/* ============================================
   沈图南 - Personal Portfolio
   Dark Cyberpunk Style (Updated)
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #0f0f1a;
  --bg-card: #111125;
  --bg-card-hover: #161630;
  --text-primary: #e0e0e0;
  --text-secondary: #8888aa;
  --text-muted: #555577;
  --accent-1: #6c63ff;
  --accent-2: #00d4ff;
  --accent-3: #ff6b9d;
  --gradient-main: linear-gradient(135deg, #6c63ff 0%, #00d4ff 50%, #ff6b9d 100%);
  --gradient-glow: linear-gradient(135deg, rgba(108,99,255,0.15) 0%, rgba(0,212,255,0.15) 50%, rgba(255,107,157,0.15) 100%);
  --border-color: rgba(255,255,255,0.06);
  --border-glow: rgba(108,99,255,0.3);
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-code: 'Fira Code', monospace;
  --transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-1) var(--bg-primary);
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-1); border-radius: 3px; }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }

/* ---------- Cursor Glow ---------- */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,99,255,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}

/* ---------- Navigation ---------- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(10,10,15,0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

nav.scrolled {
  padding: 0.8rem 3rem;
  background: rgba(10,10,15,0.95);
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.nav-logo .accent {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-main);
  transition: width 0.3s ease;
}

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

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  transition: var(--transition);
}

.lang-toggle:hover {
  border-color: var(--accent-2);
  color: var(--accent-2);
  background: rgba(0,212,255,0.06);
}

.lang-toggle i {
  font-size: 0.9rem;
}

.nav-cta {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--accent-1);
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-1);
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--accent-1);
  color: white;
  box-shadow: 0 0 20px rgba(108,99,255,0.4);
}

/* ---------- Hero Section ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 6rem 3rem 2rem;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 30%, transparent 100%);
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: float 8s ease-in-out infinite;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(108,99,255,0.3), transparent);
  top: -10%;
  right: -5%;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0,212,255,0.2), transparent);
  bottom: -5%;
  left: -5%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 750px;
}

.hero-badge {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: rgba(108,99,255,0.1);
  border: 1px solid rgba(108,99,255,0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-bottom: 2rem;
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.hero-title {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 1.5rem;
}

.hero-greeting {
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--accent-2);
  font-family: var(--font-code);
  animation: fadeInUp 0.6s ease 0.1s forwards;
  opacity: 0;
}

.hero-name {
  font-size: 4.5rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  animation: fadeInUp 0.6s ease 0.2s forwards;
  opacity: 0;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-tagline {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-height: 2.5rem;
  animation: fadeInUp 0.6s ease 0.3s forwards;
  opacity: 0;
}

.cursor-blink {
  color: var(--accent-1);
  animation: blink 0.8s step-end infinite;
}

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

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.6s ease 0.4s forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  animation: fadeInUp 0.6s ease 0.5s forwards;
  opacity: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.8rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gradient-main);
  color: white;
  border: none;
  box-shadow: 0 4px 20px rgba(108,99,255,0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,99,255,0.5);
}

.btn-primary i {
  transition: transform 0.3s ease;
}

.btn-primary:hover i {
  transform: translateX(4px);
}

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

.btn-outline:hover {
  border-color: var(--accent-1);
  color: var(--accent-1);
  transform: translateY(-2px);
}

.hero-socials {
  display: flex;
  gap: 1rem;
  animation: fadeInUp 0.6s ease 0.6s forwards;
  opacity: 0;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition);
}

.social-link:hover {
  color: var(--accent-1);
  border-color: var(--accent-1);
  background: rgba(108,99,255,0.1);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(108,99,255,0.2);
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 3rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  animation: fadeInUp 0.6s ease 0.8s forwards;
  opacity: 0;
}

.scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, var(--accent-1), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
}

.scroll-indicator span {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  writing-mode: vertical-rl;
}

/* ---------- Section Common ---------- */
.section {
  padding: 6rem 3rem;
  position: relative;
}

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

.section-title {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.section-title::after {
  content: '';
  flex: 1;
  max-width: 300px;
  height: 1px;
  background: linear-gradient(to right, var(--border-color), transparent);
  margin-left: 1rem;
}

