:root {
  --bg: #eef6ff;
  --surface: #ffffff;
  --surface-2: #e5f1fb;
  --text: #0f2744;
  --ink: #0a1b30;
  --muted: #4d6480;
  --primary: #0077e6;
  --primary-deep: #005bb3;
  --accent: #00b894;
  --accent-ink: #067a62;
  --warm: #ff7a3d;
  --border: #bfd3ea;
  --shadow: 0 16px 40px rgba(15, 39, 68, 0.1);
  --max-width: 1080px;
  --scroll-progress: 0%;
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --lift: 0 18px 36px rgba(0, 119, 230, 0.12);
  --lift-accent: 0 18px 36px rgba(0, 184, 148, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: var(--font-display);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: -20vmax;
  background:
    radial-gradient(circle at 12% 18%, rgba(0, 119, 230, 0.18), transparent 34%),
    radial-gradient(circle at 88% 8%, rgba(0, 184, 148, 0.16), transparent 30%),
    radial-gradient(circle at 72% 78%, rgba(255, 122, 61, 0.12), transparent 32%),
    radial-gradient(circle at 40% 60%, rgba(255, 255, 255, 0.75), transparent 40%);
  filter: blur(10px);
  z-index: -1;
  animation: ambientShift 14s ease-in-out infinite alternate;
}

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

.container {
  width: min(100% - 2rem, var(--max-width));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  border-bottom: 1px solid rgba(191, 211, 234, 0.9);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  z-index: 10;
  box-shadow: 0 8px 24px rgba(15, 39, 68, 0.04);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 3px;
  width: var(--scroll-progress);
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--warm));
  transition: width 0.15s ease-out;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 0;
}

.brand {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.12rem;
  letter-spacing: -0.03em;
  color: var(--ink);
}

.brand::before {
  content: "";
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 4px rgba(0, 119, 230, 0.12);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s ease;
}

.brand:hover {
  color: var(--primary-deep);
}

.brand:hover::before {
  transform: rotate(12deg) scale(1.12);
  box-shadow: 0 0 0 6px rgba(0, 184, 148, 0.16);
}

.brand-text {
  background: linear-gradient(110deg, var(--ink) 20%, var(--primary) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav {
  display: flex;
  gap: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
}

.nav a {
  position: relative;
  padding: 0.2rem 0;
  transition: color 0.2s ease;
}

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

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transition: width 0.22s ease;
}

.nav a:hover::after {
  width: 100%;
}

.hero {
  padding: 5.5rem 0 2.5rem;
  transition: transform 0.16s ease-out;
  will-change: transform;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(240px, 0.85fr);
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 0.75rem;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 3.35rem);
  line-height: 1.08;
  margin: 0 0 1rem;
  max-width: 16ch;
  letter-spacing: -0.035em;
  background: linear-gradient(120deg, var(--ink) 15%, var(--primary) 72%, var(--accent-ink) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-copy {
  color: var(--muted);
  font-size: 1.06rem;
  line-height: 1.75;
  max-width: 68ch;
}

.hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-portrait {
  position: relative;
  justify-self: end;
  width: min(100%, 360px);
}

.portrait-frame {
  position: relative;
  border-radius: 28px;
  padding: 4px;
  background: linear-gradient(
    145deg,
    rgba(0, 119, 230, 0.95),
    rgba(0, 184, 148, 0.85),
    rgba(255, 122, 61, 0.55)
  );
  box-shadow:
    0 24px 48px rgba(15, 39, 68, 0.14),
    0 0 0 1px rgba(0, 119, 230, 0.15);
  overflow: hidden;
  animation: portraitGlow 5.5s ease-in-out infinite alternate;
}

.portrait-frame::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 24px;
  pointer-events: none;
  box-shadow: inset 0 0 40px rgba(15, 39, 68, 0.08);
  z-index: 2;
}

.portrait-frame img {
  display: block;
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center 18%;
  border-radius: 24px;
  background: #d9e8f8;
}

