*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* --- SKIP TO CONTENT --- */
.skip-to-content {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 10000;
  padding: 12px 24px;
  background: var(--sky);
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 0 0 8px 8px;
  text-decoration: none;
  transition: top 200ms ease;
}

.skip-to-content:focus {
  top: 0;
}

:root, [data-theme="dark"] {
  --navy: #0F172A;
  --navy-light: #1E293B;
  --slate: #334155;
  --blue: #0369A1;
  --blue-dark: #075985;
  --sky: #0EA5E9;
  --sky-glow: #38BDF8;
  --green: #22C55E;
  --bg: #0F172A;
  --surface: #1E293B;
  --surface-hover: #253349;
  --text-strong: #F8FAFC;
  --text: #F8FAFC;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --border: #334155;
  --border-light: #475569;
  --nav-bg: rgba(15, 23, 42, 0.85);
  --card-shadow: rgba(0,0,0,0.3);
}

[data-theme="light"] {
  --navy: #0F172A;
  --navy-light: #F1F5F9;
  --slate: #334155;
  --blue: #0369A1;
  --blue-dark: #075985;
  --sky: #0284C7;
  --sky-glow: #0EA5E9;
  --green: #16A34A;
  --bg: #FFFFFF;
  --surface: #F8FAFC;
  --surface-hover: #F1F5F9;
  --text-strong: #0F172A;
  --text: #0F172A;
  --text-muted: #475569;
  --text-dim: #64748B;
  --border: #E2E8F0;
  --border-light: #CBD5E1;
  --nav-bg: rgba(255, 255, 255, 0.85);
  --card-shadow: rgba(0,0,0,0.08);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Space Grotesk', -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 300ms ease, color 300ms ease;
}

/* --- NAVBAR --- */
.navbar {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 10px 32px;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: box-shadow 300ms ease, background 300ms ease;
}

.navbar.scrolled {
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 2px;
  color: var(--sky);
  margin-right: 16px;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 20px;
  transition: color 200ms, background 200ms;
  cursor: pointer;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 4px;
  position: relative;
  width: 28px;
  height: 28px;
}

.nav-line { transition: transform 300ms ease, opacity 200ms ease; transform-origin: center; }
.nav-toggle.active .nav-line-1 { transform: translateY(6px) rotate(45deg); }
.nav-toggle.active .nav-line-2 { opacity: 0; }
.nav-toggle.active .nav-line-3 { transform: translateY(-6px) rotate(-45deg); }

.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  backdrop-filter: blur(4px);
  z-index: 998;
  opacity: 0;
  transition: opacity 300ms ease;
}

.nav-overlay.show {
  display: block;
  opacity: 1;
}

/* --- THEME TOGGLE --- */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-left: 8px;
  transition: color 200ms, border-color 200ms, background 200ms;
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--sky);
  border-color: var(--sky);
  background: var(--surface-hover);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

/* --- HERO CANVAS --- */
.hero-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* --- TYPING CURSOR --- */
.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--sky);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink-cursor 0.8s step-end infinite;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* --- HERO --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(14, 165, 233, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(3, 105, 161, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(51, 65, 85, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51, 65, 85, 0.15) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 50%, black, transparent);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 800px;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  border: 1px solid var(--border);
  border-radius: 50px;
  font-size: 0.82rem;
  color: var(--sky);
  font-weight: 500;
  margin-bottom: 28px;
  background: rgba(14, 165, 233, 0.06);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { opacity: 0.8; box-shadow: 0 0 0 6px rgba(34, 197, 94, 0); }
}

.hero-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3.5rem, 10vw, 6.5rem);
  font-weight: 400;
  letter-spacing: 4px;
  line-height: 1;
  color: var(--text-strong);
  margin-bottom: 12px;
}

.hero-name .highlight {
  background: linear-gradient(135deg, var(--sky), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-muted);
  font-weight: 400;
  margin-bottom: 32px;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  border-radius: 8px;
  text-decoration: none;
  transition: all 200ms ease;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: var(--sky-glow);
  box-shadow: 0 0 24px rgba(14, 165, 233, 0.3);
}

