/*
 * Ryan Ellison, PhD — Site Styles
 *
 * Design direction:
 * - clean, precise, product-oriented visual language
 * - near-black and white foundation
 * - restrained gray surfaces
 * - Dodger Blue as the principal accent
 *
 * The file is organized from global foundations to components and then
 * responsive behavior. CSS custom properties centralize the design system.
 */

/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */

:root {
  --color-black: #05070a;
  --color-black-soft: #0b0e13;
  --color-charcoal: #151922;
  --color-gray-900: #242a33;
  --color-gray-700: #59616d;
  --color-gray-500: #8b94a1;
  --color-gray-300: #d4d9e0;
  --color-gray-200: #e8ebef;
  --color-gray-100: #f3f5f7;
  --color-white: #ffffff;
  --color-blue: #1e90ff;
  --color-blue-dark: #006fd6;
  --color-blue-light: #8bc8ff;

  --color-text: var(--color-black);
  --color-text-muted: var(--color-gray-700);
  --color-border: rgba(5, 7, 10, 0.12);

  --font-sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;

  --max-width: 1180px;
  --header-height: 76px;
  --radius-small: 12px;
  --radius-medium: 20px;
  --radius-large: 30px;

  --shadow-small: 0 8px 24px rgba(5, 7, 10, 0.08);
  --shadow-medium: 0 24px 70px rgba(5, 7, 10, 0.13);
  --transition-fast: 180ms ease;
  --transition-standard: 280ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* --------------------------------------------------------------------------
   Reset and global foundations
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 20px);
}

body {
  margin: 0;
  color: var(--color-text);
  background: var(--color-white);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.nav-open {
  overflow: hidden;
}

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
  max-width: 100%;
}

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

h1,
h2,
h3 {
  line-height: 1.08;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 760px;
  margin-bottom: 28px;
  font-size: clamp(3.25rem, 6.4vw, 6.6rem);
  font-weight: 660;
}

h2 {
  margin-bottom: 24px;
  font-size: clamp(2.25rem, 4.4vw, 4.6rem);
  font-weight: 640;
}

h3 {
  margin-bottom: 14px;
  font-size: 1.45rem;
  font-weight: 640;
}

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

/* --------------------------------------------------------------------------
   Shared utilities
   -------------------------------------------------------------------------- */

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

.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;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: var(--color-white);
  background: var(--color-blue);
  border-radius: 8px;
  transform: translateY(-160%);
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

.eyebrow {
  margin-bottom: 20px;
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow-dark {
  color: var(--color-blue-dark);
}

.eyebrow-on-blue {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Header, navigation, and light hero
   -------------------------------------------------------------------------- */

/* The homepage header begins as a light, integrated part of the hero. */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  color: var(--color-black);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 1px 0 rgba(5, 7, 10, 0.08);
  backdrop-filter: blur(18px) saturate(140%);
  transition:
    background var(--transition-standard),
    box-shadow var(--transition-standard),
    backdrop-filter var(--transition-standard);
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 8px 32px rgba(5, 7, 10, 0.08);
}

/* The blog retains its dark masthead treatment. */
.blog-page .site-header {
  color: var(--color-white);
  background: rgba(5, 7, 10, 0.88);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  color: var(--color-white);
  background: linear-gradient(145deg, var(--color-blue), var(--color-blue-dark));
  border-radius: 11px;
  box-shadow: 0 8px 24px rgba(30, 144, 255, 0.22);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.88rem;
}

.nav a {
  color: rgba(5, 7, 10, 0.68);
  transition: color var(--transition-fast);
}

.nav a:hover,
.nav a:focus-visible,
.nav a[aria-current="page"] {
  color: var(--color-black);
}

.blog-page .nav a {
  color: rgba(255, 255, 255, 0.76);
}

.blog-page .nav a:hover,
.blog-page .nav a:focus-visible,
.blog-page .nav a[aria-current="page"] {
  color: var(--color-white);
}

.nav-cta {
  padding: 8px 15px;
  color: var(--color-blue-dark) !important;
  border: 1px solid rgba(30, 144, 255, 0.34);
  border-radius: 999px;
}

.blog-page .nav-cta {
  color: var(--color-white) !important;
  border-color: rgba(255, 255, 255, 0.22);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  color: currentColor;
  background: transparent;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 23px;
  height: 1.5px;
  margin: 6px auto;
  background: currentColor;
  transition: transform var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-of-type(2) {
  transform: translateY(3.75px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-of-type(3) {
  transform: translateY(-3.75px) rotate(-45deg);
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  position: relative;
  padding: 126px 0 64px;
  overflow: hidden;
  color: var(--color-black);
  background:
    radial-gradient(circle at 84% 20%, rgba(30, 144, 255, 0.13), transparent 30%),
    linear-gradient(180deg, #f8fafc 0%, var(--color-gray-100) 100%);
}