.portrait-badge {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 3;
  padding: 0.7rem 0.85rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 119, 230, 0.2);
  backdrop-filter: blur(10px);
  display: grid;
  gap: 0.15rem;
  box-shadow: 0 10px 24px rgba(15, 39, 68, 0.1);
}

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

.portrait-badge strong {
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 600;
}

@keyframes portraitGlow {
  0% {
    filter: saturate(1);
    box-shadow:
      0 24px 48px rgba(15, 39, 68, 0.14),
      0 0 0 1px rgba(0, 119, 230, 0.15);
  }
  100% {
    filter: saturate(1.08);
    box-shadow:
      0 28px 56px rgba(15, 39, 68, 0.16),
      0 0 28px rgba(0, 184, 148, 0.2);
  }
}

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid var(--border);
  padding: 0.72rem 1.15rem;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.01em;
  transition:
    transform 0.28s var(--ease-out),
    box-shadow 0.28s ease,
    border-color 0.28s ease,
    background 0.28s ease,
    background-position 0.45s var(--ease-out),
    color 0.28s ease,
    filter 0.28s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn:active {
  transform: translateY(-1px) scale(0.985);
}

.btn.primary {
  background: linear-gradient(120deg, var(--primary) 0%, #0090ff 40%, var(--accent) 100%);
  background-size: 160% 100%;
  background-position: 0% 50%;
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 12px 28px rgba(0, 119, 230, 0.28);
}

.btn.primary:hover {
  background-position: 100% 50%;
  box-shadow: 0 18px 36px rgba(0, 119, 230, 0.34);
  filter: brightness(1.03);
}

.btn.ghost {
  color: var(--primary-deep);
  background: rgba(255, 255, 255, 0.72);
  border-color: rgba(0, 119, 230, 0.28);
}

.btn.ghost:hover {
  background: #ffffff;
  border-color: var(--primary);
  box-shadow: var(--lift);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1rem auto 0;
}

.metrics article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.metrics article:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 119, 230, 0.6);
  box-shadow: 0 14px 28px rgba(15, 39, 68, 0.1);
}

.metrics h2 {
  margin: 0;
  color: var(--primary);
  font-size: 1.45rem;
}

.metrics p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.95rem;
}

.section {
  padding: 3.2rem 0 0;
}

.section h2 {
  margin: 0 0 0.8rem;
  font-size: 1.45rem;
}

.section > p {
  color: var(--muted);
  max-width: 70ch;
  line-height: 1.7;
}

.tags {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.tags li {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
  color: var(--muted);
  font-size: 0.9rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.tags li:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 184, 148, 0.7);
}

.card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 12px;
  padding: 1.1rem;
  margin-top: 1rem;
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 184, 148, 0.45);
  box-shadow: 0 20px 36px rgba(15, 39, 68, 0.12);
}

.card header h3,
.card h3 {
  margin: 0;
}

.card header p,
.clients,
.impact {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.service-card {
  border-image: linear-gradient(
      120deg,
      rgba(0, 119, 230, 0.5),
      rgba(0, 184, 148, 0.25),
      rgba(0, 119, 230, 0.15)
    )
    1;
}

.card ul {
  margin: 0.85rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.55;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 0.9rem;
}

.publications-page .site-header {
  position: sticky;
}

.publications-hero {
  padding: 5rem 0 1.5rem;
}

.publications-grid-section {
  padding-bottom: 3rem;
}

.filter-panel {
  margin-bottom: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background:
    linear-gradient(160deg, rgba(0, 119, 230, 0.08), transparent 50%),
    rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
}

.filter-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  flex-wrap: wrap;
  margin-bottom: 0.9rem;
}

.filter-label {
  margin: 0;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.filter-status {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.filter-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.result-count {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.65rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 184, 148, 0.35);
  color: var(--accent-ink);
  background: rgba(0, 184, 148, 0.08);
  font-size: 0.82rem;
  font-weight: 600;
}

.filter-clear {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-size: 0.82rem;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.filter-clear:hover {
  color: var(--text);
  border-color: rgba(0, 119, 230, 0.6);
  transform: translateY(-1px);
}

