:root {
  --bg: #f8f9fb;
  --surface: rgba(255, 255, 255, 0.7);
  --text: #10121f;
  --muted: #5c6072;
  --accent: linear-gradient(135deg, #6c63ff, #9b5dff);
  --accent-solid: #7f6bff;
  --accent-secondary: #ff7ac5;
  --border: rgba(16, 18, 31, 0.08);
  --shadow: 0 24px 50px rgba(16, 18, 31, 0.1);
  --header-blur: rgba(248, 249, 251, 0.8);
  --noise-opacity: 0.04;
}

[data-theme="dark"] {
  --bg: #060608;
  --surface: rgba(12, 14, 26, 0.85);
  --text: #f5f6ff;
  --muted: #b5b6c7;
  --accent: linear-gradient(135deg, #9b5dff, #6c63ff);
  --accent-solid: #8e7bff;
  --accent-secondary: #ffb86b;
  --border: rgba(245, 246, 255, 0.08);
  --shadow: 0 24px 40px rgba(2, 0, 32, 0.45);
  --header-blur: rgba(6, 6, 8, 0.85);
  --noise-opacity: 0.12;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(108, 99, 255, 0.2), transparent 60%),
    radial-gradient(circle at bottom right, rgba(255, 122, 197, 0.2), transparent 55%);
  z-index: -2;
}

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  opacity: var(--noise-opacity);
  z-index: -1;
}

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.section {
  padding: 6rem 0;
}

.section--gradient {
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.65), rgba(255, 255, 255, 0));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section--dark {
  background: rgba(12, 14, 26, 0.8);
  color: #f5f6ff;
  position: relative;
  overflow: hidden;
}

.section--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(111, 102, 255, 0.2), transparent 60%);
  z-index: -1;
}

.section--accent {
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.08), rgba(255, 122, 197, 0.08));
  border-top: 1px solid var(--border);
}

.section-header {
  max-width: 640px;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(2.4rem, 3vw + 1rem, 3.5rem);
  margin: 0.4rem 0 0;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero {
  padding: 8rem 0 6rem;
  display: grid;
  place-items: center;
  position: relative;
}

.hero .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 3.5rem;
  align-items: center;
}

.hero h1 {
  font-size: clamp(3.5rem, 8vw, 5rem);
  margin: 0;
}

.hero .subtitle {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--muted);
  max-width: 420px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn.primary {
  color: #fff;
  background-image: var(--accent);
  box-shadow: var(--shadow);
}

.btn.primary:hover,
.btn.primary:focus-visible {
  transform: translateY(-3px);
}

.btn.secondary {
  color: var(--text);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.4);
}

.btn.secondary:hover,
.btn.secondary:focus-visible {
  background: rgba(255, 255, 255, 0.6);
}

.hero-visual {
  position: relative;
}

.floating-card {
  position: relative;
  padding: 2.5rem;
  border-radius: 32px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  overflow: hidden;
  min-height: 300px;
}

.floating-card__content h2 {
  margin: 0;
  font-size: 1.5rem;
}

.floating-card__content p {
  color: var(--muted);
  line-height: 1.6;
}

.floating-card__orbit {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.floating-card__orbit span {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed rgba(124, 118, 255, 0.4);
  animation: orbit 12s linear infinite;
}

.floating-card__orbit span:nth-child(1) {
  width: 80%;
  height: 80%;
  top: 10%;
  left: 10%;
}

.floating-card__orbit span:nth-child(2) {
  width: 110%;
  height: 110%;
  top: -5%;
  left: -5%;
  animation-duration: 18s;
}

.floating-card__orbit span:nth-child(3) {
  width: 140%;
  height: 140%;
  top: -20%;
  left: -20%;
  animation-duration: 24s;
}

@keyframes orbit {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 48px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  display: grid;
  place-items: start center;
  padding-top: 8px;
  backdrop-filter: blur(8px);
}

.scroll-indicator span {
  width: 4px;
  height: 12px;
  border-radius: 999px;
  background: #fff;
  animation: scroll 2s infinite;
}

