/* ===================================================================
   CGPL 2026 — Identidade visual oficial PMI (manual "PMI New Branding
   - Chapters", 2026), aplicada ao Chapter PMI-PE.

   Paleta: Violeta (primária), Aqua (secundária), Tangerina (terciária,
   uso pontual) — valores extraídos do manual e confirmados pela
   coordenação de marketing do PMI-PE para o ano corrente.

   Tipografia oficial: Teodor (títulos) + Aeonik (corpo), com fallback
   Aptos previsto no manual. Nenhuma das três está disponível como
   webfont livre — usamos aqui Fraunces (títulos) e Manrope (corpo)
   como substitutas de mesmo espírito editorial/geométrico, mantendo
   a paleta e as regras de marca inalteradas.

   Toque local: o "sol nascente" (sol, arcos e estrela) já presente no
   quadrante violeta do logo oficial do PMI-PE é reaproveitado aqui como
   motivo decorativo — a referência a Pernambuco vem da forma, não de
   cores fora da paleta aprovada.
   =================================================================== */

:root {
  /* Violeta — primária */
  --violet-50: #efedf3;
  --violet-300: #b465ff;
  --violet-500: #4f17a8;
  --violet-brand: #461da3;
  --violet-800: #371075;
  --violet-900: #200f3b;
  --violet-950: #100522;

  /* Aqua — secundária */
  --aqua-50: #eefafa;
  --aqua-300: #06bfe0;
  --aqua-500: #00799e;
  --aqua-800: #005c77;
  --aqua-900: #023041;

  /* Tangerina — terciária, uso pontual */
  --tangerine-50: #fef7f3;
  --tangerine-300: #ff610f;
  --tangerine-500: #d5340b;
  --tangerine-800: #461409;

  /* Neutros */
  --neutral-50: #f7f4ef;
  --soft-gray: #808080;

  /* Papéis semânticos */
  --bg: var(--neutral-50);
  --bg-panel: #efe9dd;
  --paper: #ffffff;
  --ink: var(--violet-900);
  --ink-soft: #564b6e;
  --ink-dim: #8d84a0;
  --border: rgba(32, 15, 59, 0.13);
  --border-light: rgba(247, 244, 239, 0.22);
  --cream-rgb: 247, 244, 239;

  --font: 'Manrope', Arial, sans-serif;
  --font-display: 'Fraunces', Georgia, serif;
  --container: 1180px;
  --radius: 14px;
  --header-h: 84px;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--violet-brand); color: #fff;
  padding: 12px 20px; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

section { position: relative; }
.section-pad { padding: 110px 0; }
@media (max-width: 768px) { .section-pad { padding: 72px 0; } }

.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.eyebrow {
  display: inline-block; color: var(--tangerine-500); font-weight: 700; font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px;
}
.section-head h2 {
  font-family: var(--font-display); font-size: clamp(28px, 4vw, 42px);
  font-weight: 600; line-height: 1.2; margin-bottom: 16px; color: var(--ink);
}
.section-head p { color: var(--ink-soft); font-size: 17px; }

.bg-dark { background: var(--paper); }
.bg-panel { background: var(--bg-panel); }
.bg-panel-alt { background: var(--bg-panel); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 16px 32px; border-radius: 8px; font-weight: 700; font-size: 14px;
  letter-spacing: 0.5px; text-transform: uppercase;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--violet-brand); color: #fff; box-shadow: 0 10px 28px -10px rgba(70, 29, 163, 0.55); }
.btn-primary:hover { background: var(--violet-500); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--ink); border: 1.5px solid rgba(32, 15, 59, 0.3); }
.btn-outline:hover { border-color: var(--violet-brand); color: var(--violet-brand); background: rgba(70, 29, 163, 0.05); }
.btn-dark { background: var(--violet-900); color: var(--neutral-50); }
.btn-dark:hover { background: var(--violet-950); }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; top: 0; left: 0; width: 100%; height: var(--header-h); z-index: 500;
  display: flex; align-items: center;
  background: rgba(var(--cream-rgb), 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, box-shadow 0.3s ease, height 0.3s ease, border-color 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px -14px rgba(32, 15, 59, 0.3);
  height: 72px;
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { flex-shrink: 0; }
.brand img { height: 44px; width: auto; max-width: none; flex-shrink: 0; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 60; }
.nav-toggle span { width: 26px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease; }

