""; width: 18px; height: 1px; background: currentColor; }

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 24px; padding: 2px 12px;
  border: 1px solid var(--line); border-radius: var(--radius-pill);
  font-size: var(--text-caption); font-weight: 500; letter-spacing: 0.01em; color: var(--body);
  background: transparent;
}
.chip-live { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.chip-green { color: var(--green); border-color: color-mix(in srgb, var(--green) 45%, transparent); }
.chip-orange { color: var(--orange-text); border-color: color-mix(in srgb, var(--orange) 55%, transparent); }
.chip-blue { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 50%, transparent); }

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); flex: none; }
.dot-pulse { animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--green) 55%, transparent); } 50% { box-shadow: 0 0 0 6px transparent; } }

/* ---------- 5. Seções ---------- */
.section { padding-block: clamp(56px, 8vw, var(--s-20)); }
.section--alt { background: var(--surface); border-block: 1px solid var(--line-soft); }
.section-head { display: grid; gap: var(--s-3); margin-bottom: var(--s-12); max-width: 62ch; }
.section-head p { font-size: var(--text-lg); line-height: 1.55; }
.lead { font-size: var(--text-lg); line-height: 1.55; color: var(--body); max-width: 60ch; }

.page-hero { padding-block: clamp(48px, 7vw, var(--s-20)) clamp(32px, 5vw, var(--s-12)); border-bottom: 1px solid var(--line-soft); position: relative; overflow: clip; }
.page-hero .container { display: grid; gap: var(--s-4); position: relative; }
.page-hero h1 { max-width: 18ch; }
.page-hero .lead { max-width: 56ch; }
.page-hero::after {
  content: ""; position: absolute; right: -10%; top: -40%; width: 60%; aspect-ratio: 1; background: var(--glow); pointer-events: none;
}

/* ---------- 6. Hero (início) ---------- */
.hero { position: relative; overflow: clip; border-bottom: 1px solid var(--line-soft); }
.hero-grid {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center; gap: var(--s-12);
  min-height: min(100dvh - var(--nav-h), 820px); padding-block: var(--s-16);
}
.hero-copy { display: grid; gap: var(--s-6); justify-items: start; }
.hero-copy h1 .accent { color: var(--accent); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-2); }

.meta-list { display: grid; grid-template-columns: repeat(3, minmax(0, auto)); gap: var(--s-8); margin-top: var(--s-4); padding-top: var(--s-6); border-top: 1px solid var(--line); width: 100%; }
.meta-list dt { display: flex; align-items: center; gap: var(--s-2); font-size: var(--text-caption); letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.meta-list dd { margin: var(--s-2) 0 0; font-family: var(--font-display); font-size: 1.125rem; color: var(--text); letter-spacing: -0.02em; line-height: 1.25; }

.hero-visual { position: relative; display: grid; place-items: center; aspect-ratio: 1; max-width: 560px; justify-self: end; width: 100%; }
.hero-visual::before { content: ""; position: absolute; inset: -12%; background: var(--glow); pointer-events: none; }
.hero-logo-wrap { position: relative; width: 68%; }
.hero-logo-wrap img { width: 100%; }
.circuit { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.circuit path { fill: none; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 3.6s var(--ease) forwards; }
.circuit .c-blue { stroke: var(--accent); }
.circuit .c-green { stroke: var(--green); animation-delay: 0.4s; }
.circuit .c-orange { stroke: var(--orange); animation-delay: 0.8s; }
.circuit circle { fill: var(--bg); stroke-width: 1.5; opacity: 0; animation: fade-in 0.6s 2.4s forwards; }
.circuit .n-blue { stroke: var(--accent); }
.circuit .n-green { stroke: var(--green); }
.circuit .n-orange { stroke: var(--orange); }
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fade-in { to { opacity: 1; } }

.badge-float {
  position: absolute; left: 0; bottom: 8%;
  display: inline-flex; align-items: center; gap: var(--s-3);
  padding: var(--s-3) var(--s-4); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-card);
  font-family: var(--font-mono); font-size: var(--text-caption); color: var(--text);
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; min-height: 0; padding-block: var(--s-12); gap: var(--s-10); }
  .hero-visual { order: -1; max-width: 300px; justify-self: start; }
  .badge-float { display: none; }
  .meta-list { grid-template-columns: 1fr 1fr; gap: var(--s-5); }
}
@media (max-width: 520px) { .meta-list { grid-template-columns: 1fr; } }

/* Contagem regressiva */
.countdown { display: none; gap: var(--s-2); font-family: var(--font-mono); }
.countdown.is-on { display: inline-flex; flex-wrap: wrap; }
.countdown-cell { display: grid; min-width: 64px; padding: var(--s-3) var(--s-3) var(--s-2); border: 1px solid var(--line); border-radius: var(--radius-card); background: var(--surface); text-align: center; }
.countdown-cell b { font-size: 1.5rem; font-weight: 500; color: var(--text); line-height: 1.1; font-variant-numeric: tabular-nums; }
.countdown-cell span { font-size: 0.6875rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }

/* ---------- 7. Bento (início) ---------- */
.bento { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--s-5); }
.bento > * { min-width: 0; }
.tile {
  display: flex; flex-direction: column; gap: var(--s-4);
  padding: var(--s-8); background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius-card);
  transition: border-color var(--t), background-color var(--t), transform var(--t);
  position: relative; overflow: clip;
}
.tile:hover { border-color: var(--line); }
.tile--wide { grid-column: span 7; }
.tile--narrow { grid-column: span 5; }
.tile-icon { display: grid; place-items: center; width: 48px; height: 48px; border: 1px solid var(--line); border-radius: var(--radius-btn); color: var(--accent); background: var(--bg); }
.tile-icon .icon { width: 24px; height: 24px; }
.tile--green .tile-icon { color: var(--green); }
.tile--orange .tile-icon { color: var(--orange-text); }
.tile h3 { margin-top: var(--s-2); }
.tile .tile-tag { margin-top: auto; padding-top: var(--s-2); }
.tile::after { content: ""; position: absolute; right: -40px; top: -40px; width: 140px; height: 140px; border-radius: 50%; border: 1px dashed var(--line); opacity: 0.6; pointer-events: none; }
@media (max-width: 760px) { .tile--wide, .tile--narrow { grid-column: 1 / -1; } .tile { padding: var(--s-6); } }

/* Split 2 colunas */
.split { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: var(--s-12); align-items: center; }
.split-copy { display: grid; gap: var(--s-5); justify-items: start; }
@media (max-width: 960px) { .split { grid-template-columns: 1fr; gap: var(--s-8); } }

/* ---------- 8. Janela de código ---------- */
.code-window { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-window); overflow: clip; }
.code-bar { display: flex; align-items: center; gap: var(--s-2); padding: var(--s-3) var(--s-4); border-bottom: 1px solid var(--line-soft); background: var(--surface-2); }
.code-bar i { width: 10px; height: 10px; border-radius: 50%; display: block; }
.code-bar i:nth-child(1) { background: #e5584f; }
.code-bar i:nth-child(2) { background: var(--orange); }
.code-bar i:nth-child(3) { background: var(--green); }
.code-title { margin-left: auto; font-family: var(--font-mono); font-size: var(--text-caption); color: var(--muted); }
.code-body { margin: 0; padding: var(--s-6); font-family: var(--font-mono); font-size: 0.8125rem; line-height: 1.75; color: var(--text); overflow-x: auto; tab-size: 2; }
.code-body .k { color: var(--accent); }
.code-body .s { color: var(--green); }
.code-body .n { color: var(--orange-text); }
.code-body .c { color: var(--muted); }
.cursor { display: inline-block; width: 8px; height: 1.1em; vertical-align: text-bottom; background: var(--accent); margin-left: 2px; animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- 9. Faixa CTA ---------- */
.cta-band { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: var(--s-8); padding: clamp(28px, 5vw, var(--s-12)); border: 1px solid var(--line); border-radius: var(--radius-window); background: var(--surface); position: relative; overflow: clip; }
.cta-band::before { content: ""; position: absolute; left: -10%; bottom: -80%; width: 50%; aspect-ratio: 1; background: var(--glow); pointer-events: none; }
.cta-band > * { position: relative; }
.cta-band h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem); max-width: 22ch; }
.cta-band p { margin-top: var(--s-3); max-width: 52ch; }
@media (max-width: 760px) { .cta-band { grid-template-columns: 1fr; } }

/* ---------- 10. Objetivos ---------- */
.goal-feature { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--s-12); align-items: start; }
.goal-quote { font-family: var(--font-display); font-size: clamp(1.375rem, 1.1rem + 1.2vw, 2rem); line-height: 1.3; letter-spacing: -0.02em; color: var(--text); font-feature-settings: "ss01"; text-wrap: balance; }
.goal-quote mark { background: none; color: var(--accent); }
.index-list { counter-reset: idx; border-top: 1px solid var(--line); }
.index-list li { counter-increment: idx; display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: var(--s-4); padding-block: var(--s-6); border-bottom: 1px solid var(--line); }
.index-list li::before { content: counter(idx, decimal-leading-zero); font-family: var(--font-mono); font-size: var(--text-sm); color: var(--accent); padding-top: 4px; }
.index-list h3 { font-size: 1.125rem; margin-bottom: var(--s-2); }
@media (max-width: 880px) { .goal-feature { grid-template-columns: 1fr; gap: var(--s-8); } }

.axes { display: grid; grid-template-columns: 1.3fr 1fr; gap: var(--s-5); }
.axes .tile:nth-child(3) { grid-column: 1 / -1; }
.axes .tile { padding: var(--s-6) var(--s-8); }
.tag-row { display: flex; flex-wrap: wrap; gap: var(--s-2); }
@media (max-width: 760px) { .axes { grid-template-columns: 1fr; } }

