/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 12px 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--clr-border);
  transition: var(--transition);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.navbar-brand { font-size: 1.1rem; font-weight: 700; letter-spacing: -0.01em; }
.navbar-brand span { color: var(--clr-accent); }
.navbar-links { display: flex; align-items: center; gap: var(--space-lg); }
.navbar-links a {
  font-size: var(--text-sm);
  color: var(--clr-text-secondary);
  transition: var(--transition);
  position: relative;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 1px;
  background: var(--clr-text);
  transition: var(--transition);
}
.navbar-links a:hover { color: var(--clr-text); }
.navbar-links a:hover::after { width: 100%; }
.nav-controls { display: flex; align-items: center; gap: var(--space-sm); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}
.hero-text h1 {
  font-size: var(--text-3xl);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-sm);
}
.hero-text .hero-title {
  font-size: var(--text-xl);
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: var(--space-md);
}
.hero-text .hero-subtitle {
  font-size: var(--text-md);
  color: var(--clr-text-secondary);
  line-height: 1.8;
  max-width: 520px;
}
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
.stat-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  transition: var(--transition);
}
.stat-card:hover { border-color: var(--clr-text-muted); transform: translateY(-2px); }
.stat-number {
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--clr-text);
  line-height: 1;
  margin-bottom: var(--space-xs);
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--clr-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-xl);
}
.about-bio {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
}
.about-bio p {
  color: var(--clr-text-secondary);
  line-height: 1.9;
  font-size: var(--text-base);
}
.about-credentials { display: flex; flex-direction: column; gap: var(--space-md); }
.credential-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: var(--transition);
}
.credential-card:hover { border-color: var(--clr-text-muted); }
.credential-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.1);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 12px;
  font-size: var(--text-xl);
}
.credential-label {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}
.credential-value { font-size: var(--text-md); font-weight: 600; }

/* ===== TECH STACK ===== */
.tech-controls {
  display: flex;
  gap: 12px;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  align-items: center;
}
.tech-filter-group { display: flex; gap: var(--space-sm); flex-wrap: wrap; }
.tech-filter-btn {
  padding: 6px 16px;
  border: 1px solid var(--clr-border);
  background: transparent;
  color: var(--clr-text-secondary);
  border-radius: 20px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: var(--transition);
}
.tech-filter-btn:hover { border-color: var(--clr-text-muted); color: var(--clr-text); }
.tech-filter-btn.active { background: var(--clr-accent); border-color: var(--clr-accent); color: white; }
.tech-search {
  flex: 1;
  min-width: 200px;
  padding: 8px 16px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 20px;
  color: var(--clr-text);
  font-size: var(--text-sm);
  outline: none;
  transition: var(--transition);
}
.tech-search:focus { border-color: var(--clr-accent); }
.tech-search::placeholder { color: var(--clr-text-muted); }
.tech-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.tech-item {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  transition: var(--transition);
}
.tech-item:hover { border-color: var(--clr-border-hover); }
.tech-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-sm);
}
.tech-item-name { font-size: var(--text-base); font-weight: 500; }
.tech-item-proficiency {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  font-weight: 600;
}
.tech-bar { height: 4px; background: var(--clr-border); border-radius: 2px; overflow: hidden; }
.tech-bar-fill {
  height: 100%;
  background: var(--clr-accent);
  border-radius: 2px;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== PROJECTS ===== */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.project-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.4s ease, box-shadow 0.4s ease;
}
.project-card:hover { transform: translateY(-6px); }
.project-glow {
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
  z-index: 0;
}
.project-card:hover .project-glow { opacity: 0.08; }
.project-glow.indigo { background: radial-gradient(circle, var(--glow-indigo), transparent 70%); }
.project-glow.cyan { background: radial-gradient(circle, var(--glow-cyan), transparent 70%); }
.project-glow.emerald { background: radial-gradient(circle, var(--glow-emerald), transparent 70%); }
.project-glow.violet { background: radial-gradient(circle, var(--glow-violet), transparent 70%); }
.project-glow.amber { background: radial-gradient(circle, var(--glow-amber), transparent 70%); }
.project-card:hover { border-color: var(--clr-text-muted); }
.project-card:hover .project-glow { opacity: 0.1; }

