:root {
  --bg: #fbfaf7;
  --surface: rgba(255, 255, 255, 0.82);
  --surface-strong: rgba(255, 255, 255, 0.94);
  --text: #20202a;
  --muted: #6f7282;
  --line: #ddd8d0;
  --accent: #171720;
  --accent-soft: #f0ece5;
  --shadow: 0 18px 44px rgba(38, 29, 17, 0.08);
  --heading-font: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  --body-font: "Avenir Next", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  --card-border: rgba(212, 205, 195, 0.82);
  --soft-border: rgba(212, 205, 195, 0.85);
  --soft-bg: rgba(30, 151, 52, 0.7);
  --soft-text: #4f5462;
  --panel-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(249, 245, 238, 0.9));
  --panel-text: #5f6574;
  --graph-empty: black;
  --graph-1: #d8e7d6;
  --graph-2: #a9d39f;
  --graph-3: #6faf72;
  --graph-4: #2d6e3e;
  --page-width: 680px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(242, 235, 224, 0.95), transparent 34%),
    radial-gradient(circle at right 20%, rgba(233, 228, 245, 0.38), transparent 26%),
    linear-gradient(180deg, #fdfcf9 0%, #f7f3eb 100%);
  font-family: var(--body-font);
  -webkit-font-smoothing: antialiased;
}

body[data-theme="dark"] {
  --bg: #010103;
  --surface: rgba(24, 28, 36, 0.82);
  --surface-strong: rgba(29, 34, 43, 0.94);
  --text: #ece6dc;
  --muted: #98a0b0;
  --line: #2c313b;
  --accent: #f7efe0;
  --accent-soft: #171b22;
  --shadow: 0 22px 54px rgba(0, 0, 0, 0.34);
  --card-border: rgba(82, 88, 102, 0.5);
  --soft-border: rgba(82, 88, 102, 0.58);
  --soft-bg: rgba(27, 31, 39, 0.88);
  --soft-text: #d8deea;
  --panel-bg: linear-gradient(180deg, rgba(29, 34, 43, 0.96), rgba(18, 21, 28, 0.92));
  --panel-text: #b0b8c7;
  --graph-empty: #232833;
  --graph-1: #1f492b;
  --graph-2: #2f7242;
  --graph-3: #49a965;
  --graph-4: #88ef97;
  background:
   rgba(0, 0, 0, 0.963);
}

.page-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    radial-gradient(rgba(36, 32, 25, 0.07) 0.6px, transparent 0.6px);
  background-size: 18px 18px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.5), transparent 95%);
}

.portfolio-shell {
  position: relative;
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding: 54px 20px 88px;
}

.hero,
.section-block {
  opacity: 0;
  transform: translateY(18px);
  animation: rise-in 0.7s ease forwards;
}

.section-block:nth-of-type(1) {
  animation-delay: 0.08s;
}

.section-block:nth-of-type(2) {
  animation-delay: 0.16s;
}

.section-block:nth-of-type(3) {
  animation-delay: 0.24s;
}

.eyebrow {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 4px;
}

.theme-toggle {
  padding: 7px 11px;
  border: 1px solid var(--soft-border);
  border-radius: 999px;
  background: var(--soft-bg);
  color: var(--soft-text);
  font: inherit;
  font-size: 0.76rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  transform: translateY(-1px);
  border-color: #beb4a8;
}

.hero h1 {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--heading-font);
  font-size: clamp(1.7rem, 3.8vw, 2.55rem);
  font-style: italic;
  font-weight: 700;
  letter-spacing: 0.015em;
}

.verified-badge {
  display: inline-flex;
  width: 1.08rem;
  height: 1.08rem;
  color: #2f8cff;
  filter: drop-shadow(0 8px 16px rgba(47, 140, 255, 0.22));
}

.verified-badge svg {
  width: 100%;
  height: 100%;
}

.tagline {
  margin: 10px 0 0;
  color: var(--soft-text);
  font-size: 0.74rem;
}