/* ---------- 11. Organização ---------- */
.org-layout { display: grid; grid-template-columns: minmax(0, 280px) minmax(0, 1fr); gap: var(--s-12); align-items: start; }
.org-aside { position: sticky; top: calc(var(--nav-h) + 24px); display: grid; gap: var(--s-4); }
.org-aside nav { display: grid; border-left: 1px solid var(--line); }
.org-aside nav a { padding: var(--s-2) var(--s-4); margin-left: -1px; border-left: 2px solid transparent; font-size: var(--text-sm); color: var(--body); text-decoration: none; transition: color var(--t), border-color var(--t); }
.org-aside nav a:hover { color: var(--text); border-left-color: var(--accent); }
.committee { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--s-8); padding-block: var(--s-8); border-top: 1px solid var(--line); }
.committee:last-child { border-bottom: 1px solid var(--line); }
.committee h3 { display: flex; align-items: center; gap: var(--s-3); }
.committee h3 .icon { color: var(--accent); width: 22px; height: 22px; }
.committee p { margin-top: var(--s-2); }
.member-list { display: grid; gap: var(--s-2); align-content: start; }
.member { display: flex; align-items: center; gap: var(--s-3); padding: var(--s-3) var(--s-4); border: 1px solid var(--line-soft); border-radius: var(--radius-card); background: var(--surface); }
.avatar { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: color-mix(in srgb, var(--accent) 16%, var(--surface)); border: 1px solid var(--line); font-family: var(--font-display); font-size: var(--text-sm); color: var(--text); flex: none; }
.member b { display: block; font-weight: 500; color: var(--text); line-height: 1.25; }
.member span { font-size: var(--text-sm); color: var(--muted); }
.member--empty { border-style: dashed; color: var(--muted); font-size: var(--text-sm); }
.inst-strip { display: flex; flex-wrap: wrap; gap: var(--s-3) var(--s-8); align-items: center; padding-block: var(--s-6); border-block: 1px solid var(--line-soft); color: var(--muted); font-family: var(--font-display); font-size: 1.125rem; }
@media (max-width: 960px) {
  .org-layout { grid-template-columns: 1fr; gap: var(--s-8); }
  .org-aside { position: static; }
  .org-aside nav { display: flex; flex-wrap: wrap; border-left: 0; gap: var(--s-2); }
  .org-aside nav a { border: 1px solid var(--line); border-radius: var(--radius-pill); margin: 0; padding: var(--s-2) var(--s-4); }
  .committee { grid-template-columns: 1fr; gap: var(--s-4); }
}

/* ---------- 12. Programação ---------- */
.notice { display: flex; gap: var(--s-3); align-items: flex-start; padding: var(--s-4) var(--s-5); border: 1px solid color-mix(in srgb, var(--orange) 45%, transparent); border-radius: var(--radius-card); background: color-mix(in srgb, var(--orange) 8%, var(--surface)); color: var(--body); font-size: var(--text-sm); }
.notice .icon { color: var(--orange-text); margin-top: 2px; }
.notice b { color: var(--text); font-weight: 500; }

.schedule-toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: var(--s-4); margin-block: var(--s-8) var(--s-6); }
.tabs { display: flex; gap: var(--s-1); padding: var(--s-1); border: 1px solid var(--line); border-radius: var(--radius-btn); background: var(--surface); overflow-x: auto; max-width: 100%; }
.tab { flex: none; min-height: 44px; padding: 0 var(--s-5); background: transparent; border: 0; border-radius: var(--s-2); color: var(--body); font-size: var(--text-sm); font-weight: 500; letter-spacing: -0.02em; transition: background-color var(--t), color var(--t); }
.tab small { display: block; font-size: 0.6875rem; font-weight: 400; color: var(--muted); letter-spacing: 0.03em; line-height: 1.2; }
.tab:hover { color: var(--text); }
.tab[aria-selected="true"] { background: var(--surface-2); color: var(--text); box-shadow: inset 0 -2px 0 var(--accent); }
.filters { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.filter { min-height: 40px; padding: 0 var(--s-4); border: 1px solid var(--line); border-radius: var(--radius-pill); background: transparent; color: var(--body); font-size: var(--text-sm); font-weight: 500; transition: all var(--t); }
.filter:hover { border-color: var(--accent); color: var(--text); }
.filter[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }

.timeline { position: relative; display: grid; }
.timeline::before { content: ""; position: absolute; left: 95px; top: 8px; bottom: 8px; width: 1px; background: var(--line); }
.slot { display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: var(--s-8); padding-block: var(--s-3); position: relative; }
.slot-time { font-family: var(--font-mono); font-size: var(--text-sm); color: var(--text); padding-top: var(--s-5); text-align: right; font-variant-numeric: tabular-nums; }
.slot-time span { display: block; color: var(--muted); font-size: var(--text-caption); margin-top: 2px; }
.slot-card { position: relative; display: grid; gap: var(--s-2); padding: var(--s-5) var(--s-6); background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius-card); transition: border-color var(--t); }
.slot-card:hover { border-color: var(--line); }
.slot-card::before { content: ""; position: absolute; left: calc(-1 * var(--s-4) - 4px); top: var(--s-6); width: 9px; height: 9px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.slot-card[data-type="minicurso"]::before { border-color: var(--green); }
.slot-card[data-type="mesa"]::before { border-color: var(--orange); }
.slot-card[data-type="social"]::before,
.slot-card[data-type="cerimonia"]::before { border-color: var(--muted); }
.slot-head { display: flex; flex-wrap: wrap; gap: var(--s-2); align-items: center; }
.slot-card h3 { font-size: 1.1875rem; }
.slot-meta { display: flex; flex-wrap: wrap; gap: var(--s-2) var(--s-5); font-size: var(--text-sm); color: var(--muted); }
.slot-meta span { display: inline-flex; align-items: center; gap: 6px; }
.slot-meta .icon { width: 16px; height: 16px; }
.empty { display: grid; justify-items: center; gap: var(--s-3); padding: var(--s-16) var(--s-6); text-align: center; border: 1px dashed var(--line); border-radius: var(--radius-card); }
.empty .icon { width: 32px; height: 32px; color: var(--muted); }
.skeleton { height: 96px; margin-block: var(--s-3); border-radius: var(--radius-card); background: linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 37%, var(--surface) 63%); background-size: 400% 100%; animation: shimmer 1.4s ease infinite; }
@keyframes shimmer { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
@media (max-width: 640px) {
  .timeline::before { left: 6px; }
  .slot { grid-template-columns: 1fr; gap: var(--s-2); padding-left: var(--s-6); }
  .slot-time { text-align: left; padding-top: 0; }
  .slot-card::before { left: calc(-1 * var(--s-6) + 2px); }
}

