#hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 480px;
  align-items: center;
  gap: 60px;
  padding: 120px 60px 80px;
  position: relative;
  z-index: 20;
  overflow: visible;
  isolation: isolate;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 212, 170, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 170, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

[data-theme="light"] .hero-grid-bg {
  background-image:
    linear-gradient(rgba(0, 140, 112, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 140, 112, 0.07) 1px, transparent 1px);
}

.hero-glow {
  position: absolute;
  top: -100px;
  right: 300px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

[data-theme="light"] .hero-glow {
  background: radial-gradient(circle, rgba(0, 140, 112, 0.06) 0%, transparent 70%);
}

.hero-content {
  position: relative;
  z-index: 5;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 36px;
  padding: 6px 16px;
  border: 1px solid rgba(0, 212, 170, 0.3);
  border-radius: 2px;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  animation: fadeUp 0.8s ease both;
}

.hero-name {
  font-family: "DM Serif Display", serif;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--text);
  animation: fadeUp 0.8s 0.1s ease both;
}

.hero-name em {
  font-style: italic;
  color: var(--accent);
}

.hero-subtitle {
  margin-top: 20px;
  font-family: "Syne", sans-serif;
  font-size: clamp(0.9rem, 1.8vw, 1.2rem);
  font-weight: 400;
  color: var(--muted2);
  animation: fadeUp 0.8s 0.2s ease both;
}

.hero-desc {
  max-width: 520px;
  margin-top: 24px;
  font-size: 0.76rem;
  line-height: 1.9;
  color: var(--muted2);
  animation: fadeUp 0.8s 0.3s ease both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  animation: fadeUp 0.8s 0.4s ease both;
}

.hero-photo-wrap {
  position: relative;
  z-index: 30;
  animation: fadeUp 0.8s 0.2s ease both;
}

.hero-photo-frame {
  position: relative;
  width: 420px;
  height: 520px;
}

.hero-photo-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--accent);
  transform: translate(12px, 12px);
  z-index: -1;
  opacity: 0.4;
  transition: opacity 0.3s;
}

.hero-photo-frame::after {
  content: "";
  position: absolute;
  bottom: -20px;
  left: -20px;
  width: 100px;
  height: 100px;
  border-bottom: 2px solid var(--accent);
  border-left: 2px solid var(--accent);
  opacity: 0.6;
}

.hero-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  filter: grayscale(15%) contrast(1.05);
  transition: filter 0.4s;
}

.hero-photo-frame:hover img {
  filter: grayscale(0%) contrast(1.08);
}

.hero-photo-tag {
  position: absolute;
  right: -14px;
  bottom: -14px;
  z-index: 3;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px 20px;
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero-stock-preview {
  position: relative;
  z-index: 60;
  width: 420px;
  max-width: 100%;
  margin-top: 28px;
}

.ticker-wrap {
  position: relative;
  z-index: 1;
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  padding: 12px 0;
  transition: background 0.4s;
}

.ticker {
  display: flex;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 40px;
  font-size: 0.67rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.ticker-item span {
  color: var(--accent);
  font-weight: 500;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

.stock-search-shell {
  margin-top: 2rem;
  display: grid;
  gap: 14px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
}

.stock-search-shell-compact {
  background:
    linear-gradient(120deg, rgba(0, 212, 170, 0.06), transparent 35%),
    var(--surface);
}

.stock-search-copy {
  display: grid;
  gap: 6px;
}

.stock-search-title {
  font-family: "Syne", sans-serif;
  font-size: clamp(0.95rem, 1.6vw, 1.2rem);
  font-weight: 700;
  color: var(--text);
}

.stock-search-desc {
  font-size: 0.64rem;
  line-height: 1.6;
  color: var(--muted2);
}

.stock-search-form {
  display: grid;
  gap: 8px;
  position: relative;
}

.stock-search-label {
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.stock-search-controls {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.stock-search-input {
  min-width: 0;
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 10px 12px;
  font-family: "DM Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
}

.stock-search-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(0, 212, 170, 0.12);
}

[data-theme="light"] .stock-search-input:focus {
  box-shadow: 0 0 0 2px rgba(0, 109, 87, 0.14);
}

.stock-search-button {
  justify-content: center;
  min-width: 92px;
  padding: 10px 14px;
  font-size: 0.6rem;
}

.stock-search-suggestions {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  left: 0;
  z-index: 120000;
  display: grid;
  gap: 2px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
}

