:root {
  --ink: #101828;
  --ink-strong: #07111f;
  --muted: #5f6b7a;
  --paper: #ffffff;
  --soft: #f4f6f8;
  --line: #dce2e8;
  --accent: #1f5eff;
  --accent-dark: #1446c6;
  --dark: #0b1220;
  --dark-soft: #121c2d;
  --max-width: 1160px;
  --radius: 18px;
  --shadow: 0 20px 55px rgba(16, 24, 40, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

::selection {
  color: white;
  background: var(--accent);
}

img {
  max-width: 100%;
}

button,
a {
  font: inherit;
}

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

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

h1,
h2,
h3,
.brand {
  font-family: "Manrope", system-ui, sans-serif;
}

h1,
h2,
h3 {
  color: var(--ink-strong);
  line-height: 1.14;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 880px;
  margin-bottom: 26px;
  font-size: clamp(3rem, 6.8vw, 6.2rem);
  font-weight: 800;
}

h1 span {
  color: var(--accent);
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2.1rem, 4.2vw, 4rem);
  font-weight: 750;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(1.35rem, 2.2vw, 2rem);
  font-weight: 700;
}

.container {
  width: min(calc(100% - 48px), var(--max-width));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  z-index: 999;
  top: -60px;
  left: 20px;
  padding: 10px 14px;
  color: white;
  background: var(--dark);
  border-radius: 8px;
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  z-index: 100;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(220, 226, 232, 0.9);
  backdrop-filter: blur(16px);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: white;
  background: var(--ink-strong);
  border-radius: 50%;
  font-size: 0.75rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
}

.nav-links a,
.footer-links a,
.social-links a {
  transition: color 160ms ease;
}

.nav-links a:hover,
.footer-links a:hover,
.social-links a:hover {
  color: var(--accent);
}

.nav-resume {
  padding: 9px 16px;
  color: white;
  background: var(--ink-strong);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  transition: transform 160ms ease, background 160ms ease;
}

.nav-resume:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

.hero {
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(310px, 0.72fr);
  align-items: center;
  gap: 70px;
  padding-block: 100px;
}

.availability {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 24px;
  padding: 7px 12px;
  color: #126b43;
  background: #ebf8f1;
  border: 1px solid #c8ead8;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.availability span {
  width: 8px;
  height: 8px;
  background: #1b9b62;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(27, 155, 98, 0.13);
}

.eyebrow {
  margin-bottom: 16px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-description {
  max-width: 760px;
  margin-bottom: 14px;
  color: #344054;
  font-size: clamp(1.15rem, 1.9vw, 1.38rem);
  line-height: 1.68;
}

.hero-subtext {
  max-width: 700px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: white;
  background: var(--accent);
  box-shadow: 0 10px 25px rgba(31, 94, 255, 0.2);
}

.button-primary:hover {
  background: var(--accent-dark);
  box-shadow: 0 14px 30px rgba(31, 94, 255, 0.25);
}

.button-secondary {
  color: var(--ink);
  background: white;
  border-color: var(--line);
}

.button-secondary:hover {
  border-color: #aeb8c4;
  box-shadow: 0 10px 22px rgba(16, 24, 40, 0.08);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-panel {
  padding: 28px;
  color: white;
  background: var(--dark);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.panel-kicker,
.panel-number {
  color: #9fb2cc;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.panel-list article {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 14px;
  padding-block: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.panel-list article:last-child {
  padding-bottom: 2px;
  border-bottom: 0;
}

.panel-list article > span {
  color: #6f8cb4;
  font-size: 0.76rem;
  font-weight: 800;
}

.panel-list h2 {
  margin-bottom: 7px;
  color: white;
  font-size: 1.08rem;
  letter-spacing: -0.02em;
}

.panel-list p {
  margin: 0;
  color: #aebcd0;
  font-size: 0.92rem;
  line-height: 1.62;
}

.section {
  padding-block: 110px;
}

.section-dark {
  color: white;
  background: var(--dark);
}

.section-dark h2 {
  color: white;
}

.section-soft {
  background: var(--soft);
  border-block: 1px solid var(--line);
}

.about-grid {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 80px;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 14px;
  align-self: start;
  color: #9fb2cc;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.section-label span {
  width: 35px;
  height: 35px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
}

.section-label p {
  margin: 0;
}

.section-label.light {
  color: var(--accent);
}

.about-copy > p {
  max-width: 830px;
  color: #b7c2d2;
  font-size: 1.08rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 50px;
}

