:root {
  
  --black: #ffffff;
  --bg-primary: #f5f5f5;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f0f0;
  --bg-elevated: #e8e8e8;
  --nav-bg: rgba(245, 245, 245, 0.85);
  --mobile-menu-bg: rgba(245, 245, 245, 0.95);

  
  --glass-bg: rgba(0, 0, 0, 0.02);
  --glass-bg-hover: rgba(0, 0, 0, 0.04);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-border-hover: rgba(0, 0, 0, 0.15);

  
  --text-primary: #111111;
  --text-secondary: rgba(0, 0, 0, 0.55);
  --text-muted: rgba(0, 0, 0, 0.32);
  --text-ghost: rgba(0, 0, 0, 0.08);

  
  --glow-soft: rgba(0, 0, 0, 0.04);
  --glow-medium: rgba(0, 0, 0, 0.06);
  --glow-strong: rgba(0, 0, 0, 0.12);

  
  --section-padding: clamp(80px, 12vh, 160px);
  --container-width: 1200px;
  --container-padding: clamp(20px, 5vw, 60px);

  
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 0.2s var(--ease-out-quart);
  --transition-medium: 0.4s var(--ease-out-expo);
  --transition-slow: 0.8s var(--ease-out-expo);

  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  
  --scene-bg: #f5f5f5;
  --scene-particle: #333333;
  --scene-wire: #222222;
  --scene-node: #444444;
}
[data-theme="dark"] {
  --black: #050505;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #141414;
  --bg-card-hover: #1a1a1a;
  --bg-elevated: #1e1e1e;
  --nav-bg: rgba(10, 10, 10, 0.85);
  --mobile-menu-bg: rgba(10, 10, 10, 0.95);

  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-hover: rgba(255, 255, 255, 0.15);

  --text-primary: #f0f0f0;
  --text-secondary: rgba(255, 255, 255, 0.55);
  --text-muted: rgba(255, 255, 255, 0.32);
  --text-ghost: rgba(255, 255, 255, 0.06);

  --glow-soft: rgba(255, 255, 255, 0.04);
  --glow-medium: rgba(255, 255, 255, 0.06);
  --glow-strong: rgba(255, 255, 255, 0.12);

  --scene-bg: #0a0a0a;
  --scene-particle: #aaaaaa;
  --scene-wire: #cccccc;
  --scene-node: #888888;
}
body {
  transition: background-color 0.4s ease, color 0.4s ease;
}

.navbar, .mobile-menu, .section, .project-card, .project-card__inner,
.edu-card, .timeline__card, .form-input, .btn, .footer, .tag,
.about__image-frame, .hero__coords, .hero__hud,
.navbar__theme-toggle, .navbar__logo, .navbar__link {
  transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

[data-theme="dark"] ::selection {
  background: rgba(255, 255, 255, 0.2);
  color: var(--text-primary);
}
.navbar__theme-toggle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.navbar__theme-toggle:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  color: var(--text-primary);
  transform: rotate(15deg);
}
.navbar__theme-toggle .icon-sun {
  display: none;
}
.navbar__theme-toggle .icon-moon {
  display: block;
}
[data-theme="dark"] .navbar__theme-toggle .icon-sun {
  display: block;
}
[data-theme="dark"] .navbar__theme-toggle .icon-moon {
  display: none;
}
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

html.lenis,
html.lenis body {
  height: auto;
}

.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}

.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}

body {
  font-family: var(--font-primary);
  font-weight: 300;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  line-height: 1.7;
  overflow-x: hidden;
  cursor: none;
}

::selection {
  background: rgba(0, 0, 0, 0.12);
  color: var(--text-primary);
}

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

button {
  border: none;
  background: none;
  color: inherit;
  font-family: inherit;
  cursor: none;
}

img {
  max-width: 100%;
  display: block;
}

ul, ol {
  list-style: none;
}
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}
.section {
  padding: var(--section-padding) 0;
  position: relative;
  overflow: hidden;
}
.section.about::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, var(--text-ghost) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.5;
  pointer-events: none;
}
.section.experience {
  border-top: 1px solid var(--glass-border);
}

