/* === Components: Nav, Cards, Buttons, Tags, Dividers === */

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 64px;
  background: rgba(10, 10, 11, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
}

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

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: 0.02em;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-expo);
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--accent);
}

@media (max-width: 640px) {
  .nav-links {
    gap: var(--space-lg);
  }

  .nav-links a {
    font-size: 0.8125rem;
  }
}

/* --- Footer --- */
.footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-text {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out-expo);
  text-decoration: none;
  border: none;
}

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

.btn-primary:hover {
  background: var(--accent-dim);
  color: var(--bg-primary);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-default);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

/* --- Tags --- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  letter-spacing: 0.02em;
}

.tag-accent {
  color: var(--accent);
  border-color: var(--accent-glow);
  background: rgba(245, 158, 11, 0.06);
}

/* --- Cards --- */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-default);
  transform: translateY(-2px);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.card-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
  max-width: 55ch;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.card-link {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-expo);
}

.card-link:hover {
  color: var(--accent-dim);
}

/* --- Project Card --- */
.project-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-normal) var(--ease-out-expo);
}

.project-card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--border-default);
  transform: translateY(-2px);
}

.project-card-body {
  padding: var(--space-xl);
}

.project-card-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-surface-raised);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
}

.project-card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.project-card-links {
  display: flex;
  gap: var(--space-lg);
  padding-top: var(--space-sm);
}

/* --- Link Row --- */
.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-xl);
  list-style: none;
}

.link-row a {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out-expo);
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

.link-row a:hover {
  color: var(--accent);
}

/* --- Contact Block --- */
.contact-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

@media (max-width: 640px) {
  .contact-block {
    grid-template-columns: 1fr;
  }
}

.contact-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}

.contact-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.contact-value {
  font-size: 1rem;
  color: var(--text-primary);
  word-break: break-all;
}

/* --- Avatar --- */
.contact-avatar {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-2xl);
}

.avatar-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-default);
  transition: border-color var(--duration-normal) var(--ease-out-expo);
}

.avatar-img:hover {
  border-color: var(--accent);
}

/* --- Section Divider --- */
.section-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-4xl) 0;
}

/* --- Status Indicator --- */
.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-right: var(--space-sm);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: var(--space-4xl) var(--space-xl);
}

.empty-state-icon {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--text-muted);
  margin-bottom: var(--space-lg);
}

.empty-state-title {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.empty-state-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 40ch;
  margin: 0 auto;
}