.stats-grid div {
  min-height: 135px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  background: var(--dark-soft);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 14px;
}

.stats-grid strong {
  color: white;
  font-family: "Manrope", sans-serif;
  font-size: 2rem;
}

.stats-grid span {
  color: #9fb0c6;
  font-size: 0.86rem;
}

.section-heading {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 80px;
  margin-bottom: 54px;
}

.section-heading > div:last-child {
  max-width: 800px;
}

.section-heading h2 {
  margin-bottom: 10px;
}

.section-heading > div:last-child > p {
  margin: 0;
  color: var(--muted);
}

.projects-list {
  border-top: 1px solid var(--line);
}

.project-card {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 50px;
  padding-block: 52px;
  border-bottom: 1px solid var(--line);
}

.featured-project {
  margin-top: 24px;
  padding: 42px;
  background: #f8faff;
  border: 1px solid #d9e3ff;
  border-radius: var(--radius);
}

.project-index {
  color: #a1aab6;
  font-family: "Manrope", sans-serif;
  font-size: 0.9rem;
  font-weight: 800;
}

.project-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-topline p {
  margin: 0;
}

.project-summary {
  max-width: 880px;
  margin-bottom: 24px;
  color: var(--muted);
  font-size: 1.04rem;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin: 28px 0;
}

.metrics.compact-metrics {
  max-width: 620px;
  grid-template-columns: repeat(2, 1fr);
}

.metrics div {
  padding: 18px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.metrics strong,
.metrics span {
  display: block;
}

.metrics strong {
  color: var(--ink-strong);
  font-family: "Manrope", sans-serif;
  font-size: 1.25rem;
}

.metrics span {
  color: var(--muted);
  font-size: 0.8rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag-list span {
  padding: 5px 10px;
  color: #495566;
  background: white;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.project-links {
  margin-top: 24px;
}

.project-links a {
  color: var(--accent);
  font-weight: 800;
}

.project-links a:hover {
  color: var(--accent-dark);
}

.experience-list {
  background: white;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.experience-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 50px;
  padding: 40px;
  border-bottom: 1px solid var(--line);
}

.experience-card:last-child {
  border-bottom: 0;
}

.experience-date {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.company {
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.83rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.experience-main h3 {
  margin-bottom: 16px;
}

.experience-main ul {
  margin: 0 0 22px;
  padding-left: 20px;
  color: var(--muted);
}

.experience-main li + li {
  margin-top: 8px;
}

.education-card .experience-main > p:last-child {
  color: var(--muted);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.skills-grid article {
  min-height: 260px;
  padding: 32px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.skills-grid article:hover {
  border-color: #bac6d3;
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.skill-number {
  margin-bottom: 50px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
}

.skills-grid article > p:last-child {
  margin: 0;
  color: var(--muted);
}

.awards-section {
  color: white;
  background: var(--accent);
}

.awards-section h2 {
  max-width: 650px;
  margin: 0;
  color: white;
}

.awards-section .eyebrow {
  color: #dce6ff;
}

.awards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: end;
}

.award-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.award-details div {
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 14px;
}

.award-details strong {
  font-family: "Manrope", sans-serif;
  font-size: 2rem;
}

.award-details span {
  color: #e3eaff;
  font-size: 0.82rem;
}

.contact-card {
  padding: 80px;
  text-align: center;
  background: var(--soft);
  border: 1px solid var(--line);
  border-radius: 26px;
}

.contact-card h2 {
  max-width: 830px;
  margin-inline: auto;
}

.contact-card > p:not(.eyebrow) {
  max-width: 760px;
  margin-inline: auto;
  color: var(--muted);
  font-size: 1.08rem;
}

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

.contact-email {
  display: inline-block;
  margin-top: 24px;
  color: var(--accent);
  font-weight: 800;
}

.footer {
  color: #9ba8b8;
  background: var(--dark);
}

.footer-inner {
  min-height: 160px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 50px;
}

.footer strong {
  color: white;
  font-family: "Manrope", sans-serif;
}

.footer p {
  margin: 3px 0 0;
  font-size: 0.86rem;
}

.footer-links {
  display: flex;
  gap: 18px;
  font-size: 0.9rem;
  font-weight: 700;
}

@media (max-width: 980px) {
  .nav-links {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 55px;
    padding-block: 80px;
  }

  .hero-panel {
    max-width: 650px;
  }

  .about-grid,
  .section-heading {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .awards-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }

  .footer-inner {
    grid-template-columns: 1fr auto;
  }

  .footer-inner > p:last-child {
    grid-column: 1 / -1;
    margin-bottom: 26px;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(calc(100% - 30px), var(--max-width));
  }

  .nav {
    min-height: 68px;
  }

  .brand > span:last-child {
    display: none;
  }

  .section {
    padding-block: 78px;
  }

  .project-card,
  .experience-card {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .featured-project,
  .experience-card {
    padding: 26px;
  }

  .metrics,
  .metrics.compact-metrics,
  .skills-grid,
  .award-details {
    grid-template-columns: 1fr;
  }

  .project-topline {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .skills-grid article {
    min-height: auto;
  }

  .skill-number {
    margin-bottom: 30px;
  }

  .contact-card {
    padding: 50px 24px;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-block: 42px;
  }

  .footer-inner > p:last-child {
    grid-column: auto;
    margin-bottom: 0;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 2.75rem;
  }

  .nav-resume {
    padding: 8px 12px;
  }

  .hero {
    padding-block: 62px;
  }

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

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

  .social-links {
    gap: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

.project-category { margin-top: 64px; }
.project-category > h3 { margin-bottom: 24px; font-size: clamp(1.7rem, 3vw, 2.6rem); }
.project-category + .project-category { margin-top: 88px; }
.certification-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 980px) { .certification-grid { grid-template-columns: 1fr; } }


/* --- 2026 portfolio refresh: brighter, visual, clickable cards --- */
body{background:linear-gradient(180deg,#fff 0%,#fbfcff 34%,#fff 100%)}
.hero{position:relative}.hero:before{content:"";position:absolute;width:420px;height:420px;right:4%;top:8%;background:radial-gradient(circle,rgba(116,94,255,.16),rgba(74,144,255,.08) 45%,transparent 70%);filter:blur(8px);pointer-events:none}
.showcase-section{position:relative;overflow:hidden}.research-section{background:linear-gradient(135deg,#f8f5ff 0%,#fff 48%,#f1f7ff 100%)}.ml-section{background:linear-gradient(135deg,#fff 0%,#f2fbff 52%,#fff7fb 100%);border-block:1px solid #e8edf6}
.visual-card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.visual-card{display:flex;flex-direction:column;min-width:0;background:rgba(255,255,255,.88);border:1px solid rgba(166,180,214,.45);border-radius:24px;overflow:hidden;box-shadow:0 16px 45px rgba(57,72,115,.10);transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease}.visual-card:hover{transform:translateY(-8px);box-shadow:0 28px 70px rgba(67,80,145,.18);border-color:rgba(91,101,255,.42)}
.card-image,.cert-image{position:relative;overflow:hidden;background:linear-gradient(135deg,#e9e6ff,#e9f5ff 52%,#ffeef6);isolation:isolate}.card-image{aspect-ratio:16/9}.card-image img,.cert-image img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .5s ease}.visual-card:hover .card-image img,.cert-card:hover .cert-image img{transform:scale(1.045)}.card-image img:not([src]),.cert-image img:not([src]){display:none}.image-fallback{position:absolute;inset:0;display:grid;place-items:center;padding:30px;text-align:center;font-family:"Manrope",sans-serif;font-weight:800;font-size:1.25rem;color:#44506b;background:linear-gradient(135deg,rgba(226,220,255,.95),rgba(222,244,255,.92) 55%,rgba(255,226,241,.9));z-index:-1}.metric-badge{position:absolute;right:16px;bottom:16px;padding:8px 12px;border-radius:999px;background:rgba(9,17,36,.84);color:#fff;font-size:.78rem;font-weight:800;backdrop-filter:blur(10px)}
.card-body{padding:28px}.card-body h3{font-size:clamp(1.35rem,2vw,1.85rem)}.card-meta{display:flex;justify-content:space-between;gap:14px;margin-bottom:13px;color:#6758e8;font-size:.75rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase}.card-body>p{color:var(--muted)}.card-cta{display:inline-flex;align-items:center;gap:7px;margin-top:24px;color:#4e55df;font-weight:800}.card-cta b{transition:transform .2s ease}.visual-card:hover .card-cta b{transform:translate(3px,-3px)}
.research-card:before,.ml-card:before{content:"";height:4px;background:linear-gradient(90deg,#7758ff,#4ca5ff,#f37bb6)}
@media(max-width:900px){.visual-card-grid,.certification-grid{grid-template-columns:1fr}}
@media(max-width:600px){.card-body{padding:22px}.card-meta{flex-direction:column;gap:3px}}