/* A very subtle grid adds technical texture without making the hero dark. */
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(5, 7, 10, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 7, 10, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 88%);
}

.hero-glow {
  position: absolute;
  top: -34%;
  right: -10%;
  width: 740px;
  height: 740px;
  background: radial-gradient(circle, rgba(30, 144, 255, 0.16), transparent 68%);
  filter: blur(10px);
  pointer-events: none;
}

/* The copy and portrait share one continuous product-like surface. */
.hero-layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, 0.92fr);
  gap: 0;
  align-items: stretch;
  min-height: 540px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(5, 7, 10, 0.1);
  border-radius: 34px;
  box-shadow: 0 28px 80px rgba(5, 7, 10, 0.1);
  backdrop-filter: blur(18px);
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(42px, 5vw, 72px);
}

.hero-copy .eyebrow {
  color: var(--color-blue-dark);
}

.hero-copy h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(2.6rem, 4.4vw, 4.8rem);
}

.hero-lede {
  max-width: 680px;
  margin-bottom: 30px;
  color: var(--color-gray-700);
  font-size: 1.12rem;
}

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

.hero .button-secondary {
  color: var(--color-black);
  border-color: rgba(5, 7, 10, 0.2);
}

.hero .button-secondary:hover,
.hero .button-secondary:focus-visible {
  color: var(--color-blue-dark);
  border-color: rgba(30, 144, 255, 0.5);
  background: rgba(30, 144, 255, 0.06);
}

.hero-meta {
  display: flex;
  gap: 36px;
  margin-top: 42px;
  padding-top: 24px;
  color: var(--color-gray-700);
  border-top: 1px solid rgba(5, 7, 10, 0.1);
  font-size: 0.83rem;
}

.hero-meta strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-black);
  font-size: 0.91rem;
  font-weight: 650;
}

/* The portrait is now the second half of the same hero card, not a floating card. */
.portrait-stage {
  position: relative;
  min-width: 0;
  min-height: 540px;
  padding: 18px;
  background:
    linear-gradient(145deg, rgba(30, 144, 255, 0.12), rgba(232, 235, 239, 0.72));
}

.portrait-frame {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--color-gray-200);
  border: 1px solid rgba(5, 7, 10, 0.08);
  border-radius: 24px;
}

.portrait-frame::after {
  position: absolute;
  inset: auto 0 0;
  height: 28%;
  content: "";
  background: linear-gradient(to top, rgba(5, 7, 10, 0.2), transparent);
  pointer-events: none;
}

.portrait {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  filter: saturate(0.82) contrast(1.02);
}

.status-card {
  position: absolute;
  right: 34px;
  bottom: 34px;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  color: rgba(255, 255, 255, 0.92);
  background: rgba(5, 7, 10, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  box-shadow: var(--shadow-small);
  backdrop-filter: blur(16px);
  font-size: 0.76rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  background: var(--color-blue);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(30, 144, 255, 0.16);
}

/* --------------------------------------------------------------------------
   Buttons and text links
   -------------------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 21px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 650;
  transition:
    transform var(--transition-fast),
    background var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.button-primary {
  color: var(--color-white);
  background: var(--color-blue);
  box-shadow: 0 12px 30px rgba(30, 144, 255, 0.22);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-blue-dark);
}

.button-secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.24);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.06);
}

.button-light {
  color: var(--color-black);
  background: var(--color-white);
}

.button-outline-light {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.34);
}

.text-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--color-blue-dark);
  font-weight: 650;
}

.text-link span {
  display: inline-block;
  transition: transform var(--transition-fast);
}

.text-link:hover span {
  transform: translateX(4px);
}

.text-link-on-blue {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Sections and shared layouts
   -------------------------------------------------------------------------- */

.section {
  padding: 116px 0;
}

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

.section-gray {
  background: var(--color-gray-100);
}

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

.section-blue {
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue));
}

.section-contact {
  padding-top: 64px;
  color: var(--color-white);
  background: var(--color-black);
}

.section-heading {
  max-width: 810px;
}

.section-heading-centered {
  margin: 0 auto 58px;
  text-align: center;
}

.section-heading-centered > p:last-child {
  max-width: 650px;
  margin-inline: auto;
  color: rgba(255, 255, 255, 0.56);
}