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

.btn-ghost:hover {
  border-color: var(--sky);
  color: var(--sky);
}

.btn-icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

.hero-stats dd {
  margin: 0;
}

.stat-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 2.4rem;
  letter-spacing: 1px;
  color: var(--sky);
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-dim);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --- ABOUT --- */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: center;
}

.about-photo-wrapper {
  position: relative;
}

.about-photo-wrapper::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--sky), var(--blue), var(--sky));
  z-index: 0;
}

.about-photo {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 18px;
  display: block;
}

.about-text h3 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  letter-spacing: 2px;
  color: var(--text-strong);
  margin-bottom: 12px;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 12px;
}

.about-text p strong {
  color: var(--sky);
  font-weight: 600;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 20px;
}

.about-highlight {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.about-highlight svg {
  width: 18px;
  height: 18px;
  fill: var(--sky);
  flex-shrink: 0;
}

/* --- SECTIONS --- */
section {
  padding: 100px 24px;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 0.9rem;
  letter-spacing: 4px;
  color: var(--sky);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.section-heading {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 3px;
  color: var(--text-strong);
  margin-bottom: 48px;
  line-height: 1.1;
}

/* --- EXPERIENCE --- */
.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(180deg, var(--sky), var(--blue), var(--border));
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: border-color 200ms, box-shadow 200ms, background 300ms ease;
}

.timeline-item:hover {
  border-color: var(--sky);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.07);
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 30px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--sky);
  border: 3px solid var(--navy);
  box-shadow: 0 0 0 2px var(--sky);
}

.tl-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.tl-company {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.4rem;
  letter-spacing: 1.5px;
  color: var(--text-strong);
}

.tl-date {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--sky);
  background: rgba(14, 165, 233, 0.1);
  padding: 3px 12px;
  border-radius: 4px;
  white-space: nowrap;
}

.tl-role {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--sky);
  margin-bottom: 4px;
}

.tl-location {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.tl-bullets {
  list-style: none;
  padding: 0;
}

.tl-bullets li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 6px;
}

.tl-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 2px;
  background: var(--sky);
  border-radius: 1px;
}

.tl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.tl-tag {
  padding: 3px 10px;
  font-size: 0.68rem;
  font-weight: 600;
  color: var(--sky);
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(14, 165, 233, 0.2);
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* --- PROJECTS --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 200ms, transform 200ms, box-shadow 200ms, background 300ms ease;
  display: flex;
  flex-direction: column;
  cursor: default;
}

.project-card:hover {
  border-color: var(--sky);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.pc-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 4px;
}

.pc-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14, 165, 233, 0.1);
  flex-shrink: 0;
}

.pc-icon svg {
  width: 20px;
  height: 20px;
  fill: var(--sky);
}

.pc-links {
  display: flex;
  gap: 8px;
}

.pc-links a {
  color: var(--text-dim);
  transition: color 200ms;
  cursor: pointer;
}

.pc-links a:hover {
  color: var(--sky);
}

.pc-links svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.pc-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 1.5px;
  color: var(--text-strong);
  margin-top: 16px;
  margin-bottom: 2px;
}

.pc-context {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 10px;
}

.pc-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 6px;
  flex-grow: 1;
}

.pc-bullets {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
  flex-grow: 1;
}

.pc-bullets li {
  position: relative;
  padding-left: 16px;
  font-size: 0.84rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 4px;
}

.pc-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 2px;
  background: var(--sky);
}

.pc-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.pc-tag {
  padding: 2px 8px;
  font-size: 0.66rem;
  font-weight: 600;
  color: var(--sky);
  background: rgba(14, 165, 233, 0.08);
  border: 1px solid rgba(14, 165, 233, 0.15);
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.pc-detail-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--sky);
  text-decoration: none;
  transition: gap 200ms, color 200ms;
  cursor: pointer;
}

.pc-detail-link:hover {
  gap: 10px;
  color: var(--sky-glow);
}

.pc-detail-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
}

/* --- SKILLS --- */
.skills-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 40px;
  align-items: start;
}