/* Warm lilac / rose / peach palette override */
:root{--accent:#b45f8d;--accent-dark:#8e466d;--dark:#211a22;--dark-soft:#30252f;--soft:#fff9f7;--line:#eadfdf;--muted:#6f6269;--ink:#332a30;--ink-strong:#241d21}
body{background:linear-gradient(180deg,#fffdfb 0%,#fff8f6 34%,#fffdfb 100%)}
.hero:before{background:radial-gradient(circle,rgba(235,166,190,.24),rgba(244,196,151,.13) 45%,transparent 70%)}
.research-section{background:linear-gradient(135deg,#fff4f7 0%,#fffdfb 48%,#fff4ed 100%)}
.ml-section{background:linear-gradient(135deg,#fffdfb 0%,#f7f1e8 52%,#fff2f5 100%);border-block:1px solid #eee1dc}
.card-image,.cert-image{background:linear-gradient(135deg,#f7dfe8,#f7ead8 52%,#eee3ef)}
.image-fallback{color:#6b4f5c;background:linear-gradient(135deg,rgba(248,218,228,.96),rgba(250,232,207,.94) 55%,rgba(238,221,236,.92))}
.card-meta{color:#ad5c83}.card-cta{color:#a44f78}
.research-card:before,.ml-card:before{background:linear-gradient(90deg,#c96893,#e7a36f,#b58ab9)}

