:root{
  --accent:#2563EB; /* Modern blue */
  --accent-2:#14B8A6; /* Teal */
  --header-height:72px;
  --bg:#FAFCFF;
  --card:#ffffff;
  --muted:#556375;
  --text:#0B1220;
  --radius:16px;
  --container:1100px;
  --space-1:8px; --space-2:12px; --space-3:16px; --space-4:20px; --space-5:28px; --space-6:48px; --space-7:72px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, 'Helvetica Neue', Arial;
  background:linear-gradient(180deg,#FAFCFF 0%, #F3F7FF 100%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.7;
}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}
/* Header */
.header{ }
header{position:fixed;inset:0 0 auto 0;height:var(--header-height);background:rgba(255,255,255,0.9);backdrop-filter:blur(8px);box-shadow:0 6px 18px rgba(11,18,32,0.05);z-index:80}
.nav-row{display:flex;align-items:center;justify-content:space-between;height:100%}
.brand{font-weight:700;color:var(--accent);font-size:18px}
nav{display:flex;gap:20px;align-items:center}
nav a{color:var(--text);text-decoration:none;padding:10px 12px;border-radius:12px;font-weight:700}
nav a:hover{background:rgba(37,99,235,0.10);color:var(--accent)}
.hamburger{display:none;width:44px;height:44px;border-radius:10px;border:0;background:transparent;cursor:pointer}
.hamburger .bar{display:block;width:20px;height:2px;background:var(--text);margin:5px 0}
/* Mobile nav */
.mobile-nav{display:block;position:fixed;inset:0;background:rgba(0,0,0,.18);backdrop-filter:blur(2px);opacity:0;pointer-events:none;transition:opacity .18s ease;z-index:1000}
.mobile-nav .panel{position:absolute;right:0;top:0;height:100%;width:75%;max-width:360px;background:#fff;box-shadow:-4px 0 24px rgba(0,0,0,.12);transform:translateX(100%);transition:transform .24s cubic-bezier(.4,1.4,.6,1);padding:18px;display:flex;flex-direction:column;gap:12px}
.mobile-nav .panel a{display:block;padding:12px 0;border-bottom:1px solid #f1f5f9}
.mobile-nav.open{opacity:1;pointer-events:auto}
.mobile-nav.open .panel{transform:translateX(0)}
.mobile-link{display:block;padding:12px 12px;border-radius:10px;background:#f8fafc;color:var(--text);font-weight:700;text-decoration:none;box-shadow:0 2px 8px rgba(8,15,30,0.04);margin:4px 0}
.mobile-link:hover{background:#eaf0fa;color:var(--accent)}
.mobile-link:focus{outline:2px solid #b5ead7;outline-offset:2px}
/* Main */
main{padding-top:calc(var(--header-height) + 64px);padding-bottom:80px}
main{padding-top:calc(var(--header-height) + var(--space-7));padding-bottom:80px}
/* ensure anchor targets are visible below the fixed header */
section{scroll-margin-top:calc(var(--header-height) + var(--space-6))}
section{padding:56px 0}
h2{margin:0 0 12px;font-size:24px}
/* Hero */
.section-hero{background:linear-gradient(180deg,rgba(37,99,235,0.08),transparent)}
.section-hero{background:linear-gradient(180deg,rgba(37,99,235,0.08),transparent);padding:var(--space-6) 0}
.hero{display:grid;grid-template-columns:300px 1fr;gap:52px;align-items:center}
.profile{width:300px;height:300px;border-radius:22px;object-fit:cover;box-shadow:0 22px 48px rgba(12,20,40,0.10);border:1px solid rgba(12,20,40,0.06)}
.profile{display:block;width:300px;height:300px;border-radius:22px;object-fit:cover;box-shadow:0 22px 48px rgba(12,20,40,0.10);border:1px solid rgba(12,20,40,0.06)}
.intro h1{margin:0 0 12px;font-size:40px;line-height:1.08}
.intro h1{margin:0 0 var(--space-2);font-size:40px;line-height:1.08}
.hero .actions{margin-top:16px;display:flex;gap:12px}
.hero .actions{margin-top:var(--space-3);display:flex;gap:12px}
.intro h3{margin:6px 0 12px;color:var(--muted);font-weight:600}
