/* === FONTS === */

@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url(fonts/inter-variable.woff2) format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(fonts/inter-bold.ttf) format('truetype');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url(fonts/inter-extra-bold.ttf) format('truetype');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(fonts/jetbrains-mono-regular.ttf) format('truetype');
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(fonts/jetbrains-mono-medium.ttf) format('truetype');
}

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

:root {
  --bg-primary: #0d0d2b;
  --bg-secondary: #12121a;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-card-hover: rgba(34, 211, 238, 0.3);
  --text-primary: #e8eaf0;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --accent: #22d3ee;
  --accent-dim: rgba(34, 211, 238, 0.15);
  --accent-glow: rgba(34, 211, 238, 0.4);
  --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-2: linear-gradient(135deg, #63b3ed 0%, #b794f4 100%);
  --gradient-hero: linear-gradient(135deg, rgba(10, 10, 15, 0.85) 0%, rgba(18, 18, 26, 0.7) 50%, rgba(10, 10, 15, 0.9) 100%);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

/* === BACKGROUND LIGHTS === */
body::before,
body::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
}

body::before {
  width: 600px;
  height: 600px;
  top: -100px;
  left: -150px;
  background: radial-gradient(circle, rgba(244, 114, 182, 0.25) 0%, transparent 70%);
  animation: drift1 15s ease-in-out infinite;
}

body::after {
  width: 500px;
  height: 500px;
  bottom: 10%;
  right: -100px;
  background: radial-gradient(circle, rgba(134, 239, 172, 0.2) 0%, transparent 70%);
  animation: drift2 15s ease-in-out infinite;
}

@keyframes drift1 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(80px, 60px); }
  66% { transform: translate(-40px, 100px); }
}

@keyframes drift2 {
  0%, 100% { transform: translate(0, 0); }
  33% { transform: translate(-60px, -80px); }
  66% { transform: translate(50px, -40px); }
}

@keyframes drift3 {
  0%, 100% { transform: translate(-50%, -50%) translate(0, 0); }
  33% { transform: translate(-50%, -50%) translate(60px, -50px); }
  66% { transform: translate(-50%, -50%) translate(-40px, 60px); }
}

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--accent-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent-glow); }

/* === NAVIGATION === */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  background: rgba(10, 10, 15, 0.7);
  border-bottom: 1px solid var(--border-card);
  transition: var(--transition);
}

nav .nav-inner {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 6px;
  position: relative;
}

nav ul .nav-dot {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
  transition: left 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  pointer-events: none;
}

nav ul li a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
  letter-spacing: 0.01em;
}

nav ul li a.active {
  color: var(--text-primary);
}

nav ul li a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
  margin-left: auto;
}

.mobile-toggle:hover { background: rgba(255, 255, 255, 0.06); }

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

.mobile-nav-links li a {
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: var(--transition);
}

.mobile-nav-links li a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-card);
  padding: 16px 32px;
  z-index: 99;
  animation: slideDown 0.3s ease;
}

.mobile-menu.open { display: block; }

.mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu ul li a {
  display: block;
  text-decoration: none;
  color: var(--text-secondary);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 12px 16px;
  border-radius: 10px;
  transition: var(--transition);
}

.mobile-menu ul li a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === HERO SECTION === */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.10) 0%, transparent 70%);
  top: 50%;
  left: 30%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  animation: pulse 6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.6; }
  50% { transform: translate(-50%, -50%) scale(1.15); opacity: 1; }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 60px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  padding: 0 32px;
}

.hero-left {
  display: flex;
  flex-direction: column;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 100px;
  padding: 8px 20px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 28px;
  width: fit-content;
}

.hero-badge span {
  color: var(--text-muted);
}

.hero-left h1 {
  font-size: clamp(4rem, 8vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #ffffff 0%, var(--accent) 25%, #f59e0b 50%, var(--accent) 75%, #ffffff 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 40px rgba(34, 211, 238, 0.3);
  animation: shimmer 6s ease-in-out infinite;
}

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

.hero-left .subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #0d0d2b;
}

.btn-primary:hover {
  background: #67e8f9;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.3);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-card);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.hero-right {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.hero-avatar {
  width: 300px;
  height: 420px;
  border-radius: 24px;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.4);
  transition: var(--transition);
}

.hero-avatar:hover {
  border-color: rgba(34, 211, 238, 0.3);
  box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5), 0 0 40px rgba(34, 211, 238, 0.1);
  transform: translateY(-4px);
}

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 36px;
}

.hero-stat {
  text-align: center;
}

.hero-stat .number {
  display: block;
  font-size: 1.6rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
  background: var(--gradient-2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 500;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: bounce 2s ease-in-out infinite;
}

.hero-scroll::after {
  content: '';
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* === MAIN CONTENT === */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px;
}

/* === SECTION STYLES === */
section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  margin-bottom: 48px;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-label::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
}

/* === BIO SECTION === */
.bio-text {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--text-secondary);
  max-width: 780px;
}