.split-intro {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 100px;
  align-items: start;
}

.prose {
  color: var(--color-text-muted);
  font-size: 1.08rem;
}

.prose p:first-child {
  color: var(--color-text);
  font-size: 1.24rem;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 74px;
  border-top: 1px solid var(--color-border);
}

.metric-row div {
  padding: 31px 22px 0;
  border-right: 1px solid var(--color-border);
}

.metric-row div:first-child {
  padding-left: 0;
}

.metric-row div:last-child {
  border-right: 0;
}

.metric-row strong {
  display: block;
  margin-bottom: 5px;
  font-size: 1.9rem;
  font-weight: 650;
  letter-spacing: -0.04em;
}

.metric-row span {
  color: var(--color-text-muted);
  font-size: 0.81rem;
}

/* --------------------------------------------------------------------------
   Research cards
   -------------------------------------------------------------------------- */

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.research-card {
  min-height: 430px;
  padding: 32px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-medium);
  transition:
    transform var(--transition-standard),
    border-color var(--transition-standard),
    background var(--transition-standard);
}

.research-card:hover {
  transform: translateY(-5px);
  background: linear-gradient(145deg, rgba(30, 144, 255, 0.11), rgba(255, 255, 255, 0.02));
  border-color: rgba(30, 144, 255, 0.48);
}

.card-heading-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 72px;
}

.card-index {
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.card-symbol {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  color: var(--color-blue-light);
  background: rgba(30, 144, 255, 0.08);
  border: 1px solid rgba(30, 144, 255, 0.2);
  border-radius: 16px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
}

.research-card p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.94rem;
}

.research-card .research-discipline {
  margin-bottom: 10px;
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.tag-list li {
  padding: 5px 9px;
  color: rgba(255, 255, 255, 0.66);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  font-size: 0.7rem;
}

/* --------------------------------------------------------------------------
   Research programs
   -------------------------------------------------------------------------- */

.program-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(64px, 8vw, 120px);
  align-items: start;
}

.program-heading {
  align-self: start;
}

.program-heading h2 {
  font-size: clamp(2rem, 3.5vw, 3.25rem);
}

.program-list {
  margin-top: 0;
  border-top: 1px solid var(--color-border);
}

.program {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 28px;
  padding: 31px 0;
  border-bottom: 1px solid var(--color-border);
}

.program > span {
  color: var(--color-blue-dark);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.program h3 {
  margin-bottom: 8px;
}

.program p {
  max-width: none;
  margin: 0;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Project cards
   -------------------------------------------------------------------------- */

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 52px;
}

.project-card {
  display: flex;
  flex-direction: column;
  min-height: 316px;
  padding: 28px;
  background: var(--color-white);
  border: 1px solid rgba(5, 7, 10, 0.08);
  border-radius: var(--radius-medium);
  transition:
    transform var(--transition-standard),
    box-shadow var(--transition-standard),
    border-color var(--transition-standard);
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: rgba(30, 144, 255, 0.32);
  box-shadow: 0 22px 52px rgba(5, 7, 10, 0.09);
}

.project-card-featured {
  color: inherit;
  background: var(--color-white);
  border: 1px solid rgba(5, 7, 10, 0.08);
}

.project-card-featured .project-type {
  color: var(--color-blue-dark);
}

.project-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-type {
  color: var(--color-blue-dark);
  font-weight: 700;
}



.project-status {
  color: var(--color-gray-500);
}

.project-status-stacked {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.2rem;
  line-height: 1.15;
  text-align: right;
}

.project-card h3 {
  margin: 56px 0 14px;
  font-size: 2rem;
}

.project-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.91rem;
}

.project-card-featured p,
.project-card-featured .project-status,
.project-card-featured .project-footer {
  color: rgba(255, 255, 255, 0.58);
}

.project-footer {
  padding-top: 28px;
  margin-top: auto;
  color: var(--color-text-muted);
  font-size: 0.71rem;
}

/* --------------------------------------------------------------------------
   Publications
   -------------------------------------------------------------------------- */

.publication-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 92px;
}

.supporting {
  color: var(--color-text-muted);
}

.publication-list {
  border-top: 1px solid var(--color-border);
}

.publication {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 22px;
  padding: 27px 0;
  border-bottom: 1px solid var(--color-border);
}

.publication time {
  color: var(--color-blue-dark);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.publication h3 {
  margin-bottom: 7px;
  font-size: 1.05rem;
  line-height: 1.44;
  letter-spacing: -0.015em;
}

.publication p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.82rem;
}

.publication a {
  display: inline-block;
  margin-top: 8px;
  color: var(--color-blue-dark);
  font-size: 0.75rem;
  font-weight: 700;
}

