:root {
  --bg: #eaf2ff;
  --bg-alt: #fff2e6;
  --surface: #ffffff;
  --surface-2: #f3f8ff;
  --text: #0f1e38;
  --muted: #506184;
  --line: #c7d9f4;
  --accent: #1577ff;
  --accent-2: #00b7d6;
  --accent-3: #ff6b3d;
  --radius: 16px;
  --shadow: 0 24px 60px rgba(20, 42, 84, 0.14);
  --shadow-soft: 0 10px 28px rgba(20, 42, 84, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Work Sans", sans-serif;
  line-height: 1.65;
  background:
    radial-gradient(1300px 560px at 94% -14%, #d9ebff 0%, transparent 62%),
    radial-gradient(820px 420px at 3% 18%, #ffe1d0 0%, transparent 72%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg-alt) 100%);
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: "";
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(74px);
  pointer-events: none;
  z-index: -1;
}

body::before {
  top: -160px;
  left: -130px;
  background: rgba(21, 119, 255, 0.2);
  animation: driftA 14s ease-in-out infinite alternate;
  will-change: transform;
}

body::after {
  right: -170px;
  bottom: -160px;
  background: rgba(255, 107, 61, 0.2);
  animation: driftB 17s ease-in-out infinite alternate;
  will-change: transform;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid color-mix(in oklab, var(--line) 72%, transparent);
  background: color-mix(in oklab, var(--surface) 82%, transparent);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: "Sora", sans-serif;
  font-weight: 600;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: #fff;
  background: linear-gradient(145deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 20px rgba(15, 140, 255, 0.3);
}

.brand-text {
  letter-spacing: 0.02em;
}

.menu {
  list-style: none;
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0;
}

.menu a {
  color: var(--muted);
  font-weight: 500;
  position: relative;
  transition: color 0.2s ease;
}

.menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--accent), var(--accent-3));
  transition: transform 0.2s ease;
}

.menu a:hover,
.menu a.active {
  color: var(--text);
}

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

.menu-toggle {
  display: none;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--surface) 90%, #fff);
  padding: 9px 12px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
}

.section {
  padding: 86px 0;
}

.hero {
  padding: 104px 0 94px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 34px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.76rem;
  color: color-mix(in oklab, var(--muted) 88%, #fff);
  margin: 0 0 10px;
  font-weight: 600;
}

.section-center {
  text-align: center;
}

h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
  margin: 0;
  line-height: 1.12;
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3.45rem);
}

h2 {
  font-size: clamp(1.45rem, 3.4vw, 2.35rem);
  margin-bottom: 18px;
}

h3 {
  font-size: 1.2rem;
}

.hero-subtitle {
  margin: 10px 0 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: color-mix(in oklab, var(--accent) 62%, var(--text));
}

.lead {
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  color: var(--muted);
  max-width: 62ch;
  margin: 16px 0 22px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0 0 24px;
}

.metric-item {
  border: 1px solid color-mix(in oklab, var(--line) 85%, #fff);
  background: color-mix(in oklab, var(--surface) 91%, #fff);
  border-radius: 12px;
  padding: 12px;
  box-shadow: var(--shadow-soft);
}

.metric-value {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
}

.metric-label {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 600;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background-color 0.2s ease,
    color 0.2s ease;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(15, 119, 255, 0.24);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(130deg, var(--accent), var(--accent-2));
}

.btn-secondary {
  background: color-mix(in oklab, var(--surface) 90%, #fff);
  border: 1px solid var(--line);
}

.hero-card {
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  border-radius: var(--radius);
  background:
    linear-gradient(165deg, rgba(255, 255, 255, 0.96), rgba(238, 247, 255, 0.92)),
    var(--surface);
  box-shadow: var(--shadow);
  padding: 22px;
  animation: floatY 6s ease-in-out infinite;
}

.profile-photo-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}

.profile-photo {
  width: min(176px, 60%);
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 28%;
  border-radius: 18px;
  border: 4px solid #fff;
  box-shadow:
    0 16px 35px rgba(15, 140, 255, 0.25),
    0 0 0 1px color-mix(in oklab, var(--line) 75%, #fff);
}

.hero-card hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 14px 0;
}

.stat-label {
  margin: 0;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.stat-value {
  margin: 6px 0 0;
  font-weight: 600;
  font-family: "Sora", sans-serif;
}