.section.experience::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--text-muted), transparent);
}
.section.projects {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 50%, var(--bg-primary) 100%);
}
.section.education::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 14px,
    var(--text-ghost) 14px,
    var(--text-ghost) 15px
  );
  opacity: 0.3;
  pointer-events: none;
}
.section.achievements::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse at center, var(--glow-soft) 0%, transparent 70%);
  pointer-events: none;
}
.section.contact {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  border-top: 1px solid var(--glass-border);
}
.section__header {
  margin-bottom: clamp(48px, 6vw, 80px);
  position: relative;
}

.section__label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text-primary);
}

.section__line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, var(--text-muted), transparent);
  margin-top: 20px;
}
.preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
}

.preloader__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.preloader__logo {
  width: 80px;
  height: 80px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
}

.preloader__letter {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--text-primary);
  opacity: 0;
}

.preloader__bar-track {
  width: 200px;
  height: 2px;
  background: rgba(0, 0, 0, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.preloader__bar-fill {
  width: 0%;
  height: 100%;
  background: var(--text-primary);
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.15);
}

.preloader__percent {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--text-muted);
}
#three-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  width: 100%;
  height: 100%;
}
.cursor {
  position: fixed;
  width: 6px;
  height: 6px;
  background: var(--text-primary);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s, height 0.2s, background 0.2s, opacity 0.2s;
}

.cursor-follower {
  position: fixed;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease-out-expo),
              height 0.3s var(--ease-out-expo),
              border-color 0.3s,
              background 0.3s;
}

.cursor.hover {
  width: 0;
  height: 0;
  opacity: 0;
}

.cursor-follower.hover {
  width: 56px;
  height: 56px;
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.12);
}
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px var(--container-padding);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.4s, backdrop-filter 0.4s, padding 0.4s;
}

.navbar.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--glass-border);
  padding-top: 14px;
  padding-bottom: 14px;
}

.navbar__logo {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--text-primary);
  transition: opacity var(--transition-fast);
}

.navbar__logo:hover {
  opacity: 0.7;
}

.navbar__links {
  display: flex;
  gap: 36px;
}

.navbar__link {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0%;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--transition-medium);
}

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

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  width: 28px;
  padding: 4px 0;
  z-index: 1001;
}

.navbar__hamburger span {
  display: block;
  width: 100%;
  height: 1px;
  background: var(--text-primary);
  transition: transform 0.4s var(--ease-out-expo), opacity 0.3s;
}

.navbar__hamburger.active span:first-child {
  transform: translateY(7px) rotate(45deg);
}

.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.active span:last-child {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--mobile-menu-bg);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s var(--ease-out-expo);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.mobile-menu__link {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.5rem);
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  transition: color var(--transition-fast), transform var(--transition-fast);
  transform: translateY(30px);
  opacity: 0;
}

.mobile-menu.active .mobile-menu__link {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu__link:hover {
  color: var(--text-primary);
}

.mobile-menu__socials {
  display: flex;
  gap: 24px;
}

.mobile-menu__socials a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.mobile-menu__socials a:hover {
  color: var(--text-primary);
}
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px var(--container-padding) 120px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.03) 100%);
  pointer-events: none;
  z-index: 1;
}
.hero__hud {
  position: absolute;
  width: 40px;
  height: 40px;
  z-index: 3;
  opacity: 0.15;
}

.hero__hud--tl {
  top: 24px; left: 24px;
  border-top: 1px solid var(--text-muted);
  border-left: 1px solid var(--text-muted);
}

.hero__hud--tr {
  top: 24px; right: 24px;
  border-top: 1px solid var(--text-muted);
  border-right: 1px solid var(--text-muted);
}

.hero__hud--bl {
  bottom: 24px; left: 24px;
  border-bottom: 1px solid var(--text-muted);
  border-left: 1px solid var(--text-muted);
}

.hero__hud--br {
  bottom: 24px; right: 24px;
  border-bottom: 1px solid var(--text-muted);
  border-right: 1px solid var(--text-muted);
}
.hero__coords {
  position: absolute;
  bottom: 80px;
  left: 32px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 3;
  opacity: 0.12;
}

.hero__coords span {
  font-family: var(--font-mono, 'SF Mono', 'Fira Code', monospace);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  position: relative;
  z-index: 2;
}

.hero__greeting {
  font-size: clamp(0.85rem, 1.5vw, 1.1rem);
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  opacity: 0;
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 13vw, 11rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 0.95;
  color: var(--text-primary);
  margin: 8px 0 16px;
  position: relative;
}

