/*
  style.css
  Modern, minimal, responsive cyber-themed portfolio.
  Uses only CSS (no frameworks). Includes neon accents, sticky nav,
  cards, progress bars, and scroll/reveal-friendly styles.
*/

:root{
  --bg:#070A12;
  --panel:rgba(12,18,34,.72);
  --panel-2:rgba(18,26,49,.55);
  --text:#D7E1FF;
  --muted:rgba(215,225,255,.72);

  --blue:#39A5FF;
  --green:#39FF88;

  --border:rgba(120,170,255,.18);
  --border-2:rgba(57,255,136,.16);

  --shadow: 0 18px 50px rgba(0,0,0,.55);

  --radius:18px;
  --radius-sm:12px;

  --container: 1100px;
  --nav-h: 70px;

  --focus: 0 0 0 4px rgba(57,165,255,.25);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Helvetica Neue", Helvetica, "Noto Sans", "Liberation Sans", sans-serif;
  background: radial-gradient(900px 600px at 15% 5%, rgba(57,165,255,.14), transparent 50%),
              radial-gradient(800px 550px at 80% 15%, rgba(57,255,136,.10), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.6;
}

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

/* Accessible focus */
:focus-visible{ outline:none; box-shadow: var(--focus); border-radius: 10px; }

/* Background cyber grid */
.bg{
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
}
.bg__grid{
  position:absolute;
  inset:-2px;
  background:
    linear-gradient(to right, rgba(57,165,255,.08) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(57,255,136,.07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at 40% 25%, black 0%, transparent 62%);
  opacity:.55;
}
.bg__glow{
  position:absolute;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: .35;
}
.bg__glow--blue{ background: radial-gradient(circle at 30% 30%, rgba(57,165,255,.9), transparent 60%); left:-120px; top:60px; }
.bg__glow--green{ background: radial-gradient(circle at 30% 30%, rgba(57,255,136,.8), transparent 60%); right:-140px; top:140px; }

.container{
  width: min(var(--container), calc(100% - 40px));
  margin: 0 auto;
}

/* Sticky nav */
.nav{
  position:sticky;
  top:0;
  z-index:50;
  height: var(--nav-h);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding: 10px 20px;
  backdrop-filter: blur(10px);
  background: rgba(7,10,18,.35);
  border-bottom:1px solid rgba(120,170,255,.14);
}

.nav__toggle{
  display:none;
  width:44px; height:44px;
  background: rgba(12,18,34,.7);
  border:1px solid rgba(120,170,255,.18);
  border-radius: 12px;
  align-items:center;
  justify-content:center;
  gap:4px;
  cursor:pointer;
}
.nav__toggle-bar{
  display:block;
  width:20px;
  height:2px;
  background: rgba(215,225,255,.85);
  border-radius:999px;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  letter-spacing:.2px;
}
.brand__dot{
  width:12px; height:12px;
  border-radius:50%;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 0 18px rgba(57,165,255,.35), 0 0 18px rgba(57,255,136,.25);
}
.brand__text{ font-size: 14px; }

.nav__links{
  display:flex;
  align-items:center;
  gap: 18px;
}
.nav__link{
  font-size: 14px;
  color: rgba(215,225,255,.86);
  padding: 10px 10px;
  border-radius: 12px;
  transition: transform .2s ease, background-color .2s ease, color .2s ease;
}
.nav__link:hover{
  background: rgba(57,165,255,.10);
  color: #fff;
  transform: translateY(-1px);
}
.nav__link--cta{
  background: rgba(57,255,136,.08);
  border:1px solid rgba(57,255,136,.16);
}
.nav__link--cta:hover{ background: rgba(57,255,136,.14); }

/* Sections */
.section{
  padding: 74px 0;
}
.section__head{
  margin-bottom: 26px;
  max-width: 760px;
}
.section__title{
  margin:0;
  font-size: 28px;
  letter-spacing:.2px;
}
.section__subtitle{
  margin: 8px 0 0;
  color: var(--muted);
}

/* Hero */
.hero{ padding-top: 56px; }
.hero__grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 22px;
  align-items: start;
}
.hero__content{
  padding: 10px 0;
}
.hero__actions{
  display:flex;
  gap: 14px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.eyebrow{ display:flex; gap:10px; flex-wrap:wrap; margin:0 0 10px; }
.pill{
  font-size: 12px;
  border:1px solid rgba(120,170,255,.22);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(12,18,34,.55);
}
.pill--blue{ box-shadow: 0 0 0 1px rgba(57,165,255,.08) inset; }
.pill--green{ border-color: rgba(57,255,136,.18); box-shadow: 0 0 0 1px rgba(57,255,136,.08) inset; }