/* ===== Pastel card-forward refresh ===== */
:root {
  --accent: #7659e8;
  --accent-dark: #4d3aa6;
  --ink: #17182d;
  --ink-strong: #101226;
  --muted: #667085;
  --paper: #fffefe;
  --soft: #fbf9ff;
  --line: rgba(118, 89, 232, .14);
  --dark: #25233d;
  --shadow: 0 22px 60px rgba(72, 56, 120, .10);
}
body {
  background:
    radial-gradient(circle at 12% 8%, rgba(215,205,255,.35), transparent 26%),
    radial-gradient(circle at 88% 10%, rgba(255,214,226,.38), transparent 24%),
    linear-gradient(180deg,#fff 0%,#fdfbff 48%,#fff 100%);
}
.site-header { background: rgba(255,255,255,.78); border-bottom-color: rgba(118,89,232,.10); }
.nav-resume, .button-primary { background: linear-gradient(135deg,#34324f,#24243d); box-shadow: 0 10px 28px rgba(37,35,61,.18); }
.nav-resume:hover, .button-primary:hover { background: linear-gradient(135deg,#4b466e,#2d2a4c); }
.hero { min-height: 690px; padding-block: 92px 76px; position: relative; }
.hero::after { content:""; position:absolute; width:380px; height:380px; right:2%; top:90px; border-radius:48% 52% 55% 45%; background:linear-gradient(135deg,rgba(255,190,211,.56),rgba(208,200,255,.62) 55%,rgba(203,238,255,.50)); filter:blur(2px); opacity:.75; z-index:-1; transform:rotate(-12deg); }
.hero h1 { max-width: 820px; font-size: clamp(3.1rem,6vw,5.7rem); }
.hero h1 span { background: linear-gradient(90deg,#ee8fae,#9b78e8,#6fa6db); -webkit-background-clip:text; background-clip:text; color:transparent; }
.availability { color:#725a91; background:rgba(255,255,255,.76); border-color:rgba(137,111,186,.18); box-shadow:0 8px 24px rgba(84,65,125,.07); }
.availability span { background:#8d75d8; box-shadow:0 0 0 4px rgba(141,117,216,.12); }
.section-dark { color:var(--ink); background:transparent; }
.section-dark h2 { color:var(--ink-strong); }
.about-copy > p { color:var(--muted); }
.about-grid { padding: 52px; border:1px solid rgba(118,89,232,.11); border-radius:30px; background:rgba(255,255,255,.66); box-shadow:var(--shadow); backdrop-filter:blur(16px); }
.stats-grid div { background:linear-gradient(145deg,rgba(246,242,255,.92),rgba(255,244,248,.88)); border:1px solid rgba(118,89,232,.10); }
.stats-grid strong { color:var(--ink-strong); }
.stats-grid span { color:var(--muted); }
.showcase-section { position:relative; }
.research-section { background:linear-gradient(180deg,rgba(248,246,255,.78),rgba(255,255,255,.55)); }
.ml-section { background:linear-gradient(180deg,rgba(255,255,255,.65),rgba(255,247,250,.65)); }
.showcase-heading { display:grid; grid-template-columns:minmax(0,1.4fr) minmax(260px,.6fr); gap:50px; align-items:end; margin-bottom:38px; }
.showcase-heading h2 { max-width:760px; margin:0; font-size:clamp(2.25rem,4vw,3.8rem); }
.showcase-heading > p { margin:0 0 8px; color:var(--muted); font-size:1.02rem; }
.visual-card-grid { gap:24px; }
.visual-card { overflow:hidden; border:1px solid rgba(118,89,232,.16); border-radius:24px; background:rgba(255,255,255,.82); box-shadow:0 14px 38px rgba(61,48,104,.08); transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease; }
.visual-card:hover { transform:translateY(-7px); border-color:rgba(118,89,232,.32); box-shadow:0 26px 60px rgba(61,48,104,.14); }
.card-image { min-height:295px; position:relative; overflow:hidden; background:linear-gradient(125deg,#dce8ff 0%,#e7e1ff 46%,#ffe1ec 100%); }
.research-card:nth-child(1) .card-image { background:linear-gradient(135deg,#efe9ff,#dcecff 55%,#ffe8f0); }
.research-card:nth-child(2) .card-image { background:linear-gradient(135deg,#ffe8ee,#e5ddff 55%,#dff4ff); }
.ml-card:nth-child(1) .card-image { background:linear-gradient(135deg,#dbeaff,#e4e2ff 48%,#ffe1ea); }
.ml-card:nth-child(2) .card-image { background:linear-gradient(135deg,#e7f5ff,#e9e2ff 48%,#ffe9ef); }
.card-image::before { content:""; position:absolute; inset:0; background:radial-gradient(circle at 25% 20%,rgba(255,255,255,.8),transparent 28%); pointer-events:none; }
.card-image img { width:100%; height:100%; min-height:295px; object-fit:cover; transition:transform .45s ease; }
.visual-card:hover .card-image img { transform:scale(1.035); }
.image-fallback { position:absolute; inset:0; display:grid; place-items:center; padding:30px; text-align:center; color:#475273; font-family:"Manrope",sans-serif; font-size:1.28rem; font-weight:800; letter-spacing:-.02em; }
.card-body { padding:30px 30px 28px; }
.card-meta { color:#7558dc; }
.card-body h3 { font-size:clamp(1.45rem,2.2vw,2.05rem); }
.card-body > p { color:var(--muted); }
.tag-list span { background:#f5f2ff; border-color:rgba(118,89,232,.12); color:#665b86; }
.card-cta { color:#393550; }
.metric-badge { right:20px; bottom:18px; background:#3b394f; box-shadow:0 8px 24px rgba(42,39,64,.16); }
.certification-section { background:linear-gradient(180deg,rgba(248,245,255,.62),rgba(255,250,252,.74)); }
.certification-grid { gap:20px; }
.cert-card { border-radius:24px; overflow:hidden; border:1px solid rgba(118,89,232,.14); background:rgba(255,255,255,.84); box-shadow:0 14px 38px rgba(61,48,104,.07); transition:transform .25s ease,box-shadow .25s ease; }
.cert-card:hover { transform:translateY(-6px) rotate(-.2deg); box-shadow:0 24px 52px rgba(61,48,104,.13); }
.cert-image { min-height:235px; background:linear-gradient(135deg,#f0ebff,#e4f2ff 52%,#ffe9ef); overflow:hidden; }
.cert-image img { width:100%; height:100%; min-height:235px; object-fit:contain; padding:18px; transition:transform .35s ease; }
.cert-card:hover .cert-image img { transform:scale(1.035); }
.cert-copy { padding:24px 26px 28px; }
.section-soft { background:rgba(248,247,252,.72); border-block-color:rgba(118,89,232,.09); }
.experience-list { border-color:rgba(118,89,232,.11); box-shadow:0 14px 38px rgba(61,48,104,.05); }
.skills-grid article { background:rgba(255,255,255,.72); border-color:rgba(118,89,232,.12); }
.skills-grid article:hover { border-color:rgba(118,89,232,.28); box-shadow:0 22px 48px rgba(61,48,104,.10); }
.awards-section { background:linear-gradient(115deg,#5b4f85,#8c6eb3 52%,#c7839e); }
.contact-card { background:linear-gradient(135deg,rgba(244,240,255,.92),rgba(255,241,247,.90)); border-color:rgba(118,89,232,.12); box-shadow:var(--shadow); }
@media (max-width: 980px) { .showcase-heading { grid-template-columns:1fr; gap:14px; } .hero::after{width:280px;height:280px;opacity:.35;} }
@media (max-width: 720px) { .about-grid{padding:28px;} .card-image,.card-image img{min-height:230px;} .cert-image,.cert-image img{min-height:190px;} }