/* --------------------------------------------------------------------------
   Teaching and contact
   -------------------------------------------------------------------------- */

.teaching-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 92px;
}

.teaching-copy {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.07rem;
}

.teaching-tags,
.topic-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 28px;
}

.teaching-tags span,
.topic-row span {
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  font-size: 0.74rem;
}

.contact-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 52px;
  align-items: end;
  padding: 60px;
  background:
    linear-gradient(135deg, rgba(30, 144, 255, 0.14), rgba(255, 255, 255, 0.025));
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-large);
}

.contact-card h2 {
  max-width: 700px;
}

.contact-card p:last-child {
  max-width: 660px;
  color: rgba(255, 255, 255, 0.6);
}

.contact-actions {
  display: flex;
  gap: 10px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  padding: 25px 0;
  color: rgba(255, 255, 255, 0.48);
  background: var(--color-black);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.77rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 30px;
}

.footer-row p {
  margin: 0;
}

.footer-row div {
  display: flex;
  gap: 22px;
}

.footer-row a:hover,
.footer-row a:focus-visible {
  color: var(--color-white);
}

/* --------------------------------------------------------------------------
   Blog and utility pages
   -------------------------------------------------------------------------- */

.blog-hero {
  position: relative;
  padding: 180px 0 104px;
  overflow: hidden;
  color: var(--color-white);
  background: linear-gradient(135deg, var(--color-black), #0a1724);
}

.blog-hero .shell {
  position: relative;
}

.blog-hero h1 {
  margin-bottom: 12px;
}

.blog-hero p:last-child {
  max-width: 700px;
  color: rgba(255, 255, 255, 0.64);
  font-size: 1.12rem;
}

.empty-state {
  max-width: 760px;
  text-align: center;
}

.empty-symbol {
  display: grid;
  place-items: center;
  width: 82px;
  height: 82px;
  margin: 0 auto 28px;
  color: var(--color-blue-dark);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  font-family: var(--font-mono);
  font-size: 2rem;
}

.empty-state p {
  color: var(--color-text-muted);
  font-size: 1.06rem;
}

.topic-row {
  justify-content: center;
  margin: 28px 0 36px;
}

.topic-row span {
  color: var(--color-text-muted);
  border-color: var(--color-border);
}

.error-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
  color: var(--color-white);
  background: var(--color-black);
}

.error-page .empty-state p {
  color: rgba(255, 255, 255, 0.62);
}

/* --------------------------------------------------------------------------
   Progressive reveal animation
   -------------------------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 700ms ease,
    transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* --------------------------------------------------------------------------
   Responsive behavior
   -------------------------------------------------------------------------- */

@media (max-width: 980px) {
  .hero {
    min-height: auto;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .portrait-stage {
    min-height: 480px;
  }

  .split-intro,
  .publication-layout,
  .teaching-layout,
  .program-layout {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .research-grid,
  .project-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .metric-row div:nth-child(2) {
    border-right: 0;
  }

  .contact-card {
    grid-template-columns: 1fr;
  }

  .nav {
    gap: 18px;
  }

  .nav a {
    font-size: 0.81rem;
  }
}

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

  .brand-name {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    top: 68px;
    right: 15px;
    left: 15px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    color: var(--color-black);
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid rgba(5, 7, 10, 0.12);
    border-radius: 18px;
    box-shadow: var(--shadow-medium);
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    padding: 12px 14px;
    font-size: 0.9rem;
  }

  .nav-cta {
    border: 0;
  }

  .hero {
    padding: 104px 0 42px;
  }

  .hero-layout {
    border-radius: 24px;
  }

  .hero-copy {
    padding: 36px 28px 34px;
  }

  .portrait-stage {
    min-height: 390px;
    padding: 12px;
  }

  .portrait-frame {
    border-radius: 18px;
  }

  h1 {
    font-size: clamp(3rem, 14vw, 4.6rem);
  }

  .hero-meta {
    flex-direction: column;
    gap: 14px;
  }

  .status-card {
    right: 24px;
    bottom: 24px;
  }

  .section {
    padding: 80px 0;
  }

  .research-grid,
  .project-grid {
    grid-template-columns: 1fr;
  }

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

  .metric-row div {
    padding-left: 0;
    border-right: 0;
  }

  .program {
    grid-template-columns: 44px 1fr;
  }

  .contact-card {
    padding: 36px 25px;
  }

  .contact-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

  .footer-row div {
    flex-wrap: wrap;
  }

  .publication {
    grid-template-columns: 52px 1fr;
  }
}

/* Respect the user's operating-system motion preference. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