.main-nav { display: flex; align-items: center; gap: 8px; }
.main-nav ul { display: flex; align-items: center; gap: 4px; }
.main-nav a.nav-link {
  display: inline-block; padding: 10px 16px; font-size: 14px; font-weight: 700;
  letter-spacing: 0.3px; text-transform: uppercase; color: var(--ink); border-radius: 6px;
  transition: color 0.2s ease;
}
.main-nav a.nav-link:hover { color: var(--violet-brand); }
.header-cta { margin-left: 12px; }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding-top: var(--header-h);
  background:
    radial-gradient(55% 45% at 88% 8%, rgba(6, 191, 224, 0.14), transparent 62%),
    radial-gradient(60% 50% at 10% 15%, rgba(79, 23, 168, 0.14), transparent 62%),
    var(--neutral-50);
  overflow: hidden;
}
.hero-sol {
  position: absolute;
  opacity: 0.12;
  width: 640px; height: 640px;
  right: -140px; bottom: -220px;
  pointer-events: none;
}
.hero-glow {
  position: absolute; width: 560px; height: 560px; border-radius: 50%;
  background: radial-gradient(circle, rgba(213, 52, 11, 0.12), transparent 70%);
  filter: blur(10px); top: -220px; left: -160px; pointer-events: none;
}
.hero .container { position: relative; z-index: 2; text-align: center; padding-top: 60px; padding-bottom: 60px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 10px; padding: 8px 18px;
  border: 1px solid var(--border); border-radius: 999px; background: rgba(255,255,255,0.65);
  font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  color: var(--violet-brand); margin-bottom: 28px;
}
.hero-badge svg { color: var(--tangerine-500); }
.hero h1 {
  font-family: var(--font-display); font-size: clamp(36px, 6vw, 68px); font-weight: 600;
  line-height: 1.12; letter-spacing: -0.5px; max-width: 900px; margin: 0 auto 24px; color: var(--ink);
}
.hero h1 .accent { color: var(--tangerine-500); }
.hero-sub { max-width: 620px; margin: 0 auto 40px; color: var(--ink-soft); font-size: 18px; }
.hero-actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-meta { display: flex; align-items: center; justify-content: center; gap: 36px; flex-wrap: wrap; color: var(--ink); font-weight: 700; font-size: 15px; }
.hero-meta li { display: flex; align-items: center; gap: 10px; }
.hero-meta .icon {
  width: 34px; height: 34px; border-radius: 50%; background: rgba(255,255,255,0.75);
  border: 1px solid var(--border); display: inline-flex; align-items: center; justify-content: center;
  color: var(--violet-brand); flex-shrink: 0;
}

.countdown { display: flex; justify-content: center; gap: 16px; margin: 48px auto 0; flex-wrap: wrap; }
.countdown .cd-item {
  min-width: 92px; padding: 16px 10px; background: rgba(255,255,255,0.75);
  border: 1px solid var(--border); border-radius: var(--radius); backdrop-filter: blur(6px);
}
.countdown .cd-num { display: block; font-family: var(--font-display); font-size: 32px; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--violet-brand); }
.countdown .cd-label { display: block; margin-top: 4px; font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--ink-dim); }

.scroll-cue { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); color: var(--ink-dim); font-size: 22px; animation: bob 2s ease-in-out infinite; }
@keyframes bob { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 8px); } }

/* ---------- Marquee ---------- */
.marquee-wrap { transform: rotate(-1.6deg); margin: -44px 0 -32px; position: relative; z-index: 3; }
.marquee { overflow: hidden; white-space: nowrap; padding: 16px 0; font-family: var(--font-display); font-size: 25px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.marquee.row-1 { background: var(--violet-brand); color: #fff; }
.marquee.row-2 { background: var(--aqua-800); color: #fff; }
.marquee-track { display: inline-flex; align-items: center; animation: marquee 32s linear infinite; }
.marquee.row-2 .marquee-track { animation-direction: reverse; animation-duration: 36s; }
.marquee-track span { display: inline-flex; align-items: center; padding: 0 28px; }
.marquee-track span::after { content: "◆"; margin-left: 28px; opacity: 0.55; font-size: 12px; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track { animation: none; } .scroll-cue { animation: none; } }