.hero__name .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(80px) rotateX(90deg);
  transform-origin: bottom;
  filter: blur(10px);
}

.hero__tagline-wrapper {
  opacity: 0;
}

.hero__tagline {
  font-size: clamp(0.9rem, 1.8vw, 1.15rem);
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

.hero__subtitle {
  font-size: clamp(0.8rem, 1.2vw, 0.95rem);
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.hero__cta {
  display: flex;
  gap: 16px;
  margin-top: 28px;
  opacity: 0;
}

.hero__socials {
  display: flex;
  gap: 20px;
  margin-top: 20px;
  margin-bottom: 40px;
  opacity: 0;
  position: relative;
  z-index: 2;
}

.hero__social-link {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding: 8px 16px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  background: var(--glass-bg);
  transition: all var(--transition-fast);
}

.hero__social-link:hover {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  box-shadow: 0 0 20px var(--glow-soft);
}
.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  z-index: 2;
}

.hero__scroll-indicator span {
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.5; }
  50% { transform: scaleY(0.6); opacity: 1; }
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-radius: var(--radius-xl);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

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

.btn--primary:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15),
              0 8px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

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

.btn--ghost:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 0 20px var(--glow-soft);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
  justify-content: center;
}
.tag {
  display: inline-block;
  padding: 8px 18px;
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
}

.tag:hover {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
}

.tag--small {
  padding: 5px 12px;
  font-size: 0.7rem;
}
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.about__image-col {
  display: flex;
  justify-content: center;
  align-items: center;
}
.about__image-frame {
  position: relative;
  width: clamp(220px, 22vw, 320px);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  filter: grayscale(30%);
  transition: filter var(--transition-medium), transform var(--transition-medium);
}

.about__image-frame:hover .about__image {
  filter: grayscale(0%);
  transform: scale(1.02);
}

.about__image-glow {
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(0,0,0,0.06), transparent, rgba(0,0,0,0.03));
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.about__image-frame:hover .about__image-glow {
  opacity: 1;
}

.about__bio {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.about__bio strong {
  color: var(--text-primary);
  font-weight: 500;
}

.about__interests {
  margin-top: 32px;
}

.about__interests-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.about__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--glass-border), var(--glass-border), transparent);
  transform: translateX(-50%);
}

.timeline__item {
  position: relative;
  display: flex;
  margin-bottom: 60px;
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__item:nth-child(odd) {
  justify-content: flex-start;
  padding-right: calc(50% + 40px);
}

.timeline__item:nth-child(even) {
  justify-content: flex-end;
  padding-left: calc(50% + 40px);
}

.timeline__dot {
  position: absolute;
  left: 50%;
  top: 24px;
  width: 12px;
  height: 12px;
  background: var(--bg-primary);
  border: 2px solid var(--text-muted);
  border-radius: 50%;
  transform: translateX(-50%);
  z-index: 2;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.timeline__item:hover .timeline__dot {
  border-color: var(--text-primary);
  box-shadow: 0 0 16px var(--glow-medium);
}

.timeline__card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 32px);
  transition: all var(--transition-medium);
  width: 100%;
}

.timeline__card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transform: translateY(-4px);
}

.timeline__card-header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 12px;
}

.timeline__date {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.timeline__location {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.timeline__role {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.timeline__company {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.timeline__description {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.timeline__description strong {
  color: var(--text-primary);
  font-weight: 500;
}

.timeline__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.project-card {
  position: relative;
  border-radius: var(--radius-lg);
  transition: transform 0.6s var(--ease-out-expo);
  perspective: 1000px;
}

.project-card__inner {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  position: relative;
  z-index: 1;
  transition: all var(--transition-medium);
  transform-style: preserve-3d;
}

.project-card:hover .project-card__inner {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4),
              0 0 30px var(--glow-soft);
}

.project-card__glow {
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  background: radial-gradient(500px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(0, 0, 0, 0.04), transparent 40%);
  z-index: 0;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.project-card:hover .project-card__glow {
  opacity: 1;
}

.project-card__icon {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.project-card:hover .project-card__icon {
  color: var(--text-primary);
}
.project-card__preview {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  aspect-ratio: 16 / 9;
  margin: 4px 0 8px;
}