.section-num {
  font-family: var(--font-code);
  font-size: 1.2rem;
  color: var(--accent-1);
  font-weight: 400;
}

/* ---------- About Section ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1.2rem;
  font-size: 1.02rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.highlight-item {
  text-align: center;
}

.highlight-num {
  font-size: 2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.highlight-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: 12px;
  overflow: hidden;
}

.image-placeholder {
  width: 100%;
  height: 100%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.image-placeholder i {
  font-size: 5rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.5;
}

.image-border {
  position: absolute;
  top: 1.5rem;
  left: 1.5rem;
  right: -1.5rem;
  bottom: -1.5rem;
  border: 2px solid var(--accent-1);
  border-radius: 12px;
  z-index: -1;
  opacity: 0.3;
}

/* ---------- Skills Section ---------- */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-main);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.skill-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(108,99,255,0.1);
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--gradient-glow);
  margin-bottom: 1.2rem;
  font-size: 1.3rem;
  color: var(--accent-2);
}

.skill-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  padding: 0.3rem 0.8rem;
  background: rgba(108,99,255,0.08);
  border: 1px solid rgba(108,99,255,0.15);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-family: var(--font-code);
}

/* Language Bar */
.lang-bar {
  display: flex;
  gap: 2rem;
  padding: 1.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
}

.lang-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.lang-flag {
  font-size: 1.4rem;
}

.lang-name {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.lang-level {
  font-size: 0.75rem;
  color: var(--accent-2);
  background: rgba(0,212,255,0.1);
  padding: 0.15rem 0.6rem;
  border-radius: 20px;
  white-space: nowrap;
}

.lang-meter {
  flex: 1;
  height: 4px;
  background: var(--border-color);
  border-radius: 2px;
  overflow: hidden;
}

.lang-fill {
  height: 100%;
  background: var(--gradient-main);
  border-radius: 2px;
  transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Experience / Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent-1), var(--accent-2), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 3rem;
}

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

.timeline-marker {
  position: absolute;
  left: -2rem;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2px solid var(--accent-2);
  z-index: 1;
}

.timeline-marker.current {
  background: var(--accent-1);
  border-color: var(--accent-1);
  box-shadow: 0 0 12px rgba(108,99,255,0.5);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 12px rgba(108,99,255,0.5); }
  50% { box-shadow: 0 0 24px rgba(108,99,255,0.8); }
}

.timeline-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  transition: var(--transition);
}

.timeline-content:hover {
  border-color: var(--border-glow);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.5rem;
  gap: 1rem;
}

.timeline-header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.timeline-company {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.timeline-date {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent-2);
  background: rgba(0,212,255,0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  white-space: nowrap;
}

.timeline-list {
  list-style: none;
  padding: 0;
}

.timeline-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.8rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.timeline-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent-1);
}

.timeline-list li strong {
  color: var(--accent-2);
  font-weight: 600;
}

.timeline-phases {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.phase {
  padding: 1rem 1.2rem;
  background: rgba(108,99,255,0.04);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.phase-badge {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-1);
  margin-bottom: 0.3rem;
}

.phase-period {
  font-family: var(--font-code);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.5rem;
}

.phase p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ---------- Education Section ---------- */
.education-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.edu-card {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.8rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: var(--transition);
}

.edu-card:hover {
  border-color: var(--border-glow);
  transform: translateX(8px);
  box-shadow: 0 4px 20px rgba(108,99,255,0.08);
}

.edu-icon {
  font-size: 2.5rem;
  flex-shrink: 0;
}

.edu-body {
  flex: 1;
}

.edu-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.edu-school {
  color: var(--accent-2);
  font-size: 0.9rem;
  margin-bottom: 0.2rem;
}

.edu-detail {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.edu-date {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent-1);
  background: rgba(108,99,255,0.1);
  padding: 0.3rem 0.8rem;
  border-radius: 6px;
  flex-shrink: 0;
}

.edu-arrow {
  color: var(--text-muted);
  font-size: 0.9rem;
  flex-shrink: 0;
}