/* ---------- Sobre / Stats ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; }
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }
.about-text p { color: var(--ink-soft); margin-bottom: 18px; font-size: 16px; }
.about-text h2 { font-family: var(--font-display); font-size: clamp(26px, 3.6vw, 38px); font-weight: 600; margin-bottom: 20px; line-height: 1.25; color: var(--ink); }

.stat-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.stat-card { background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px 22px; }
.stat-card .num { font-family: var(--font-display); font-size: 34px; font-weight: 600; color: var(--violet-brand); display: block; }
.stat-card .label { color: var(--ink-soft); font-size: 14px; margin-top: 6px; display: block; }

.placeholder-note { display: inline-block; margin-top: 28px; padding: 10px 16px; border: 1px dashed rgba(213, 52, 11, 0.5); border-radius: 8px; background: var(--tangerine-50); color: var(--tangerine-500); font-size: 13px; font-weight: 600; }

/* ---------- Banner cidade-sede ---------- */
.city-banner {
  position: relative;
  min-height: 380px;
  display: flex;
  align-items: center;
  background-image: url('../assets/img/recife-skyline.jpg');
  background-size: cover;
  background-position: center 60%;
  overflow: hidden;
}
.city-banner-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, var(--violet-950) 0%, rgba(16, 5, 34, 0.86) 28%, rgba(16, 5, 34, 0.35) 58%, rgba(16, 5, 34, 0.55) 100%),
    radial-gradient(60% 80% at 92% 100%, rgba(213, 52, 11, 0.35), transparent 70%);
}
.city-banner .container { position: relative; z-index: 1; max-width: 640px; }
.city-banner h2 {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 600;
  color: var(--neutral-50);
  margin: 10px 0 14px;
  line-height: 1.2;
}
.city-banner p {
  color: rgba(247, 244, 239, 0.82);
  font-size: 16px;
  max-width: 480px;
}
@media (max-width: 700px) {
  .city-banner { min-height: 300px; background-position: 70% 60%; }
  .city-banner-overlay {
    background:
      linear-gradient(180deg, rgba(16,5,34,0.55) 0%, rgba(16,5,34,0.92) 75%),
      radial-gradient(70% 60% at 90% 10%, rgba(213, 52, 11, 0.3), transparent 70%);
  }
}

/* ---------- Local ---------- */
.local-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
@media (max-width: 900px) { .local-grid { grid-template-columns: 1fr; } }
.local-map { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); aspect-ratio: 4 / 3; }
.local-map iframe { width: 100%; height: 100%; border: 0; filter: saturate(0.85) hue-rotate(-8deg); }
.local-info h3 { font-family: var(--font-display); font-size: 26px; font-weight: 600; margin-bottom: 10px; color: var(--ink); }
.local-info .venue { color: var(--violet-brand); font-weight: 700; margin-bottom: 18px; }
.local-info p { color: var(--ink-soft); margin-bottom: 22px; }
.local-list { display: flex; flex-direction: column; gap: 14px; margin-bottom: 26px; }
.local-list li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink-soft); }
.local-list .icon { color: var(--aqua-500); flex-shrink: 0; margin-top: 2px; }

/* ---------- Speakers ---------- */
.speakers-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
@media (max-width: 980px) { .speakers-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .speakers-grid { grid-template-columns: 1fr; } }
.speaker-card { background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; color: var(--ink); transition: transform 0.25s ease, box-shadow 0.25s ease; }
.speaker-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px -20px rgba(32, 15, 59, 0.3); }
.speaker-card .photo { aspect-ratio: 1 / 1; overflow: hidden; background: var(--violet-50); }
.speaker-card .photo img { width: 100%; height: 100%; object-fit: cover; }
.speaker-card .info { padding: 20px; }
.speaker-card h3 { font-size: 17px; font-weight: 800; margin-bottom: 6px; }
.speaker-card .role { font-size: 13.5px; color: var(--ink-soft); margin-bottom: 12px; min-height: 40px; }
.speaker-card .more { font-size: 12.5px; font-weight: 800; letter-spacing: 0.5px; color: var(--aqua-800); text-transform: uppercase; }