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

  .button:hover,
  .project-card:hover,
  .research-card:hover {
    transform: none;
  }
}

/* --------------------------------------------------------------------------
   Requested structural additions
   -------------------------------------------------------------------------- */

.hero-name {
  margin-bottom: 5px;
  color: var(--color-black);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.hero-title {
  margin-bottom: 20px;
}

.button-blue-outline {
  color: var(--color-blue-dark);
  background: rgba(30, 144, 255, 0.03);
  border-color: var(--color-blue);
  box-shadow: 0 10px 26px rgba(30, 144, 255, 0.1);
}

.button-blue-outline:hover,
.button-blue-outline:focus-visible {
  color: var(--color-white);
  background: var(--color-blue);
  border-color: var(--color-blue);
}

.button-blue-outline-dark {
  color: var(--color-blue-light);
  background: transparent;
  border-color: var(--color-blue);
}

.button-blue-outline-dark:hover,
.button-blue-outline-dark:focus-visible {
  color: var(--color-white);
  background: var(--color-blue);
  border-color: var(--color-blue);
}

.agenda-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 100px;
  align-items: start;
}

.agenda-copy {
  color: var(--color-text-muted);
  font-size: 1.08rem;
}

.agenda-copy > p:first-child {
  color: var(--color-text);
  font-size: 1.2rem;
}

.agenda-note {
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
  font-size: 0.92rem;
}

.teaching-subsection {
  margin-top: 64px;
  padding-top: 42px;
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.teaching-subheading {
  max-width: 680px;
  margin-bottom: 30px;
}

.teaching-subheading h3 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}

.class-list {
  border-top: 1px solid rgba(255, 255, 255, 0.22);
}

.class-item {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
  gap: 42px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}

.class-item h4 {
  margin: 0 0 5px;
  font-size: 1.08rem;
}

.class-item p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.86rem;
}

.class-item dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
}

.class-item dl div {
  min-width: 0;
}

.class-item dt {
  margin-bottom: 3px;
  color: rgba(255, 255, 255, 0.62);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.class-item dd {
  margin: 0;
  font-size: 0.88rem;
}

.teaching-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 54px;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
}

.teaching-metrics div {
  padding: 27px 22px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.24);
}

.teaching-metrics div:first-child {
  padding-left: 0;
}

.teaching-metrics div:last-child {
  border-right: 0;
}

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

.teaching-metrics strong {
  margin-bottom: 5px;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}

.teaching-metrics span {
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.8rem;
}

.testimonial-placeholder {
  margin-top: 54px;
  padding: 28px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius-medium);
}

.testimonial-placeholder .eyebrow {
  margin-bottom: 10px;
}

.testimonial-placeholder p:last-child {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.74);
}

@media (max-width: 900px) {
  .agenda-layout,
  .class-item {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .agenda-layout {
    gap: 36px;
  }
}

@media (max-width: 640px) {
  .class-item dl,
  .teaching-metrics {
    grid-template-columns: 1fr;
  }

  .teaching-metrics div {
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.24);
  }

  .teaching-metrics div:last-child {
    border-bottom: 0;
  }
}

/* --------------------------------------------------------------------------
   Corrected requested presentation
   -------------------------------------------------------------------------- */

.hero-identity {
  margin-bottom: 24px;
}

.hero-name {
  margin: 0 0 5px;
  color: var(--color-black);
  font-size: clamp(1.35rem, 2.1vw, 1.8rem);
  font-weight: 720;
  letter-spacing: -0.035em;
  line-height: 1.15;
}

.hero-title {
  margin: 0;
  color: var(--color-blue-dark);
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 1.15vw, 0.82rem);
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.5;
  text-transform: uppercase;
}

.hero-copy h1 span {
  color: var(--color-blue);
}

.hero .button-blue-outline,
.contact-actions .button-blue-outline-dark {
  min-height: 48px;
  padding: 0 22px;
  border: 2px solid var(--color-blue);
  border-radius: 999px;
  font-weight: 700;
}

.hero .button-blue-outline {
  color: var(--color-blue-dark);
  background: rgba(30, 144, 255, 0.035);
  box-shadow: 0 10px 26px rgba(30, 144, 255, 0.1);
}

.hero .button-blue-outline:hover,
.hero .button-blue-outline:focus-visible,
.contact-actions .button-blue-outline-dark:hover,
.contact-actions .button-blue-outline-dark:focus-visible {
  color: var(--color-white);
  background: var(--color-blue);
  border-color: var(--color-blue);
}