/* ---------- 13. Inscrições ---------- */
.reg-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); gap: var(--s-12); align-items: start; }
.form-card { padding: clamp(24px, 4vw, var(--s-10)); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-window); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-5) var(--s-5); }
.field { display: grid; gap: var(--s-2); align-content: start; }
.field--full { grid-column: 1 / -1; }
.field label, .legend { font-size: var(--text-sm); font-weight: 500; color: var(--text); letter-spacing: -0.01em; }
.field .opt { color: var(--muted); font-weight: 400; }
.field .help { font-size: var(--text-caption); color: var(--muted); }
.field .error { display: none; font-size: var(--text-caption); color: #e5584f; font-weight: 500; }
:root[data-theme="light"] .field .error { color: #b42318; }
.field.has-error .error { display: block; }
.input, .select {
  width: 100%; min-height: 48px; padding: 0 var(--s-4);
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-input); color: var(--text);
  transition: border-color var(--t), background-color var(--t);
}
.input::placeholder { color: var(--muted); opacity: 0.8; }
.input:hover, .select:hover { border-color: var(--muted); }
.input:focus-visible, .select:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; border-color: var(--focus); }
.field.has-error .input, .field.has-error .select { border-color: #e5584f; }
.select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%237188a0' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 14px center; padding-right: 40px; }
fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.check-grid { display: grid; gap: var(--s-2); margin-top: var(--s-2); }
.check { display: flex; align-items: flex-start; gap: var(--s-3); padding: var(--s-3) var(--s-4); border: 1px solid var(--line-soft); border-radius: var(--radius-card); cursor: pointer; transition: border-color var(--t), background-color var(--t); min-height: 48px; }
.check:hover { border-color: var(--line); background: var(--surface-2); }
.check input { appearance: none; flex: none; width: 20px; height: 20px; margin: 2px 0 0; border: 1px solid var(--muted); border-radius: 5px; background: var(--bg); display: grid; place-items: center; transition: all var(--t); }
.check input:checked { background: var(--accent); border-color: var(--accent); }
.check input:checked::after { content: ""; width: 10px; height: 6px; border-left: 2px solid var(--on-accent); border-bottom: 2px solid var(--on-accent); transform: translateY(-1px) rotate(-45deg); }
.check input:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.check span { font-size: var(--text-sm); color: var(--body); line-height: 1.45; }
.check b { display: block; font-weight: 500; color: var(--text); }
.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-4); margin-top: var(--s-8); }
.form-actions p { font-size: var(--text-caption); color: var(--muted); max-width: 40ch; }
.success { display: none; gap: var(--s-4); justify-items: start; padding: var(--s-6); border: 1px solid color-mix(in srgb, var(--green) 55%, transparent); border-radius: var(--radius-card); background: color-mix(in srgb, var(--green) 9%, var(--surface)); }
.success.is-on { display: grid; }
.success .icon { color: var(--green); width: 28px; height: 28px; }
.success h3 { font-size: 1.25rem; }
.success pre { margin: 0; padding: var(--s-4); width: 100%; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-card); font-family: var(--font-mono); font-size: var(--text-caption); color: var(--text); white-space: pre-wrap; overflow-wrap: anywhere; }

.steps { display: grid; gap: 0; border-top: 1px solid var(--line); counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: var(--s-3); padding-block: var(--s-5); border-bottom: 1px solid var(--line); }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--accent); color: var(--accent); font-family: var(--font-mono); font-size: var(--text-caption); }
.steps b { display: block; font-family: var(--font-display); font-weight: 500; color: var(--text); font-size: 1.0625rem; margin-bottom: 2px; }
.steps span { font-size: var(--text-sm); }
.reg-aside { display: grid; gap: var(--s-8); position: sticky; top: calc(var(--nav-h) + 24px); }
@media (max-width: 960px) { .reg-layout { grid-template-columns: 1fr; } .reg-aside { position: static; order: -1; } }
@media (max-width: 560px) { .form-grid { grid-template-columns: 1fr; } }

.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); min-height: 64px; padding-block: var(--s-4); list-style: none; cursor: pointer; font-family: var(--font-display); font-size: 1.125rem; color: var(--text); letter-spacing: -0.02em; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; width: 10px; height: 10px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); transition: transform var(--t); flex: none; margin-right: 4px; }
.faq details[open]:not(.is-closing) summary::after { transform: rotate(-135deg); }
.faq details p { padding-bottom: var(--s-6); max-width: 64ch; }

/* ---------- 14. Rodapé ---------- */
.site-footer { margin-top: var(--s-20); border-top: 1px solid var(--line); background: var(--bg); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 0.8fr)); gap: var(--s-12); padding-block: var(--s-16) var(--s-10); }
.footer-grid h2 { font-family: var(--font-body); font-size: var(--text-caption); font-weight: 500; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); margin-bottom: var(--s-4); }
.footer-grid ul { display: grid; gap: var(--s-1); }
.footer-grid a { display: inline-flex; min-height: 32px; align-items: center; color: var(--body); text-decoration: none; font-size: var(--text-sm); transition: color var(--t); }
.footer-grid a:hover { color: var(--text); text-decoration: underline; }
.footer-about { display: grid; gap: var(--s-4); align-content: start; max-width: 44ch; font-size: var(--text-sm); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-3); padding-block: var(--s-6); border-top: 1px solid var(--line-soft); font-size: var(--text-caption); color: var(--muted); }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-about { grid-column: 1 / -1; } }

