/* ===== Base ===== */
:root{
  --bg: #0b1220;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.08);
  --text: rgba(255,255,255,.90);
  --muted: rgba(255,255,255,.70);
  --muted2: rgba(255,255,255,.55);
  --line: rgba(255,255,255,.12);
  --accent: #64ffda;
  --accent2: #7aa7ff;
  --shadow: 0 18px 45px rgba(0,0,0,.35);
  --radius: 16px;

  --container: 1120px;
  --pad: 20px;

  --t: 180ms;
  --t2: 260ms;
}

*{ 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: radial-gradient(1200px 800px at 20% 0%, rgba(122,167,255,.20), transparent 60%),
              radial-gradient(900px 600px at 90% 10%, rgba(100,255,218,.14), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a{ color: inherit; text-decoration: none; }
strong{ font-weight: 700; }
.container{
  width: min(var(--container), 100% - (var(--pad) * 2));
  margin: 0 auto;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 10px;
  background: #fff;
  color: #000;
  padding: 10px 12px;
  border-radius: 10px;
  z-index: 9999;
}
.skip-link:focus{ left: 12px; }

.section{
  padding: 92px 0;
  position: relative;
}
.section__head{
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
}
.section__title{
  font-size: clamp(1.55rem, 1.2rem + 1vw, 2.1rem);
  letter-spacing: -0.02em;
  margin: 0;
}
.section__desc{
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

/* ===== Background blobs ===== */
.bg-blob{
  position: fixed;
  width: 520px;
  height: 520px;
  filter: blur(52px);
  opacity: .22;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  transform: translate3d(0,0,0);
}
.bg-blob--a{
  top: -160px;
  left: -160px;
  background: radial-gradient(circle at 30% 30%, var(--accent2), transparent 55%);
}
.bg-blob--b{
  bottom: -180px;
  right: -180px;
  background: radial-gradient(circle at 30% 30%, var(--accent), transparent 55%);
}

/* ===== Header / Nav ===== */
.header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11,18,32,.65);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
}

.brand{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.brand__mark{
  width: 14px;
  height: 14px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 10px 24px rgba(100,255,218,.25);
}
.brand__text{ color: rgba(255,255,255,.92); }

.nav__links{
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav__link{
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--muted);
  transition: transform var(--t2) ease, background var(--t2) ease, color var(--t2) ease;
}
.nav__link:hover{
  color: rgba(255,255,255,.92);
  background: rgba(255,255,255,.06);
  transform: translateY(-1px);
}
.nav__link.is-active{
  color: rgba(255,255,255,.95);
  background: rgba(255,255,255,.09);
  border: 1px solid rgba(255,255,255,.10);
}

.nav__cta{
  margin-left: 6px;
  padding: 10px 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(100,255,218,.16), rgba(122,167,255,.14));
  border: 1px solid rgba(255,255,255,.12);
  transition: transform var(--t2) ease, background var(--t2) ease, border-color var(--t2) ease;
}
.nav__cta:hover{
  transform: translateY(-1px);
  border-color: rgba(255,255,255,.20);
}

/* Mobile menu */
.nav__toggle{
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  cursor: pointer;
}
.nav__bar{
  display: block;
  width: 18px;
  height: 2px;
  background: rgba(255,255,255,.85);
  margin: 4px auto;
  border-radius: 10px;
  transition: transform var(--t2) ease, opacity var(--t2) ease;
}

@media (max-width: 860px){
  .nav__toggle{ display: inline-grid; place-items: center; }
  .nav__links{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 64px;
    width: min(720px, calc(100% - 24px));
    background: rgba(11,18,32,.92);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: 18px;
    padding: 10px;
    box-shadow: var(--shadow);
    display: grid;
    gap: 6px;
    opacity: 0;
    pointer-events: none;
    translate: 0 -8px;
    transition: opacity var(--t2) ease, translate var(--t2) ease;
  }
  .nav__links.is-open{
    opacity: 1;
    pointer-events: auto;
    translate: 0 0;
  }
  .nav__cta{ margin-left: 0; text-align: center; }
}

/* ===== Hero ===== */
.hero{ padding-top: 64px; }
.hero__grid{
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
  align-items: start;
}
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
}

.pill{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  width: fit-content;
}

.hero__title{
  margin: 14px 0 10px;
  font-size: clamp(2rem, 1.2rem + 2.2vw, 3.1rem);
  letter-spacing: -0.04em;
  line-height: 1.12;
}
.hero__subtitle{
  display: block;
  margin-top: 8px;
  color: rgba(255,255,255,.78);
  font-weight: 600;
  font-size: clamp(1.05rem, .9rem + .6vw, 1.35rem);
}
.hero__summary{
  margin: 0;
  color: var(--muted);
  max-width: 68ch;
}
.hero__actions{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  cursor: pointer;
  transition: transform var(--t2) ease, background var(--t2) ease, border-color var(--t2) ease;
  user-select: none;
  font-weight: 600;
}
.btn:hover{ transform: translateY(-1px); border-color: rgba(255,255,255,.22); }
.btn--primary{
  background: linear-gradient(135deg, rgba(100,255,218,.18), rgba(122,167,255,.16));
}
.btn--ghost{
  background: rgba(255,255,255,.06);
}

.hero__meta{
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}
.meta{
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
}
.meta__k{ color: var(--muted2); font-size: .92rem; }
.meta__v{ color: rgba(255,255,255,.88); }