.topic-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.topic-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--border);
  background: rgba(15, 39, 68, 0.06);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  overflow: hidden;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    color 0.2s ease,
    background 0.2s ease,
    box-shadow 0.2s ease;
}

.topic-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(0, 119, 230, 0.22), rgba(0, 184, 148, 0.12));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.topic-btn > * {
  position: relative;
  z-index: 1;
}

.topic-btn:hover {
  transform: translateY(-2px);
  color: var(--text);
  border-color: rgba(0, 119, 230, 0.55);
}

.topic-btn:hover::before {
  opacity: 1;
}

.topic-btn.is-active {
  color: #ffffff;
  border-color: transparent;
  background: linear-gradient(120deg, var(--primary), var(--accent));
  box-shadow: 0 10px 24px rgba(0, 119, 230, 0.28);
}

.topic-btn.is-active::before {
  opacity: 0;
}

.topic-btn-count {
  min-width: 1.35rem;
  height: 1.35rem;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  font-size: 0.74rem;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.topic-btn.is-active .topic-btn-count {
  background: rgba(255, 255, 255, 0.22);
  border-color: transparent;
  color: #ffffff;
}

.filter-search-wrap {
  margin-top: 0.9rem;
}

.filter-search {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  padding: 0.75rem 0.9rem;
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.filter-search:focus {
  border-color: rgba(0, 119, 230, 0.7);
  box-shadow: 0 0 0 3px rgba(0, 119, 230, 0.15);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.pub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.pub-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background:
    linear-gradient(160deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
    var(--surface);
  padding: 1rem;
  transform-style: preserve-3d;
  transition: transform 0.26s ease, box-shadow 0.26s ease, border-color 0.26s ease, opacity 0.35s ease;
}

.pub-card.is-filtering {
  opacity: 0;
  transform: translateY(18px) scale(0.98);
}

.pub-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: conic-gradient(
    from 0deg,
    rgba(0, 119, 230, 0),
    rgba(0, 119, 230, 0.22),
    rgba(0, 184, 148, 0.12),
    rgba(0, 119, 230, 0)
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  animation: spinSlow 10s linear infinite;
  z-index: 0;
}

.pub-card:hover::before {
  opacity: 1;
}

.pub-card > * {
  position: relative;
  z-index: 1;
}

.pub-card:hover {
  border-color: rgba(0, 119, 230, 0.7);
  box-shadow:
    0 25px 45px rgba(15, 39, 68, 0.12),
    0 0 0 1px rgba(0, 119, 230, 0.15) inset;
}

.pub-date {
  display: inline-block;
  color: var(--accent);
  font-size: 0.82rem;
  letter-spacing: 0.3px;
  margin-bottom: 0.5rem;
}

.pub-card h2 {
  margin: 0.2rem 0 0.6rem;
  font-size: 1.1rem;
  line-height: 1.4;
}

.pub-card p {
  color: var(--muted);
  line-height: 1.62;
  margin: 0 0 0.85rem;
}

.pub-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.9rem;
}

.pub-tags span {
  border: 1px solid rgba(0, 119, 230, 0.35);
  background: rgba(0, 119, 230, 0.1);
  color: var(--primary-deep);
  border-radius: 999px;
  padding: 0.22rem 0.6rem;
  font-size: 0.78rem;
}

.pub-card a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--primary-deep);
  font-weight: 600;
}

.pub-empty {
  margin-top: 1.2rem;
  text-align: center;
  border: 1px dashed rgba(0, 119, 230, 0.35);
  border-radius: 14px;
  padding: 2rem 1rem;
  background: rgba(232, 241, 251, 0.9);
}

.pub-empty h2 {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
}

.pub-empty p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.inline-link {
  display: inline-flex;
  margin-top: 0.45rem;
  color: var(--primary-deep);
  font-weight: 600;
}

.inline-link::after {
  content: "→";
  margin-left: 0.35rem;
  transform: translateX(0);
  transition: transform 0.2s ease;
}

