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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  background: #ffffff;
  color: #000000;
}

/* ---------- Header ---------- */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 32px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  z-index: 100;
}

.logo-wrapper {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
}

.logo {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #000000;
  text-transform: uppercase;
}

.subtitle {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 11.5px;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: #000000;
}

/* ---------- Menu hambúrguer ---------- */

.menu-wrapper {
  position: relative;
}

.menu-btn {
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 0;
}

.menu-btn span {
  display: block;
  height: 2px;
  width: 100%;
  background: #000000;
}

.menu-panel {
  position: absolute;
  top: 36px;
  right: 0;
  background: #ffffff;
  border: 1px solid #000000;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s;
}

.menu-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.menu-panel a {
  padding: 14px 18px;
  color: #000000;
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.03em;
  border-bottom: 1px solid #eaeaea;
}

.menu-panel a:last-child {
  border-bottom: none;
}

.menu-panel a:hover {
  background: #f5f5f5;
}

/* ---------- Galeria em duas colunas desencontradas ---------- */

main {
  padding: 104px 20px 40px;
}

.gallery {
  display: flex;
  gap: 17px;
  max-width: 1600px;
  margin: 0 auto;
  align-items: flex-start;
}

.gallery-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 17px;
  min-width: 0;
}

.gallery-col.right {
  margin-top: 88px;
}

.gallery-col img {
  width: 100%;
  display: block;
}

/* ---------- Responsivo ---------- */

@media (max-width: 480px) {
  .topbar {
    padding: 16px 20px;
  }

  .logo {
    font-size: 18px;
  }

  .subtitle {
    font-size: 9px;
  }

  main {
    padding: 86px 12px 32px;
  }

  .gallery {
    flex-direction: column;
    gap: 9px;
  }

  .gallery-col {
    display: contents;
  }

  .gallery-col.right {
    margin-top: 0;
  }

  .gallery-col img {
    margin: 0;
  }
}