.contact-actions .button-blue-outline-dark {
  color: var(--color-blue-light);
  background: transparent;
}

#technologies .project-card-featured {
  background: #000;
}

/* Teaching presentation */
.teaching-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  gap: 88px;
  align-items: end;
}

.teaching-copy {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.05rem;
}

.teaching-copy p {
  margin-bottom: 0;
}

.teaching-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 54px;
  border: 0;
}

.teaching-metrics article {
  min-height: 168px;
  padding: 25px;
  background: rgba(255, 255, 255, 0.11);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius-medium);
  backdrop-filter: blur(8px);
}

.teaching-metrics strong,
.teaching-metrics span,
.teaching-metrics small {
  display: block;
}

.teaching-metrics strong {
  margin-bottom: 18px;
  font-size: 2.4rem;
  line-height: 1;
}

.teaching-metrics span {
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 700;
}

.teaching-metrics small {
  margin-top: 5px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.72rem;
}

.teaching-subsection {
  margin-top: 72px;
  padding-top: 0;
  border-top: 0;
}

.teaching-subheading {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  max-width: none;
  margin-bottom: 28px;
}

.teaching-subheading .eyebrow {
  margin-bottom: 8px;
}

.teaching-subheading h3 {
  margin-bottom: 0;
}

.class-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.class-card {
  display: flex;
  flex-direction: column;
  min-height: 270px;
  padding: 26px;
  color: var(--color-black);
  background: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: var(--radius-medium);
  box-shadow: 0 16px 42px rgba(0, 67, 134, 0.16);
}

.class-topic {
  color: var(--color-blue-dark);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.class-card h4 {
  margin: 32px 0 28px;
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.14;
  letter-spacing: -0.035em;
}

.class-client {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--color-gray-200);
}

.class-client span,
.class-client small {
  display: block;
}

.class-client span {
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.35;
}

.class-client small {
  margin-bottom: 4px;
  color: var(--color-gray-500);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.testimonial-panel {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: center;
  margin-top: 16px;
  padding: 34px;
  background: rgba(5, 7, 10, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-medium);
}

.testimonial-panel .eyebrow {
  margin-bottom: 8px;
}

.testimonial-panel h3,
.testimonial-panel p {
  margin-bottom: 0;
}

.testimonial-panel h3 {
  font-size: 1.65rem;
}

.testimonial-panel > p {
  color: rgba(255, 255, 255, 0.72);
}

@media (max-width: 980px) {
  .teaching-layout,
  .testimonial-panel {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

@media (max-width: 700px) {
  .teaching-metrics,
  .class-grid {
    grid-template-columns: 1fr;
  }

  .teaching-metrics article {
    min-height: 0;
  }
}

/* --------------------------------------------------------------------------
   Hero refinements: identity, accent headline, and floating portrait
   -------------------------------------------------------------------------- */
.hero-copy h1 > span {
  display: block;
}

.hero-headline-accent {
  color: var(--color-blue);
}

.hero-meta {
  display: block;
}

.hero-identity {
  margin-bottom: 20px;
}

.hero-identity strong {
  margin-bottom: 3px;
  font-size: 1.3rem;
}

.hero-identity span {
  display: block;
  color: var(--color-gray-700);
  font-size: 1rem;
}

.hero-roles {
  display: flex;
  gap: 36px;
}

.hero-roles > span {
  min-width: 0;
}

.portrait-stage {
  display: grid;
  place-items: center;
  min-height: 540px;
  padding: clamp(48px, 6vw, 86px);
  overflow: hidden;
  background: rgba(248, 251, 255, 0.72);
}

.portrait-orbits {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(88%, 520px);
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.orbit {
  position: absolute;
  inset: 6%;
  border: 1px solid rgba(30, 144, 255, 0.28);
  border-radius: 50%;
}

.orbit-two {
  inset: 0;
  border-style: dashed;
  border-color: rgba(30, 144, 255, 0.19);
}

.orbit-node {
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--color-blue);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(30, 144, 255, 0.08);
}

.orbit-node-one {
  top: -1px;
  left: 49%;
}

.orbit-node-two {
  top: 51%;
  right: -1px;
}

.orbit-node-three {
  bottom: 12%;
  left: 11%;
}

.portrait-frame {
  z-index: 1;
  width: min(100%, 360px);
  height: auto;
  aspect-ratio: 0.76;
  border: 1px solid rgba(5, 7, 10, 0.08);
  border-radius: 28px;
  box-shadow: 0 30px 70px rgba(5, 7, 10, 0.16);
}