.inline-link:hover::after {
  transform: translateX(4px);
}

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.cert-lab {
  margin-top: 0.35rem;
}

.cert-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--surface);
  transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
  width: 100%;
  padding: 0;
  text-align: left;
  color: inherit;
  font: inherit;
  cursor: pointer;
  appearance: none;
}

.cert-link {
  display: block;
  color: inherit;
  height: 100%;
}

.cert-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 119, 230, 0.55);
  box-shadow: 0 18px 34px rgba(15, 39, 68, 0.1);
}

.cert-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.cert-card.is-active {
  border-color: rgba(0, 184, 148, 0.65);
  box-shadow:
    0 0 0 1px rgba(0, 184, 148, 0.25),
    0 18px 34px rgba(15, 39, 68, 0.1);
  transform: translateY(-4px);
}

.cert-card.is-active .cert-code {
  color: var(--accent);
  border-color: rgba(0, 184, 148, 0.45);
}

.cert-media {
  position: relative;
  aspect-ratio: 4 / 3;
  background:
    linear-gradient(160deg, rgba(0, 119, 230, 0.12), transparent 55%),
    #eaf3fc;
  overflow: hidden;
}

.cert-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  background: #f7fbff;
  transition: transform 0.35s ease;
}

.cert-card:hover .cert-media img,
.cert-card.is-active .cert-media img {
  transform: scale(1.03);
}

.cert-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 0.35rem;
  color: var(--muted);
  background:
    radial-gradient(circle at 30% 20%, rgba(0, 119, 230, 0.18), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(0, 184, 148, 0.12), transparent 40%),
    #eaf3fc;
}

.cert-card--pending {
  opacity: 0.92;
}

.cert-placeholder span {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  border: 1px solid rgba(0, 119, 230, 0.4);
  color: var(--primary);
  font-weight: 700;
  letter-spacing: 0.4px;
  font-size: 0.85rem;
}

.cert-placeholder p {
  margin: 0;
  font-size: 0.86rem;
}

.cert-body {
  padding: 0.9rem 1rem 1.05rem;
}

.cert-code {
  display: inline-block;
  margin-bottom: 0.4rem;
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--primary);
}

.cert-body h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.4;
}

.cert-body p {
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.cert-briefing {
  margin-top: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(0, 184, 148, 0.05), transparent 42%),
    linear-gradient(205deg, rgba(0, 119, 230, 0.08), transparent 50%),
    var(--surface);
  overflow: hidden;
  position: relative;
}

.cert-briefing::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), var(--primary));
}

.cert-briefing-loading {
  margin: 0;
  padding: 1.4rem 1.5rem;
  color: var(--muted);
}

.briefing-inner {
  padding: 1.35rem 1.4rem 1.5rem 1.55rem;
}

.briefing-inner.is-entering {
  opacity: 0;
  transform: translateY(12px);
}

.briefing-inner.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.briefing-head {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1.5fr 1fr;
  align-items: start;
  padding-bottom: 1.15rem;
  border-bottom: 1px solid rgba(167, 190, 214, 0.55);
}

.briefing-kicker {
  margin: 0 0 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.briefing-head h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.4vw, 1.7rem);
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.briefing-hook {
  margin: 0.65rem 0 0;
  color: var(--muted);
  max-width: 42rem;
  line-height: 1.55;
}

.briefing-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.cert-pdf-btn {
  margin-top: 0.25rem;
}

.cert-status-chip {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.4rem 0.7rem;
  border: 1px dashed rgba(0, 184, 148, 0.45);
  border-radius: 8px;
  color: var(--accent-ink);
  font-size: 0.84rem;
}

.briefing-layout {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 1.5rem;
  margin-top: 1.25rem;
}

.briefing-label {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.prep-track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  position: relative;
}

.prep-track::before {
  content: "";
  position: absolute;
  left: 1.05rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 1px;
  background: linear-gradient(180deg, rgba(0, 184, 148, 0.55), rgba(0, 119, 230, 0.2));
}

