:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --bg-soft: #eef4ff;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-solid: #ffffff;
  --text: #0f172a;
  --muted: #5f6f89;
  --border: rgba(15, 23, 42, 0.10);
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --accent: #14b8a6;
  --danger: #f97316;
  --shadow: 0 24px 70px rgba(15, 23, 42, 0.10);
  --shadow-soft: 0 14px 35px rgba(15, 23, 42, 0.08);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1160px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #08111f;
  --bg-soft: #101b2f;
  --surface: rgba(15, 23, 42, 0.76);
  --surface-solid: #111827;
  --text: #f8fafc;
  --muted: #a8b3c7;
  --border: rgba(226, 232, 240, 0.12);
  --primary: #60a5fa;
  --primary-strong: #3b82f6;
  --accent: #2dd4bf;
  --danger: #fb923c;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 14px 35px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.16), transparent 32rem),
    radial-gradient(circle at 80% 20%, rgba(20, 184, 166, 0.14), transparent 30rem),
    var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(148, 163, 184, 0.08) 1px, transparent 1px), linear-gradient(90deg, rgba(148, 163, 184, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: auto -10% -35% -10%;
  height: 42rem;
  pointer-events: none;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12), transparent 65%);
  z-index: -1;
}

img,
svg {
  max-width: 100%;
}

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

p,
h1,
h2,
h3 {
  margin-top: 0;
}

p:last-child,
ul:last-child {
  margin-bottom: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--text);
  color: var(--bg);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 120;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.5);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(246, 248, 251, 0.78);
  backdrop-filter: blur(18px);
}

[data-theme="dark"] .site-header {
  background: rgba(8, 17, 31, 0.78);
}

.nav {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 20px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.logo-photo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
  box-shadow: var(--shadow);
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.30);
  letter-spacing: -0.05em;
}

.nav-links {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  border-radius: 999px;
  padding: 9px 12px;
  transition: color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--primary);
  background: rgba(37, 99, 235, 0.10);
  transform: translateY(-1px);
}

.theme-btn,
.menu-btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 999px;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
}

.theme-btn {
  justify-self: end;
  padding: 10px 15px;
  font-weight: 800;
}

.menu-btn {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
}

.menu-btn span {
  width: 18px;
  height: 2px;
  display: block;
  margin: 3px auto;
  border-radius: 999px;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.menu-btn[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.menu-btn[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.menu-btn[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.section {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
  padding: 74px 0;
}

.compact-section {
  padding-top: 12px;
  padding-bottom: 20px;
}

.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(320px, 0.72fr);
  align-items: center;
  gap: 32px;
  padding-top: 72px;
  padding-bottom: 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.orb {
  position: absolute;
  width: 18rem;
  height: 18rem;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.48;
  animation: float 8s ease-in-out infinite;
}

.orb-one {
  top: 9%;
  right: 28%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.32), transparent 68%);
}

.orb-two {
  right: -6rem;
  bottom: 10%;
  animation-delay: -3s;
  background: radial-gradient(circle, rgba(20, 184, 166, 0.28), transparent 68%);
}

.grid-glow {
  position: absolute;
  inset: 12% 0 auto auto;
  width: 22rem;
  height: 22rem;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.14), transparent 60%);
}

.eyebrow,
.card-kicker {
  margin-bottom: 12px;
  color: var(--primary);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

h1 {
  max-width: 880px;
  margin-bottom: 22px;
  font-size: clamp(44px, 8vw, 86px);
  line-height: 0.95;
  letter-spacing: -0.075em;
}

.headline {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(18px, 2.3vw, 22px);
}

.hero-actions,
.quick-links,
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-actions {
  margin-top: 30px;
}

.quick-links {
  margin-top: 24px;
  color: var(--muted);
  font-weight: 800;
}

.quick-links a {
  position: relative;
  padding-bottom: 3px;
}

.quick-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0.35);
  transform-origin: left;
  transition: transform 0.2s ease;
}

.quick-links a:hover::after {
  transform: scaleX(1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 900;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.btn.primary {
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--primary-strong));
  box-shadow: 0 18px 35px rgba(37, 99, 235, 0.28);
}

.btn.secondary {
  background: var(--surface);
  border-color: var(--border);
}

.btn:hover,
.btn:focus-visible,
.theme-btn:hover,
.menu-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.full {
  width: 100%;
}

.card,
.skill-card,
.project-card,
.timeline-item,
.contact-card,
.stat-card,
.hero-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.card::before,
.skill-card::before,
.project-card::before,
.timeline-item::before,
.contact-card::before,
.stat-card::before,
.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.20), transparent 38%);
}

.hero-card {
  padding: 30px;
  backdrop-filter: blur(18px);
}

.hero-card h2 {
  margin-bottom: 18px;
  font-size: 30px;
  letter-spacing: -0.05em;
}

.check-list {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--muted);
  font-weight: 700;
}

.check-list li::before {
  content: "✓";
  display: grid;
  place-items: center;
  flex: 0 0 24px;
  height: 24px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  font-size: 13px;
  font-weight: 900;
}

.stats-grid,
.skills-grid,
.contact-grid,
.two-column-section {
  display: grid;
  gap: 18px;
}

.stats-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stat-card {
  padding: 22px;
}