.section-block {
  margin-top: 24px;
}

.section-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

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

.section-heading--summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  list-style: none;
  cursor: pointer;
}

.section-heading--summary::-webkit-details-marker {
  display: none;
}

.section-collapse[open] .section-toggle__closed-text {
  display: none;
}

.section-collapse:not([open]) .section-toggle__open-text {
  display: none;
}

.section-toggle__open-text,
.section-toggle__closed-text {
  display: inline;
}

.section-heading .section-divider {
  flex: 1;
  margin-bottom: 0;
}

.section-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 6px 10px;
  border: 1px solid rgba(212, 205, 195, 0.85);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #4f5462;
  font: inherit;
  font-size: 0.72rem;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.section-toggle:hover,
.section-toggle:focus-visible {
  transform: translateY(-1px);
  border-color: #beb4a8;
}

.section-toggle.is-collapsed {
  background: #22232d;
  color: #fff;
  border-color: #22232d;
}

.certificate-content {
  margin-top: 22px;
}

.divider-line {
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--line), rgba(221, 216, 208, 0.28));
}

.divider-label {
  font-family: var(--heading-font);
  font-style: italic;
  font-size: 0.74rem;
  color: #c0bbb2;
  letter-spacing: 0.04em;
}

.copy-stack,
.info-copy {
  display: grid;
  gap: 11px;
}

.copy-stack p,
.info-copy p,
.project-panel p {
  margin: 0;
  line-height: 1.58;
  font-size: 0.8rem;
}

.copy-stack strong,
.info-copy strong,
.project-name {
  font-weight: 800;
  color: var(--accent);
}

a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
  border-bottom: 1px dashed rgba(32, 32, 42, 0.2);
}

a:hover {
  border-bottom-color: rgba(32, 32, 42, 0.45);
}

.inline-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.2rem;
  height: 1.2rem;
  margin-left: 0.2rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #f5dfba, #f6b79b);
  color: #6b3819;
  font-size: 0.58rem;
  font-weight: 800;
  vertical-align: middle;
  box-shadow: 0 6px 16px rgba(168, 92, 42, 0.18);
}

.info-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(170px, 205px);
  gap: 16px;
  align-items: start;
}

.meta-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  font-weight: 800;
}

.flag-badge {
  width: 0.8rem;
  height: 0.84rem;
  margin-right: 0.22rem;
  vertical-align: -0.08rem;
}

.separator-dot {
  color: #b8b1a9;
  margin: 0 0.25rem;
}

.calendar-line {
  padding-top: 4px;
}

.calendar-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-left: 4px;
}

.calendar-link::after {
  content: "Cal";
  display: inline-grid;
  place-items: center;
  width: 1.02rem;
  height: 1.02rem;
  border-radius: 0.3rem;
  background: #22232d;
  color: #fff;
  font-size: 0.48rem;
  font-weight: 700;
}

.now-card {
  position: sticky;
  top: 28px;
  padding: 14px;
  border: 1px solid rgba(212, 205, 195, 0.75);
  border-radius: 16px;
  background: linear-gradient(180deg, var(--surface-strong), var(--surface));
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.card-kicker {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.now-card h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 0.92rem;
  font-style: italic;
  line-height: 1.2;
}

.now-card p {
  margin: 12px 0 0;
  color: #545968;
  line-height: 1.6;
  font-size: 0.76rem;
}

.status-row {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  padding: 7px 9px;
  border-radius: 999px;
  background: #f7f2ea;
  font-size: 0.69rem;
  font-weight: 700;
}

.status-dot {
  width: 0.56rem;
  height: 0.56rem;
  border-radius: 999px;
  background: #4caf69;
  box-shadow: 0 0 0 6px rgba(76, 175, 105, 0.15);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.certificate-intro {
  display: grid;
  gap: 10px;
  max-width: 42rem;
  margin-bottom: 24px;
}

