:root{
  --bg: #070A12;
  --fg: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.70);
  --subtle: rgba(255,255,255,0.10);
  --card: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.10);
  --shadow: rgba(0,0,0,0.35);

  --accentA: #8B5CF6;
  --accentB: #22C55E;
  --accentC: #06B6D4;

  --radius: 18px;
  --radius2: 26px;

  --max: 1100px;
  --pad: 20px;

  --ease: cubic-bezier(.2,.8,.2,1);
}

[data-theme="light"]{
  --bg: #F6F7FB;
  --fg: rgba(10,14,24,0.92);
  --muted: rgba(10,14,24,0.64);
  --subtle: rgba(10,14,24,0.10);
  --card: rgba(255,255,255,0.72);
  --border: rgba(10,14,24,0.10);
  --shadow: rgba(10,14,24,0.18);

  --accentA: #7C3AED;
  --accentB: #16A34A;
  --accentC: #0891B2;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--fg);
  overflow-x: hidden;
}

a{ color: inherit; text-decoration: none; }
a[aria-disabled="true"]{ pointer-events: none; opacity: .55; }
button{ font: inherit; }

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

.section{ padding: 88px 0; position: relative; }
.section__head{
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}
.h2{
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -0.03em;
  margin: 0;
}
.lead{
  margin: 0;
  max-width: 70ch;
  color: var(--muted);
  line-height: 1.6;
}

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

.bg{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(1200px 700px at 20% 10%, rgba(139,92,246,0.18), transparent 60%),
              radial-gradient(900px 600px at 80% 20%, rgba(6,182,212,0.14), transparent 55%),
              radial-gradient(900px 700px at 65% 85%, rgba(34,197,94,0.12), transparent 58%),
              var(--bg);
}

.bg__blob{
  position: absolute;
  width: 520px;
  height: 520px;
  border-radius: 999px;
  filter: blur(30px);
  opacity: .6;
  transform: translate3d(0,0,0);
}
.bg__blob--a{
  left: -160px;
  top: 120px;
  background: radial-gradient(circle at 30% 30%, rgba(139,92,246,0.85), transparent 62%);
  animation: floatA 14s var(--ease) infinite;
}
.bg__blob--b{
  right: -180px;
  top: 60px;
  background: radial-gradient(circle at 30% 30%, rgba(6,182,212,0.85), transparent 62%);
  animation: floatB 16s var(--ease) infinite;
}
.bg__grid{
  position: absolute;
  inset: 0;
  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: 84px 84px;
  mask-image: radial-gradient(700px 500px at 50% 20%, #000 0%, transparent 70%);
  opacity: .10;
}

@keyframes floatA{
  0%,100%{ transform: translate(-10px, 0px) scale(1); }
  50%{ transform: translate(30px, -24px) scale(1.04); }
}
@keyframes floatB{
  0%,100%{ transform: translate(10px, 0px) scale(1); }
  50%{ transform: translate(-28px, 18px) scale(1.05); }
}

/* Header */
.header{
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 1px solid transparent;
}
.header[data-scrolled="true"]{
  border-bottom-color: var(--border);
}
.header__inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 16px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand__mark{
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accentA), var(--accentC));
  box-shadow: 0 0 0 6px rgba(139,92,246,0.12);
}
.brand__name{ font-size: 14px; opacity: 0.95; }

.nav{
  display: flex;
  gap: 18px;
  align-items: center;
}
.nav__link{
  font-size: 14px;
  color: var(--muted);
  padding: 8px 10px;
  border-radius: 10px;
  transition: background 180ms var(--ease), color 180ms var(--ease);
}
.nav__link:hover{
  background: var(--card);
  color: var(--fg);
}

.burger{
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}
.burger span{
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--fg) 70%, transparent);
}

.mobile{
  display: none;
  border-bottom: 1px solid var(--border);
}
.mobile[data-open="true"]{ display: block; }
.mobile__inner{
  padding: 14px var(--pad) 18px;
  display: grid;
  gap: 10px;
}
.mobile__link{
  padding: 12px 12px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--border);
}
.mobile__divider{
  height: 1px;
  background: var(--border);
  margin: 6px 0;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  transition: transform 170ms var(--ease), background 170ms var(--ease), border-color 170ms var(--ease);
  cursor: pointer;
  user-select: none;
}
.btn:hover{ transform: translateY(-1px); border-color: color-mix(in srgb, var(--border) 40%, white); }
.btn--full{ width: 100%; }
.btn__arrow{ opacity: .9; }
.btn__icon{ opacity: .9; }

.btn--primary{
  border: 1px solid color-mix(in srgb, var(--accentA) 55%, var(--border));
  background: linear-gradient(135deg, color-mix(in srgb, var(--accentA) 60%, transparent), color-mix(in srgb, var(--accentC) 45%, transparent));
}
.btn--soft{
  background: linear-gradient(135deg, rgba(34,197,94,0.20), rgba(139,92,246,0.16));
}
.btn--ghost{
  background: transparent;
}

/* Hero */
.hero{ padding-top: 72px; }
.hero__grid{
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 26px;
  align-items: start;
}
.hero__title{
  font-size: clamp(36px, 5.2vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.05em;
  margin: 14px 0 10px;
}
.accent{
  background: linear-gradient(135deg, var(--accentA), var(--accentC));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__subtitle{
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  max-width: 70ch;
}
.hero__actions{
  display: flex;
  gap: 12px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.hero__meta{
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 10px;
  margin-top: 22px;
}
.meta{
  padding: 12px 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--card);
}
.meta__k{
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}
.meta__v{
  font-size: 13px;
  font-weight: 600;
}

