/* ================================
   NAVBAR
================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: var(--z-navbar);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(0, 0, 0, 0.8);
  border-bottom: 1px solid var(--glass-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.nav-brand span {
  color: var(--accent-blue);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  position: relative;
  padding: var(--space-sm) 0;
  transition: color var(--transition-base);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: var(--z-modal);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: all var(--transition-base);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================
   BUTTONS
================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 4px 20px var(--glow-blue);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px var(--glow-blue);
}

.btn-secondary {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-blue);
  transform: translateY(-3px);
}

.btn-icon {
  width: 48px;
  height: 48px;
  padding: 0;
  border-radius: 50%;
}

/* ================================
   CARDS
================================ */
.card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-slow);
}

.card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  transform: translateY(-8px);
  box-shadow: var(--glass-shadow-hover);
}

/* ================================
   TAGS & BADGES
================================ */
.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  transition: all var(--transition-base);
}

.tag:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-blue);
  color: var(--text-primary);
}

.tag.active {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
  color: white;
}

/* ================================
   FORMS
================================ */
.form-group {
  margin-bottom: var(--space-xl);
}

.form-label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-base);
  transition: all var(--transition-base);
}

.form-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px var(--glow-blue);
}

.form-input::placeholder {
  color: var(--text-muted);
}

textarea.form-input {
  resize: vertical;
  min-height: 150px;
}

/* ================================
   PROGRESS RING
================================ */
.progress-ring {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.progress-ring svg {
  transform: rotate(-90deg);
}

.progress-ring__circle {
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.progress-ring__text {
  position: absolute;
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
}

/* ================================
   TIMELINE
================================ */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--glass-border);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-3xl);
  opacity: 0;
  transform: translateX(-20px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.timeline-item.active {
  opacity: 1;
  transform: translateX(0);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -44px;
  top: 0;
  width: 10px;
  height: 10px;
  background: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--glow-blue);
}

.timeline-year {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--accent-blue);
  margin-bottom: var(--space-sm);
}

.timeline-content {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.timeline-content:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

/* ================================
   CAROUSEL
================================ */
.carousel {
  position: relative;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transition: transform var(--transition-slow);
}

.carousel-item {
  flex: 0 0 100%;
  padding: 0 var(--space-md);
}

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.carousel-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel-btn:hover {
  background: var(--glass-bg-hover);
  border-color: var(--accent-blue);
}

.carousel-dots {
  display: flex;
  gap: var(--space-sm);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--glass-border);
  cursor: pointer;
  transition: all var(--transition-base);
}

.carousel-dot.active {
  background: var(--accent-blue);
  width: 24px;
  border-radius: var(--radius-full);
}

/* ================================
   LIGHTBOX
================================ */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.lightbox-close {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: white;
  font-size: var(--text-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: rotate(90deg);
}