@keyframes scroll {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  60% {
    transform: translateY(12px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 0;
  }
}

.two-column {
  display: grid;
  gap: 2.5rem;
  align-items: start;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.highlight-card {
  padding: 2rem;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  color: black;
}

.highlight-card h3 {
  margin-top: 0;
}

.highlight-card ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 0.6rem;
}

.highlight-card li::before {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 0.6rem;
  border-radius: 50%;
  background: var(--accent-solid);
  box-shadow: 0 0 10px rgba(127, 107, 255, 0.6);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: rgba(0, 0, 60, 0.5);
  border-radius: 24px;
  padding: 2rem;
  border: 1px solid var(--border);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
  position: relative;
  overflow: hidden;
}

.skill-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(127, 107, 255, 0.15), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.skill-card:hover,
.skill-card:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.skill-card:hover::after,
.skill-card:focus-within::after {
  opacity: 1;
}

.filter-controls {
  display: flex;
  gap: 0.8rem;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}

.filter-btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  padding: 0.5rem 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.filter-btn.is-active,
.filter-btn:hover,
.filter-btn:focus-visible {
  background-image: var(--accent);
  color: #fff;
  box-shadow: var(--shadow);
}

.project-layout {
  display: grid;
  gap: 2rem;
}

.project-layout.has-sidebar {
  grid-template-columns: minmax(240px, 0.85fr) 2.15fr;
}

.project-sidebar {
  display: grid;
  gap: 1rem;
  align-self: start;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  position: sticky;
  top: 7rem;
  height: fit-content;
}

[data-theme="dark"] .project-sidebar {
  background: rgba(16, 18, 31, 0.75);
}

.project-sidebar__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
}

.project-sidebar__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.6rem;
}

.project-sidebar__button {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.7);
  font: inherit;
  font-weight: 600;
  padding: 0.65rem 0.9rem;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
  text-align: left;
}

.project-sidebar__button:hover,
.project-sidebar__button:focus-visible {
  background-image: var(--accent);
  color: #fff;
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.6rem;
}

.project-card {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 28px;
  color: black;
  padding: 2rem;
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: transform 0.4s ease, box-shadow 0.4s ease, opacity 0.3s ease, filter 0.3s ease;
  display: grid;
  gap: 1rem;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.project-card:hover,
.project-card:focus-within {
  transform: translateY(-8px);
  box-shadow: var(--shadow);
}

.project-card:hover::before,
.project-card:focus-within::before {
  opacity: 1;
}

.project-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.project-card .tag {
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  background: rgba(127, 107, 255, 0.12);
  color: var(--accent-solid);
  font-weight: 600;
  font-size: 0.85rem;
}

.project-link {
  color: var(--accent-solid);
  font-weight: 600;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.project-link::after {
  content: "→";
  transition: transform 0.3s ease;
}

.project-card:hover .project-link::after {
  transform: translateX(4px);
}

.project-card.is-highlighted {
  box-shadow: 0 0 0 4px rgba(127, 107, 255, 0.25), var(--shadow);
}

.timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 2px solid rgba(245, 246, 255, 0.2);
  display: grid;
  gap: 2.5rem;
}

.timeline.is-collapsible .timeline-item.is-collapsed {
  display: none;
}

.timeline.is-expanded .timeline-item.is-collapsed {
  display: block;
}

.timeline-toggle {
  margin-top: 2rem;
  border: 1px solid rgba(245, 246, 255, 0.3);
  border-radius: 999px;
  padding: 0.7rem 1.6rem;
  background: transparent;
  color: inherit;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.timeline-toggle:hover,
.timeline-toggle:focus-visible {
  background: rgba(245, 246, 255, 0.1);
  transform: translateY(-2px);
}

.timeline-item {
  position: relative;
  padding-left: 1.5rem;
}

.timeline-item__marker {
  position: absolute;
  left: -2.3rem;
  top: 0.4rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background-image: var(--accent);
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.1);
}