.link{
  color: rgba(255,255,255,.88);
  text-decoration: underline;
  text-decoration-color: rgba(255,255,255,.25);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--t) ease, color var(--t) ease;
}
.link:hover{
  color: rgba(255,255,255,.96);
  text-decoration-color: rgba(100,255,218,.55);
}

.hero__card .card{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card__header{
  padding: 18px 18px 10px;
  border-bottom: 1px solid rgba(255,255,255,.10);
  background: linear-gradient(135deg, rgba(100,255,218,.10), rgba(122,167,255,.08));
}
.card__title{ margin: 0; font-size: 1.05rem; }
.card__subtitle{ margin: 4px 0 0; color: var(--muted); font-size: .95rem; }
.card__footer{ padding: 12px 18px 16px; }

.checklist{
  margin: 0;
  padding: 14px 18px 0 38px;
  color: var(--muted);
  display: grid;
  gap: 10px;
}
.mini-link{
  color: rgba(255,255,255,.90);
  text-decoration: underline;
  text-decoration-color: rgba(255,255,255,.25);
  text-underline-offset: 3px;
}
.mini-link:hover{ text-decoration-color: rgba(122,167,255,.55); }

/* ===== Panels / Skills ===== */
.skills__grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 980px){
  .skills__grid{ grid-template-columns: 1fr; }
}

.panel{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.panel__title{
  margin: 0 0 12px;
  font-size: 1.05rem;
}
.panel__note{
  margin: 12px 0 0;
  color: var(--muted2);
  font-size: .92rem;
}

.chips{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.86);
  font-size: .92rem;
  transition: transform var(--t2) ease, border-color var(--t2) ease, background var(--t2) ease;
}
.chip:hover{
  transform: translateY(-1px);
  border-color: rgba(255,255,255,.22);
  background: rgba(255,255,255,.07);
}
.chip--soft{
  background: rgba(100,255,218,.08);
  border-color: rgba(100,255,218,.18);
}

.bars{ display: grid; gap: 12px; }
.bar__top{
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(255,255,255,.84);
  font-size: .95rem;
}
.bar__pct{ color: var(--muted2); }
.bar__track{
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.10);
  overflow: hidden;
}
.bar__fill{
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(100,255,218,.75), rgba(122,167,255,.75));
  transition: width 900ms cubic-bezier(.2,.8,.2,1);
}
.bar.is-visible .bar__fill{ width: var(--w); }

/* ===== Timeline / Experience ===== */
.timeline{
  display: grid;
  gap: 18px;
}
.tcard{
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 14px;
  align-items: stretch;
}
.tcard__side{
  display: grid;
  grid-template-rows: 14px 1fr;
  justify-items: center;
  padding-top: 8px;
}
.dot{
  width: 12px;
  height: 12px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 12px 24px rgba(100,255,218,.18);
}
.line{
  width: 2px;
  background: rgba(255,255,255,.12);
  border-radius: 999px;
  margin-top: 10px;
}

.tcard__main{
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}
.tcard__head{ display: grid; gap: 6px; }
.tcard__title{ margin: 0; font-size: 1.1rem; }
.tcard__meta{
  margin: 0;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.tag{
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
}
.sep{ opacity: .6; }
.tcard__date{
  margin: 0;
  color: var(--muted2);
  font-size: .95rem;
}

.bullets{
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 10px;
}
.bullets--compact{ gap: 8px; }

.projects{
  margin-top: 14px;
  border-top: 1px solid rgba(255,255,255,.10);
  padding-top: 12px;
}
.projects summary{
  cursor: pointer;
  color: rgba(255,255,255,.86);
  font-weight: 600;
  list-style: none;
}
.projects summary::-webkit-details-marker{ display: none; }
.projects summary::after{
  content: " +";
  color: var(--muted2);
}
.projects[open] summary::after{ content: " –"; }

/* ===== Contact ===== */
.contact__grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 980px){
  .contact__grid{ grid-template-columns: 1fr; }
}

.contact-list{
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}
.contact-list li{
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
}
.contact-list__k{
  color: var(--muted2);
  font-size: .92rem;
}

.mini{ margin-top: 14px; }
.mini__title{ margin: 0 0 10px; color: rgba(255,255,255,.86); font-weight: 600; }

.form{
  display: grid;
  gap: 12px;
}
.field{ display: grid; gap: 6px; }
label{ color: rgba(255,255,255,.84); font-weight: 600; font-size: .92rem; }
input, textarea{
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.90);
  outline: none;
  transition: border-color var(--t2) ease, background var(--t2) ease, transform var(--t2) ease;
}
input:focus, textarea:focus{
  border-color: rgba(100,255,218,.35);
  background: rgba(255,255,255,.06);
}
textarea{ resize: vertical; }

.form__hint{
  min-height: 20px;
  margin: 0;
  color: rgba(100,255,218,.88);
  font-weight: 600;
}
.form__fineprint{
  margin: 0;
  color: var(--muted2);
  font-size: .92rem;
}

/* ===== Footer ===== */
.footer{
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 18px 0;
  color: var(--muted2);
}
.footer__row{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== Scroll reveal ===== */
.reveal{
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.reveal.is-visible{
  opacity: 1;
  transform: translateY(0);
}

/* ===== Reduced motion ===== */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .reveal{ opacity: 1; transform: none; transition: none; }
  .btn, .nav__link, .chip, input, textarea{ transition: none; }
  .bar__fill{ transition: none; }
}