.project-card.indigo-border:hover { box-shadow: 0 0 30px -8px rgba(99, 102, 241, 0.3); border-color: rgba(99, 102, 241, 0.3); }
.project-card.cyan-border:hover { box-shadow: 0 0 30px -8px rgba(6, 182, 212, 0.3); border-color: rgba(6, 182, 212, 0.3); }
.project-card.emerald-border:hover { box-shadow: 0 0 30px -8px rgba(16, 185, 129, 0.3); border-color: rgba(16, 185, 129, 0.3); }
.project-card.violet-border:hover { box-shadow: 0 0 30px -8px rgba(139, 92, 246, 0.3); border-color: rgba(139, 92, 246, 0.3); }
.project-card.amber-border:hover { box-shadow: 0 0 30px -8px rgba(245, 158, 11, 0.3); border-color: rgba(245, 158, 11, 0.3); }

.project-content { position: relative; z-index: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--space-md); }
.project-tag {
  padding: 3px 10px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 12px;
  font-size: var(--text-xs);
  color: var(--clr-text-secondary);
}
.project-title { font-size: var(--text-lg); font-weight: 700; margin-bottom: 10px; line-height: 1.4; }
.project-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}
.project-links { display: flex; gap: 12px; }
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  color: var(--clr-text-secondary);
  transition: var(--transition);
}
.project-link:hover { border-color: var(--clr-text-muted); color: var(--clr-text); }

/* ===== TIMELINE ===== */
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline::before {
  content: '';
  position: absolute;
  left: 24px; top: 0; bottom: 0;
  width: 1px;
  background: var(--clr-border);
}
body.rtl .timeline::before { left: auto; right: 24px; }
.timeline-item { padding-left: 56px; padding-bottom: var(--space-2xl); position: relative; }
body.rtl .timeline-item { padding-left: 0; padding-right: 56px; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: 16px; top: 4px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 3px solid var(--clr-bg);
  outline: 1px solid var(--clr-accent);
}
body.rtl .timeline-dot { left: auto; right: 16px; }
.timeline-content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: var(--transition);
}
.timeline-content:hover { border-color: var(--clr-border-hover); }
.timeline-period {
  display: inline-block;
  padding: 2px 10px;
  background: rgba(99, 102, 241, 0.1);
  border-radius: 12px;
  font-size: var(--text-xs);
  color: var(--clr-accent);
  margin-bottom: var(--space-sm);
}
.timeline-company { font-size: 1.1rem; font-weight: 700; margin-bottom: 2px; }
.timeline-role {
  font-size: var(--text-base);
  color: var(--clr-text-secondary);
  margin-bottom: 12px;
}
.timeline-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-secondary);
  line-height: 1.8;
}

/* ===== ROADMAP ===== */
.roadmap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
.roadmap-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: var(--transition);
}
.roadmap-card:hover { border-color: var(--clr-border-hover); transform: translateY(-2px); }
.roadmap-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-md);
}
.roadmap-status.active { background: rgba(16, 185, 129, 0.1); color: var(--clr-success); }
.roadmap-status.learning { background: rgba(99, 102, 241, 0.1); color: var(--clr-accent); }
.roadmap-status.research { background: rgba(245, 158, 11, 0.1); color: var(--glow-amber); }
.roadmap-status-dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.roadmap-title { font-size: var(--text-md); font-weight: 700; margin-bottom: 10px; }
.roadmap-desc {
  font-size: 0.85rem;
  color: var(--clr-text-secondary);
  line-height: 1.7;
}

/* ===== CONTACT ===== */
.contact-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
.contact-info { display: flex; flex-direction: column; gap: var(--space-md); }
.contact-info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: var(--space-md);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.contact-info-item:hover { border-color: var(--clr-border-hover); }
.contact-info-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(99, 102, 241, 0.1);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--text-md); flex-shrink: 0;
}
.contact-info-text { font-size: var(--text-base); color: var(--clr-text-secondary); word-break: break-all; }
.contact-info-text strong {
  color: var(--clr-text);
  display: block;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}
.contact-form-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 28px;
}
.form-group { margin-bottom: var(--space-md); }
.form-group label {
  display: block;
  font-size: var(--text-xs);
  color: var(--clr-text-secondary);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-size: var(--text-base);
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--clr-accent); }
.form-group textarea { min-height: 100px; resize: vertical; }
.form-actions { display: flex; gap: 12px; }