.project-card__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  transition: transform 0.6s var(--ease-out-expo);
}

.project-card:hover .project-card__preview img {
  transform: scale(1.05);
}

.project-card__number {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--text-ghost);
  text-transform: uppercase;
}

.project-card__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  transition: text-shadow var(--transition-medium);
}

.project-card:hover .project-card__title {
  text-shadow: 0 0 20px rgba(0, 0, 0, 0.08);
}

.project-card__description {
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-secondary);
  flex-grow: 1;
}

.project-card__stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.stack-badge {
  padding: 4px 10px;
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.project-card:hover .stack-badge {
  border-color: rgba(0, 0, 0, 0.1);
  color: var(--text-secondary);
}

.project-card__links {
  margin-top: 12px;
}

.project-card__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 10px 20px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
}

.project-card__link:hover {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  box-shadow: 0 0 16px var(--glow-soft);
}
.education__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.edu-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 3vw, 40px);
  position: relative;
  transition: all var(--transition-medium);
}

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

.edu-card__icon {
  color: var(--text-muted);
  margin-bottom: 20px;
  transition: color var(--transition-fast);
}

.edu-card:hover .edu-card__icon {
  color: var(--text-primary);
}

.edu-card__period {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.edu-card__institution {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.edu-card__degree {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.edu-card__line {
  width: 40px;
  height: 1px;
  background: var(--glass-border);
  margin-top: 20px;
  transition: width var(--transition-medium), background var(--transition-medium);
}

.edu-card:hover .edu-card__line {
  width: 60px;
  background: var(--text-muted);
}
.achievements__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.achievement-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-fast);
}

.achievement-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-hover);
  box-shadow: 0 12px 40px var(--glow-medium);
}

.achievement-card__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.achievement-card:hover .achievement-card__icon {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
}

.achievement-card__content {
  flex: 1;
  min-width: 0;
}

.achievement-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.achievement-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
  margin-bottom: 10px;
}

.achievement-card__issuer {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.achievement-card__assoc {
  font-size: 0.75rem;
  color: var(--text-ghost);
  letter-spacing: 0.02em;
}

.achievement-card__desc {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.achievement-card__desc strong {
  color: var(--text-primary);
  font-weight: 500;
}

.achievement-card__badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border-radius: var(--radius-xl);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .achievements__grid {
    grid-template-columns: 1fr;
  }

  .achievement-card {
    padding: 20px;
  }
}
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
}

.contact__intro {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.contact__info {
  margin-bottom: 32px;
}

.contact__info-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 12px;
  transition: color var(--transition-fast);
}

.contact__info-item a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
  cursor: pointer;
}

.contact__info-item a:hover {
  color: var(--text-primary);
  text-decoration: underline;
}

.contact__info-item svg {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.contact__info-item:hover svg {
  color: var(--text-secondary);
}

.contact__info-item svg {
  flex-shrink: 0;
}

.contact__socials {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact__social-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 24px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
}

.contact__social-btn:hover {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  box-shadow: 0 4px 16px var(--glow-soft);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
}

.form-label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-input {
  font-family: var(--font-primary);
  font-size: 0.9rem;
  padding: 16px 16px;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  outline: none;
  border-color: var(--glass-border-hover);
  box-shadow: 0 0 16px var(--glow-soft);
  background: var(--glass-bg);
}

.form-textarea {
  resize: none;
  font-family: var(--font-primary);
}

.form-input__glow {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  background: radial-gradient(500px circle at 50% 50%, rgba(0, 0, 0, 0.02), transparent 50%);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.form-group.focused .form-input__glow {
  opacity: 1;
}
.publications__list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 900px;
}

.pub-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 3vw, 36px);
  transition: all var(--transition-medium);
  opacity: 1;
}

.pub-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transform: translateY(-4px);
}

.pub-card__meta {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}

.pub-card__date {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.pub-card__venue {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-ghost);
  text-transform: uppercase;
}

.pub-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.pub-card__description {
  font-size: 0.88rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.pub-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.skills__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.skill-category {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: clamp(24px, 3vw, 32px);
  transition: all var(--transition-medium);
  opacity: 1;
}

.skill-category:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  transform: translateY(-2px);
}

.skill-category__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-category__tags {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.skill-category .tag {
  display: block;
  text-align: left;
  border-color: var(--glass-border);
}