.certificate-intro p {
  margin: 0;
  color: #5a6070;
  line-height: 1.65;
  font-size: 0.82rem;
}

.certificate-wall {
  columns: 3 180px;
  column-gap: 14px;
}

.certificate-empty-state {
  display: none;
  margin: 18px 0 0;
  padding: 18px 20px;
  border: 1px dashed rgba(212, 205, 195, 0.95);
  border-radius: 18px;
  color: #666c7a;
  background: rgba(255, 255, 255, 0.6);
  line-height: 1.7;
}

.certificate-empty-state.is-visible {
  display: block;
}

.certificate-card {
  break-inside: avoid;
  margin-bottom: 14px;
}

.certificate-open {
  width: 100%;
  padding: 0;
  border: 1px solid rgba(212, 205, 195, 0.7);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.78);
  overflow: hidden;
  box-shadow: 0 18px 36px rgba(38, 29, 17, 0.07);
  cursor: pointer;
  text-align: left;
  filter: grayscale(1);
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease, filter 220ms ease;
}

.certificate-open:hover,
.certificate-open:focus-visible {
  transform: translateY(-4px);
  border-color: #c2b7aa;
  box-shadow: 0 22px 42px rgba(38, 29, 17, 0.12);
  filter: grayscale(0);
}

.certificate-poster {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 10px;
  padding: 20px;
  color: #1d202a;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.6)),
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.85), rgba(247, 236, 223, 0.88) 48%, rgba(232, 226, 244, 0.72));
}

.certificate-poster--image {
  padding: 0;
  min-height: 140px;
  background: #f4efe7;
}

.certificate-poster--image img {
  display: block;
  width: 100%;
  height: auto;
}

.certificate-poster--pdf {
  min-height: 210px;
}

.certificate-poster::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 18px;
  pointer-events: none;
}

.certificate-poster--image::after {
  inset: 10px;
}

.poster-tall {
  min-height: 290px;
}

.poster-medium {
  min-height: 240px;
}

.poster-short {
  min-height: 190px;
}

.poster-wide {
  min-height: 220px;
}

.alt-poster {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.58)),
    radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.85), rgba(234, 241, 225, 0.86) 45%, rgba(224, 231, 247, 0.75));
}

.poster-chip {
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: #555b68;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.certificate-poster h3 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.6rem;
  font-style: italic;
  line-height: 1.15;
}

.certificate-poster p {
  margin: 0;
  color: #5a6070;
  font-weight: 600;
}

.certificate-meta {
  padding: 12px 14px 14px;
}

.certificate-name,
.certificate-note {
  margin: 0;
}

.certificate-name {
  font-weight: 800;
  color: #676464;
  color: linear-gradient(135deg, #f5dfba, #f6b79b);
}

.certificate-note {
  margin-top: 6px;
  color: #707482;
  font-size: 0.78rem;
}

.certificate-modal {
  width: min(92vw, 460px);
  padding: 0;
  border: 0;
  border-radius: 22px;
  background: transparent;
}

.certificate-modal[open] {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  width: 100%;
  max-width: none;
  min-height: 100vh;
  margin: 0;
  padding: 20px;
  background: rgba(26, 22, 18, 0.5);
  backdrop-filter: blur(5px);
}

.certificate-modal::backdrop {
  background: rgba(26, 22, 18, 0.5);
  backdrop-filter: blur(5px);
}

.certificate-modal__content {
  position: relative;
  width: min(100%, 460px);
  max-height: min(84vh, 720px);
  overflow: auto;
  padding: 22px;
  border: 1px solid rgba(212, 205, 195, 0.7);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(252, 248, 242, 0.95));
  box-shadow: 0 28px 70px rgba(38, 29, 17, 0.18);
}

.certificate-modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 8px 12px;
  border: 1px solid rgba(212, 205, 195, 0.9);
  border-radius: 999px;
  background: #fff;
  color: #4f5462;
  font: inherit;
  cursor: pointer;
}