/* ===== INBOX ===== */
.inbox-section { margin-top: var(--space-xl); }
.inbox-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}
.inbox-title { font-size: var(--text-md); font-weight: 700; }
.inbox-count {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  background: var(--clr-surface);
  padding: 2px 10px;
  border-radius: 12px;
  border: 1px solid var(--clr-border);
}
.inbox-list { display: flex; flex-direction: column; gap: var(--space-sm); }
.inbox-item {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  transition: var(--transition);
}
.inbox-item:hover { border-color: var(--clr-border-hover); }
.inbox-item-content { flex: 1; min-width: 0; }
.inbox-item-sender { font-size: 0.85rem; font-weight: 600; margin-bottom: 2px; }
.inbox-item-subject { font-size: var(--text-xs); color: var(--clr-text-secondary); margin-bottom: 4px; }
.inbox-item-message {
  font-size: var(--text-xs);
  color: var(--clr-text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.inbox-item-delete {
  background: none; border: none;
  color: var(--clr-text-muted);
  cursor: pointer;
  font-size: var(--text-md);
  padding: 4px;
  transition: var(--transition);
  flex-shrink: 0;
}
.inbox-item-delete:hover { color: var(--clr-error); }
.inbox-empty {
  text-align: center;
  padding: 40px;
  color: var(--clr-text-muted);
  font-size: var(--text-base);
}

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--clr-border);
  padding: 24px 0;
  text-align: center;
}
.footer-content {
  font-size: var(--text-sm);
  color: var(--clr-text-muted);
}
.footer-sep {
  margin: 0 12px;
  color: var(--clr-border);
}

/* ===== SERVICES ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-lg);
}
.service-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: var(--transition);
  text-align: center;
}
.service-card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(30, 81, 216, 0.12);
}
.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent), #6366f1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto var(--space-md);
}
.service-title {
  font-size: var(--text-md);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.service-desc {
  font-size: var(--text-sm);
  color: var(--clr-text-secondary);
  line-height: 1.7;
}

/* ===== GALLERY ===== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}
.gallery-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  transition: var(--transition);
}
.gallery-card:hover {
  transform: translateY(-4px);
  border-color: var(--clr-accent);
  box-shadow: 0 12px 32px rgba(30, 81, 216, 0.15);
}
.gallery-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.gallery-card:hover img {
  transform: scale(1.05);
}
.gallery-card-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.75));
  color: #fff;
}
.gallery-card-overlay .title {
  font-size: var(--text-md);
  font-weight: 700;
}
.gallery-card-overlay .sub {
  font-size: var(--text-xs);
  opacity: 0.85;
  margin-top: 2px;
}

/* ===== GALLERY DETAIL MODAL ===== */
.gallery-modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.85);
  z-index: 3000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.gallery-modal.open { display: flex; }
.gallery-modal-content {
  background: var(--clr-surface);
  border-radius: var(--radius-lg);
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--clr-border);
}
.gallery-modal img {
  width: 100%;
  max-height: 400px;
  object-fit: cover;
  display: block;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.gallery-modal-body {
  padding: var(--space-xl);
}
.gallery-modal-title {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-sm);
}
.gallery-modal-desc {
  font-size: var(--text-base);
  color: var(--clr-text-secondary);
  line-height: 1.8;
}
.gallery-modal-close {
  position: absolute;
  top: 24px;
  right: 32px;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  background: none;
  border: none;
  opacity: 0.8;
  transition: var(--transition);
}
.gallery-modal-close:hover { opacity: 1; }

.light-mode .gallery-card {
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.light-mode .gallery-modal-content {
  background: #ffffff;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-text .hero-subtitle { max-width: 100%; }
  .about-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .roadmap-grid { grid-template-columns: 1fr; max-width: 500px; margin: 0 auto; }
  .contact-wrapper { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: var(--space-2xl) 0; }
  .section-title { font-size: 1.5rem; }
  .hero-text h1 { font-size: var(--text-2xl); }
  .navbar-links { display: none; }
  .tech-grid { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
}