.prep-step {
  display: grid;
  grid-template-columns: 2.1rem 1fr;
  gap: 0.85rem;
  padding: 0.65rem 0;
  position: relative;
}

.prep-phase {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  color: #ffffff;
  background: var(--accent);
  position: relative;
  z-index: 1;
}

.prep-step h4 {
  margin: 0.15rem 0 0.3rem;
  font-family: var(--font-display);
  font-size: 1.02rem;
}

.prep-step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.skill-unlocks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.7rem;
}

.skill-unlocks li {
  display: grid;
  gap: 0.15rem;
  padding-left: 0.85rem;
  border-left: 2px solid rgba(0, 119, 230, 0.45);
}

.skill-unlocks strong {
  font-family: var(--font-display);
  font-size: 0.98rem;
}

.skill-unlocks span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.career-leverage {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(167, 190, 214, 0.55);
}

.career-leverage > p:not(.briefing-label):not(.where-used) {
  margin: 0;
  color: var(--text);
  line-height: 1.6;
  font-size: 0.95rem;
}

.where-used {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.where-used span {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}

.briefing-stack {
  margin-top: 1.35rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(167, 190, 214, 0.55);
}

.briefing-stack ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 0.9rem;
}

.briefing-stack li {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text);
  position: relative;
  padding-left: 0.85rem;
}

.briefing-stack li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 1px;
  background: var(--primary);
}

@media (max-width: 820px) {
  .briefing-head,
  .briefing-layout {
    grid-template-columns: 1fr;
  }

  .briefing-meta {
    align-items: stretch;
  }
}

.pub-card a::after {
  content: "→";
  transform: translateX(0);
  transition: transform 0.2s ease;
}

.pub-card a:hover::after {
  transform: translateX(4px);
}

@keyframes spinSlow {
  to {
    transform: rotate(360deg);
  }
}

.writing-list,
.split ul {
  color: var(--muted);
  line-height: 1.6;
}

.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.contact-desk {
  margin-top: 1.5rem;
  padding: 0 0 3.5rem;
}

.contact-desk-shell {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 0% 0%, rgba(0, 184, 148, 0.1), transparent 50%),
    radial-gradient(ellipse 70% 50% at 100% 100%, rgba(0, 119, 230, 0.12), transparent 48%),
    linear-gradient(160deg, #ffffff 0%, #f3f9ff 55%, #eaf6f2 100%);
}

.contact-desk-shell::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 119, 230, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 119, 230, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 85%);
  pointer-events: none;
}

.contact-desk-shell > * {
  position: relative;
  z-index: 1;
}

.contact-kicker {
  margin: 0 0 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.contact-desk-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.2vw, 2.35rem);
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 18ch;
}

.contact-lead {
  margin: 0.85rem 0 0;
  color: var(--muted);
  max-width: 52ch;
  line-height: 1.65;
  font-size: 1.02rem;
}

.contact-presence {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 1.1rem 0 0;
  padding: 0.45rem 0.75rem 0.45rem 0.55rem;
  border: 1px solid rgba(0, 184, 148, 0.28);
  border-radius: 999px;
  background: rgba(0, 184, 148, 0.06);
  color: var(--accent-ink);
  font-size: 0.88rem;
}

.presence-dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 rgba(0, 184, 148, 0.55);
  animation: presencePulse 2.2s ease-out infinite;
}

@keyframes presencePulse {
  0% {
    box-shadow: 0 0 0 0 rgba(0, 184, 148, 0.5);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(0, 184, 148, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(0, 184, 148, 0);
  }
}

.contact-channels {
  margin-top: 1.6rem;
  display: grid;
  gap: 0.65rem;
}

.channel-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: stretch;
}

.channel-row--static {
  grid-template-columns: 1fr;
}

.channel-main {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1.1rem;
  border: 1px solid rgba(167, 190, 214, 0.7);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.88);
  transition:
    border-color 0.25s ease,
    background 0.25s ease,
    transform 0.25s ease;
}

a.channel-main:hover {
  border-color: rgba(0, 119, 230, 0.55);
  background: rgba(255, 255, 255, 1);
  transform: translateX(4px);
}