.certificate-modal__eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.certificate-modal h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.45rem;
  font-style: italic;
  line-height: 1.1;
}

.certificate-modal__issuer,
.certificate-modal__date,
.certificate-modal__id,
.certificate-modal__desc {
  margin: 10px 0 0;
  color: #565c6b;
  line-height: 1.6;
  font-size: 0.8rem;
}

.certificate-modal__issuer {
  font-weight: 700;
  color: #2242cd;
}

.certificate-modal__preview {
  margin-top: 14px;
  overflow: hidden;
  border: 1px solid rgba(212, 205, 195, 0.8);
  border-radius: 14px;
  background: #f8f4ee;
}

.certificate-modal__preview img,
.certificate-modal__preview iframe {
  display: block;
  width: 100%;
}

.certificate-modal__preview img {
  height: auto;
}

.certificate-modal__preview iframe {
  height: min(52vh, 380px);
  border: 0;
  background: #fff;
}

.certificate-modal__link {
  display: inline-flex;
  margin-top: 14px;
  font-size: 0.8rem;
}

.filter-chip {
  padding: 7px 11px;
  border: 1px solid rgba(212, 205, 195, 0.85);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #4f5462;
  font: inherit;
  font-size: 0.74rem;
  cursor: pointer;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.filter-chip:hover,
.filter-chip:focus-visible {
  transform: translateY(-1px);
  border-color: #beb4a8;
}

.filter-chip.is-active {
  background: #22232d;
  color: #fff;
  border-color: #22232d;
}

.education-panel {
  margin: 6px 0 22px;
}

.education-panel[hidden],
.project-list[hidden],
.certificate-content[hidden] {
  display: none !important;
}

.education-timeline {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 8px 0 8px 14px;
}

.education-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 112px;
  width: 1px;
  background: linear-gradient(180deg, rgba(34, 35, 45, 0.14), rgba(34, 35, 45, 0.45), rgba(34, 35, 45, 0.14));
}

.education-step {
  position: relative;
  display: grid;
  grid-template-columns: 84px 28px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.education-step__year {
  display: inline-flex;
  justify-content: flex-end;
  padding-top: 12px;
  color: #7e8493;
  font-size: 0.78rem;
  font-weight: 700;
}

.education-step__dot {
  position: relative;
  z-index: 1;
  width: 14px;
  height: 14px;
  margin-top: 14px;
  border-radius: 999px;
  background: #22232d;
  box-shadow: 0 0 0 6px rgba(34, 35, 45, 0.08);
}

.education-step__content {
  padding: 12px 15px;
  border: 1px solid rgba(212, 205, 195, 0.8);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(249, 245, 238, 0.9));
  box-shadow: 0 14px 28px rgba(38, 29, 17, 0.05);
}

.education-step__label {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.education-step__content h3 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.05rem;
  font-style: italic;
}

.education-step__content p:last-child {
  margin: 10px 0 0;
  color: #5f6574;
  line-height: 1.55;
  font-size: 0.8rem;
}

.education-card {
  padding: 24px;
  border: 1px solid rgba(212, 205, 195, 0.78);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(250, 246, 239, 0.88));
  box-shadow: 0 18px 36px rgba(38, 29, 17, 0.06);
}

.education-header {
  margin-bottom: 20px;
}

.education-kicker {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.education-header h3 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.9rem;
  font-style: italic;
  line-height: 1.1;
}

.education-copy {
  margin: 10px 0 0;
  color: #5a6070;
  line-height: 1.75;
}

.education-list {
  display: grid;
  gap: 18px;
}

.education-item {
  padding: 16px 0 0;
  border-top: 1px dashed rgba(209, 202, 193, 0.75);
}

.education-item:first-child {
  padding-top: 0;
  border-top: 0;
}

.education-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.education-title,
.education-subtitle,
.education-percent {
  margin: 0;
}

.education-title {
  font-weight: 800;
  color: var(--accent);
}

.education-subtitle {
  margin-top: 6px;
  color: #717684;
  line-height: 1.6;
}

.education-percent {
  min-width: 52px;
  color: #5c6170;
  font-weight: 800;
  text-align: right;
}