.radar-wrapper {
  position: relative;
  width: 380px;
  height: 380px;
}

.radar-wrapper canvas {
  width: 100%;
  height: 100%;
}

.radar-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  justify-content: center;
}

.radar-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 6px;
  transition: background 200ms;
}

.radar-legend-item:hover {
  background: var(--surface-hover);
}

.radar-legend-item.active {
  color: var(--text-strong);
  background: var(--surface);
}

.radar-legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.skills-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: border-color 200ms, background 300ms ease;
}

.skill-card:hover {
  border-color: var(--border-light);
}

.skill-card-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 2px;
  color: var(--sky);
  margin-bottom: 12px;
}

.skill-items {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.skill-pill {
  padding: 4px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--navy);
  border-radius: 6px;
  transition: color 200ms, background 200ms, transform 150ms ease, box-shadow 150ms ease;
}

.skill-pill:hover {
  color: var(--text-strong);
  background: var(--surface-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.15);
}

/* --- EDUCATION --- */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 200ms;
}

.edu-card:hover {
  border-color: var(--border-light);
}

.edu-card-school {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.3rem;
  letter-spacing: 1.5px;
  color: var(--text-strong);
  margin-bottom: 4px;
}

.edu-card-date {
  font-size: 0.78rem;
  color: var(--sky);
  font-weight: 600;
  margin-bottom: 8px;
}

.edu-card-degree {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.edu-card-gpa {
  font-size: 0.85rem;
  color: var(--sky);
  font-weight: 600;
  margin-top: 4px;
}

/* --- LANGUAGES --- */
.lang-grid {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.lang-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 28px;
  min-width: 160px;
  text-align: center;
  transition: border-color 200ms;
}

.lang-card:hover {
  border-color: var(--border-light);
}

.lang-card-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 1.5px;
  color: var(--text-strong);
}

.lang-card-level {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 2px;
}

/* --- CONTACT / FOOTER --- */
.contact-section {
  text-align: center;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.contact-heading {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 3px;
  color: var(--text-strong);
  margin-bottom: 12px;
}

.contact-sub {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 32px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: color 200ms, border-color 200ms, transform 150ms ease, box-shadow 150ms ease;
  cursor: pointer;
}

.contact-links a:hover {
  color: var(--sky);
  border-color: var(--sky);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--card-shadow);
}

.contact-links svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.footer-bar {
  color: var(--text-dim);
  font-size: 0.8rem;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  max-width: 1100px;
  margin: 0 auto;
}

/* --- PAGE TRANSITION --- */
.page-transition {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--navy);
  pointer-events: none;
  opacity: 0;
  transition: opacity 350ms ease;
}

.page-transition.active {
  opacity: 1;
  pointer-events: all;
}

/* --- TILT CARDS --- */
.tilt-card {
  transform-style: preserve-3d;
  perspective: 800px;
}

/* --- MAGNETIC BUTTON --- */
.btn-magnetic {
  position: relative;
  transition: all 200ms ease;
}

/* --- MICRO-INTERACTIONS --- */
.pc-icon {
  transition: transform 300ms ease, background 300ms ease;
}

.project-card:hover .pc-icon {
  transform: scale(1.1) rotate(-5deg);
}

.tl-tag, .pc-tag {
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.tl-tag:hover, .pc-tag:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(14, 165, 233, 0.12);
}

.about-highlight {
  transition: border-color 200ms, transform 150ms ease, box-shadow 150ms ease;
}

.about-highlight:hover {
  border-color: var(--sky);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--card-shadow);
}

.hero-badge {
  transition: border-color 300ms, box-shadow 300ms;
}

.hero-badge:hover {
  border-color: var(--sky);
  box-shadow: 0 0 20px rgba(14, 165, 233, 0.15);
}

.nav-logo {
  transition: text-shadow 200ms;
}

.nav-logo:hover {
  text-shadow: 0 0 16px rgba(14, 165, 233, 0.4);
}

.stat-num {
  transition: transform 200ms ease;
}

.stat-num:hover {
  transform: scale(1.1);
}

/* --- ANIMATIONS --- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-up { opacity: 1; transform: none; transition: none; }
  .badge-dot { animation: none; }
  html { scroll-behavior: auto; }
}