.channel-kind {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
}

.channel-value {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.18rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}

.channel-cta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
}

a.channel-main:hover .channel-cta {
  color: var(--accent);
}

.channel-copy {
  min-width: 4.6rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.channel-copy:hover {
  border-color: rgba(0, 184, 148, 0.5);
  color: var(--accent);
}

.channel-copy.is-copied {
  border-color: rgba(0, 184, 148, 0.7);
  color: #ffffff;
  background: var(--accent);
}

.contact-footer-row {
  margin-top: 1.5rem;
  padding-top: 1.35rem;
  border-top: 1px solid rgba(167, 190, 214, 0.55);
  display: grid;
  gap: 1.25rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.contact-network {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.4rem;
}

.contact-network a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.45rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  transition: color 0.2s ease, transform 0.2s ease;
}

.contact-network a span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--muted);
}

.contact-network a:hover {
  color: var(--accent);
  transform: translateY(-1px);
}

@media (max-width: 720px) {
  .channel-main {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .channel-cta {
    justify-self: start;
  }

  .channel-row {
    grid-template-columns: 1fr;
  }

  .channel-copy {
    min-height: 2.6rem;
  }

  .contact-desk-copy h2 {
    max-width: none;
  }
}

.social-hint {
  font-size: 0.9rem;
  color: var(--accent);
}

.social-links {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.social-links a {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  font-size: 0.92rem;
  transition: transform 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.social-links a:hover {
  transform: translateY(-2px);
  border-color: rgba(0, 119, 230, 0.75);
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(24px) scale(0.99);
  transition:
    opacity 0.7s ease,
    transform 0.7s cubic-bezier(0.21, 1, 0.32, 1);
  transition-delay: var(--delay, 0ms);
}

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

@keyframes ambientShift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(2vw, -1.5vh, 0) scale(1.07);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }

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

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem 0 2.2rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.55);
}

@media (max-width: 720px) {
  .site-header .container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
  }

  .nav {
    flex-wrap: wrap;
    gap: 0.65rem;
    font-size: 0.9rem;
  }

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

  .hero-portrait {
    justify-self: center;
    width: min(100%, 300px);
    order: -1;
  }

  .portrait-frame img {
    height: 360px;
  }

  h1 {
    max-width: none;
  }
}


.section h2,
.card h3,
.card header h3 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.metrics article,
.card,
.cert-card,
.filter-panel,
.cert-briefing,
.contact-desk-shell {
  box-shadow: var(--shadow);
}

.topic-btn.is-active,
.topic-btn[aria-selected="true"] {
  color: #ffffff !important;
}

/* ——— Minimal micro-interactions (bright theme) ——— */

.section {
  transition: transform 0.35s var(--ease-out);
}

.section:hover > h2 {
  color: var(--primary-deep);
}

.section > h2 {
  transition: color 0.3s ease, letter-spacing 0.35s var(--ease-out);
}

.section:hover > h2 {
  letter-spacing: -0.015em;
}

.metrics article {
  position: relative;
  overflow: hidden;
  transition:
    transform 0.35s var(--ease-out),
    border-color 0.3s ease,
    box-shadow 0.35s ease;
}

.metrics article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--primary), var(--accent));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.35s var(--ease-out);
}

.metrics article:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 119, 230, 0.45);
  box-shadow: var(--lift);
}

.metrics article:hover::before {
  transform: scaleY(1);
}

.metrics article:hover h2 {
  transform: translateX(4px);
}

.metrics h2 {
  transition: transform 0.35s var(--ease-out), color 0.3s ease;
}

.tags li {
  transition:
    transform 0.28s var(--ease-out),
    border-color 0.28s ease,
    background 0.28s ease,
    color 0.28s ease,
    box-shadow 0.28s ease;
}

.tags li:hover {
  transform: translateY(-3px);
  border-color: rgba(0, 184, 148, 0.55);
  background: rgba(0, 184, 148, 0.08);
  color: var(--accent-ink);
  box-shadow: 0 8px 18px rgba(0, 184, 148, 0.12);
}