.cards,
.projects,
.skills-columns {
  display: grid;
  gap: 16px;
}

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

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

.skills-columns {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card,
.project {
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  background: color-mix(in oklab, var(--surface) 91%, #fff);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-soft);
  transition:
    transform 0.24s ease,
    box-shadow 0.24s ease,
    border-color 0.24s ease;
}

.card:hover,
.project:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: color-mix(in oklab, var(--accent) 35%, var(--line));
}

.project-featured {
  border: 1.5px solid color-mix(in oklab, var(--accent) 38%, var(--line));
  background:
    linear-gradient(160deg, rgba(230, 244, 255, 0.75), rgba(255, 247, 242, 0.75)),
    var(--surface);
}

.project-badge {
  margin: 0 0 8px;
  display: inline-flex;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(110deg, var(--accent), var(--accent-3));
}

.project-subtitle {
  margin: 6px 0 0;
  color: var(--muted);
}

.project-visual {
  margin: 14px 0 10px;
}

.project-visual img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: contain;
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0d1117;
  padding: 8px;
}

.project-visual figcaption {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--muted);
}

.project-label {
  margin-top: 12px;
  margin-bottom: 4px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: color-mix(in oklab, var(--accent) 65%, var(--text));
}

.pipeline-line {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: 0.84rem;
  color: color-mix(in oklab, var(--text) 86%, var(--accent));
}

.project-points {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.project-points li + li {
  margin-top: 4px;
}

.project-flow {
  margin: 6px 0 0;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  background: color-mix(in oklab, var(--surface-2) 86%, #fff);
  color: var(--text);
  font-family: "Sora", sans-serif;
  font-size: 0.8rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.diagram {
  margin-top: 12px;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  background: color-mix(in oklab, var(--surface-2) 86%, #fff);
}

.diagram-node {
  border: 1px solid color-mix(in oklab, var(--line) 86%, #fff);
  border-radius: 10px;
  padding: 8px 10px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 600;
  background: #fff;
}

.diagram-arrow {
  text-align: center;
  font-size: 1.05rem;
  color: color-mix(in oklab, var(--accent) 60%, var(--text));
  padding: 4px 0;
}

.link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 14px;
}

.project-link {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  color: color-mix(in oklab, var(--accent) 74%, var(--text));
  position: relative;
}

.project-link::after {
  content: "";
  width: 0;
  height: 2px;
  background: var(--accent-3);
  position: absolute;
  left: 0;
  bottom: -4px;
  transition: width 0.2s ease;
}

.project-link:hover::after,
.project-link:focus-visible::after {
  width: 100%;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 10px 0;
}

.tech-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: color-mix(in oklab, var(--accent) 10%, var(--surface));
  color: color-mix(in oklab, var(--accent) 80%, var(--text));
  border: 1px solid color-mix(in oklab, var(--accent) 25%, var(--line));
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 500;
  background: color-mix(in oklab, var(--surface-2) 88%, #fff);
  color: var(--text);
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.skill-pill:hover {
  background: color-mix(in oklab, var(--accent) 8%, var(--surface));
  border-color: color-mix(in oklab, var(--accent) 25%, var(--line));
}

.skill-pill.skill-primary {
  background: color-mix(in oklab, var(--accent) 12%, var(--surface));
  color: color-mix(in oklab, var(--accent) 82%, var(--text));
  border-color: color-mix(in oklab, var(--accent) 30%, var(--line));
  font-weight: 600;
}

.skill-pill.skill-ai {
  background: color-mix(in oklab, var(--accent-3) 10%, var(--surface));
  color: color-mix(in oklab, var(--accent-3) 78%, var(--text));
  border-color: color-mix(in oklab, var(--accent-3) 28%, var(--line));
}

/* Experience Timeline */
.timeline {
  position: relative;
  max-width: 780px;
  margin: 0 auto;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), color-mix(in oklab, var(--accent-2) 60%, transparent));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding: 0 0 32px 28px;
}

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

.timeline-marker {
  position: absolute;
  left: -22px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 18%, var(--bg));
}

.timeline-content {
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  background: color-mix(in oklab, var(--surface) 91%, #fff);
  border-radius: var(--radius);
  padding: 20px 22px;
  box-shadow: var(--shadow-soft);
  transition: transform 0.24s ease, box-shadow 0.24s ease;
}