.progress-track {
  height: 12px;
  margin-top: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: #ebe4da;
}

.progress-fill {
  display: block;
  width: var(--progress);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #22232d, #7c828f);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.22);
}

.project-list {
  display: grid;
  gap: 8px;
}

.project-item {
  border-bottom: 1px dashed rgba(209, 202, 193, 0.75);
}

.project-item.is-hidden {
  display: none;
}

.project-toggle {
  width: 100%;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 12px;
  padding: 10px 0;
  border: 0;
  background: transparent;
  list-style: none;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font: inherit;
}

.project-toggle::-webkit-details-marker {
  display: none;
}

.toggle-icon {
  display: inline-grid;
  place-items: center;
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 0.25rem;
  background: #f1f1f1;
  color: #707482;
  font-size: 0.88rem;
  font-weight: 700;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease;
}

.project-item[open] .toggle-icon {
  transform: rotate(45deg);
  background: #22232d;
  color: #fff;
}

.project-name {
  font-size: 0.84rem;
  letter-spacing: 0.01em;
}

.project-mark {
  color: #ff7b96;
  font-size: 0.66rem;
  vertical-align: middle;
}

.project-year {
  color: #7e8493;
  font-weight: 700;
  font-size: 0.78rem;
}

.project-panel {
  max-height: 0;
  overflow: hidden;
  padding-left: 30px;
  color: #5c6170;
  transition: max-height 220ms ease, padding-bottom 220ms ease;
  font-size: 0.82rem;
}

.project-item[open] .project-panel {
  max-height: 540px;
  padding-bottom: 14px;
}

.project-image-frame {
  overflow: hidden;
  margin-bottom: 10px;
  border: 1px solid rgba(212, 205, 195, 0.82);
  border-radius: 14px;
  background: #f8f2e9;
  box-shadow: 0 14px 28px rgba(38, 29, 17, 0.06);
}

.project-image {
  display: block;
  width: 100%;
  height: auto;
}

.paper-detail,
.utility-detail {
  display: grid;
  gap: 10px;
}

.paper-detail {
  padding: 16px 0 4px;
}

.paper-row {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border: 1px solid rgba(212, 205, 195, 0.78);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 244, 237, 0.9));
}

.paper-row strong {
  font-family: var(--heading-font);
  font-size: 0.98rem;
  font-style: italic;
}

.paper-label,
.utility-label {
  color: #6c7282;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.utility-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.utility-card {
  display: grid;
  gap: 8px;
  padding: 16px 18px;
  border: 1px solid rgba(212, 205, 195, 0.78);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 244, 237, 0.9));
}

.utility-card strong {
  color: #22232d;
  line-height: 1.5;
}

.utility-card p {
  color: #5d6373;
}

.utility-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.utility-progress {
  flex: 1 1 280px;
}

.utility-progress__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  color: #676d7d;
  font-size: 0.95rem;
  font-weight: 700;
}

.project-preview-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  margin-bottom: 12px;
  border-radius: 18px;
  color: #1f2230;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), rgba(245, 235, 223, 0.8) 42%, rgba(231, 226, 244, 0.72));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.project-preview-card strong {
  font-family: var(--heading-font);
  font-size: 1.3rem;
  font-style: italic;
}

.project-preview-label {
  color: #626879;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-preview-card--warm {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(255, 247, 232, 0.95), rgba(247, 218, 177, 0.82) 46%, rgba(242, 181, 145, 0.68));
}

.project-preview-card--cool {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(244, 249, 255, 0.95), rgba(199, 223, 255, 0.82) 48%, rgba(169, 202, 245, 0.68));
}

.project-preview-card--rose {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(255, 245, 247, 0.95), rgba(250, 211, 222, 0.82) 46%, rgba(232, 172, 189, 0.68));
}

