/* ---- Base / Theme ---- */
:root{
  --bg: #070910;
  --panel: rgba(255,255,255,0.06);
  --panel2: rgba(255,255,255,0.08);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --faint: rgba(255,255,255,0.50);
  --line: rgba(255,255,255,0.12);

  --shadow: 0 24px 80px rgba(0,0,0,0.45);
  --shadow2: 0 14px 40px rgba(0,0,0,0.35);

  --radius: 18px;
  --radius2: 24px;

  --container: 1060px;
  --padx: 20px;

  --grad1: #7c3aed;
  --grad2: #22c55e;
  --grad3: #06b6d4;

  color-scheme: dark;
}

:root[data-theme="light"]{
  --bg: #f6f7fb;
  --panel: rgba(0,0,0,0.04);
  --panel2: rgba(0,0,0,0.06);
  --text: rgba(10,12,18,0.92);
  --muted: rgba(10,12,18,0.66);
  --faint: rgba(10,12,18,0.52);
  --line: rgba(10,12,18,0.10);

  --shadow: 0 18px 55px rgba(0,0,0,0.12);
  --shadow2: 0 10px 26px rgba(0,0,0,0.10);

  color-scheme: light;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  letter-spacing: -0.01em;
}

a{ color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible{
  outline: 2px solid rgba(255,255,255,0.35);
  outline-offset: 3px;
  border-radius: 10px;
}

/* ---- Ambient background ---- */
.bg{
  position: fixed;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: -1;
}

.bg__grid{
  position:absolute;
  inset:-2px;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 10%, black 0%, transparent 68%);
  opacity: 0.50;
}

:root[data-theme="light"] .bg__grid{
  background-image:
    linear-gradient(to right, rgba(10,12,18,0.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,12,18,0.08) 1px, transparent 1px);
  opacity: 0.35;
}

.bg__blob{
  position:absolute;
  width: 720px;
  height: 720px;
  filter: blur(45px);
  opacity: 0.45;
  border-radius: 999px;
  transform: translate3d(0,0,0);
}
.bg__blob--a{
  left: -220px;
  top: -260px;
  background: radial-gradient(circle at 30% 30%, var(--grad3), transparent 60%),
              radial-gradient(circle at 70% 70%, var(--grad1), transparent 55%);
  animation: floatA 14s ease-in-out infinite;
}
.bg__blob--b{
  right: -260px;
  bottom: -320px;
  background: radial-gradient(circle at 30% 30%, var(--grad2), transparent 60%),
              radial-gradient(circle at 70% 70%, var(--grad3), transparent 55%);
  animation: floatB 18s ease-in-out infinite;
}

.bg__vignette{
  position:absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 15%, transparent 0%, rgba(0,0,0,0.35) 65%, rgba(0,0,0,0.60) 100%);
  opacity: 0.75;
}
:root[data-theme="light"] .bg__vignette{
  background: radial-gradient(ellipse at 50% 15%, transparent 0%, rgba(0,0,0,0.08) 65%, rgba(0,0,0,0.10) 100%);
  opacity: 1;
}

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

@keyframes floatA{
  0%,100%{ transform: translate(-10px, 0px) scale(1); }
  50%{ transform: translate(30px, 20px) scale(1.05); }
}
@keyframes floatB{
  0%,100%{ transform: translate(0px, 0px) scale(1); }
  50%{ transform: translate(-26px, -18px) scale(1.06); }
}

/* ---- Layout ---- */
.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 96px var(--padx) 60px;
}

.section{
  margin-top: 56px;
  padding-top: 18px;
}

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

.section__title{
  font-size: 22px;
  margin: 0;
  letter-spacing: -0.02em;
}

.section__desc{
  margin: 0;
  color: var(--muted);
  max-width: 64ch;
}

/* ---- Topbar ---- */
.topbar{
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in oklab, var(--bg) 84%, transparent);
  padding: 14px var(--padx);
  display:flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 600;
}
.brand__dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--grad1), var(--grad3));
  box-shadow: 0 0 0 6px rgba(255,255,255,0.05);
}
.brand__text{ opacity: 0.95; }

.nav{
  display:flex;
  gap: 16px;
}
.nav__link{
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
}
.nav__link:hover{
  color: var(--text);
  background: var(--panel);
}

.topbar__actions{
  display:flex;
  align-items:center;
  gap: 10px;
}

.iconbtn{
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  border-radius: 12px;
  height: 40px;
  width: 40px;
  display:grid;
  place-items:center;
  cursor: pointer;
  box-shadow: var(--shadow2);
}
.iconbtn:hover{ transform: translateY(-1px); }
.iconbtn:active{ transform: translateY(0px); }
.iconbtn__sun{ display:none; }
:root[data-theme="light"] .iconbtn__sun{ display:block; }
:root[data-theme="light"] .iconbtn__moon{ display:none; }