.stat-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 36px;
  line-height: 1;
  letter-spacing: -0.07em;
}

.stat-card span {
  color: var(--muted);
  font-weight: 700;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 24px;
}

.section-heading.center {
  margin-inline: auto;
  text-align: center;
}

.section-title {
  margin-bottom: 0;
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.06em;
}

.rich-card,
.skill-card,
.timeline-item,
.contact-card,
.split-card {
  padding: 26px;
}

.rich-card p,
.skill-card p,
.project-card p,
.split-card p {
  color: var(--muted);
}

.skills-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.skill-card {
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.skill-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow: var(--shadow);
}

.skill-icon {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 14px;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.10);
  font-size: 13px;
  font-weight: 900;
}

.skill-card h3,
.timeline-item h3,
.project-card h3,
.split-card h2 {
  margin-bottom: 8px;
  letter-spacing: -0.035em;
}

.timeline {
  position: relative;
  display: grid;
  gap: 18px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 17px;
  width: 2px;
  background: linear-gradient(var(--primary), var(--accent), transparent);
}

.timeline-item {
  margin-left: 46px;
  overflow: visible;
}

.timeline-marker {
  position: absolute;
  left: -38px;
  top: 26px;
  width: 18px;
  height: 18px;
  border: 4px solid var(--bg);
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.12);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.timeline-item ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.timeline-item li + li {
  margin-top: 8px;
}

.project-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 24px;
  align-items: stretch;
  padding: 30px;
  background:
    linear-gradient(135deg, rgba(37, 99, 235, 0.12), transparent 38%),
    var(--surface);
}

.project-card h3 {
  font-size: clamp(26px, 3vw, 34px);
}

.tags {
  margin-top: 20px;
}

.tags span {
  padding: 7px 11px;
  border: 1px solid rgba(37, 99, 235, 0.16);
  border-radius: 999px;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.10);
  font-size: 13px;
  font-weight: 900;
}

.project-panel {
  display: grid;
  gap: 12px;
  align-content: center;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.42);
}

[data-theme="dark"] .project-panel {
  background: rgba(15, 23, 42, 0.42);
}

.panel-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.panel-line span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.panel-line strong {
  text-align: right;
  font-size: 14px;
}

.two-column-section {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.split-card {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.contact-section {
  padding-bottom: 86px;
}

.contact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-card {
  min-height: 128px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.contact-card:hover {
  transform: translateY(-6px);
  border-color: rgba(37, 99, 235, 0.32);
  box-shadow: var(--shadow);
}

.contact-card span {
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

.contact-card strong {
  word-break: break-word;
}

.footer {
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 42px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  font-weight: 700;
}

.footer a {
  color: var(--primary);
}

[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

@keyframes float {
  0%, 100% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  50% {
    transform: translate3d(12px, -16px, 0) scale(1.04);
  }
}

@media (max-width: 980px) {
  .nav {
    grid-template-columns: auto auto auto;
  }

  .menu-btn {
    display: inline-grid;
    justify-self: end;
  }

  .theme-btn {
    justify-self: end;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 20px;
    right: 20px;
    display: grid;
    gap: 8px;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--surface-solid);
    box-shadow: var(--shadow);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

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

  .nav-links a {
    padding: 12px 14px;
  }

  .hero,
  .project-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 62px;
  }

  .skills-grid,
  .contact-grid,
  .stats-grid,
  .two-column-section {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-panel {
    grid-template-columns: repeat(3, 1fr);
  }

  .project-panel .btn {
    grid-column: 1 / -1;
  }

  .panel-line {
    display: grid;
    align-content: start;
  }

  .panel-line strong {
    text-align: left;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 78px;
  }

  .section {
    width: min(100% - 32px, var(--container));
    padding: 48px 0;
  }

  .compact-section {
    padding-top: 0;
    padding-bottom: 12px;
  }

  .nav {
    padding: 12px 16px;
    gap: 10px;
  }

  .logo span:last-child {
    display: none;
  }

  .theme-btn {
    padding: 10px 12px;
  }

  .nav-links {
    top: 68px;
    left: 16px;
    right: 16px;
  }

  h1 {
    font-size: clamp(40px, 15vw, 62px);
  }

  .hero {
    gap: 22px;
    padding-top: 48px;
    padding-bottom: 34px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .skills-grid,
  .contact-grid,
  .stats-grid,
  .two-column-section,
  .project-panel {
    grid-template-columns: 1fr;
  }

  .timeline::before {
    left: 9px;
  }

  .timeline-item {
    margin-left: 28px;
    padding: 22px;
  }

  .timeline-marker {
    left: -28px;
    width: 16px;
    height: 16px;
  }

  .project-card,
  .hero-card,
  .rich-card,
  .skill-card,
  .contact-card,
  .split-card,
  .stat-card {
    padding: 22px;
  }

  .split-card,
  .footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  body {
    background: white;
    color: black;
  }

  .site-header,
  .scroll-progress,
  .skip-link,
  .hero-bg,
  .hero-actions,
  .quick-links,
  .footer {
    display: none;
  }

  .section {
    width: 100%;
    padding: 18px 0;
  }

  .hero {
    min-height: auto;
    display: block;
  }

  .card,
  .skill-card,
  .project-card,
  .timeline-item,
  .contact-card,
  .stat-card,
  .hero-card {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}