:root{
  --bg:#0b1220;
  --card:#0f1a30;
  --card2:#0c172c;
  --text:#e8eefc;
  --muted:#b7c3dd;
  --line:rgba(255,255,255,.10);
  --accent:#7c5cff;
  --accent2:#22c55e;
  --shadow: 0 12px 35px rgba(0,0,0,.35);
  --radius: 18px;
  --container: 1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background: radial-gradient(1200px 800px at 20% -10%, rgba(124,92,255,.35), transparent 60%),
              radial-gradient(900px 600px at 95% 0%, rgba(34,197,94,.15), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}

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

.container{
  width:min(var(--container), calc(100% - 2rem));
  margin-inline:auto;
}

.skip{
  position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip:focus{left:1rem; top:1rem; width:auto; height:auto; padding:.75rem 1rem; background:#111a2f; border:1px solid var(--line); border-radius:12px}

.site-header{
  position:sticky; top:0; z-index:50;
  background: rgba(11,18,32,.75);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner{display:flex; align-items:center; justify-content:space-between; padding:.9rem 0}
.brand{display:flex; align-items:center; gap:.75rem}
.brand-mark{
  width:38px; height:38px; display:grid; place-items:center;
  border-radius:12px;
  background: linear-gradient(135deg, rgba(124,92,255,.95), rgba(34,197,94,.65));
  box-shadow: var(--shadow);
  font-weight:800;
}
.brand-text{font-weight:700; letter-spacing:.2px}

.nav-links{display:flex; align-items:center; gap:1rem}
.nav-links a{color:var(--muted); font-weight:600}
.nav-links a:hover{color:var(--text); text-decoration:none}

.nav-toggle{
  display:none;
  background:transparent; border:1px solid var(--line); color:var(--text);
  border-radius:12px; padding:.45rem .6rem;
}
.burger{display:block; width:18px; height:2px; background:var(--text); position:relative}
.burger:before,.burger:after{content:""; position:absolute; left:0; width:18px; height:2px; background:var(--text)}
.burger:before{top:-6px}
.burger:after{top:6px}

.hero{padding:4.2rem 0 2.6rem}
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .85fr;
  gap:1.4rem;
  align-items:start;
}
.eyebrow{color:var(--muted); letter-spacing:.16em; text-transform:uppercase; font-weight:700; font-size:.78rem}
h1{margin:.4rem 0 1rem; font-size: clamp(2rem, 4vw, 3rem); line-height:1.12}
.lead{color:var(--muted); font-size:1.05rem; max-width:62ch}

.hero-badges{display:flex; flex-wrap:wrap; gap:.6rem; margin:1.2rem 0 1.3rem}
.badge{
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  padding:.55rem .7rem;
  border-radius:999px;
  color:var(--text);
  font-size:.9rem;
}
.badge strong{color:#ffffff}

.cta-row{display:flex; flex-wrap:wrap; gap:.8rem; align-items:center; margin:1rem 0}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  padding:.85rem 1.05rem;
  border-radius:14px;
  border:1px solid rgba(124,92,255,.35);
  background: linear-gradient(135deg, rgba(124,92,255,.95), rgba(124,92,255,.55));
  color:#0a0f1b;
  font-weight:800;
  box-shadow: var(--shadow);
}
.btn:hover{text-decoration:none; filter:brightness(1.03)}
.btn:active{transform: translateY(1px)}
.btn-ghost{
  background: rgba(255,255,255,.03);
  color:var(--text);
  border:1px solid var(--line);
  box-shadow:none;
}
.btn-small{padding:.55rem .8rem; border-radius:12px; font-weight:800}

.meta{display:flex; flex-wrap:wrap; gap:.9rem; color:var(--muted); font-weight:600; margin-top:.7rem}
.hero-card{display:flex; flex-direction:column; gap:1rem}

.section{padding:3.2rem 0}
.section-alt{background: rgba(255,255,255,.02); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.section-head{max-width:80ch}
.section-head h2{font-size:1.8rem; margin:0 0 .65rem}
.section-head p{color:var(--muted); margin:0 0 1.25rem}

.card{
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding:1.1rem 1.15rem;
  box-shadow: 0 8px 24px rgba(0,0,0,.22);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover{
  transform: translateY(-5px);
  box-shadow: 0 20px 48px rgba(0,0,0,.38), 0 0 0 1px rgba(124,92,255,.25), 0 0 28px rgba(124,92,255,.12);
  border-color: rgba(124,92,255,.3);
}
.card.subtle{background: rgba(255,255,255,.02)}
.card-title{margin:0 0 .7rem; font-size:1.15rem}

.cards-3{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1rem;
}

.quick-list{margin:.6rem 0 0; padding-left:1.05rem; color:var(--muted)}
.quick-list li{margin:.35rem 0}