.timeline-content:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.timeline-period {
  margin: 0 0 4px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: color-mix(in oklab, var(--accent) 70%, var(--text));
}

.timeline-title {
  font-size: 1.05rem;
  margin: 0 0 2px;
}

.timeline-org {
  margin: 0 0 8px;
  font-size: 0.88rem;
  color: var(--muted);
  font-weight: 500;
}

.timeline-desc {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* Contact email row + copy button */
.contact-email-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0 0;
  padding: 10px 16px;
  border-radius: 10px;
  border: 1px solid color-mix(in oklab, var(--line) 88%, #fff);
  background: color-mix(in oklab, var(--surface) 88%, #fff);
}

.contact-email-link {
  font-weight: 600;
  color: color-mix(in oklab, var(--accent) 74%, var(--text));
  font-size: 0.92rem;
}

.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 10px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--surface-2) 88%, #fff);
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.copy-btn:hover {
  background: color-mix(in oklab, var(--accent) 10%, var(--surface));
  color: color-mix(in oklab, var(--accent) 80%, var(--text));
  border-color: color-mix(in oklab, var(--accent) 30%, var(--line));
}

.copy-btn.copied {
  background: color-mix(in oklab, #22c55e 14%, var(--surface));
  color: #16a34a;
  border-color: #86efac;
}

.repo-badges {
  display: flex;
  gap: 8px;
  margin: 10px 0 8px;
  flex-wrap: wrap;
}

.repo-badges img {
  height: 20px;
}

.resume-card {
  max-width: 920px;
  margin: 0 auto;
}

.resume-frame {
  width: 100%;
  height: 520px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}

.resume-actions {
  margin-top: 16px;
  justify-content: center;
}

.resume-highlights {
  margin: 14px 0 0;
  color: var(--muted);
  padding-left: 18px;
}

.resume-highlights li + li {
  margin-top: 4px;
}

.contact {
  padding-top: 92px;
}

.contact-wrap {
  border: 1px solid color-mix(in oklab, var(--line) 84%, #fff);
  border-radius: var(--radius);
  background:
    radial-gradient(620px 260px at 100% 0%, rgba(255, 107, 61, 0.18) 0%, transparent 70%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.92), rgba(237, 246, 255, 0.9));
  box-shadow: var(--shadow);
  padding: 30px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 20px;
  align-items: center;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.site-footer {
  border-top: 1px solid color-mix(in oklab, var(--line) 70%, transparent);
  padding: 22px 0 30px;
  color: var(--muted);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-row p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}

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

@keyframes driftA {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(72px, 32px) scale(1.08);
  }
}

@keyframes driftB {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(-82px, -40px) scale(1.12);
  }
}

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

@media (max-width: 1080px) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 960px) {
  .hero-grid,
  .projects,
  .cards,
  .skills-columns,
  .contact-wrap,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 84px;
  }

  .contact-actions {
    justify-content: flex-start;
  }

  .hero-card {
    max-width: 540px;
    margin: 0 auto;
  }

  .profile-photo {
    width: min(176px, 60%);
  }

  .resume-frame {
    height: 420px;
  }
}

@media (max-width: 780px) {
  .menu-toggle {
    display: inline-flex;
  }

  .menu {
    position: absolute;
    left: 4vw;
    right: 4vw;
    top: 70px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: color-mix(in oklab, var(--surface) 94%, #fff);
    padding: 10px;
    flex-direction: column;
    gap: 4px;
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition:
      transform 0.2s ease,
      opacity 0.2s ease;
  }

  .menu.is-open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .menu a {
    display: block;
    padding: 10px 8px;
  }

  h1 {
    font-size: clamp(1.7rem, 8vw, 2.45rem);
  }
}

/* Accessibility: respect OS-level motion preference */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* Verified evidence section */
.evidence-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 8px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #0b6e4f;
  background: color-mix(in oklab, #0b6e4f 12%, #fff);
  border: 1px solid color-mix(in oklab, #0b6e4f 30%, #fff);
}

.evidence-term {
  margin: 12px 0 0;
  padding: 14px;
  border-radius: 12px;
  background: #101418;
  color: #d7e0e8;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.76rem;
  line-height: 1.55;
  overflow-x: auto;
  white-space: pre;
}

.evidence-term .term-ok {
  color: #6fd08c;
}

.evidence-term .term-dim {
  color: #8b98a5;
}

.evidence-meta {
  margin: 10px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}