/* --- LIGHT MODE OVERRIDES --- */
[data-theme="light"] .hero-bg {
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(2, 132, 199, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(3, 105, 161, 0.05) 0%, transparent 50%);
}

[data-theme="light"] .hero-grid {
  background-image:
    linear-gradient(rgba(203, 213, 225, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(203, 213, 225, 0.4) 1px, transparent 1px);
}

[data-theme="light"] .navbar.scrolled {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}

[data-theme="light"] .hero-name .highlight {
  background: linear-gradient(135deg, var(--sky), var(--blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="light"] .btn-primary {
  background: var(--sky);
  color: #FFFFFF;
}

[data-theme="light"] .btn-primary:hover {
  background: var(--sky-glow);
}

[data-theme="light"] .tl-tag {
  color: var(--blue);
  background: rgba(3, 105, 161, 0.08);
  border-color: rgba(3, 105, 161, 0.2);
}

[data-theme="light"] .pc-tag {
  color: var(--blue);
  background: rgba(3, 105, 161, 0.06);
  border-color: rgba(3, 105, 161, 0.15);
}

[data-theme="light"] .tl-date {
  color: var(--blue);
  background: rgba(3, 105, 161, 0.08);
}

[data-theme="light"] .timeline-item::before {
  border-color: var(--bg);
}

[data-theme="light"] .project-card:hover {
  box-shadow: 0 12px 40px var(--card-shadow);
}

[data-theme="light"] .pc-icon {
  background: rgba(3, 105, 161, 0.08);
}

[data-theme="light"] .about-photo-wrapper::before {
  background: linear-gradient(135deg, var(--sky), var(--blue), var(--sky));
}

[data-theme="light"] .skill-pill {
  background: var(--bg);
  border: 1px solid var(--border);
}

[data-theme="light"] .skill-pill:hover {
  background: var(--surface-hover);
  border-color: var(--border-light);
}

[data-theme="light"] .contact-section {
  background: var(--surface);
}

[data-theme="light"] .exp-date,
[data-theme="light"] .edu-date {
  color: var(--blue);
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .navbar {
    top: 12px;
    left: 12px;
    right: 12px;
    transform: none;
    padding: 10px 20px;
    justify-content: space-between;
    border-radius: 16px;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100dvh;
    flex-direction: column;
    background: var(--bg);
    border-left: 1px solid var(--border);
    padding: 80px 24px 24px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 350ms cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }

  .nav-links.open { transform: translateX(0); }

  .nav-links a {
    font-size: 1.05rem;
    padding: 14px 16px;
    border-radius: 12px;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 250ms ease, transform 250ms ease, color 200ms, background 200ms;
  }

  .nav-links.open a {
    opacity: 1;
    transform: translateX(0);
  }

  .nav-links.open li:nth-child(1) a { transition-delay: 80ms; }
  .nav-links.open li:nth-child(2) a { transition-delay: 120ms; }
  .nav-links.open li:nth-child(3) a { transition-delay: 160ms; }
  .nav-links.open li:nth-child(4) a { transition-delay: 200ms; }
  .nav-links.open li:nth-child(5) a { transition-delay: 240ms; }
  .nav-links.open li:nth-child(6) a { transition-delay: 280ms; }

  .nav-toggle { display: block; z-index: 1000; }

  .hero { padding: 100px 20px 60px; }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  section { padding: 60px 20px; }

  .projects-grid,
  .edu-grid {
    grid-template-columns: 1fr;
  }

  .skills-container {
    grid-template-columns: 1fr;
  }

  .skills-layout {
    grid-template-columns: 1fr;
  }

  .radar-wrapper {
    width: 100%;
    max-width: 340px;
    height: 340px;
    margin: 0 auto;
  }

  .timeline { padding-left: 24px; }

  .timeline-item::before { left: -30px; }

  .tl-top { flex-direction: column; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    text-align: center;
  }

  .about-photo-wrapper {
    max-width: 220px;
    margin: 0 auto;
  }

  .about-highlights {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-name { letter-spacing: 2px; }
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 1.8rem; }
}