.small{color:var(--muted); margin:.2rem 0 0}
.small.subtle-text{opacity:.85}

.impact-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:1rem;
}
.impact{
  padding:1.1rem 1rem;
  border-radius: var(--radius);
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
}
.impact-icon{font-size:1.8rem;margin-bottom:.4rem}
.impact-number{
  font-size:2rem; font-weight:900; margin:0;
  letter-spacing:-.02em;
  background: linear-gradient(135deg, rgba(124,92,255,1), rgba(34,197,94,1));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.impact-label{margin:.35rem 0 0; color:var(--muted)}

.skill-groups{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1rem;
}
.tags{
  list-style:none; padding:0; margin:.7rem 0 0;
  display:flex; flex-wrap:wrap; gap:.55rem;
}
.tags li{
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  padding:.45rem .65rem;
  border-radius:999px;
  color:var(--muted);
  font-weight:650;
  font-size:.92rem;
}

.timeline{
  display:flex; flex-direction:column; gap:1.5rem;
  position:relative;
  padding-left:1.75rem;
}
.timeline::before{
  content:'';
  position:absolute;
  left:0; top:8px; bottom:8px;
  width:2px;
  background:linear-gradient(to bottom,rgba(124,92,255,.7),rgba(124,92,255,.06));
  border-radius:2px;
}
.timeline-item{
  display:grid;
  grid-template-columns: .95fr 1.6fr;
  gap:1rem;
  align-items:start;
  position:relative;
}
.timeline-meta{position:relative}
.timeline-meta::before{
  content:'';
  position:absolute;
  left:-2.1rem; top:.4rem;
  width:14px; height:14px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  border:3px solid var(--bg);
  box-shadow:0 0 0 4px rgba(124,92,255,.18);
  z-index:1;
}
.timeline-meta .role{font-weight:900; margin:0}
.timeline-meta .org{color:var(--muted); margin:.15rem 0 0; font-weight:700}
.timeline-meta .dates{color:rgba(183,195,221,.9); margin:.2rem 0 0; font-weight:650}
.timeline-body ul{margin:.25rem 0 0; padding-left:1.05rem; color:var(--muted)}
.timeline-body li{margin:.35rem 0}

.case .case-sub{color:var(--muted); margin:.15rem 0 1rem; font-weight:650}
.case-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap:.7rem;
}
.case-grid h4{margin:0 0 .3rem; font-size:1rem}
.case-grid p, .case-grid ul{margin:0; color:var(--muted)}
.case-grid ul{padding-left:1.05rem}
.note{color:var(--muted); margin:1rem 0 0}

.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:1rem;
}
.contact-list{list-style:none; margin:0; padding:0; display:grid; gap:.65rem}
.contact-list li{display:grid; grid-template-columns: 90px 1fr; gap:.8rem; align-items:center}
.contact-list span:first-child{color:rgba(183,195,221,.85); font-weight:800}

.form{display:grid; gap:.8rem}
label span{display:block; margin:0 0 .35rem; color:rgba(183,195,221,.9); font-weight:800}
input, textarea{
  width:100%;
  background: rgba(255,255,255,.03);
  border:1px solid var(--line);
  border-radius:14px;
  padding:.75rem .85rem;
  color:var(--text);
  font-size:1rem;
}
input:focus, textarea:focus{outline:2px solid rgba(124,92,255,.55); outline-offset:2px}

.availability-badge{
  display:inline-flex; align-items:center; gap:.55rem;
  padding:.45rem .9rem;
  border-radius:999px;
  border:1px solid rgba(34,197,94,.3);
  background: rgba(34,197,94,.08);
  color:#22c55e;
  font-weight:700;
  font-size:.875rem;
  margin-bottom:.9rem;
}
.avail-dot{
  width:8px; height:8px;
  border-radius:50%;
  background:#22c55e;
  animation: pulse-dot 2s ease-in-out infinite;
  flex-shrink:0;
}
@keyframes pulse-dot{
  0%,100%{ opacity:1; transform:scale(1) }
  50%{ opacity:.5; transform:scale(.75) }
}

.footer{margin-top:2.1rem; color:rgba(183,195,221,.8)}
.sr-only{
  position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0;
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid{grid-template-columns: 1fr; }
  .cards-3{grid-template-columns: 1fr}
  .impact-grid{grid-template-columns: 1fr 1fr}
  .skill-groups{grid-template-columns: 1fr}
  .timeline-item{grid-template-columns: 1fr}
  .contact-grid{grid-template-columns: 1fr}
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;
    position:absolute;
    right:1rem; top:64px;
    flex-direction:column;
    background: rgba(11,18,32,.92);
    border:1px solid var(--line);
    border-radius: 16px;
    padding:.65rem;
    width:min(240px, calc(100% - 2rem));
  }
  .nav-links.show{display:flex}
}

