:root {
  --bg: #fbf9f5;
  /* fundo off-white */
  --ink: #2a3535;
  /* texto principal */
  --teal: #4aa1a0;
  /* primário */
  --teal-600: #3a8685;
  /* primário escuro */
  --teal-700: #2f6f6e;
  --muted: #7f8b8b;
  --card: #ffffff;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

::selection {
  background: #529897; /* fundo da seleção */
  color: #f5f5f5; /* cor do texto selecionado */
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "DM Sans", system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, "Helvetica Neue", Arial, "Apple Color Emoji",
    "Segoe UI Emoji";
  line-height: 1.6;
}

/* HEADER */
.container {
  max-width: 1200px;
  margin-inline: auto;
  padding: 0 24px;
}

header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(251, 249, 245, 0.76);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  color: #529897;
  text-decoration: none;
}

.menu {
  display: flex;
  gap: 28px;
}

.menu a {
  color: #2f3a3a;
  text-decoration: none;
  font-weight: 400;
  font-size: 14px;
  letter-spacing: 0.6px;
  transition: 350ms ease;
}

.menu a:hover {
  color: #529897;
  transition: 350ms ease;
}

/* FOOTER */
footer {
  background: var(--bg);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  padding: 32px 0;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.social {
  display: flex;
  gap: 14px;
}

.social a {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--card);
  box-shadow: var(--shadow);
  color: var(--teal-700);

  transition: 350ms ease;
}

.social a:hover {
  background: #529897;
  color: #f5f5f5;
}

.legal {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 14px;
}

.legal a {
  text-decoration: none;
  color: #4f4f4f;

  transition: 350ms ease;
  font-family: "Montserrat", sans-serif;
}

.legal a:hover {
  color: #529897;
}

.copy {
  margin-top: 28px;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

/* Estilo base do overlay */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 1000;
}

.modal mark {
  background-color: transparent;
  font-weight: bold;
}

/* Quando ativo */
.modal.show {
  display: block;
  opacity: 1;
}

/* Conteúdo central do modal */
.modal-content {
  background: #fff;
  width: 80%;
  max-width: 800px;
  height: 700px;
  margin: 5% auto;
  padding: 20px;
  border-radius: 10px;
  position: relative;
  transform: translateY(-30px);
  transition: transform 0.3s ease;
  overflow-y: auto;
}

.modal-content h2 {
  text-align: center;
}

/* Efeito de slide ao abrir */
.modal.show .modal-content {
  transform: translateY(0);
}

/* Botão X */
.close-btn {
  position: absolute;
  top: 10px;
  right: 15px;
  text-decoration: none;
  font-size: 20px;
  color: #000;
  cursor: pointer;
}

/* RESPONSIVE */
@media (max-width: 550px) {
  .nav {
    display: flex;
    flex-direction: column;

    justify-content: center;
    align-items: center;
  }

  .nav .brand {
    margin: 10px 0px;
  }
}

@media (max-height: 800px) {
  .modal-content {
    height: 500px;
  }
}

@media (max-width: 690px) {
  .brand b {
    font-size: 32px;
  }

  .copy {
    margin-top: 38px;
    font-size: 12px;
  }
}