.portrait-frame::after {
  display: none;
}

.portrait {
  object-position: center 22%;
  filter: saturate(0.9) contrast(1.01);
}

@media (max-width: 980px) {
  .portrait-stage {
    min-height: 560px;
    padding: 68px;
  }

  .portrait-frame {
    width: min(68vw, 370px);
  }
}

@media (max-width: 720px) {
  .hero-roles {
    flex-direction: column;
    gap: 15px;
  }

  .portrait-stage {
    min-height: 450px;
    padding: 54px 34px;
  }

  .portrait-frame {
    width: min(78vw, 330px);
    border-radius: 22px;
  }

  .portrait-orbits {
    width: min(94%, 430px);
  }
}

/* --------------------------------------------------------------------------
   Final targeted corrections: hero scale/color and white DANS card
   -------------------------------------------------------------------------- */
.hero-copy h1 {
  font-size: clamp(2rem, 3.1vw, 3.35rem);
}

.hero-copy h1 > span:first-child {
  color: var(--color-black);
}

.hero-copy h1 > .hero-headline-accent {
  color: var(--color-blue);
}

#technologies .project-card-featured {
  color: inherit;
  background: var(--color-white);
  border-color: rgba(5, 7, 10, 0.08);
}

#technologies .project-card-featured p,
#technologies .project-card-featured .project-status,
#technologies .project-card-featured .project-footer {
  color: var(--color-text-muted);
}

#technologies .project-card-featured .project-type {
  color: var(--color-blue-dark);
}

/* --------------------------------------------------------------------------
   About research process
   -------------------------------------------------------------------------- */

.research-process {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 14px;
  align-items: stretch;
  margin-top: 74px;
}

.process-step {
  position: relative;
  min-width: 0;
  padding: 26px 24px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  transition:
    transform var(--transition-standard),
    border-color var(--transition-standard),
    box-shadow var(--transition-standard);
}

.process-step:hover {
  transform: translateY(-4px);
  border-color: rgba(30, 144, 255, 0.34);
  box-shadow: 0 18px 44px rgba(5, 7, 10, 0.08);
}

.process-index {
  display: block;
  margin-bottom: 24px;
  color: var(--color-blue-dark);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.process-step strong,
.process-domain {
  display: block;
}

.process-step strong {
  margin-bottom: 8px;
  color: var(--color-black);
  font-size: clamp(1.35rem, 2vw, 1.75rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.process-domain {
  min-height: 42px;
  color: var(--color-blue-dark);
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1.35;
}

.process-step p {
  margin: 24px 0 0;
  padding-top: 18px;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  line-height: 1.45;
}

.process-connector {
  display: grid;
  place-items: center;
  align-self: center;
  width: 22px;
  color: var(--color-blue);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
}

@media (max-width: 980px) {
  .research-process {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .process-step {
    padding: 25px;
  }

  .process-index {
    margin-bottom: 22px;
  }

  .process-domain {
    min-height: 0;
  }

  .process-connector {
    width: auto;
    height: 22px;
    transform: rotate(90deg);
  }
}


/* --------------------------------------------------------------------------
   Artificial Systems Neuroscience
   -------------------------------------------------------------------------- */

.asn-section {
  position: relative;
  overflow: hidden;
  color: var(--color-white);
  background:
    radial-gradient(
      circle at 82% 18%,
      rgba(30, 144, 255, 0.2),
      transparent 32%
    ),
    linear-gradient(
      145deg,
      var(--color-black) 0%,
      #08111d 58%,
      #0a1a2a 100%
    );
}

.asn-section::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.32;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to bottom, black, transparent 94%);
  pointer-events: none;
}

.asn-section .shell {
  position: relative;
  z-index: 1;
}

.asn-intro {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.asn-intro .eyebrow {
  color: var(--color-blue-light);
}

.asn-intro h2 {
  margin-bottom: 14px;
}

.asn-subtitle {
  margin-bottom: 34px;
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.asn-lede {
  max-width: 780px;
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
  line-height: 1.75;
}

.asn-dialogue {
  max-width: 900px;
  margin: 72px auto 88px;
  padding: clamp(22px, 4vw, 38px);
  background: rgba(255, 255, 255, 0.055);
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: var(--radius-large);
  box-shadow: 0 28px 72px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(16px);
}

.asn-dialogue-label {
  margin-bottom: 18px;
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.asn-dialogue h3 {
  max-width: 790px;
  margin-bottom: 34px;
  color: var(--color-white);
  font-size: clamp(1.35rem, 2.2vw, 2.1rem);
  line-height: 1.18;
  letter-spacing: -0.035em;
}