.timeline-item__content {
  background: rgba(16, 18, 31, 0.6);
  border-radius: 20px;
  padding: 1.5rem;
  border: 1px solid rgba(245, 246, 255, 0.1);
  box-shadow: 0 18px 40px rgba(6, 6, 8, 0.4);
}

.timeline-item__time {
  color: rgba(245, 246, 255, 0.7);
  margin-top: -0.2rem;
}

.resume-viewer {
  display: grid;
  gap: 1.5rem;
}

.resume-preview {
  width: 100%;
  height: min(80vh, 820px);
  border: 1px solid var(--border);
  border-radius: 28px;
  box-shadow: var(--shadow);
  background: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .resume-preview {
  background: rgba(12, 14, 26, 0.85);
}

.resume-download {
  justify-self: start;
}

.section--accent .contact-form {
  display: grid;
  gap: 1.2rem;
  max-width: 560px;
}

.form-group {
  display: grid;
  gap: 0.5rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.9rem 1rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.8);
  font: inherit;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-solid);
  box-shadow: 0 0 0 4px rgba(127, 107, 255, 0.15);
}

.site-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
  position: relative;
}

.footer-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.footer-links a:hover::after,
.footer-links a:focus-visible::after {
  transform: scaleX(1);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: var(--header-blur);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: 0.16em;
  text-decoration: none;
  color: inherit;
}

.primary-nav ul {
  display: flex;
  gap: 1.4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.primary-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  position: relative;
  transition: color 0.3s ease;
}

.primary-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.primary-nav a.is-active {
  color: var(--text);
}

.primary-nav a:hover::after,
.primary-nav a:focus-visible::after,
.primary-nav a.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

.theme-toggle {
  width: 46px;
  height: 46px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.55);
  display: grid;
  place-items: center;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.theme-toggle span {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, #ffd369 30%, transparent 70%);
  transform: translateY(0);
  transition: transform 0.4s ease, opacity 0.4s ease;
}

.theme-toggle .icon-moon {
  background: radial-gradient(circle at 30% 30%, #fff 40%, rgba(255, 255, 255, 0) 60%),
    radial-gradient(circle at 70% 70%, rgba(127, 107, 255, 0.8) 45%, transparent 55%);
  opacity: 0;
  transform: translateY(100%);
}

[data-theme="dark"] .theme-toggle .icon-sun {
  opacity: 0;
  transform: translateY(-100%);
}

[data-theme="dark"] .theme-toggle .icon-moon {
  opacity: 1;
  transform: translateY(0);
}

.cursor {
  position: fixed;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(127, 107, 255, 0.3);
  border: 2px solid rgba(127, 107, 255, 0.6);
  pointer-events: none;
  mix-blend-mode: multiply;
  transform: translate(-50%, -50%);
  transition: transform 0.1s ease, width 0.2s ease, height 0.2s ease;
  z-index: 999;
}

.cursor.is-active {
  width: 42px;
  height: 42px;
  border-width: 4px;
}

.will-animate {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.will-animate.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 900px) {
  .primary-nav ul {
    position: absolute;
    right: 1.5rem;
    top: calc(100% + 1rem);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow);
    flex-direction: column;
    padding: 1rem;
    gap: 1rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
  }

  .primary-nav ul.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-toggle {
    display: flex;
  }

  .primary-nav {
    position: relative;
  }

  .header-inner {
    gap: 1rem;
  }

  .project-layout.has-sidebar {
    grid-template-columns: 1fr;
  }

  .project-sidebar {
    position: static;
    width: 100%;
  }

  .project-sidebar__list {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

@media (max-width: 640px) {
  .section {
    padding: 4.5rem 0;
  }

  .hero {
    padding-top: 7rem;
  }

  .hero .container {
    gap: 2.5rem;
  }

  .hero-actions {
    justify-content: center;
  }

  .timeline {
    padding-left: 1rem;
  }

  .timeline-item__marker {
    left: -1.8rem;
  }

  .resume-preview {
    height: 65vh;
  }

  .resume-download {
    justify-self: stretch;
    text-align: center;
  }
}