/* ---------- Projects Section ---------- */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 5rem;
}

.project-card {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: center;
}

.project-card.reverse {
  grid-template-columns: 1.2fr 1fr;
  direction: rtl;
}

.project-card.reverse > * {
  direction: ltr;
}

.project-image {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 16/10;
  border: 1px solid var(--border-color);
}

.project-placeholder {
  width: 100%;
  height: 100%;
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-placeholder i {
  font-size: 4rem;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.3;
}

.project-label {
  font-family: var(--font-code);
  font-size: 0.8rem;
  color: var(--accent-1);
  margin-bottom: 0.8rem;
}

.project-name {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
  transition: var(--transition);
}

.project-card:hover .project-name {
  color: var(--accent-2);
}

.project-desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-tech span {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent-2);
}

/* ---------- Mini Projects ---------- */
.mini-projects {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.mini-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.mini-title i {
  color: var(--accent-3);
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.2rem;
}

.mini-card {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  padding: 1.4rem 1.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  transition: var(--transition);
  cursor: pointer;
}

.mini-card:hover {
  border-color: var(--accent-3);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(255,107,157,0.1);
}

.mini-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.mini-body {
  flex: 1;
}

.mini-body h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.mini-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.mini-arrow {
  color: var(--text-muted);
  font-size: 0.85rem;
  flex-shrink: 0;
  transition: var(--transition);
}

.mini-card:hover .mini-arrow {
  color: var(--accent-3);
  transform: translateX(4px);
}

/* ---------- Achievements Section ---------- */
.achievements-grid {
  display: grid;
  grid-template-columns: 0.4fr 0.6fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.col-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.col-title i {
  color: var(--accent-1);
}

/* Awards */
.award-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.award-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.award-body h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.2rem;
}

.award-body p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Publications */
.pub-item {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 1rem;
  align-items: flex-start;
}

.pub-year {
  font-family: var(--font-code);
  font-size: 0.75rem;
  color: var(--accent-1);
  background: rgba(108,99,255,0.1);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}

.pub-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.pub-more {
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ---------- Interests Section ---------- */
.interests-section {
  padding-top: 2rem;
  border-top: 1px solid var(--border-color);
}

.interests-grid {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.interest-card {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  transition: var(--transition);
}

.interest-card:hover {
  border-color: var(--accent-1);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.interest-icon {
  font-size: 1.3rem;
}

.interest-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* ---------- Contact Section ---------- */
.contact-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.contact-text {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  padding: 1rem 2.5rem;
  border: 2px solid var(--accent-1);
  border-radius: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-1);
  transition: var(--transition);
  margin-bottom: 3rem;
}

.contact-btn:hover {
  background: var(--accent-1);
  color: white;
  box-shadow: 0 0 30px rgba(108,99,255,0.4);
  transform: translateY(-3px);
}

.contact-btn i {
  transition: transform 0.3s ease;
}

.contact-btn:hover i {
  transform: translateX(4px) translateY(-4px);
}

.contact-socials {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.contact-socials .social-link {
  width: auto;
  padding: 0;
  height: auto;
  border: none;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.contact-socials .social-link:hover {
  background: none;
  box-shadow: none;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  padding: 2rem 3rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-sub {
  margin-top: 0.3rem;
  font-size: 0.75rem;
}

.accent {
  color: var(--accent-1);
}

/* ---------- Animations ---------- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  .hero { padding: 6rem 1.5rem 2rem; }
  .hero-name { font-size: 3rem; }
  .hero-tagline { font-size: 1.4rem; }
  .section { padding: 4rem 1.5rem; }
  .about-grid { grid-template-columns: 1fr; gap: 2rem; }
  .about-image { display: none; }
  .about-highlights { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: 1fr; }
  .lang-bar { flex-direction: column; gap: 1rem; }
  .timeline-header { flex-direction: column; }
  .timeline-phases { grid-template-columns: 1fr; }
  .project-card, .project-card.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }
  .achievements-grid { grid-template-columns: 1fr; }
  .contact-socials { flex-direction: column; align-items: center; }
  .interests-grid { justify-content: center; }
  .mini-grid { grid-template-columns: 1fr; }
}