/* ---- Hero ---- */
.hero{
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  align-items: start;
  margin-top: 10px;
}

.kicker{
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.headline{
  margin: 0 0 10px;
  font-size: clamp(36px, 4.2vw, 54px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.grad{
  background: linear-gradient(135deg, var(--grad2), var(--grad3), var(--grad1));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.subhead{
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  max-width: 62ch;
}

.cta{
  display:flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
}

.pill{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 14px;
  font-size: 14px;
  background: var(--panel);
  box-shadow: var(--shadow2);
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}
.pill:hover{ transform: translateY(-1px); background: var(--panel2); }
.pill:active{ transform: translateY(0px); }

.pill--primary{
  border: 1px solid color-mix(in oklab, var(--grad3) 55%, var(--line));
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--grad3) 36%, transparent),
    color-mix(in oklab, var(--grad1) 28%, transparent)
  );
}
.pill--ghost{
  background: transparent;
}

.pill--wide{
  width: 100%;
  max-width: 360px;
  padding: 12px 16px;
}

.chips{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
  margin-top: 10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: color-mix(in oklab, var(--panel) 70%, transparent);
  color: var(--muted);
  font-size: 13px;
}
.chip__dot{
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--grad2), var(--grad3));
}

/* ---- Panel ---- */
.panel{
  border: 1px solid var(--line);
  border-radius: var(--radius2);
  background: color-mix(in oklab, var(--panel) 78%, transparent);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.panel__top{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 16px 16px 10px;
}
.panel__title{
  font-weight: 600;
  letter-spacing: -0.01em;
}
.panel__badge{
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  background: color-mix(in oklab, var(--panel2) 70%, transparent);
}

.panel__divider{
  height: 1px;
  background: var(--line);
  margin: 8px 0;
}

.stats{
  display:grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 0 16px 10px;
}
.stat{
  display:flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.stat__label{
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}
.stat__value{
  font-weight: 600;
  letter-spacing: -0.01em;
}

.list{
  padding: 6px 16px 16px;
  display:flex;
  flex-direction: column;
  gap: 10px;
}
.list__row{
  display:flex;
  justify-content: space-between;
  gap: 12px;
}
.list__left{
  width: 76px;
  color: var(--muted);
  font-size: 13px;
}
.list__right{
  flex: 1;
  text-align: right;
  color: var(--text);
  font-size: 13px;
}

.ticker{
  margin-top: 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 10px 12px;
  display:flex;
  align-items:center;
  gap: 10px;
  background: color-mix(in oklab, var(--panel) 70%, transparent);
}
.ticker__dot{
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--grad2);
  box-shadow: 0 0 0 6px rgba(34,197,94,0.10);
}
.ticker__text{
  color: var(--muted);
  font-size: 13px;
}

/* ---- Cards ---- */
.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.card{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  background: color-mix(in oklab, var(--panel) 78%, transparent);
  box-shadow: var(--shadow2);
}
.card__title{
  margin: 0 0 8px;
  font-size: 16px;
  letter-spacing: -0.02em;
}
.card__text{
  margin: 0;
  color: var(--muted);
}
.card__meta{
  margin-top: 10px;
  color: var(--faint);
  font-size: 13px;
}

.cards--projects{
  grid-template-columns: repeat(3, 1fr);
}
.card--project .card__top{
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}
.tag{
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  background: color-mix(in oklab, var(--panel2) 70%, transparent);
}

/* ---- Timeline ---- */
.timeline{
  display:flex;
  flex-direction: column;
  gap: 14px;
}
.titem{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in oklab, var(--panel) 78%, transparent);
  box-shadow: var(--shadow2);
  padding: 16px;
}
.titem__meta{
  display:grid;
  gap: 2px;
  margin-bottom: 10px;
}
.titem__role{
  font-weight: 600;
  letter-spacing: -0.01em;
}
.titem__org{
  color: var(--muted);
}
.titem__time{
  color: var(--faint);
  font-size: 13px;
}
.titem__bullets{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}
.titem__bullets li{ margin: 6px 0; }

/* ---- Contact ---- */
.section--contact{
  margin-top: 62px;
}
.contact{
  border: 1px solid var(--line);
  border-radius: var(--radius2);
  padding: 18px;
  background: color-mix(in oklab, var(--panel) 78%, transparent);
  box-shadow: var(--shadow);
  display:grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
  align-items: center;
}

/* ---- Footer ---- */
.footer{
  margin-top: 56px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display:flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
}
.footer__link{
  color: var(--muted);
}
.footer__link:hover{ color: var(--text); }

/* ---- Responsive ---- */
@media (max-width: 900px){
  .nav{ display:none; }
  .hero{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .cards--projects{ grid-template-columns: 1fr; }
  .contact{ grid-template-columns: 1fr; }
  .container{ padding-top: 78px; }
}