/* ---------- 15. Revelar ao rolar ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 700ms var(--ease), transform 700ms var(--ease); transition-delay: calc(var(--i, 0) * 80ms); }
.js .reveal.is-in { opacity: 1; transform: none; }

@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; transition-delay: 0ms !important; }
  .circuit path { stroke-dashoffset: 0; }
  .circuit circle { opacity: 1; }
  .js .reveal { opacity: 1; transform: none; }
}

/* Atributo hidden sempre vence */
[hidden] { display: none !important; }

/* Evita que conteúdo largo (ex.: blocos de código) estique as colunas no celular */
.split > *, .hero-grid > *, .goal-feature > *, .reg-layout > *, .org-layout > *, .axes > *, .committee > * { min-width: 0; }
@media (max-width: 960px) {
  .split, .hero-grid, .goal-feature, .reg-layout, .org-layout { grid-template-columns: minmax(0, 1fr); }
}


/* ==========================================================================
   Movimento: transições suaves
   ========================================================================== */
@keyframes fade-up { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes fade-in-soft { from { opacity: 0; } to { opacity: 1; } }
@keyframes page-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes page-out { from { opacity: 1; transform: none; } to { opacity: 0; transform: translateY(-6px); } }

/* Fade entre páginas */
.is-leaving body { pointer-events: none; }

/* Troca de tema com cor suave */
.theme-anim *, .theme-anim *::before, .theme-anim *::after {
  transition: background-color 420ms ease, color 420ms ease, border-color 420ms ease, fill 420ms ease, stroke 420ms ease, box-shadow 420ms ease !important;
}

/* Acordeões */
.faq details { transition: background-color var(--t); }
.faq summary { transition: color var(--t); }
.faq summary:hover { color: var(--accent); }
.faq-body { overflow: clip; }
.faq details[open] > summary { color: var(--text); }

/* Programação: itens entram em cascata ao trocar de dia ou filtro */
.slot { animation: fade-up 520ms var(--ease) both; animation-delay: calc(var(--n, 0) * 70ms); }
.empty { animation: fade-up 480ms var(--ease) both; }
.slot-card, .member, .tile, .check, .filter, .tab, .cta-band { transition: border-color var(--t), background-color var(--t), color var(--t), transform var(--t), opacity var(--t); }
.slot-card:hover { transform: translateX(2px); }

/* Lista de minicursos dentro de um horário */
.sub-list { display: grid; gap: var(--s-2); margin-top: var(--s-2); }
.sub-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--s-1) var(--s-4); padding: var(--s-3) var(--s-4); background: var(--bg); border: 1px solid var(--line-soft); border-radius: var(--radius-card); transition: border-color var(--t); }
.sub-item:hover { border-color: var(--green); }
.sub-item b { color: var(--text); font-weight: 500; }
.sub-item div span { display: block; font-size: var(--text-sm); color: var(--muted); }
.sub-item .chip { align-self: start; }
.slot-note { font-size: var(--text-sm); color: var(--muted); }
@media (max-width: 560px) { .sub-item { grid-template-columns: 1fr; } }

/* Formulário */
.field .error { animation: fade-up 320ms var(--ease) both; }
.field.has-error .input, .field.has-error .select { animation: nudge 360ms var(--ease); }
@keyframes nudge { 20% { transform: translateX(-4px); } 50% { transform: translateX(4px); } 80% { transform: translateX(-2px); } }
.success.is-on { animation: fade-up 560ms var(--ease) both; }
.notice:not([hidden]) { animation: fade-up 480ms var(--ease) both; }
#reg-form { transition: opacity 320ms ease, transform 320ms var(--ease); }
#reg-form.is-fading { opacity: 0; transform: translateY(-8px); pointer-events: none; }
.price-box { display: flex; align-items: baseline; gap: var(--s-3); min-height: 44px; padding: var(--s-3) var(--s-4); border: 1px dashed var(--line); border-radius: var(--radius-card); color: var(--muted); font-size: var(--text-sm); transition: border-color var(--t), background-color var(--t); }
.price-box.has-price { border-style: solid; border-color: color-mix(in srgb, var(--accent) 55%, transparent); background: color-mix(in srgb, var(--accent) 7%, var(--surface)); color: var(--body); }
.price-box strong { font-family: var(--font-display); font-size: 1.375rem; font-weight: 500; color: var(--text); letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.check input[type="radio"] { border-radius: 50%; }
.check input[type="radio"]:checked::after { width: 8px; height: 8px; border: 0; border-radius: 50%; background: var(--on-accent); transform: none; }
.check:has(input:checked) { border-color: color-mix(in srgb, var(--accent) 60%, transparent); background: color-mix(in srgb, var(--accent) 7%, var(--surface)); }

/* Valores */
.price-list { border-top: 1px solid var(--line); }
.price-list li { display: flex; justify-content: space-between; align-items: baseline; gap: var(--s-4); padding-block: var(--s-4); border-bottom: 1px solid var(--line); transition: background-color var(--t), padding var(--t); }
.price-list li:hover { background: var(--surface-2); padding-inline: var(--s-3); }
.price-list span { color: var(--body); font-size: var(--text-sm); }
.price-list b { font-family: var(--font-display); font-weight: 500; font-size: 1.25rem; color: var(--text); letter-spacing: -0.02em; white-space: nowrap; font-variant-numeric: tabular-nums; }