.bullets{margin:.7rem 0 0; padding-left:1.05rem; color:var(--muted)}
.bullets li{margin:.35rem 0}
.service-cta{margin-top:1rem}
.service-steps{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:.8rem;
  margin:.8rem 0 0;
}
.service-steps div{
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  border-radius: 16px;
  padding:.75rem .85rem;
  display:flex;
  flex-direction:column;
  gap:.25rem;
}
.service-steps strong{font-weight:900}
.service-steps span{color:var(--muted); font-weight:650}
.step-num{
  width:34px; height:34px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  display:grid; place-items:center;
  font-weight:900; font-size:.9rem;
  color:#0b1220;
  margin-bottom:.5rem;
  flex-shrink:0;
}

/* Tech stack bar */
.tech-bar{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.tech-pill{
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.32rem .75rem;border-radius:999px;
  font-size:.78rem;font-weight:700;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  transition:transform .15s,background .15s;
  cursor:default;
}
.tech-pill:hover{transform:translateY(-2px);background:rgba(255,255,255,.08);color:var(--text)}
.tech-dot{width:7px;height:7px;border-radius:50%;display:inline-block;flex-shrink:0}
@media (max-width: 980px){
  .service-steps{grid-template-columns: 1fr}
}

/* Animated gradient H1 */
.hero h1{
  background: linear-gradient(135deg, #e8eefc 20%, #7c5cff 45%, #22c55e 55%, #7c5cff 65%, #e8eefc 80%);
  background-size: 300% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: h1-gradient 7s ease infinite;
}
@keyframes h1-gradient{
  0%{ background-position: 0% center }
  50%{ background-position: 100% center }
  100%{ background-position: 0% center }
}

/* Skill tags hover */
.tags li{
  transition: background .18s, border-color .18s, color .18s;
  cursor: default;
}
.tags li:hover{
  background: rgba(124,92,255,.15);
  border-color: rgba(124,92,255,.45);
  color: var(--text);
}

/* Scroll reveal */
.reveal{
  opacity:0;
  transform: translateY(26px);
  transition: opacity .55s ease, transform .55s ease;
}
.reveal.revealed{
  opacity:1;
  transform: translateY(0);
}

/* Active nav link */
.nav-links a.active{
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-color: rgba(124,92,255,.6);
}

/* Back to top */
.back-to-top{
  position:fixed;
  bottom: 5.5rem;
  right: 1.5rem;
  width:44px; height:44px;
  border-radius:50%;
  border:1px solid var(--line);
  background: rgba(11,18,32,.88);
  backdrop-filter: blur(12px);
  color:var(--text);
  display:grid; place-items:center;
  cursor:pointer;
  opacity:0;
  transform: translateY(12px);
  transition: opacity .3s, transform .3s, box-shadow .2s;
  z-index:45;
  pointer-events:none;
}
.back-to-top.visible{
  opacity:1;
  transform: translateY(0);
  pointer-events:auto;
}
.back-to-top:hover{
  box-shadow: 0 0 0 1px rgba(124,92,255,.4), 0 0 18px rgba(124,92,255,.2);
}

/* WhatsApp floating button */
.whatsapp-btn{
  position:fixed;
  bottom:1.5rem;
  right:1.5rem;
  display:inline-flex;
  align-items:center;
  gap:.6rem;
  padding:.75rem 1.15rem;
  border-radius:999px;
  background:#25d366;
  color:#fff;
  font-weight:800;
  font-size:.9rem;
  box-shadow: 0 8px 28px rgba(37,211,102,.35);
  text-decoration:none;
  z-index:45;
  transition: transform .2s, box-shadow .2s;
}
.whatsapp-btn:hover{
  transform: translateY(-3px);
  box-shadow: 0 14px 38px rgba(37,211,102,.48);
  text-decoration:none;
}
@media(max-width:600px){
  .whatsapp-btn span{ display:none }
  .whatsapp-btn{ padding:.75rem }
  .back-to-top{ bottom:5rem }
}

/* FAQ */
.faq-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:1rem;
  margin-top:.6rem;
}
details.faq{
  margin-top:.8rem;
  border:1px solid var(--line);
  background: rgba(255,255,255,.02);
  border-radius: 16px;
  padding:.7rem .85rem;
}
details.faq summary{
  cursor:pointer;
  font-weight:850;
  color: var(--text);
  list-style:none;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary:after{
  content:"+";
  float:right;
  color: rgba(183,195,221,.9);
  font-weight:900;
}
details.faq[open] summary:after{content:"–"}
.faq-body{margin-top:.65rem; color:var(--muted)}
.faq-cta{margin-top:1rem}
@media (max-width: 980px){
  .faq-grid{grid-template-columns: 1fr}
}