.card {
  position: relative;
  overflow: hidden;
  transition:
    transform 0.35s var(--ease-out),
    border-color 0.3s ease,
    box-shadow 0.35s ease;
}

.card::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--warm));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s var(--ease-out);
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 184, 148, 0.4);
  box-shadow: var(--lift-accent);
}

.card:hover::after {
  transform: scaleX(1);
}

.service-card:hover,
.grid .card:hover {
  border-color: rgba(0, 119, 230, 0.4);
}

.cert-card {
  transition:
    transform 0.35s var(--ease-out),
    border-color 0.3s ease,
    box-shadow 0.35s ease;
}

.cert-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 119, 230, 0.45);
  box-shadow: var(--lift);
}

.cert-card.is-active:hover {
  border-color: rgba(0, 184, 148, 0.65);
  box-shadow: var(--lift-accent);
}

.cert-briefing,
.contact-desk-shell,
.filter-panel {
  transition:
    transform 0.4s var(--ease-out),
    box-shadow 0.4s ease,
    border-color 0.35s ease;
}

.cert-briefing:hover,
.contact-desk-shell:hover,
.filter-panel:hover {
  border-color: rgba(0, 119, 230, 0.35);
  box-shadow: 0 22px 48px rgba(0, 119, 230, 0.1);
}

a.channel-main {
  position: relative;
}

a.channel-main::after {
  content: "";
  position: absolute;
  left: 1.1rem;
  right: 1.1rem;
  bottom: 0.55rem;
  height: 1px;
  background: linear-gradient(90deg, var(--primary), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
}

a.channel-main:hover {
  transform: translateX(6px);
  border-color: rgba(0, 119, 230, 0.45);
  box-shadow: var(--lift);
}

a.channel-main:hover::after {
  transform: scaleX(1);
}

a.channel-main:hover .channel-cta {
  transform: translateX(3px);
}

.channel-cta {
  transition: color 0.25s ease, transform 0.3s var(--ease-out);
}

.channel-copy {
  transition:
    transform 0.28s var(--ease-out),
    border-color 0.25s ease,
    color 0.25s ease,
    background 0.25s ease,
    box-shadow 0.28s ease;
}

.channel-copy:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(0, 184, 148, 0.14);
}

.contact-network a {
  position: relative;
  transition: color 0.25s ease, transform 0.3s var(--ease-out);
}

.contact-network a::after {
  content: "→";
  margin-left: 0.25rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.25s ease, transform 0.3s var(--ease-out);
  color: var(--accent);
}

.contact-network a:hover {
  transform: translateY(-2px);
  color: var(--primary-deep);
}

.contact-network a:hover::after {
  opacity: 1;
  transform: translateX(0);
}

.pub-card {
  transition:
    transform 0.35s var(--ease-out),
    box-shadow 0.35s ease,
    border-color 0.3s ease,
    opacity 0.35s ease;
}

.pub-card:hover {
  transform: translateY(-5px);
}

.pub-card a {
  transition: color 0.25s ease, gap 0.3s var(--ease-out);
}

.pub-card:hover a {
  gap: 0.55rem;
  color: var(--primary);
}

.topic-btn {
  transition:
    transform 0.28s var(--ease-out),
    border-color 0.25s ease,
    color 0.25s ease,
    box-shadow 0.28s ease,
    background 0.28s ease;
}

.topic-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 22px rgba(0, 119, 230, 0.12);
}

.inline-link {
  transition: color 0.25s ease;
}

.inline-link:hover {
  color: var(--primary);
}

.portrait-frame {
  transition: transform 0.45s var(--ease-out);
}

.hero-portrait:hover .portrait-frame {
  transform: translateY(-4px);
}

.nav a {
  transition: color 0.22s ease, transform 0.22s var(--ease-out);
}

.nav a:hover {
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .metrics article::before,
  .card::after,
  a.channel-main::after,
  .contact-network a::after {
    display: none !important;
  }
}