/* Convidados */
.speaker-list { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--s-12); border-top: 1px solid var(--line); }
.speaker { display: grid; gap: 2px; padding-block: var(--s-5); border-bottom: 1px solid var(--line); transition: background-color var(--t), padding var(--t); }
.speaker:hover { background: var(--surface-2); padding-inline: var(--s-3); }
.speaker b { font-family: var(--font-display); font-weight: 500; font-size: 1.125rem; color: var(--text); letter-spacing: -0.02em; }
.speaker b em { font-style: normal; color: var(--muted); font-family: var(--font-body); font-weight: 400; font-size: var(--text-sm); margin-right: 6px; letter-spacing: 0; }
.speaker span { font-size: var(--text-sm); }
.speaker .org { color: var(--accent); }
@media (max-width: 760px) { .speaker-list { grid-template-columns: 1fr; } }

/* Tema do evento */
.theme-line { display: grid; gap: var(--s-2); padding-left: var(--s-5); border-left: 2px solid var(--accent); max-width: 52ch; }
.theme-line small { font-size: var(--text-caption); letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.theme-line p { font-family: var(--font-display); font-size: var(--text-lg); line-height: 1.35; color: var(--text); letter-spacing: -0.015em; font-feature-settings: "ss01"; }

/* Mais hover suave */
a, .nav-links a, .footer-grid a { transition: color var(--t), background-color var(--t), border-color var(--t), opacity var(--t); }
.committee { transition: background-color var(--t); }
.avatar { transition: background-color var(--t), border-color var(--t); }
.member:hover { border-color: var(--line); }
.member:hover .avatar { border-color: var(--accent); }

@media (prefers-reduced-motion: reduce) {
  body { animation: none; }
  .slot, .empty, .field .error, .success.is-on, .notice:not([hidden]) { animation: none; }
}

.brand, .brand-text, .brand-text small { white-space: nowrap; }


/* ==========================================================================
   v3 · Cortina entre páginas
   ========================================================================== */
.curtain { position: fixed; inset: 0; z-index: 9999; display: grid; grid-template-rows: repeat(3, 1fr); pointer-events: none; visibility: hidden; overflow: hidden; }
.cs { display: block; transform: translateX(-101%); transition: transform 560ms cubic-bezier(0.76, 0, 0.24, 1); will-change: transform; }
.cs-b { background: var(--accent); }
.cs-g { background: var(--green); transition-delay: 90ms; }
.cs-o { background: var(--orange); transition-delay: 180ms; }
.curtain-logo { position: absolute; left: 50%; top: 50%; width: 112px; height: 112px; margin: -56px 0 0 -56px; display: grid; place-items: center; border-radius: 50%; background: var(--bg); border: 1px solid var(--line); opacity: 0; transform: scale(0.7); transition: opacity 260ms ease, transform 380ms var(--ease); }
.curtain-logo img { width: 78%; height: auto; }
.is-leaving .curtain, .is-entering .curtain, .is-revealing .curtain { visibility: visible; }
.is-leaving .cs { transform: none; }
.is-leaving .curtain-logo { opacity: 1; transform: scale(1); transition-delay: 380ms; }
.is-leaving .curtain-logo img, .is-entering .curtain-logo img, .is-revealing .curtain-logo img { animation: spin-fast 900ms cubic-bezier(0.5, 0, 0.3, 1) infinite; }
.is-entering .cs { transform: none; transition: none; }
.is-entering .curtain-logo { opacity: 1; transform: scale(1); transition: none; }
.is-revealing .cs { transform: translateX(101%); }
.is-revealing .curtain-logo { opacity: 0; transform: scale(0.7); transition-delay: 0ms; }
@keyframes spin-fast { to { transform: rotate(360deg); } }

/* Logo da marca gira uma volta ao passar o mouse */
.brand img { transition: transform 700ms cubic-bezier(0.5, 0, 0.2, 1); }
.brand:hover img { transform: rotate(360deg); }
.hero-logo-wrap { cursor: grab; will-change: transform; touch-action: manipulation; }
.hero-logo-wrap img { will-change: transform; transform-origin: 50% 50%; }

/* ==========================================================================
   v3 · Janelas de código: digitação
   ========================================================================== */
.code-body.tw-pre { display: grid; }
.code-body.tw-pre > code { grid-area: 1 / 1; }
.tw-ghost { opacity: 0; user-select: none; }
.tw-live { pointer-events: none; }
.cursor.is-typing { animation: none; opacity: 1; }