.project-preview-card--sunset {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(255, 247, 237, 0.95), rgba(245, 212, 168, 0.82) 46%, rgba(223, 165, 118, 0.68));
}

.project-preview-card--forest {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(245, 252, 244, 0.95), rgba(197, 228, 193, 0.82) 46%, rgba(137, 182, 142, 0.68));
}

.project-preview-card--paper {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    radial-gradient(circle at top left, rgba(250, 248, 244, 0.96), rgba(231, 225, 214, 0.84) 48%, rgba(196, 185, 169, 0.7));
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 10px;
}

.project-link-type {
  color: #6b7181;
  font-size: 0.74rem;
  font-weight: 700;
}

.project-card__head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 10px;
}

.project-card__kicker {
  margin: 0 0 4px;
  color: #6c7282;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-card__title {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1rem;
  font-style: italic;
  color: var(--accent);
}

.project-card__features {
  display: grid;
  gap: 8px;
}

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

.project-feature-chip {
  padding: 6px 10px;
  border: 1px solid rgba(212, 205, 195, 0.8);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  color: #5d6373;
  font-size: 0.74rem;
  font-weight: 700;
}

.paper-detail--card {
  gap: 10px;
  padding: 12px 0 4px;
}

.paper-detail--card .paper-row p {
  margin: 0;
}

.tech-section {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding: 0 20px 28px;
}

.tech-stack-shell {
  overflow-x: hidden;
  overflow-y: visible;
  padding: 6px 0 34px;
}

.tech-stack-track {
  display: flex;
  align-items: center;
  gap: 12px;
  width: max-content;
  animation: tech-slide 28s linear infinite;
}

.tech-stack-shell:hover .tech-stack-track,
.tech-stack-shell:focus-within .tech-stack-track {
  animation-play-state: paused;
}

.tech-stack-row {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.tech-item {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 56px;
  cursor: default;
}

.tech-item::after {
  content: attr(data-tech);
  position: absolute;
  bottom: -22px;
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  padding: 6px 10px;
  border: 1px solid var(--soft-border);
  border-radius: 999px;
  background: var(--soft-bg);
  color: var(--soft-text);
  font-size: 0.68rem;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  z-index: 3;
  transition: opacity 180ms ease, transform 180ms ease;
}

.tech-item:hover::after,
.tech-item:focus-within::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.tech-glyph {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(245, 239, 230, 0.9));
  border: 1px solid var(--card-border);
  box-shadow: 0 14px 28px rgba(38, 29, 17, 0.1);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.tech-item:hover .tech-glyph,
.tech-item:focus-within .tech-glyph {
  transform: translateY(-3px);
  box-shadow: 0 18px 32px rgba(38, 29, 17, 0.16);
}

.tech-logo {
  width: 22px;
  height: 22px;
  object-fit: contain;
}

.tech-logo--invert {
  filter: invert(1);
}

.snippet-section {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding: 0 20px 28px;
}

.snippet-grid {
  display: grid;
  grid-template-columns: minmax(0, 470px);
  justify-content: center;
  gap: 14px;
}

.snippet-card {
  padding: 8px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.52), rgba(255, 255, 255, 0.12));
  box-shadow:
    0 22px 44px rgba(38, 29, 17, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.62);
  backdrop-filter: blur(16px);
}

.snippet-window {
  height: 100%;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background:
    radial-gradient(circle at top, rgba(68, 84, 110, 0.34), transparent 28%),
    linear-gradient(180deg, #171b23 0%, #11151c 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.07),
    0 12px 28px rgba(4, 7, 12, 0.32);
}

.snippet-window__bar {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.06)),
    linear-gradient(180deg, #343a45, #272d37);
}

.snippet-window__dots {
  display: inline-flex;
  gap: 8px;
}

.snippet-window__dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.15);
}

.snippet-window__dot--red {
  background: #ff5f57;
}

.snippet-window__dot--yellow {
  background: #febc2e;
}

.snippet-window__dot--green {
  background: #28c840;
}

.snippet-window__meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-width: 0;
}