.section-cta { text-align: center; margin-top: 48px; }

/* ---------- Programação ---------- */
.tabs { display: flex; justify-content: center; gap: 10px; margin-bottom: 44px; flex-wrap: wrap; }
.tab-btn { padding: 12px 26px; border-radius: 8px; border: 1px solid var(--border); font-weight: 700; font-size: 14px; color: var(--ink-soft); background: var(--paper); transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease; }
.tab-btn.is-active, .tab-btn:hover { background: var(--violet-brand); color: #fff; border-color: var(--violet-brand); }
.tab-panel { display: none; }
.tab-panel.is-active { display: block; animation: fadeIn 0.35s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.schedule-list { display: flex; flex-direction: column; gap: 14px; max-width: 860px; margin: 0 auto; }
.schedule-item { display: grid; grid-template-columns: 130px 1fr auto; gap: 20px; align-items: center; background: var(--paper); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; }
@media (max-width: 700px) { .schedule-item { grid-template-columns: 1fr; text-align: left; gap: 8px; } }
.schedule-item .time { color: var(--tangerine-500); font-weight: 800; font-size: 15px; }
.schedule-item .details h4 { font-size: 16.5px; font-weight: 700; margin-bottom: 4px; color: var(--ink); }
.schedule-item .details p { color: var(--ink-soft); font-size: 14px; }
.schedule-item .tag { justify-self: end; font-size: 11.5px; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; padding: 6px 12px; border-radius: 999px; background: var(--aqua-50); color: var(--aqua-800); white-space: nowrap; }
@media (max-width: 700px) { .schedule-item .tag { justify-self: start; } }

/* ---------- Pricing / Lotes ---------- */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 980px) { .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; } }
.pricing-grid-2 { grid-template-columns: repeat(2, 1fr); max-width: 780px; margin: 0 auto; }
@media (max-width: 700px) { .pricing-grid-2 { grid-template-columns: 1fr; max-width: 420px; } }
.price-card { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px 28px; display: flex; flex-direction: column; gap: 18px; position: relative; }
.price-card.featured { background: var(--paper); border-color: var(--violet-brand); box-shadow: 0 20px 50px -24px rgba(70, 29, 163, 0.4); transform: scale(1.03); }
.price-card .badge { position: absolute; top: -14px; right: 24px; background: var(--tangerine-500); color: #fff; font-size: 11.5px; font-weight: 800; letter-spacing: 0.5px; text-transform: uppercase; padding: 6px 14px; border-radius: 999px; }
.price-card .tier { font-size: 13px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; color: var(--aqua-800); }
.price-card .price { font-family: var(--font-display); font-size: 40px; font-weight: 600; color: var(--ink); }
.price-card .price small { font-family: var(--font); font-size: 15px; font-weight: 600; color: var(--ink-dim); }
.price-card ul { display: flex; flex-direction: column; gap: 10px; margin: 4px 0 8px; }
.price-card ul li { display: flex; gap: 10px; color: var(--ink-soft); font-size: 14.5px; align-items: flex-start; }
.price-card ul li .icon { color: var(--violet-brand); flex-shrink: 0; margin-top: 3px; }
.pricing-note { text-align: center; color: var(--ink-dim); font-size: 13.5px; margin-top: 36px; max-width: 700px; margin-left: auto; margin-right: auto; }