/* ==========================================================================
   v3 · Programação: pontos com vida
   ========================================================================== */
.slot-card { --dot: var(--accent); }
.slot-card[data-type="minicurso"] { --dot: var(--green); }
.slot-card[data-type="mesa"] { --dot: var(--orange); }
.slot-card[data-type="social"], .slot-card[data-type="cerimonia"] { --dot: var(--muted); }
.slot-card::before { border-color: var(--dot) !important; transition: transform var(--t), background-color var(--t); animation: dot-ping 2.8s ease-out infinite; animation-delay: calc(var(--n, 0) * 260ms); }
.slot-card[data-type="social"]::before, .slot-card[data-type="cerimonia"]::before { animation-duration: 4.2s; }
.slot-card:hover::before, .slot-card:focus-within::before { background: var(--dot); transform: scale(1.35); }
@keyframes dot-ping {
  0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--dot) 60%, transparent); }
  70%, 100% { box-shadow: 0 0 0 12px color-mix(in srgb, var(--dot) 0%, transparent); }
}
.slot-card:hover { border-color: color-mix(in srgb, var(--dot) 55%, var(--line)); }
.timeline::after { content: ""; position: absolute; left: 95px; top: 8px; width: 1px; height: 72px; background: linear-gradient(to bottom, transparent, var(--accent), transparent); box-shadow: 0 0 10px 1px color-mix(in srgb, var(--accent) 55%, transparent); animation: travel 7s linear infinite; pointer-events: none; }
@keyframes travel { 0% { top: 0; opacity: 0; } 8% { opacity: 1; } 92% { opacity: 1; } 100% { top: calc(100% - 72px); opacity: 0; } }
@media (max-width: 640px) { .timeline::after { left: 6px; } }

/* ==========================================================================
   v3 · Banner: sinais correndo pelo circuito e pulsos nos nós
   ========================================================================== */
.circuit path.sig { stroke-dasharray: 9 220; stroke-dashoffset: 9; stroke-width: 2.6; opacity: 0; animation: signal 3.4s linear infinite; animation-delay: calc(4s + var(--d, 0s)); filter: drop-shadow(0 0 3px currentColor); }
@keyframes signal { 0% { stroke-dashoffset: 9; opacity: 1; } 100% { stroke-dashoffset: -105; opacity: 1; } }
.circuit circle.ring { fill: none; opacity: 0; transform-box: fill-box; transform-origin: center; animation: ring 3s ease-out infinite; animation-delay: calc(3s + var(--d, 0s)); }
@keyframes ring { 0% { transform: scale(1); opacity: 0.8; } 100% { transform: scale(3.4); opacity: 0; } }

/* ==========================================================================
   v3 · Página Local
   ========================================================================== */
.venue-layout { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--s-12); align-items: start; }
.venue-layout > * { min-width: 0; }
.venue-info { display: grid; gap: var(--s-5); justify-items: start; }
.venue-address { display: grid; gap: 2px; font-style: normal; font-family: var(--font-display); font-size: 1.1875rem; color: var(--text); letter-spacing: -0.01em; padding-left: var(--s-4); border-left: 2px solid var(--accent); }
.venue-contacts { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-3); }
.venue-contacts li { display: grid; grid-template-columns: 20px auto; column-gap: var(--s-3); align-items: center; }
.venue-contacts .icon { width: 18px; height: 18px; color: var(--accent); grid-row: span 2; }
.venue-contacts small { color: var(--muted); font-size: var(--text-caption); }
.venue-actions { display: flex; flex-wrap: wrap; gap: var(--s-3); }
.venue-note { font-size: var(--text-sm); color: var(--muted); max-width: 52ch; }
.venue-note a { color: var(--accent); }
.map-frame { position: relative; width: 100%; aspect-ratio: 4 / 3; min-height: 320px; border: 1px solid var(--line); border-radius: var(--radius-window); overflow: clip; background: var(--surface); }
.map-frame::before { content: "Carregando mapa…"; position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--font-mono); font-size: var(--text-sm); color: var(--muted); }
.map-frame iframe { position: relative; width: 100%; height: 100%; border: 0; display: block; }
:root[data-theme="dark"] .map-frame iframe { filter: invert(0.92) hue-rotate(180deg) saturate(0.7) brightness(0.95); }
.route-row { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: var(--s-4); }
.route { display: grid; gap: var(--s-2); align-content: start; padding: var(--s-6); background: var(--surface); border: 1px solid var(--line-soft); border-radius: var(--radius-card); text-decoration: none; color: var(--body); transition: border-color var(--t), transform var(--t); }
.route b { color: var(--text); font-family: var(--font-display); font-size: 1.1875rem; font-weight: 500; margin-top: var(--s-2); }
.route .tile-icon { color: var(--accent); }
.route--green .tile-icon { color: var(--green); }
.route--orange .tile-icon { color: var(--orange-text); }
.route:hover { border-color: var(--accent); transform: translateY(-3px); }
.route--green:hover { border-color: var(--green); }
.route--orange:hover { border-color: var(--orange); }
.unit-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.unit-list li { display: flex; justify-content: space-between; gap: var(--s-4); padding: var(--s-3) 0; border-bottom: 1px solid var(--line); font-size: var(--text-sm); }
.unit-list b { color: var(--text); font-weight: 500; }
.unit-list span { color: var(--muted); text-align: right; }
.unit-list .is-here b::before { content: ""; display: inline-block; width: 8px; height: 8px; margin-right: 10px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
.unit-list .is-here span { color: var(--green); }
@media (max-width: 960px) {
  .venue-layout { grid-template-columns: minmax(0, 1fr); }
  .route-row { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) { .map-frame { aspect-ratio: auto; height: 340px; min-height: 0; } }

@media (prefers-reduced-motion: reduce) {
  .curtain { display: none; }
  .circuit .sig, .circuit .ring { display: none; }
  .timeline::after { display: none; }
  .slot-card::before { animation: none; }
}