.stock-search-suggestions[hidden] {
  display: none;
}

.stock-search-suggestion {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  font-family: "DM Mono", monospace;
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: left;
  padding: 8px 10px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.stock-search-suggestion:hover,
.stock-search-suggestion:focus-visible {
  outline: none;
  border-color: rgba(0, 212, 170, 0.28);
  background: rgba(0, 212, 170, 0.08);
  color: var(--accent);
}

.stock-search-status {
  min-height: 1.1em;
  font-size: 0.6rem;
  letter-spacing: 0.06em;
  color: var(--muted2);
}

.stock-search-status.is-error {
  color: #ff6b6b;
}

.stock-search-status.is-success {
  color: var(--accent);
}

.stock-search-result {
  display: grid;
  gap: 12px;
  padding: 14px;
  background:
    radial-gradient(circle at top right, rgba(0, 212, 170, 0.1), transparent 50%),
    var(--surface2);
  border: 1px solid rgba(0, 212, 170, 0.26);
}

.stock-search-result[hidden] {
  display: none;
}

.stock-search-head {
  display: flex;
  align-items: center;
  gap: 8px;
}

.stock-search-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  object-fit: cover;
  background: var(--surface);
}

.stock-search-symbol {
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.stock-search-name {
  margin-top: 2px;
  font-family: "Syne", sans-serif;
  font-size: 0.82rem;
  color: var(--text);
}

.stock-search-grid {
  display: grid;
  gap: 6px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stock-search-item {
  display: grid;
  gap: 4px;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.stock-search-item span {
  font-size: 0.53rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.stock-search-item strong {
  font-size: 0.66rem;
  color: var(--text);
}

.stock-search-item strong.is-positive {
  color: #14ba88;
}

.stock-search-item strong.is-negative {
  color: #ff6b6b;
}

.stock-search-item strong.is-neutral {
  color: var(--muted2);
}

#about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

#about .section-title {
  margin-bottom: 28px;
}

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 48px;
}

.stat-card {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 28px;
  transition: border-color 0.3s, background 0.4s;
}

.stat-card::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.stat-card:hover {
  border-color: rgba(0, 212, 170, 0.4);
}

.stat-card:hover::before {
  transform: scaleX(1);
}

.stat-num {
  font-family: "DM Serif Display", serif;
  font-size: 2.6rem;
  line-height: 1;
  color: var(--accent);
}

.stat-label {
  margin-top: 8px;
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.about-text {
  font-size: 0.8rem;
  line-height: 2;
  color: var(--muted2);
}

.about-text p + p {
  margin-top: 18px;
}

.about-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 44px;
  box-shadow: var(--card-shadow);
  transition: background 0.4s, border-color 0.3s;
}

.about-card::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 8px -8px -8px 8px;
  border: 1px solid rgba(0, 212, 170, 0.2);
}

.profile-name {
  font-family: "DM Serif Display", serif;
  font-size: 1.7rem;
  margin-bottom: 4px;
}

.profile-role {
  margin-bottom: 28px;
  font-size: 0.68rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.7rem;
}

.info-row:last-child {
  border-bottom: none;
}

.info-row .key {
  color: var(--muted);
  letter-spacing: 0.1em;
}

.info-row .val {
  color: var(--text);
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 8px 16px;
  background: rgba(201, 168, 76, 0.08);
  border: 1px solid rgba(201, 168, 76, 0.3);
  color: var(--gold);
  font-size: 0.63rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: background 0.4s;
}

#experience {
  background: var(--surface);
  transition: background 0.4s;
}

.exp-timeline {
  position: relative;
}

.exp-timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent), var(--border), transparent);
}

.exp-item {
  position: relative;
  padding-left: 48px;
  padding-bottom: 60px;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.6s, transform 0.6s;
}

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

.exp-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.exp-dot {
  position: absolute;
  top: 6px;
  left: -5px;
  width: 11px;
  height: 11px;
  border: 2px solid var(--accent);
  background: var(--bg);
  border-radius: 50%;
  transition: background 0.4s;
}

.exp-date {
  margin-bottom: 10px;
  font-size: 0.63rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
}

.exp-company {
  margin-bottom: 4px;
  font-family: "Syne", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
}

.exp-role {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--muted2);
}

.role-tag {
  background: rgba(0, 212, 170, 0.08);
  border: 1px solid rgba(0, 212, 170, 0.2);
  color: var(--accent);
  padding: 2px 10px;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.exp-bullets {
  list-style: none;
}

.exp-bullets li {
  position: relative;
  padding: 5px 0 5px 20px;
  font-size: 0.76rem;
  line-height: 1.8;
  color: var(--muted2);
}

.exp-bullets li::before {
  content: "->";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.7rem;
}

#skills {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.skill-cat-label {
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.skill-category {
  margin-bottom: 36px;
}

