/* ═══════════════════════════════════════
   NAVBAR — Floating pill, premium
   Isaac Amaral / Grupo Insight
═══════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 48px);
  max-width: 1140px;
  z-index: var(--z-nav);
  height: var(--nav-h);
  padding: 0 clamp(16px, 2vw, 24px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(7, 7, 16, 0.65);
  backdrop-filter: blur(28px) saturate(1.5);
  -webkit-backdrop-filter: blur(28px) saturate(1.5);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 100px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(255, 255, 255, 0.03) inset;
  transition:
    background var(--duration) var(--ease),
    border-color var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
}

.navbar.scrolled {
  background: rgba(7, 7, 16, 0.88);
  border-color: rgba(73, 36, 245, 0.25);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.55),
    0 0 60px rgba(73, 36, 245, 0.08),
    0 0 0 1px rgba(73, 36, 245, 0.06) inset;
}

/* ── Brand ── */
.nav-brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-icon img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  transform-origin: 50% 50%;
  animation: spinSelf 10s linear infinite;
}

/* ── Links ── */
.nav-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(14px, 2vw, 28px);
  flex: 1;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  position: relative;
  transition: color var(--duration) var(--ease);
  white-space: nowrap;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 1.5px;
  background: var(--purple);
  border-radius: 2px;
  transition: width var(--duration) var(--ease), left var(--duration) var(--ease);
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a:hover::after {
  width: 100%;
  left: 0;
}

/* ── Buttons ── */
.nav-buttons {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-btn-outline {
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: transparent;
  transition: border-color var(--duration), background var(--duration);
  white-space: nowrap;
}

.nav-btn-outline:hover {
  border-color: var(--purple-30);
  background: var(--purple-10);
}

.nav-btn-aluno {
  padding: 8px 16px;
  border: 1.5px solid rgba(73, 36, 245, 0.5);
  border-radius: var(--radius-pill);
  color: var(--purple-light);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: rgba(73, 36, 245, 0.06);
  transition: background var(--duration), color var(--duration), border-color var(--duration);
  white-space: nowrap;
}

.nav-btn-aluno:hover {
  background: rgba(73, 36, 245, 0.18);
  color: var(--white);
  border-color: var(--purple);
}

.nav-btn-solid {
  padding: 8px 18px;
  background: var(--purple);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: var(--radius-pill);
  border: none;
  transition: background var(--duration), transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
  box-shadow: 0 4px 16px rgba(73, 36, 245, 0.35);
}

.nav-btn-solid:hover {
  background: var(--purple-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(73, 36, 245, 0.5);
}

.nav-btn-finmaster {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--white);
  color: var(--black);
  font-family: var(--font-body);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  border-radius: var(--radius-pill);
  border: none;
  transition: background var(--duration), transform 0.2s;
  white-space: nowrap;
}

.nav-btn-finmaster:hover {
  background: var(--gray-200);
  transform: translateY(-1px);
}

.finmaster-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

/* ── Hamburger ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 11px;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  z-index: calc(var(--z-nav) + 1);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  transition: all 0.3s var(--ease);
}

.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile drawer ── */
.nav-drawer {
  display: none;
  position: fixed;
  top: calc(var(--nav-h) + 28px);
  left: 16px;
  right: 16px;
  background: rgba(7, 7, 16, 0.96);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 24px clamp(16px, 3vw, 28px) 32px;
  z-index: calc(var(--z-nav) - 1);
  transform: translateY(-12px);
  opacity: 0;
  transition: transform 0.3s var(--ease-out-expo), opacity 0.3s var(--ease);
  pointer-events: none;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.nav-drawer.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: all;
  display: block;
}

.nav-drawer ul {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-drawer a {
  display: block;
  padding: 13px 0;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: color 0.3s, padding-left 0.3s;
}

.nav-drawer a:hover {
  color: var(--white);
  padding-left: 8px;
}

.nav-drawer-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 20px;
}

.nav-drawer-buttons .nav-btn-outline,
.nav-drawer-buttons .nav-btn-aluno,
.nav-drawer-buttons .nav-btn-solid {
  display: block;
  text-align: center;
  padding: 14px 24px;
  font-size: 12px;
  border-radius: var(--radius);
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .navbar {
    width: calc(100% - 32px);
    border-radius: 24px;
    top: 12px;
  }
  .nav-links { display: none; }
  .nav-buttons { display: none; }
  .hamburger { display: flex; }
  .nav-drawer {
    top: calc(var(--nav-h) + 20px);
  }
}

@media (max-width: 480px) {
  .navbar { border-radius: 20px; }
}

/* Respect reduced-motion — stop logo spin */
@media (prefers-reduced-motion: reduce) {
  .nav-icon img {
    animation: none;
  }
}