/* ---------- Patrocinadores ---------- */
.sponsor-tier { text-align: center; margin-bottom: 48px; }
.sponsor-tier:last-child { margin-bottom: 0; }
.sponsor-tier h4 { font-size: 13px; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; color: var(--ink-dim); margin-bottom: 26px; }
.sponsor-logos { display: flex; justify-content: center; align-items: center; gap: 28px; flex-wrap: wrap; }
.sponsor-logos img { opacity: 0.85; transition: opacity 0.2s ease; }
.sponsor-logos img:hover { opacity: 1; }
.sponsor-badge {
  display: inline-flex; align-items: center; justify-content: center; min-width: 160px;
  padding: 18px 26px; border: 1px solid var(--border); border-radius: 10px; background: var(--paper);
  font-weight: 800; font-size: 16px; letter-spacing: 0.3px; color: var(--ink);
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.sponsor-badge:hover { border-color: var(--aqua-500); transform: translateY(-2px); }
.sponsor-cta { text-align: center; margin-top: 20px; display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.faq-q { width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 22px 26px; text-align: left; font-weight: 700; font-size: 16px; color: var(--ink); }
.faq-q .plus {
  flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: rgba(32,15,59,0.08);
  display: inline-flex; align-items: center; justify-content: center; font-size: 16px; color: var(--ink);
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}
.faq-item.is-open .faq-q .plus { transform: rotate(45deg); background: var(--violet-brand); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-a p { padding: 0 26px 22px; color: var(--ink-soft); font-size: 15px; }

/* ---------- Final CTA ---------- */
.final-cta { position: relative; text-align: center; padding: 90px 0; background: var(--violet-950); color: var(--neutral-50); overflow: hidden; }
.final-cta .hero-sol { opacity: 0.14; right: auto; left: 50%; transform: translateX(-50%); bottom: -280px; }
.final-cta .container { position: relative; z-index: 1; }
.final-cta h2 { font-family: var(--font-display); font-size: clamp(28px, 4vw, 44px); font-weight: 600; margin-bottom: 18px; }
.final-cta p { color: rgba(var(--cream-rgb), 0.8); max-width: 560px; margin: 0 auto 36px; font-size: 17px; }
.final-cta .actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.final-cta .btn-outline { border-color: rgba(var(--cream-rgb), 0.4); color: var(--neutral-50); }
.final-cta .btn-outline:hover { border-color: var(--neutral-50); background: rgba(var(--cream-rgb), 0.1); }

/* ---------- Footer ---------- */
.site-footer { background: var(--violet-950); color: var(--neutral-50); border-top: 1px solid var(--border-light); padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 50px; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-logo-card {
  display: inline-flex; align-items: center; background: var(--neutral-50);
  border-radius: 10px; padding: 12px 16px; margin-bottom: 16px;
}
.footer-logo-card img { height: 30px; width: auto; }

.footer-brand p { color: rgba(var(--cream-rgb), 0.72); font-size: 14.5px; max-width: 280px; }

.footer-col h5 { font-size: 13px; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(var(--cream-rgb), 0.55); margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { color: rgba(var(--cream-rgb), 0.85); font-size: 14.5px; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--aqua-300); }

.footer-social { display: flex; gap: 10px; margin-top: 18px; }
.footer-social a { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--border-light); color: var(--neutral-50); display: inline-flex; align-items: center; justify-content: center; transition: background 0.2s ease, border-color 0.2s ease; }
.footer-social a:hover { background: var(--violet-brand); border-color: var(--violet-brand); }

.footer-bottom { padding-top: 26px; border-top: 1px solid var(--border-light); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: rgba(var(--cream-rgb), 0.55); font-size: 13.5px; }
.footer-bottom a { color: rgba(var(--cream-rgb), 0.55); }
.footer-bottom a:hover { color: var(--aqua-300); }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed; bottom: 26px; right: 26px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--violet-brand); color: #fff; display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease; z-index: 400;
  box-shadow: 0 10px 24px -8px rgba(70, 29, 163, 0.5);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Mobile nav ---------- */
@media (max-width: 960px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; inset: 0; top: 0; height: 100vh; width: 100%; background: var(--neutral-50);
    flex-direction: column; justify-content: center; align-items: center;
    transform: translateX(100%); transition: transform 0.35s ease; z-index: 50;
  }
  .main-nav.is-open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 6px; text-align: center; }
  .main-nav a.nav-link { font-size: 20px; padding: 14px 20px; }
  .header-cta { margin: 24px 0 0; }
}