.asn-dialogue-answer {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 24px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.asn-dialogue-answer > span {
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.asn-dialogue-answer p {
  max-width: 700px;
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1.05rem, 1.7vw, 1.25rem);
  line-height: 1.7;
}

.asn-directions {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.asn-direction {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr);
  gap: 30px;
  padding: 42px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.asn-direction-index {
  padding-top: 5px;
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.asn-direction-domain {
  margin-bottom: 9px;
  color: var(--color-blue-light);
  font-family: var(--font-mono);
  font-size: 0.69rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.asn-direction h3 {
  max-width: 760px;
  margin-bottom: 16px;
  color: var(--color-white);
  font-size: clamp(1.65rem, 3vw, 2.6rem);
}

.asn-direction div > p:last-child {
  max-width: 820px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.64);
  font-size: 1rem;
  line-height: 1.75;
}

.asn-closing {
  max-width: 850px;
  margin: 82px auto 0;
  padding-top: 38px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.asn-closing p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  line-height: 1.75;
}

@media (max-width: 720px) {
  .asn-dialogue {
    margin: 56px auto 64px;
    padding: 28px 22px;
    border-radius: var(--radius-medium);
  }

  .asn-dialogue-answer {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .asn-direction {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 34px 0;
  }

  .asn-direction-index {
    padding-top: 0;
  }

  .asn-closing {
    margin-top: 60px;
  }
}

/* --------------------------------------------------------------------------
   Computational technology card titles
   Keep descriptive technology names compact and on one line.
   -------------------------------------------------------------------------- */
#technologies .project-card h3 {
  margin: 48px 0 14px;
  font-size: clamp(1rem, 1.15vw, 1.15rem);
  line-height: 1.25;
  font-weight: 600;
  letter-spacing: -0.015em;
  white-space: nowrap;
}

@media (max-width: 420px) {
  #technologies .project-card h3 {
    font-size: 0.9rem;
    letter-spacing: -0.025em;
  }
}

/* --------------------------------------------------------------------------
   Computational technologies: equal columns and equal-height cards
   -------------------------------------------------------------------------- */
#technologies .project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  align-items: stretch;
}

#technologies .project-card {
  width: 100%;
  height: 100%;
  min-width: 0;
}

/* Reserve the same header space whether the status uses one or two lines. */
#technologies .project-top {
  min-height: 2.45rem;
  align-items: flex-start;
}

/* Keep all titles aligned while preserving the requested single-line treatment. */
#technologies .project-card h3 {
  display: flex;
  align-items: flex-end;
  min-height: 2.9rem;
  margin-top: 32px;
}

@media (max-width: 980px) {
  #technologies .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  #technologies .project-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  #technologies .project-card h3 {
    min-height: 0;
  }
}

/* Active Research & Development: widen only this heading block. */
#programs .section-heading {
  max-width: 1100px;
}

/* --------------------------------------------------------------------------
   data.ai
   -------------------------------------------------------------------------- */

.data-ai-section {
  position: relative;
  display: grid;
  min-height: 720px;
  overflow: hidden;
  background:
    url("../img/data-ai-collage.png") center / cover no-repeat;
}

.data-ai-collage-caption {
  position: absolute;
  top: 18px;
  left: 24px;
  z-index: 2;
  margin: 0;
  padding: 6px 9px;
  color: var(--color-gray-900);
  background: rgba(255, 255, 255, 0.88);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.data-ai-shell {
  display: grid;
  place-items: center;
}

.data-ai-card {
  width: min(100%, 1240px);
  min-height: 580px;
  display: grid;
  place-items: center;
  padding: 84px;
  background: var(--color-white);
  border: 1px solid rgba(5, 7, 10, 0.08);
  border-radius: var(--radius-large);
  box-shadow: 0 32px 80px rgba(5, 7, 10, 0.18);
}

.data-ai-heading {
  width: 100%;
  max-width: none;
  text-align: center;
}

.data-ai-logo {
  display: block;
  width: min(100%, 560px);
  height: auto;
  margin: 24px auto 0;
}

.data-ai-description {
  max-width: 850px;
  margin: 28px auto 0;
  color: var(--color-gray-700);
  font-size: 1rem;
  line-height: 1.75;
  text-align: center;
}

.data-ai-button {
  margin-top: 36px;
}

@media (max-width: 700px) {
  .data-ai-section {
    min-height: 620px;
  }

  .data-ai-card {
    min-height: 420px;
    padding: 48px 32px;
  }

  .data-ai-logo {
    width: min(100%, 420px);
  }
}