/* ============================================================
   AI TURBO TRADE — SHARED SITE HEADER
   One header to rule every marketing / dashboard page.
   Scoped under .site-header so it wins over the legacy
   header / nav rules in home-page.css when both are loaded.
   ============================================================ */

header.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 32px;
  background: rgba(15, 17, 22, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
header.site-header.scrolled {
  background: rgba(13, 15, 20, 0.95);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}

.site-header .logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 20px;
  color: var(--primary, #00e5ff);
  letter-spacing: 0.5px;
  text-decoration: none;
  white-space: nowrap;
}
.site-header .logo img {
  width: 48px;
  height: 48px;
  display: block;
}

.site-header nav {
  display: flex;
  gap: 24px;
  font-size: 15px;
  position: static;
  transform: none;
  padding: 0;
  background: none;
}
.site-header nav a {
  color: #cdd1e0;
  text-decoration: none;
  position: relative;
  font-weight: 500;
  transition: color 0.3s ease;
  white-space: nowrap;
}
.site-header nav a:hover,
.site-header nav a.active {
  color: var(--primary, #00e5ff);
}
.site-header nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--primary-gradient, linear-gradient(90deg, #00e5ff, #0077ff));
  transition: width 0.3s;
}
.site-header nav a:hover::after,
.site-header nav a.active::after {
  width: 100%;
}

.site-header .header-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.site-header .auth-buttons {
  display: flex;
  align-items: center;
  gap: 12px;
}
.site-header .auth-buttons .btn {
  padding: 9px 20px;
  border-radius: 12px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  transition: all 0.3s ease;
  text-decoration: none;
  white-space: nowrap;
}
.site-header .auth-buttons .btn-primary {
  background: var(--primary-gradient, linear-gradient(90deg, #00e5ff, #0077ff));
  color: #0d111a;
  border: none;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.35);
}
.site-header .auth-buttons .btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.15);
}
.site-header .auth-buttons .btn-outline {
  background: transparent;
  border: 2px solid var(--primary, #00e5ff);
  color: var(--primary, #00e5ff);
}
.site-header .auth-buttons .btn-outline:hover {
  background: var(--primary-gradient, linear-gradient(90deg, #00e5ff, #0077ff));
  color: #0d111a;
}
.site-header .auth-buttons .btn-ghost {
  background: none;
  border: none;
  color: #8f94a8;
  font-size: 14px;
  font-weight: 500;
  padding: 9px 10px;
}
.site-header .auth-buttons .btn-ghost:hover {
  color: #ff3b6b;
}

.site-header .menu-toggle {
  display: none;
  font-size: 26px;
  cursor: pointer;
  color: var(--primary, #00e5ff);
  background: none;
  border: none;
  padding: 4px 8px;
  line-height: 1;
}

/* --------------------------------------------------------
   Mobile: collapse nav into a dropdown panel
   -------------------------------------------------------- */
@media (max-width: 1024px) {
  header.site-header nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: #14171f;
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    text-align: center;
    padding: 8px 0;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }
  header.site-header nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .site-header nav a {
    padding: 13px 0;
  }
  .site-header nav a::after {
    display: none;
  }
  .site-header .menu-toggle {
    display: block;
  }
}

@media (max-width: 560px) {
  header.site-header {
    padding: 10px 16px;
  }
  .site-header .logo img {
    width: 40px;
    height: 40px;
  }
  .site-header .logo span {
    font-size: 17px;
  }
  .site-header .auth-buttons .btn {
    padding: 8px 13px;
    font-size: 13px;
  }
}

@media (prefers-reduced-motion: reduce) {
  header.site-header nav,
  .site-header .auth-buttons .btn {
    transition: none;
  }
}