.snippet-window__meta--end {
  align-items: flex-end;
}

.snippet-window__title {
  margin: 0;
  max-width: 100%;
  overflow: hidden;
  color: #f2f5fb;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.snippet-label {
  margin: 0;
  color: rgba(217, 225, 238, 0.72);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.snippet-badge {
  padding: 5px 9px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: #eef3fb;
  font-size: 0.64rem;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.snippet-code {
  margin: 0;
  overflow-x: auto;
  min-height: 178px;
  padding: 16px 16px 14px;
  background: transparent;
  color: #dbe8ff;
  font-size: 0.72rem;
  line-height: 1.58;
}

.snippet-code code {
  font-family: "Consolas", "SFMono-Regular", "Menlo", monospace;
}

.snippet-window__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px 12px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: rgba(213, 222, 238, 0.62);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  background: linear-gradient(180deg, rgba(18, 22, 30, 0), rgba(9, 12, 17, 0.34));
}

.site-footer {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding: 0 20px 56px;
}

.activity-section {
  width: min(100%, var(--page-width));
  margin: 0 auto;
  padding: 0 20px 28px;
}

.activity-card {
  padding: 16px;
  border: 1px solid rgba(212, 205, 195, 0.82);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(249, 245, 238, 0.9));
  box-shadow: 0 18px 36px rgba(38, 29, 17, 0.06);
}

.activity-card__header {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.activity-kicker {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.activity-card h2 {
  margin: 0;
  font-family: var(--heading-font);
  font-size: 1.1rem;
  font-style: italic;
}

.activity-legend {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #6b7181;
  font-size: 0.72rem;
}

.github-graph-frame {
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: 22px;
  background: var(--panel-bg);
}

.github-graph-image {
  display: block;
  width: 100%;
  height: auto;
}

.activity-note {
  margin: 16px 0 0;
  color: #606675;
  line-height: 1.58;
  font-size: 0.76rem;
}

.site-footer__divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.site-footer__content {
  display: grid;
  gap: 16px;
}

.site-footer__copy {
  margin: 0;
  color: #626879;
  line-height: 1.58;
  font-size: 0.78rem;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.site-footer__links a {
  padding: 7px 10px;
  border: 1px solid rgba(212, 205, 195, 0.85);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.76);
  color: #4f5462;
  font-weight: 700;
  font-size: 0.74rem;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  transform: translateY(-1px);
  border-bottom-color: transparent;
  border-color: #beb4a8;
  background: #fff;
}

body[data-theme="dark"] .page-noise {
  opacity: 0.16;
}

body[data-theme="dark"] .divider-label,
body[data-theme="dark"] .project-year,
body[data-theme="dark"] .activity-note,
body[data-theme="dark"] .site-footer__copy,
body[data-theme="dark"] .project-link-type,
body[data-theme="dark"] .paper-label,
body[data-theme="dark"] .utility-label {
  color: var(--muted);
}

body[data-theme="dark"] .section-toggle,
body[data-theme="dark"] .filter-chip,
body[data-theme="dark"] .site-footer__links a,
body[data-theme="dark"] .project-feature-chip {
  border-color: var(--soft-border);
  background: var(--soft-bg);
  color: var(--soft-text);
}

body[data-theme="dark"] .filter-chip.is-active,
body[data-theme="dark"] .section-toggle.is-collapsed {
  background: #f0eadf;
  color: #181b22;
  border-color: #f0eadf;
}

body[data-theme="dark"] .now-card,
body[data-theme="dark"] .activity-card,
body[data-theme="dark"] .education-step__content,
body[data-theme="dark"] .paper-row,
body[data-theme="dark"] .project-image-frame,
body[data-theme="dark"] .github-graph-frame,
body[data-theme="dark"] .certificate-modal__content {
  border-color: var(--card-border);
  background: var(--panel-bg);
  box-shadow: var(--shadow);
}