.skill-item {
  display: flex;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(30, 36, 48, 0.4);
}

[data-theme="light"] .skill-item {
  border-bottom-color: var(--border);
}

.skill-name {
  font-size: 0.76rem;
  color: var(--text);
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  margin-top: 8px;
}

.tech-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 12px 16px;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: var(--muted2);
  transition: all 0.3s;
}

.tech-chip:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 212, 170, 0.05);
}

.tech-chip-icon {
  font-size: 0.95rem;
}

.featured-chip {
  background: rgba(201, 168, 76, 0.06);
  border-color: rgba(201, 168, 76, 0.3);
  color: var(--gold);
}

.cert-preview-trigger {
  position: relative;
  justify-content: space-between;
}

.cert-preview-hint {
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.cert-preview-panel {
  position: absolute;
  top: calc(100% + 14px);
  right: 0;
  left: auto;
  z-index: 20;
  width: min(360px, calc(100vw - 48px));
  max-width: calc(100vw - 48px);
  padding: 14px;
  background: var(--surface);
  border: 1px solid rgba(201, 168, 76, 0.3);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.28);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-8px);
  transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
}

.cert-preview-header {
  display: block;
  margin-bottom: 10px;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
}

.cert-preview-panel iframe {
  width: 100%;
  height: 420px;
  border: 1px solid var(--border);
  background: #fff;
}

.cert-preview-trigger:hover .cert-preview-panel,
.cert-preview-trigger:focus-visible .cert-preview-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.cert-preview-trigger:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 4px;
}

@media (max-width: 1200px) {
  .cert-preview-panel {
    width: min(320px, calc(100vw - 32px));
    max-width: calc(100vw - 32px);
  }

  .cert-preview-trigger:hover .cert-preview-panel,
  .cert-preview-trigger:focus-visible .cert-preview-panel {
    transform: translateY(0);
  }
}

@media (max-width: 700px) {
  .cert-preview-panel {
    display: none;
  }
}

#research {
  background: var(--surface);
  transition: background 0.4s;
}

.research-card {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 36px;
  align-items: start;
  position: relative;
  overflow: hidden;
  margin-bottom: 2px;
  padding: 40px;
  background: var(--bg);
  border: 1px solid var(--border);
  transition: all 0.4s;
}

.research-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s;
}

.research-card:hover {
  border-color: rgba(0, 212, 170, 0.3);
}

.research-card:hover::before {
  transform: scaleY(1);
}

.research-num {
  padding-top: 4px;
  font-family: "DM Serif Display", serif;
  font-size: 2.8rem;
  line-height: 1;
  color: var(--border);
}

.research-title {
  margin-bottom: 12px;
  font-family: "Syne", sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.research-desc {
  font-size: 0.75rem;
  line-height: 1.8;
  color: var(--muted2);
}

.research-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.rtag {
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

#contact {
  position: relative;
  overflow: hidden;
  text-align: center;
}

.contact-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 212, 170, 0.06) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

[data-theme="light"] .contact-glow {
  background: radial-gradient(circle, rgba(0, 140, 112, 0.05) 0%, transparent 70%);
}

.contact-content {
  position: relative;
  z-index: 2;
}

.contact-title {
  margin-bottom: 20px;
  font-family: "DM Serif Display", serif;
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  line-height: 1;
}

.contact-title em {
  font-style: italic;
  color: var(--accent);
}

.contact-sub {
  max-width: 380px;
  margin-right: auto;
  margin-bottom: 44px;
  margin-left: auto;
  font-size: 0.76rem;
  line-height: 1.9;
  color: var(--muted2);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  padding: 14px 24px;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted2);
  text-decoration: none;
  transition: all 0.3s;
}

.contact-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(0, 212, 170, 0.05);
  transform: translateY(-3px);
}

@media (max-width: 1024px) {
  #hero {
    grid-template-columns: 1fr;
  }

  .hero-photo-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    justify-content: center;
    order: -1;
  }

  .hero-photo-frame {
    width: 280px;
    height: 350px;
  }
}

@media (max-width: 900px) {
  #hero {
    padding: 100px 24px 60px;
  }

  .hero-stock-preview {
    width: min(360px, 100%);
    margin-top: 0;
  }

  .stock-search-shell {
    padding: 24px;
  }

  .stock-search-controls {
    grid-template-columns: 1fr;
  }

  .stock-search-button {
    width: 100%;
  }

  .stock-search-grid {
    grid-template-columns: 1fr;
  }

  #about,
  #skills {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .research-card {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .research-num {
    font-size: 2rem;
  }
}