.pill{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  color: var(--muted);
  font-size: 13px;
}
.dot{
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, var(--accentB), var(--accentC));
  box-shadow: 0 0 0 6px rgba(34,197,94,0.14);
}

.card{
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: var(--radius2);
  padding: 18px 18px;
  box-shadow: 0 18px 50px var(--shadow);
}
.card--glass{
  background: color-mix(in srgb, var(--bg) 35%, transparent);
  backdrop-filter: blur(12px);
}
.card h3{ margin: 10px 0 8px; letter-spacing: -0.02em; }
.card p{ margin: 0; color: var(--muted); line-height: 1.6; }

.card__top{
  display: flex;
  gap: 12px;
  align-items: center;
}
.card__title{ font-weight: 700; letter-spacing: -0.02em; }
.card__sub{ color: var(--muted); font-size: 13px; margin-top: 2px; }
.card__cta{ margin-top: 14px; }

.avatar{
  width: 44px;
  height: 44px;
  position: relative;
  display: grid;
  place-items: center;
}
.avatar__ring{
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: conic-gradient(from 180deg, var(--accentA), var(--accentC), var(--accentB), var(--accentA));
  filter: blur(0px);
  opacity: .95;
}
.avatar__core{
  width: 36px;
  height: 36px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.20), rgba(255,255,255,0.06));
  border: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.stack{ margin-top: 14px; display: grid; gap: 12px; }
.stack__item{
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  padding: 12px 12px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}
.stack__icon{
  width: 30px; height: 30px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--fg);
}
.stack__h{ font-weight: 700; letter-spacing: -0.02em; }
.stack__p{ color: var(--muted); font-size: 13px; margin-top: 4px; line-height: 1.5; }

.logos{
  margin-top: 26px;
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}
.logos__label{
  color: var(--muted);
  font-size: 13px;
}
.chip{
  display: inline-flex;
  align-items: center;
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  font-size: 13px;
  color: var(--muted);
}

/* Grids */
.grid{
  display: grid;
  gap: 14px;
}
.grid--3{ grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid--2{ grid-template-columns: repeat(2, minmax(0,1fr)); }

.tag{
  display: inline-flex;
  width: fit-content;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--muted);
  font-size: 12px;
}

.bullets{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}
.bullets li{ margin: 6px 0; }

/* Projects */
.proj{
  border: 1px solid var(--border);
  border-radius: var(--radius2);
  padding: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.03));
  box-shadow: 0 18px 60px var(--shadow);
  position: relative;
  overflow: hidden;
}
.proj::before{
  content:"";
  position: absolute;
  inset: -120px;
  background: radial-gradient(circle at 20% 20%, rgba(139,92,246,0.20), transparent 45%),
              radial-gradient(circle at 80% 30%, rgba(6,182,212,0.18), transparent 50%),
              radial-gradient(circle at 30% 85%, rgba(34,197,94,0.15), transparent 50%);
  opacity: .75;
  filter: blur(18px);
  pointer-events: none;
}
.proj > *{ position: relative; }

.proj__top{
  display: flex;
  gap: 14px;
  justify-content: space-between;
  align-items: flex-start;
}
.proj__title{
  margin: 0;
  letter-spacing: -0.03em;
}
.proj__desc{
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
  max-width: 55ch;
}
.proj__badges{ display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.badge{
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  font-size: 12px;
  color: var(--muted);
}
.proj__body{ margin-top: 14px; display: grid; gap: 14px; }
.kpis{
  display: grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 10px;
}
.kpi{
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 12px;
  background: rgba(255,255,255,0.03);
}
.kpi__k{ font-size: 12px; color: var(--muted); }
.kpi__v{ margin-top: 4px; font-weight: 700; letter-spacing: -0.02em; }

.link{
  color: color-mix(in srgb, var(--accentC) 60%, var(--fg));
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
}
.link:hover{ text-decoration: underline; }

.proj__links{ display: flex; gap: 14px; flex-wrap: wrap; }

/* About */
.about{
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}
.about__chips{ margin-top: 12px; display: flex; gap: 10px; flex-wrap: wrap; }

.timeline{ margin-top: 12px; display: grid; gap: 12px; }
.timeline__row{
  display: grid;
  grid-template-columns: 16px 1fr;
  gap: 10px;
  align-items: start;
}
.timeline__dot{
  width: 10px; height: 10px; margin-top: 5px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accentA), var(--accentC));
  box-shadow: 0 0 0 6px rgba(139,92,246,0.12);
}
.timeline__h{ font-weight: 700; letter-spacing: -0.02em; }
.timeline__p{ margin-top: 4px; color: var(--muted); font-size: 13px; line-height: 1.55; }

.skillgrid{
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 10px;
}
.skill{
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 12px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
}
.skill span:first-child{ font-weight: 700; }
.skill .muted{ font-size: 13px; }

/* CTA + Footer */
.cta{
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 14px;
  align-items: start;
  padding: 22px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(139,92,246,0.18), rgba(6,182,212,0.14), rgba(34,197,94,0.14));
  box-shadow: 0 24px 70px var(--shadow);
}
.cta__actions{ display: grid; gap: 10px; }

.footer{
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* Reveal animations */
.reveal{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .hero__meta{ grid-template-columns: 1fr; }
  .grid--3{ grid-template-columns: 1fr; }
  .grid--2{ grid-template-columns: 1fr; }
  .about{ grid-template-columns: 1fr; }
  .cta{ grid-template-columns: 1fr; }
  .nav{ display: none; }
  .burger{ display: inline-flex; }
  .header__cta{ display: none; }
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ transition: none; }
  .bg__blob{ animation: none; }
  .btn{ transition: none; }
}