/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.5rem;
  font-size: 0.85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  border: 1px solid var(--secondary);
  background: transparent;
  color: var(--secondary);
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--secondary);
  z-index: -1;
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform var(--transition-normal);
}

.btn:hover {
  color: var(--primary);
}

.btn:hover::before {
  transform: scaleY(1);
}

.btn-primary {
  background: var(--secondary);
  color: var(--primary);
}

.btn-primary::before {
  background: var(--bg-light);
}

.btn-primary:hover {
  color: var(--primary);
  border-color: var(--bg-light);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1rem 0;
  z-index: 1000;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background 0.4s ease, padding 0.4s ease;
  background: var(--bg-dark);
  border-bottom: 1px solid rgba(201, 163, 78, 0.15);
  transform: translateY(0);
}

.header.scroll-down {
  transform: translateY(-100%);
}

.header.scroll-up {
  background: rgba(18, 8, 26, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 0.8rem 0;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo img {
  height: 60px;
  transition: height var(--transition-normal);
}

.header.scrolled .logo img {
  height: 45px;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  position: relative;
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--secondary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-normal);
}

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

.nav-links a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-icons {
  display: flex;
  gap: 1.5rem;
}

.header-icons button {
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 1.2rem;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.header-icons button:hover {
  color: var(--secondary);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1002;
  border: none;
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 30px;
  height: 1px;
  background-color: var(--text-light);
  transition: all var(--transition-normal);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Fullscreen Search */
.search-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--primary);
  z-index: 1001;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.search-overlay.active {
  opacity: 1;
  visibility: visible;
}

.search-close {
  position: absolute;
  top: 2rem;
  right: 2rem;
  background: transparent;
  border: none;
  color: var(--text-light);
  font-size: 2rem;
  cursor: pointer;
}

.search-form {
  width: 100%;
  max-width: 800px;
  padding: 0 2rem;
}

.search-input {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border-light);
  color: var(--text-light);
  font-size: clamp(2rem, 4vw, 4rem);
  font-family: var(--font-heading);
  padding: 1rem 0;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--secondary);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-links, .header-icons .icon-hidden-mobile {
    display: none;
  }
  
  .menu-toggle {
    display: flex;
  }
}

/* Mobile Nav Overlay */
.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: var(--bg-darker);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.mobile-nav.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav ul {
  list-style: none;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.mobile-nav a {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  color: var(--text-light);
  transition: color var(--transition-fast);
}

.mobile-nav a:hover {
  color: var(--secondary);
}

/* Footer */
.footer {
  background: var(--bg-darker);
  padding-top: 6rem;
  border-top: 1px solid var(--border-light);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 2rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-col a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--secondary);
}

.footer-bottom {
  padding: 2rem 0;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.newsletter-form {
  display: flex;
  margin-top: 1.5rem;
  border-bottom: 1px solid var(--border-light);
}

.newsletter-form input {
  background: transparent;
  border: none;
  color: var(--text-light);
  padding: 0.8rem 0;
  width: 100%;
  outline: none;
}

.newsletter-form button {
  background: transparent;
  border: none;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  cursor: pointer;
  padding-left: 1rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
}