body[data-theme="dark"] .tech-glyph {
  background: linear-gradient(180deg, rgba(33, 38, 47, 0.96), rgba(21, 24, 31, 0.92));
  border-color: var(--card-border);
}

body[data-theme="dark"] .tech-logo--invert {
  filter: none;
}

body[data-theme="dark"] .snippet-card {
  background: linear-gradient(180deg, rgba(35, 40, 49, 0.72), rgba(17, 20, 26, 0.58));
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.34),
    inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

body[data-theme="dark"] .snippet-code {
  color: #edf2ff;
}

body[data-theme="dark"] .education-step__content p:last-child,
body[data-theme="dark"] .now-card p,
body[data-theme="dark"] .certificate-intro p,
body[data-theme="dark"] .paper-row a,
body[data-theme="dark"] .paper-row strong,
body[data-theme="dark"] .project-panel,
body[data-theme="dark"] .certificate-note,
body[data-theme="dark"] .certificate-modal__issuer,
body[data-theme="dark"] .certificate-modal__date,
body[data-theme="dark"] .certificate-modal__id,
body[data-theme="dark"] .certificate-modal__desc,
body[data-theme="dark"] .activity-legend {
  color: var(--panel-text);
}

body[data-theme="dark"] .status-row {
  background: #171c23;
  color: #efe6da;
}

body[data-theme="dark"] .project-toggle,
body[data-theme="dark"] .certificate-open,
body[data-theme="dark"] .certificate-modal__close {
  color: var(--text);
}

body[data-theme="dark"] .toggle-icon {
  background: #20252d;
  color: #dde4ef;
}

body[data-theme="dark"] .project-item[open] .toggle-icon {
  background: #f0eadf;
  color: #181b22;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes tech-slide {
  from {
    transform: translateX(-48%);
  }
  to {
    transform: translateX(0);
  }
}

@media (max-width: 760px) {
  .portfolio-shell {
    width: min(100%, 100%);
    padding: 52px 16px 72px;
  }

  .activity-section {
    padding: 0 16px 28px;
  }

  .tech-section {
    padding: 0 16px 28px;
  }

  .tech-stack-track {
    animation-duration: 22s;
  }

  .snippet-section {
    padding: 0 16px 28px;
  }

  .site-footer {
    padding: 0 16px 42px;
  }

  .hero h1 {
    font-size: clamp(1.6rem, 9vw, 2.2rem);
  }

  .hero-topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .tagline,
  .copy-stack p,
  .info-copy p,
  .project-panel p,
  .project-name {
    font-size: 0.82rem;
  }

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

  .education-row {
    flex-direction: column;
  }

  .education-percent {
    min-width: 0;
    text-align: left;
  }

  .education-timeline {
    padding-left: 0;
  }

  .education-timeline::before {
    left: 7px;
  }

  .education-step {
    grid-template-columns: 20px minmax(0, 1fr);
  }

  .education-step__year {
    grid-column: 2;
    justify-content: flex-start;
    padding-top: 0;
    margin-bottom: -4px;
  }

  .education-step__dot {
    grid-row: 1 / span 2;
    margin-top: 32px;
  }

  .education-step__content {
    grid-column: 2;
  }

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

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

  .snippet-window__meta {
    align-items: flex-start;
  }

  .snippet-window__meta--end {
    align-items: flex-start;
  }

  .snippet-window__bar {
    grid-template-columns: 1fr;
  }

  .snippet-window__footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .certificate-wall {
    columns: 1;
  }

  .now-card {
    position: static;
  }

  .project-toggle {
    grid-template-columns: 26px minmax(0, 1fr);
  }

  .project-year {
    grid-column: 2;
    margin-left: 2px;
    font-size: 0.76rem;
  }
}

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

  .hero,
  .section-block {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .filter-chip,
  .toggle-icon,
  .project-panel,
  .certificate-open,
  .tech-stack-track {
    transition: none;
  }

  .tech-stack-track {
    animation: none;
  }
}