.hero__title{
  font-size: 52px;
  margin: 8px 0 10px;
  line-height:1.04;
  letter-spacing: -.6px;
}
.hero__subtitle{
  font-size: 18px;
  margin: 0;
  color: rgba(215,225,255,.88);
  font-weight: 500;
}
.typing{ display:inline-block; }
.typing-caret{ color: var(--green); margin-left: 6px; opacity: .9; animation: blink 1s steps(2) infinite; }
@keyframes blink{ 50%{ opacity: 0; } }

.hero__lead{ margin-top: 14px; color: var(--muted); max-width: 56ch; }

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 650;
  font-size: 14px;
  border:1px solid rgba(120,170,255,.20);
  transition: transform .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.btn--primary{
  background: linear-gradient(135deg, rgba(57,165,255,.18), rgba(57,255,136,.12));
  border-color: rgba(57,165,255,.30);
  box-shadow: 0 10px 30px rgba(57,165,255,.12);
}
.btn--primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 18px 50px rgba(57,165,255,.18);
  border-color: rgba(57,165,255,.45);
}

.btn--ghost{
  background: rgba(12,18,34,.45);
  border-color: rgba(120,170,255,.20);
}
.btn--ghost:hover{
  transform: translateY(-2px);
  background: rgba(12,18,34,.65);
  border-color: rgba(57,255,136,.28);
}

.hero__panel{ position: sticky; top: calc(var(--nav-h) + 16px); }

.panel{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.panel__header{
  padding: 16px 16px 12px;
  border-bottom: 1px solid rgba(120,170,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.panel__tag{
  font-size: 12px;
  color: rgba(215,225,255,.75);
}
.panel__status{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(57,255,136,.10);
  border:1px solid rgba(57,255,136,.18);
}
.panel__list{ list-style:none; margin:0; padding: 14px 16px 10px; }
.panel__list li{ font-size: 14px; color: rgba(215,225,255,.86); padding: 8px 0; border-bottom: 1px dashed rgba(120,170,255,.10); }
.panel__list li:last-child{ border-bottom:none; }
.panel__list .k{ color: var(--muted); margin-right: 8px; }
.panel__footer{ padding: 14px 16px 16px; }
.link{ display:inline-flex; gap:8px; align-items:center; color: rgba(215,225,255,.9); }
.link:hover{ color:#fff; text-decoration: underline; text-underline-offset: 4px; }

.meta-card{
  margin-top: 22px;
  width: fit-content;
  background: rgba(12,18,34,.45);
  border:1px solid rgba(120,170,255,.18);
  border-radius: 14px;
  padding: 14px 16px;
}
.meta-card__k{ font-size: 12px; color: var(--muted); }
.meta-card__v{ font-size: 14px; margin-top: 6px; }

/* Cards */
.card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 45px rgba(0,0,0,.35);
}
.card--wide{ padding: 18px; }
.card--hover{ transition: transform .22s ease, border-color .22s ease, background-color .22s ease; }
.card--hover:hover{
  transform: translateY(-4px);
  border-color: rgba(57,165,255,.40);
  background: rgba(12,18,34,.78);
}

.card__icon{ font-size: 22px; width: 40px; height: 40px; display:flex; align-items:center; justify-content:center; border-radius: 14px; background: rgba(57,165,255,.10); border:1px solid rgba(57,165,255,.18); }
.card__body{ padding: 16px 6px; }
.card__top{ display:flex; flex-wrap: wrap; align-items:center; justify-content:space-between; gap: 12px; }
.card__title{ margin:0; font-size: 16px; font-weight: 760; }
.card__badge{ font-size: 12px; padding: 8px 10px; border-radius: 999px; border:1px solid rgba(57,255,136,.18); background: rgba(57,255,136,.08); color: rgba(215,225,255,.9); }
.card__header{ display:flex; gap:14px; align-items:flex-start; padding: 16px; }
.card__text{ margin:0; padding: 0 16px 16px; color: var(--muted); }
.card__chips{ padding: 0 16px 16px; display:flex; gap:10px; flex-wrap:wrap; }

.chip{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(12,18,34,.55);
  border:1px solid rgba(120,170,255,.16);
  color: rgba(215,225,255,.86);
}

/* Reveal animations (controlled by JS add .is-visible) */
[data-reveal]{
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }

/* Skills */
.skills{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 16px;
}
.skill{ padding: 16px; border-radius: var(--radius); background: rgba(12,18,34,.45); border:1px solid rgba(120,170,255,.16); }
.skill--wide{ grid-column: 1 / -1; }
.skill__head{ display:flex; align-items:baseline; justify-content:space-between; gap: 12px; margin-bottom: 10px; }
.skill__name{ font-weight: 800; }
.skill__pct{ color: rgba(215,225,255,.76); font-size: 13px; }

