/* =========================
   NAVBAR
========================= */

.navbar {
  width: 100%;

  padding: 22px 6%;

  display: flex;
  justify-content: space-between;
  align-items: center;

  position: fixed;
  top: 0;
  left: 0;

  z-index: 1000;

  background-color: rgba(5, 5, 5, 0.28);

  border-bottom: 1px solid rgba(255, 255, 255, 0.08);

  box-shadow: none;

  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);

  transition:
    padding var(--transition),
    background-color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    backdrop-filter var(--transition);
}

/* =========================
   NAVBAR APÓS SCROLL
========================= */

.navbar.navbar-scrolled {
  padding-top: 16px;
  padding-bottom: 16px;

  background-color: rgba(5, 5, 5, 0.92);

  border-bottom-color: var(--border);

  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);

  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* =========================
   LOGO
========================= */

.nav-logo {
  position: relative;

  z-index: 1002;

  display: inline-flex;

  align-items: center;

  gap: 12px;

  color: #d0d0d0;

  font-family: var(--font-brand);

  font-size: 1rem;

  font-weight: normal;

  letter-spacing: 0.18em;

  text-decoration: none;
}

.nav-logo-image {
  width: 34px;
  height: 34px;

  display: block;

  object-fit: contain;

  flex-shrink: 0;
}

/* =========================
   MENU DESKTOP
========================= */

.nav-menu {
  display: flex;

  align-items: center;

  gap: 32px;
}

.nav-menu a {
  position: relative;

  color: rgba(255, 255, 255, 0.72);

  font-size: 0.9rem;

  text-decoration: none;

  transition: color var(--transition);
}

.nav-menu a:hover,
.nav-menu a.is-active {
  color: var(--text);
}

.nav-menu a::after {
  content: "";

  width: 0;
  height: 1px;

  position: absolute;

  left: 0;
  bottom: -7px;

  background-color: var(--silver);

  transition: width var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.is-active::after {
  width: 100%;
}


/* =========================
   BOTÃO HAMBÚRGUER
========================= */

.nav-toggle {
  display: none;

  width: 46px;
  height: 46px;

  padding: 9px;

  border: 1px solid rgba(255, 255, 255, 0.25);

  background: rgba(0, 0, 0, 0.15);

  cursor: pointer;
}

.nav-toggle span {
  display: block;

  width: 100%;
  height: 1px;

  margin: 5px 0;

  background-color: var(--silver);

  transition:
    transform var(--transition),
    opacity var(--transition);
}

/* =========================
   MOBILE
========================= */

@media (max-width: 768px) {
  .navbar {
    min-height: 72px;

    padding: 14px 6%;

    flex-direction: row;

    gap: 0;

    background-color: rgba(5, 5, 5, 0.72);

    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }

  .navbar.navbar-scrolled {
    padding-top: 12px;
    padding-bottom: 12px;

    background-color: rgba(5, 5, 5, 0.96);
  }

  .nav-logo {
    gap: 9px;

    font-size: 0.88rem;

    letter-spacing: 0.14em;
  }

  .nav-logo-image {
    width: 30px;
    height: 30px;
  }

  .nav-toggle {
    display: block;

    position: relative;

    z-index: 1002;
  }

  .nav-menu {
    width: calc(100% - 12%);

    padding: 28px;

    position: absolute;

    top: calc(100% + 10px);
    left: 6%;

    z-index: 1001;

    display: flex;

    flex-direction: column;

    align-items: flex-start;

    gap: 22px;

    background-color: rgba(5, 5, 5, 0.98);

    border: 1px solid var(--border);

    opacity: 0;

    visibility: hidden;

    pointer-events: none;

    transform: translateY(-10px);

    transition:
      opacity var(--transition),
      visibility var(--transition),
      transform var(--transition);
  }

  .nav-menu.is-open {
    opacity: 1;

    visibility: visible;

    pointer-events: auto;

    transform: translateY(0);
  }

  .nav-menu a {
    width: fit-content;

    font-size: 1rem;

    line-height: 1.4;
  }


  .nav-toggle.is-open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }
}