.bio-text strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* === ABOUT SECTION === */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 40px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
}

.about-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.08);
}

.about-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 1.2rem;
}

.about-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.about-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === PROFILES === */
.profiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}

.profile-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  padding: 24px 16px;
  transition: var(--transition);
}

.profile-link:hover {
  color: var(--text-primary);
  border-color: var(--border-card-hover);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(34, 211, 238, 0.1);
}

.profile-link img {
  width: 40px;
  height: 40px;
  transition: var(--transition);
}

.profile-link:hover img {
  transform: scale(1.1);
}

.profile-link span {
  font-size: 0.8rem;
  font-weight: 500;
  text-align: center;
}

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

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), rgba(34, 211, 238, 0.1));
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  padding-bottom: 36px;
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: -37px;
  top: 8px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
}

.timeline-item .year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 4px;
}

.timeline-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.thesis-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-top: 12px;
}

.thesis-card .label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 6px;
}

.thesis-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.thesis-card .supervisor {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* === PUBLICATIONS === */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.pub-item {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 22px 26px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.pub-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0;
  transition: var(--transition);
}

.pub-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: translateX(4px);
}

.pub-item:hover::before { opacity: 1; }

.pub-item .pub-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 6px;
}

.pub-item .pub-authors {
  font-size: 0.84rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.pub-item .pub-title {
  font-size: 0.92rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 8px;
}

.pub-item .pub-journal {
  font-style: italic;
  color: var(--accent);
  font-weight: 500;
  font-size: 0.88rem;
}

.pub-item .pub-meta {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
}

.pub-item .pub-doi {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  margin-top: 10px;
  padding: 4px 10px;
  background: rgba(34, 211, 238, 0.08);
  border-radius: 6px;
  transition: var(--transition);
}

.pub-item .pub-doi:hover {
  color: var(--accent);
  background: rgba(34, 211, 238, 0.15);
}

.pub-show-more {
  display: flex;
  justify-content: center;
  margin-top: 24px;
}

.pub-show-more button {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  padding: 12px 32px;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.pub-show-more button:hover {
  color: var(--text-primary);
  border-color: var(--border-card-hover);
  background: var(--bg-card-hover);
}

/* === INTERESTS === */
.interests-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.interest-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 22px;
  transition: var(--transition);
}

.interest-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.08);
}

.interest-card .bullet {
  width: 8px;
  height: 8px;
  min-width: 8px;
  border-radius: 50%;
  background: var(--accent);
  margin-top: 8px;
  box-shadow: 0 0 8px var(--accent-glow);
}

.interest-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === STUDENTS === */
.students-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.student-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.student-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
}

.student-item .student-year {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 500;
  min-width: 36px;
}

.student-item p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* === HONORS === */
.honors-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.honor-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.honor-item:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
  transform: translateX(4px);
}

.honor-item .honor-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 10px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  margin-top: 2px;
}

.honor-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* === CONTACT === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  padding: 24px;
  transition: var(--transition);
}

.contact-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
}

.contact-card .label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 8px;
}

.contact-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-card a {
  color: var(--accent);
  text-decoration: none;
  transition: var(--transition);
}

.contact-card a:hover {
  text-decoration: underline;
}

.qr-container {
  display: flex;
  justify-content: center;
}

.qr-container img {
  width: 200px;
  height: 200px;
  border-radius: 0;
  border: none;
  padding: 16px;
  background: #ffffff;
  opacity: 0.9;
  transition: var(--transition);
}

.qr-container img:hover {
  opacity: 1;
  transform: scale(1.03);
}

/* === FOOTER === */
footer {
  border-top: 1px solid var(--border-card);
  padding: 48px 0 32px;
  text-align: center;
}

.footer-stats {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer-stat {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-stat strong {
  color: var(--text-secondary);
  font-weight: 600;
}

footer .copyright {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 20px;
}

/* === SCROLL ANIMATIONS === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* === RESPONSIVE === */
@media (max-width: 768px) {
  nav ul { display: none; }
  .mobile-toggle { display: block; }
  .mobile-nav-links { display: flex; }
  .hero { padding: 100px 20px 60px; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-left { align-items: center; }
  .hero-badge { margin: 0 auto 20px; }
  .hero-avatar { width: 260px; height: 260px; border-radius: 20px; }
  .hero-right { align-items: center; }
  .hero-stats { justify-content: center; gap: 24px; }
  .hero-stat .number { font-size: 1.4rem; }
  .hero-cta { justify-content: center; }
  .about-grid { grid-template-columns: 1fr; }
  .profiles-grid { grid-template-columns: repeat(3, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .interests-grid { grid-template-columns: 1fr; }
  section { padding: 70px 0; }
  .container { padding: 0 20px; }
  .hero-scroll { display: none; }
}

@media (max-width: 480px) {
  .profiles-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { flex-direction: column; gap: 16px; }
  .hero-avatar { width: 200px; height: 200px; }
}