/* ailiteworld.com — static profile page.
   Palette sampled from the AI Lite World mark: #080C18 ground, #5B7CFA → #96ABFC → #FFFFFF. */

:root {
  --ground:    #080C18;
  --ground-2:  #0C1122;
  --surface:   #10162B;
  --line:      #1E2846;
  --line-soft: #161E36;

  --text:      #E6EAF6;
  --text-mid:  #A6B0CC;
  --text-dim:  #6E7A9B;

  --accent:    #7C97FD;
  --accent-2:  #5B7CFA;
  --accent-dim:#96ABFC;

  --measure:   72ch;
  --wrap:      880px;
  --ease:      cubic-bezier(.2,.7,.3,1);

  color-scheme: dark;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
  margin: 0;
  background: var(--ground);
  color: var(--text);
  font: 400 16px/1.65 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Inter,
        Roboto, "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "kern" 1, "liga" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; }

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: 24px;
}

.skip {
  position: absolute;
  inset-inline-start: -9999px;
  top: 0;
  padding: 10px 16px;
  background: var(--accent-2);
  color: #050810;
  font-weight: 600;
  border-radius: 0 0 8px 0;
  z-index: 10;
}
.skip:focus { inset-inline-start: 0; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- ambient glow ---------- */

.glow {
  position: fixed;
  top: -30vh;
  left: 50%;
  width: min(1100px, 130vw);
  aspect-ratio: 1;
  transform: translateX(-50%);
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(circle at 50% 50%,
      rgba(91,124,250,.20) 0%,
      rgba(91,124,250,.09) 32%,
      rgba(91,124,250,0)   66%);
}
body::after {
  /* faint grid, keeps large dark areas from reading as flat */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right,  rgba(150,171,252,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(150,171,252,.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 80% 55% at 50% 0%, #000 0%, transparent 78%);
}

.hero, main, footer { position: relative; z-index: 1; }

/* ---------- hero ---------- */

.hero { padding-block: clamp(52px, 10vw, 92px) clamp(24px, 4vw, 40px); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  padding: 6px 14px 6px 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(16,22,43,.6);
  backdrop-filter: blur(6px);
  margin-bottom: clamp(28px, 5vw, 44px);
}
.brand-mark { display: block; border-radius: 50%; }
.brand-name {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: .11em;
  text-transform: uppercase;
  color: var(--text-mid);
}

.name {
  margin: 0;
  font-size: clamp(2.4rem, 7.5vw, 4.1rem);
  line-height: 1.04;
  letter-spacing: -.032em;
  font-weight: 650;
  background: linear-gradient(170deg, #FFFFFF 20%, var(--accent-dim) 130%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.role {
  margin: 14px 0 0;
  font-size: clamp(1rem, 2.4vw, 1.16rem);
  font-weight: 500;
  letter-spacing: .005em;
  color: var(--accent-dim);
}

.lede {
  margin: 22px 0 0;
  max-width: 60ch;
  font-size: clamp(1rem, 2.1vw, 1.075rem);
  color: var(--text-mid);
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(26px, 4vw, 36px);
}
.links a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 17px;
  font-size: 14.5px;
  font-weight: 500;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  transition: border-color .22s var(--ease), background .22s var(--ease),
              transform .22s var(--ease);
}
.links a:hover {
  border-color: var(--accent-2);
  background: #141C36;
  transform: translateY(-1px);
}
.links svg { opacity: .85; }

/* ---------- sections ---------- */

.section { padding-block: clamp(38px, 6vw, 60px); }

.section-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: clamp(24px, 4vw, 34px);
}
.section-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
}
.rule {
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(to right, var(--line) 0%, var(--line-soft) 70%, transparent 100%);
}
.count {
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .08em;
  color: var(--text-dim);
}

/* ---------- projects ---------- */

.projects { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }

.project {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px;
  padding: 24px clamp(20px, 3vw, 28px);
  text-decoration: none;
  border: 1px solid var(--line-soft);
  border-radius: 14px;
  background:
    linear-gradient(180deg, rgba(22,30,54,.55) 0%, rgba(12,17,34,.55) 100%);
  transition: border-color .25s var(--ease), transform .25s var(--ease),
              box-shadow .25s var(--ease);
}
.project:hover {
  border-color: #2C3C6B;
  transform: translateY(-2px);
  box-shadow: 0 14px 40px -22px rgba(91,124,250,.75);
}

.project-index {
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .1em;
  color: var(--accent-2);
  padding-top: 5px;
}

.project-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.22rem;
  font-weight: 600;
  letter-spacing: -.012em;
  color: var(--text);
}
.arrow {
  opacity: .5;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}
.project:hover .arrow { opacity: 1; transform: translate(2px, -2px); color: var(--accent); }

.project-desc {
  display: block;
  margin-top: 9px;
  max-width: 58ch;
  font-size: .955rem;
  color: var(--text-mid);
}

.tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 16px; }
.tags span {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .04em;
  padding: 4px 10px;
  border-radius: 999px;
  color: var(--accent-dim);
  background: rgba(91,124,250,.11);
  border: 1px solid rgba(91,124,250,.2);
}

/* ---------- publications ---------- */

.pubs { list-style: none; margin: 0; padding: 0; }

.pubs > li {
  display: grid;
  grid-template-columns: 62px 1fr;
  gap: 20px;
  padding-block: 22px;
  border-top: 1px solid var(--line-soft);
}
.pubs > li:last-child { border-bottom: 1px solid var(--line-soft); }

.year {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  letter-spacing: .04em;
  color: var(--text-dim);
  padding-top: 3px;
}

.pub-title {
  display: inline-block;
  font-size: 1.03rem;
  font-weight: 550;
  line-height: 1.4;
  letter-spacing: -.008em;
  color: var(--text);
  text-decoration: none;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-repeat: no-repeat;
  background-size: 0% 1px;
  background-position: 0 100%;
  transition: background-size .3s var(--ease), color .2s var(--ease);
}
.pub-title:hover { color: #FFFFFF; background-size: 100% 1px; }

.authors {
  margin: 7px 0 0;
  font-size: .9rem;
  color: var(--text-mid);
}
.venue {
  margin: 4px 0 0;
  font-size: .86rem;
  color: var(--text-dim);
}
.venue-name {
  display: inline-block;
  margin-inline-end: 8px;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 11.5px;
  font-weight: 600;
  letter-spacing: .05em;
  color: var(--accent-dim);
  background: rgba(91,124,250,.1);
  border: 1px solid rgba(91,124,250,.18);
}

/* ---------- footer ---------- */

footer {
  padding-block: 28px 40px;
  border-top: 1px solid var(--line-soft);
  margin-top: clamp(24px, 4vw, 40px);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: .86rem;
  color: var(--text-dim);
}
footer p { margin: 0; }
footer .muted { letter-spacing: .05em; }

/* ---------- narrow screens ---------- */

@media (max-width: 560px) {
  .project { grid-template-columns: 1fr; gap: 0; }
  .project-index { padding-top: 0; margin-bottom: 10px; display: block; }
  .pubs > li { grid-template-columns: 1fr; gap: 0; }
  .year { padding-top: 0; margin-bottom: 8px; display: block; }
}

/* ---------- print ---------- */

@media print {
  .glow, .skip, body::after { display: none; }
  body { background: #fff; color: #111; }
  .name { color: #111; -webkit-text-fill-color: #111; }
  a { color: #111; }
}