:root {
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --border: rgba(17, 24, 39, 0.12);
  --accent: #1d4ed8;
}

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

body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Arial, sans-serif;
  background:
    radial-gradient(1200px 600px at 10% 0%, rgba(29,78,216,0.08), transparent 55%),
    radial-gradient(900px 500px at 90% 10%, rgba(29,78,216,0.06), transparent 55%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 1.25rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: rgba(246, 247, 251, 0.82);
  backdrop-filter: blur(10px);
}

.brand {
  font-weight: 800;
  letter-spacing: 0.2px;
}

.site-nav {
  display: flex;
  gap: 0.9rem;
  align-items: center;
}

.nav-link {
  padding: 0.4rem 0.6rem;
  border-radius: 10px;
  color: var(--muted);
}

.nav-link.active {
  color: var(--text);
  background: rgba(29,78,216,0.08);
  border: 1px solid var(--border);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--border);
  background: rgba(17,24,39,0.04);
  border-radius: 12px;
  padding: 0.55rem 0.6rem;
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
  opacity: 0.9;
}

.card {
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.92);
  border-radius: 18px;
  padding: 1.25rem;
  box-shadow: 0 18px 40px rgba(17, 24, 39, 0.08);
}

.actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.button {
  display: inline-block;
  padding: 0.6rem 0.9rem;
  border-radius: 14px;
  border: 1px solid rgba(29,78,216,0.28);
  background: rgba(29,78,216,0.10);
  color: var(--text);
}

.button:hover {
  text-decoration: none;
  border-color: rgba(29,78,216,0.45);
}

.button-outline {
  background: transparent;
  border: 1px solid var(--border);
}

.muted { color: var(--muted); }
.small { font-size: 0.92rem; }

.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  padding: 1rem 0;
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.toolbar { margin: 1rem 0; }

.input {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(17,24,39,0.03);
  color: var(--text);
  outline: none;
}

.input::placeholder { color: rgba(75, 85, 99, 0.75); }

.pub-list {
  margin: 0.5rem 0 0;
  padding-left: 1.2rem;
}

.pub-item { margin: 0.9rem 0; }
.pub-title { font-weight: 650; }

.pub-meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.person {
  display: flex;
  gap: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 0.9rem;
  background: rgba(17,24,39,0.02);
}

.avatar {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: rgba(29,78,216,0.10);
  border: 1px solid rgba(29,78,216,0.18);
}

.person-name {
  margin: 0;
  font-size: 1.05rem;
}

.links {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.links a { color: var(--accent); }

.project h2 { margin-top: 0.2rem; }

/* --- Principal (index) com foto --- */
.hero {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.hero-photo {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid var(--border);
  box-shadow: 0 14px 30px rgba(17, 24, 39, 0.12);
}

.hero-content h1 { margin-top: 0; }

/* --- Projetos: Powered by Google --- */
.powered-by {
  margin-top: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
}

.powered-by-logo {
  height: 34px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
  border-radius: 8px;
}

.powered-by-text {
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 780px) {
  .nav-toggle { display: inline-block; }

  .site-nav {
    position: absolute;
    left: 1.25rem;
    right: 1.25rem;
    top: 64px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: rgba(255,255,255,0.96);
    box-shadow: 0 20px 60px rgba(17, 24, 39, 0.16);
  }

  .site-nav.open { display: flex; }
  .nav-link { padding: 0.65rem 0.75rem; }

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

  .hero { grid-template-columns: 1fr; }
  .hero-photo { max-width: 260px; }
}

/* Language switch */
.lang-switch {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  margin-left: 12px;
}

.lang-btn {
  border: 1px solid rgba(0, 0, 0, 0.18);
  background: transparent;
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  font: inherit;
  line-height: 1;
}

.lang-btn.active,
.lang-btn[aria-pressed="true"] {
  border-color: rgba(0, 0, 0, 0.35);
  background: rgba(0, 0, 0, 0.06);
}

@media (max-width: 720px) {
  .lang-switch {
    margin-left: 0;
  }
}

/* Gallery (Eventos) */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.photo-card {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.08);
  background: #fff;
}

.photo-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.photo-card figcaption {
  padding: 0.85rem 0.9rem;
}

@media (max-width: 900px) {
  .photo-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .photo-card img {
    height: 200px;
  }
}

@media (max-width: 620px) {
  .photo-grid {
    grid-template-columns: 1fr;
  }
  .photo-card img {
    height: 220px;
  }
}