.progress{
  height: 10px;
  background: rgba(120,170,255,.14);
  border-radius: 999px;
  overflow:hidden;
  border:1px solid rgba(120,170,255,.16);
}
.progress__bar{
  display:block;
  height:100%;
  width:0;
  background: linear-gradient(90deg, rgba(57,165,255,.95), rgba(57,255,136,.78));
  box-shadow: 0 0 18px rgba(57,165,255,.25);
  transition: width 1.1s ease;
}
.skill.is-visible .progress__bar{ width: var(--w, 0%); }

/* Tags */
.tags{ margin-top: 12px; display:flex; flex-wrap:wrap; gap: 10px; }
.tag{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border:1px solid rgba(57,255,136,.16);
  background: rgba(12,18,34,.40);
  color: rgba(215,225,255,.86);
}

/* Experience */
.timeline{ position:relative; padding-left: 18px; }
.timeline::before{
  content:"";
  position:absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, rgba(57,165,255,.55), rgba(57,255,136,.35));
  opacity:.55;
}
.timeline__item{ position:relative; padding: 0; margin-left: 0; }
.timeline__dot{
  position:absolute;
  left: 0;
  top: 26px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--blue), var(--green));
  box-shadow: 0 0 0 4px rgba(57,165,255,.14);
}
.bullets{ margin: 10px 0 16px; padding: 0 18px; color: var(--muted); }
.bullets li{ margin: 8px 0; }

/* Projects */
.grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 16px;
}

/* Certifications */
.grid--cert{ grid-template-columns: repeat(3, minmax(0,1fr)); }
.cert{
  padding: 16px;
  border-radius: var(--radius);
  background: rgba(12,18,34,.45);
  border:1px solid rgba(120,170,255,.16);
  transition: transform .2s ease, border-color .2s ease;
}
.cert:hover{ transform: translateY(-3px); border-color: rgba(57,255,136,.28); }
.cert__title{ font-weight: 750; color: rgba(215,225,255,.92); }

/* Education */
.edu{ display:flex; align-items:center; justify-content:space-between; gap: 14px; flex-wrap:wrap; }
.edu__school{ font-weight: 850; }
.edu__degree{ margin-top:6px; color: var(--muted); }
.edu__meta{ display:flex; gap: 10px; }
.edu__status{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border:1px solid rgba(57,165,255,.20);
  background: rgba(57,165,255,.10);
}
.edu__expected{
  font-size: 12px;
  padding: 8px 10px;
  border-radius: 999px;
  border:1px solid rgba(57,255,136,.18);
  background: rgba(57,255,136,.08);
}

/* Contact */
.section--contact{ padding-bottom: 56px; }
.contact{ display:grid; grid-template-columns: 1fr; gap: 16px; }
.contact__card{ padding: 18px; }
.contact__row{ display:flex; justify-content:space-between; align-items:center; gap: 14px; padding: 10px 0; border-bottom: 1px dashed rgba(120,170,255,.10); }
.contact__row:last-child{ border-bottom:none; }
.contact__k{ color: var(--muted); font-size: 14px; }
.contact__v{ font-weight: 750; color: rgba(215,225,255,.95); }
.contact__cta{ display:flex; }
.cta-box{
  width: 100%;
  background: rgba(12,18,34,.45);
  border: 1px solid rgba(120,170,255,.16);
  border-radius: var(--radius);
  padding: 18px;
}
.cta-box__title{ margin:0; font-size: 18px; }
.cta-box__text{ margin: 8px 0 14px; color: var(--muted); }

.footer{ margin-top: 26px; color: rgba(215,225,255,.65); font-size: 13px; text-align:center; }

/* Mobile / Responsive */
@media (max-width: 980px){
  .hero__grid{ grid-template-columns: 1fr; }
  .hero__panel{ position: static; }
  .grid{ grid-template-columns: 1fr; }
  .grid--cert{ grid-template-columns: 1fr; }
  .skills{ grid-template-columns: 1fr; }
  .nav__links{ display:none; }
  .nav__toggle{ display:flex; }
  .nav{ padding: 10px 14px; }
}

/* Mobile nav dropdown */
@media (max-width: 980px){
  .nav__links[data-open="true"]{
    display:flex;
    flex-direction: column;
    position:absolute;
    left: 14px;
    right: 14px;
    top: calc(var(--nav-h) - 6px);
    padding: 12px;
    background: rgba(7,10,18,.75);
    border: 1px solid rgba(120,170,255,.18);
    border-radius: 16px;
  }
  .nav__link{ padding: 12px 12px; }
}