/* Balanced pastel palette — soft, bright, but not pink-heavy */
:root {
  --accent: #7067c9;
  --accent-dark: #514a9d;
  --soft: #f7f7fb;
  --line: #e5e3ee;
  --pastel-lilac: #ece9ff;
  --pastel-sage: #e8f2ed;
  --pastel-peach: #f7eee4;
  --pastel-sky: #e9f1f6;
  --neon-green: #39ff8f;
  --neon-sky: #3fd9ff;
}
body {
  background:
    radial-gradient(circle at 84% 8%, rgba(198, 214, 238, .34), transparent 24rem),
    radial-gradient(circle at 12% 24%, rgba(225, 219, 247, .32), transparent 22rem),
    linear-gradient(180deg, #fff 0%, #fbfbfd 55%, #f8f8fb 100%);
}
.hero::before {
  background: radial-gradient(circle, rgba(197, 207, 238, .42), rgba(226, 221, 245, .22) 45%, transparent 70%);
}
h1 span, .gradient-text {
  background: linear-gradient(100deg, #6f68bb 0%, #8f83c7 46%, #718fa0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.project-card, .research-card, .certification-grid article, .cert-card, .contact-card {
  background: rgba(255,255,255,.82);
  border-color: #e5e3ee;
  box-shadow: 0 16px 42px rgba(54, 58, 88, .07);
}
.project-card:hover, .research-card:hover, .certification-grid article:hover, .cert-card:hover {
  border-color: #cfc9e6;
  box-shadow: 0 22px 55px rgba(70, 67, 105, .12);
}
.project-card:nth-child(odd) .project-image,
.research-card:nth-child(odd) .card-image,
.ml-card:nth-child(odd) .card-image {
  background: linear-gradient(135deg, var(--pastel-lilac), var(--pastel-sky));
}
.project-card:nth-child(even) .project-image,
.research-card:nth-child(even) .card-image,
.ml-card:nth-child(even) .card-image {
  background: linear-gradient(135deg, var(--pastel-sage), var(--pastel-peach));
}
.tag-list span, .pill, .status-pill {
  background: #f2f1f7;
  border-color: #e4e1ee;
  color: #55516f;
}
.eyebrow, .company, .section-label.light { color: #6d65b5; }
.certification-section {
  background: linear-gradient(180deg, rgba(239,241,247,.68), rgba(249,249,251,.9));
}
.certification-grid article:nth-child(1), .cert-card:nth-child(1) { background: linear-gradient(145deg, #fff, #f0f2f8); }
.certification-grid article:nth-child(2), .cert-card:nth-child(2) { background: linear-gradient(145deg, #fff, #f1eef8); }
.certification-grid article:nth-child(3), .cert-card:nth-child(3) { background: linear-gradient(145deg, #fff, #eef5f1); }
.contact-card {
  background: linear-gradient(135deg, rgba(237,235,248,.78), rgba(235,243,240,.78));
}

/* ---------- hero photo (right column) ---------- */
.hero-photo {
  position: relative;
  align-self: center;
}

.hero-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: var(--soft);
  box-shadow: var(--shadow);
}

.hero-photo-caption {
  position: absolute;
  left: 18px;
  bottom: -16px;
  margin: 0;
  padding: 8px 14px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink-strong);
  font-family: var(--mono, ui-monospace, monospace);
  font-size: .74rem;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(20, 24, 16, .08);
}

@media (max-width: 980px) {
  .hero-photo { max-width: 380px; margin-inline: auto; }
  .hero-photo-caption { left: 14px; }
}

/* ---------- certification lightbox ---------- */
.cert-image {
  cursor: zoom-in;
}

.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(10, 12, 20, .82);
  backdrop-filter: blur(4px);
}

.lightbox-overlay[hidden] {
  display: none;
}

.lightbox-image {
  max-width: min(90vw, 900px);
  max-height: 86vh;
  object-fit: contain;
  border-radius: 12px;
  background: var(--paper);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .45);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 50%;
  background: rgba(255,255,255,.08);
  color: #fff;
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  transition: background .2s ease;
}

.lightbox-close:hover {
  background: rgba(255,255,255,.18);
}