.skill-category:hover .tag {
  border-color: var(--glass-border-hover);
}
.certifications__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.section.certifications .container {
  position: relative;
  z-index: 3;
}

.cert-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition-medium);
  text-align: center;
  opacity: 1;
}

.cert-card:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
  transform: translateY(-4px);
}

.cert-card__icon {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 170px;
  height: 72px;
  margin: 0 auto 16px;
  background: rgba(10, 10, 10, 0.7);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  transition: all var(--transition-fast);
  overflow: hidden;
}

.cert-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
}

.cert-card__icon--oracle img {
  width: 96%;
  height: 96%;
}

.cert-card__icon--microsoft img {
  width: 88%;
  height: 88%;
}

.cert-card__icon--google {
  width: 92px;
  height: 72px;
}

.cert-card__icon--google img {
  width: 72%;
  height: 72%;
}

.cert-card:hover .cert-card__icon {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
}

.cert-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.4;
}

.cert-card__issuer {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.cert-card__line {
  width: 30px;
  height: 1px;
  background: var(--glass-border);
  margin: 16px auto 0;
  transition: all var(--transition-medium);
}

.cert-card:hover .cert-card__line {
  width: 50px;
  background: var(--text-muted);
}
.footer {
  padding: 40px var(--container-padding);
  border-top: 1px solid var(--glass-border);
  background: var(--bg-secondary);
}
  font-weight: 500;
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  background: var(--glass-bg);
  transition: all var(--transition-fast);
}

.contact__social-btn:hover {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  box-shadow: 0 0 20px var(--glow-soft);
  transform: translateY(-2px);
}
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  position: relative;
}

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 14px 20px;
  font-family: var(--font-primary);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-primary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all var(--transition-fast);
  cursor: none;
}

.form-input::placeholder {
  color: var(--text-ghost);
}

.form-input:focus {
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  box-shadow: 0 0 20px var(--glow-soft), inset 0 0 20px var(--glow-soft);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-input__glow {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--text-primary);
  transition: width var(--transition-medium);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.1);
}

.form-input:focus ~ .form-input__glow {
  width: 100%;
}
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--glass-border);
  position: relative;
  z-index: 1;
}

.footer__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.footer__links {
  display: flex;
  gap: 16px;
}

.footer__links a {
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--text-primary);
}

.footer__back-top {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.footer__back-top:hover {
  color: var(--text-primary);
  border-color: var(--glass-border-hover);
  background: var(--glass-bg-hover);
  transform: translateY(-2px);
  box-shadow: 0 0 16px var(--glow-soft);
}
.hero__greeting,
.hero__tagline-wrapper,
.hero__cta,
.hero__socials,
.hero__scroll-indicator {
  opacity: 0;
  transform: translateY(20px);
}

.hero__name .char {
  display: inline-block;
  opacity: 0;
  transform: translateY(80px) rotateX(90deg);
  transform-origin: bottom;
  filter: blur(10px);
}
@media (max-width: 1024px) {
  .navbar__links {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline::before {
    left: 24px;
  }

  .timeline__item:nth-child(odd),
  .timeline__item:nth-child(even) {
    justify-content: flex-start;
    padding-right: 0;
    padding-left: 64px;
  }

  .timeline__dot {
    left: 24px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about__image-col {
    justify-content: flex-start;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}
@media (max-width: 768px) {
  .projects__grid {
    grid-template-columns: 1fr;
  }

  .education__grid {
    grid-template-columns: 1fr;
  }

  .hero__name {
    letter-spacing: 0.04em;
  }

  .hero__cta {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }

  .hero__socials {
    flex-direction: column;
    width: 100%;
    max-width: 300px;
  }

  .footer__content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  
  .cursor,
  .cursor-follower {
    display: none;
  }

  body {
    cursor: auto;
  }

  a, button {
    cursor: pointer;
  }
}
@media (max-width: 480px) {
  :root {
    --container-padding: 20px;
  }

  .timeline::before {
    left: 16px;
  }

  .timeline__dot {
    left: 16px;
  }

  .timeline__item:nth-child(odd),
  .timeline__item:nth-child(even) {
    padding-left: 48px;
  }

  .hero__cta .btn {
    width: 100%;
    justify-content: center;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero__scroll-line {
    animation: none;
  }
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9990;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}