/* ==========================================================================
   v4 · Comprovante, pagamento e vagas
   ========================================================================== */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.pay-box { display: grid; gap: 4px; padding: var(--s-4) var(--s-5); border: 1px dashed var(--line); border-radius: var(--radius-card); background: var(--bg); font-size: var(--text-sm); color: var(--body); }
.pay-box b { color: var(--text); font-weight: 500; } .pay-box code { font-family: var(--font-mono); color: var(--text); word-break: break-all; }
input[type="file"].input { padding: 10px; height: auto; cursor: pointer; }
input[type="file"].input::file-selector-button { margin-right: 12px; padding: 6px 12px; border: 1px solid var(--line); border-radius: var(--radius-btn); background: var(--surface-2); color: var(--text); cursor: pointer; }
.vagas-left { display: inline-block; margin-left: 6px; font-style: normal; font-size: var(--text-caption); color: var(--green); }
.check.is-full { opacity: 0.55; } .check.is-full .vagas-left { color: var(--orange-text); }
.reg-code { margin: 0; font-size: var(--text-sm); color: var(--muted); } .reg-code b { display: block; font-family: var(--font-mono); font-size: 1.75rem; letter-spacing: 0.12em; color: var(--text); }


/* ==========================================================================
   v5 · Logomarcas por tema, página do curso
   ========================================================================== */
.logo-dark { display: none; }
:root[data-theme="dark"] .logo-light { display: none; }
:root[data-theme="dark"] .logo-dark { display: inline-block; }
.logo-ufnt { height: 44px; width: auto; }
.logo-es { height: 72px; width: auto; }
.footer-logos { display: flex; align-items: center; gap: var(--s-8); margin-top: var(--s-2); }
.footer-logos a { display: inline-flex; min-height: 44px; align-items: center; transition: opacity var(--t); }
.footer-logos a:hover { opacity: 0.8; }
.footer-logos .logo-ufnt { height: 88px; } .footer-logos .logo-es { height: 140px; }
.footer-about .brand img { width: 56px; height: 56px; }
@media (max-width: 760px) { .footer-logos { gap: var(--s-6); flex-wrap: wrap; } .footer-logos .logo-ufnt { height: 72px; } .footer-logos .logo-es { height: 116px; } }
.inst-strip .logo-ufnt { height: 52px; } .inst-strip .logo-es { height: 84px; }
.inst-strip a { display: inline-flex; align-items: center; }
.inst-logos { display: flex; align-items: center; gap: var(--s-10); flex-wrap: wrap; }

.course-hero { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: var(--s-12); align-items: center; }
.course-hero .logo-es { height: clamp(240px, 34vw, 400px); }
@media (max-width: 760px) { .course-hero { grid-template-columns: minmax(0, 1fr); } .course-hero .logo-es { height: 240px; } }
.course-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); border: 1px solid var(--line); border-radius: var(--radius-window); overflow: clip; background: var(--surface); margin: 0; }
.course-facts > div { padding: var(--s-5) var(--s-6); border-right: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); margin: -1px 0 0 -1px; }
.course-facts dt { font-size: var(--text-caption); letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.course-facts dd { margin: var(--s-2) 0 0; font-family: var(--font-display); font-size: 1.1875rem; color: var(--text); letter-spacing: -0.01em; line-height: 1.3; }
.course-facts dd a { color: var(--accent); overflow-wrap: anywhere; }
.course-facts .wide { grid-column: span 2; }
@media (max-width: 520px) { .course-facts .wide { grid-column: auto; } }
.comp-list { counter-reset: comp; list-style: none; margin: 0; padding: 0; display: grid; gap: var(--s-3); }
.comp-list li { counter-increment: comp; display: grid; grid-template-columns: 2.6em minmax(0, 1fr); gap: var(--s-3); }
.comp-list li::before { content: counter(comp, upper-roman); font-family: var(--font-mono); font-size: var(--text-sm); color: var(--accent); padding-top: 2px; }

/* Fotos nas comissões e na equipe do curso */
.avatar--foto { width: 56px; height: 56px; padding: 0; object-fit: cover; display: block; flex: none; }
.member-list.tem-fotos .avatar { width: 56px; height: 56px; }
.member-extra { display: flex; flex-wrap: wrap; gap: var(--s-1) var(--s-4); margin-top: 2px; }
.member-extra a { font-size: var(--text-sm); overflow-wrap: anywhere; }
.member > div { min-width: 0; } .member > div > span:not(.member-extra) { display: block; }

/* v10: título acadêmico na mesma linha do nome; quebra junto com o nome em telas estreitas */
.member b .titulo-pessoa { display: inline; font: inherit; color: inherit; margin-right: 0.15em; }
.member b { overflow-wrap: anywhere; }

/* v11: foto dos convidados na página inicial */
.speaker > div { display: grid; gap: 2px; min-width: 0; }
.speaker.com-foto { grid-template-columns: 64px 1fr; align-items: center; gap: var(--s-4); }
.speaker-foto { width: 64px; height: 64px; border-radius: 50%; object-fit: cover; border: 1px solid var(--line); background: var(--surface-2); }

/* ícones Lattes / ORCID ao lado do nome */
.nome-ids { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 8px; }
.nome-ids b { display: inline; }
.id-link { display: inline-flex; flex: none; border-radius: 50%; transition: transform .15s ease, opacity .15s ease; opacity: .9; }
.id-link:hover, .id-link:focus-visible { transform: scale(1.12); opacity: 1; }
.id-link img { display: block; width: 18px; height: 18px; }
.speaker b + .id-link { margin-left: 8px; vertical-align: middle; }
.member > div > .nome-ids ~ span { display: block; }
.speaker .nome-ids { margin: 0; } .speaker .nome-ids b { display: inline; }
.speaker .nome-ids .id-link { margin-left: 0; }