.intro p{margin:0;color:#3b4758;max-width:70ch;font-size:17px}
.hero .actions{margin-top:16px;display:flex;gap:12px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 18px;border-radius:14px;border:0;background:var(--accent);color:white;font-weight:800;cursor:pointer;box-shadow:0 10px 26px rgba(37,99,235,0.18);transition:transform .12s ease}
.btn:active{transform:translateY(1px)}
.btn.secondary{background:transparent;color:var(--accent);border:1px solid rgba(37,99,235,0.18)}
/* Grid cards and CV */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{background:var(--card);padding:24px;border-radius:20px;box-shadow:0 12px 30px rgba(12,20,40,0.05);border:1px solid rgba(12,20,40,0.05)}
.section-features{padding:56px 0}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--card);padding:22px;border-radius:16px;box-shadow:0 10px 26px rgba(12,20,40,0.05);border:1px solid rgba(12,20,40,0.04);text-align:center}
.feature-card i{font-size:28px;color:var(--accent)}
.feature-card h3{margin:8px 0}
.card h3{margin-top:0}
.card ul{padding-left:18px;margin:8px 0}
.card ul li{margin-bottom:8px}
/* wide card for highlighted content */
.card--wide{grid-column:1 / span 2}
@media(max-width:980px){
  .card--wide{grid-column:auto}
}
/* CV specifics */
.cv-section{display:grid;grid-template-columns:1fr 360px;gap:24px}
.cv-main{background:transparent;padding:0}
.cv-side .card{position:sticky;top:120px}
.timeline{border-left:2px solid rgba(15,98,254,0.06);padding-left:18px}
.timeline-item{margin-bottom:18px}
.timeline-item h4{margin:0 0 6px}
/* cv inner columns */
.cv-inner{display:flex;gap:18px;align-items:flex-start}
.cv-left{flex:1}
.cv-right{width:260px}
.cv-right .card{box-shadow:none;border:0;padding:0}
.card--aside{padding:14px;background:rgba(246,249,255,0.8);border-radius:12px}
.meta{color:var(--muted);font-size:13px}
.timeline-item{position:relative;padding-left:14px}
.timeline-item:before{content:'';position:absolute;left:-10px;top:6px;width:8px;height:8px;background:var(--accent);border-radius:50%}
/* work / role list */
.work-list{list-style:none;padding:0;margin:0}
.work-item{padding:12px 0;border-bottom:1px solid rgba(12,20,40,0.04)}
.work-item:last-child{border-bottom:0}
.work-item .role{font-weight:700}
.work-item .meta{color:var(--muted);font-size:14px;margin-top:4px}
.work-item .desc{margin-top:8px;color:#374151}
/* Utilities */
.mt-6{margin-top:28px}
.subtitle{margin:6px 0 12px;color:var(--muted);font-weight:600}
.btn-ghost{background:transparent;border:0;color:var(--muted);padding:8px 10px;border-radius:8px}

/* Forms */
.form-wrap{margin-top:18px;max-width:720px}
.form-wrap.small{max-width:420px}
.form-actions{display:flex;gap:12px;align-items:center;margin-top:12px}
.form-msg{color:green;font-weight:700;margin-left:6px}
.login-msg{margin-left:10px;color:#b91c1c;font-weight:700}

/* section band for subtle background separation */
.section-contact{background:linear-gradient(180deg,rgba(37,99,235,0.06),transparent);padding:56px 0}

.social-list{margin-top:8px;display:flex;gap:10px}
.social-list a{color:var(--muted);text-decoration:none}
/* Contact form */
form{background:var(--card);padding:20px;border-radius:14px;border:1px solid rgba(12,20,40,0.03)}
label{display:block;margin-bottom:8px;font-weight:700}
input[type=text],input[type=email],textarea{width:100%;padding:14px;border-radius:12px;border:1px solid #e6eef7;background:#fff}
input:focus,textarea:focus{outline:none;box-shadow:0 8px 30px rgba(15,98,254,0.08);border-color:var(--accent-2)}
#formMsg{font-weight:700}
/* Locked content */
.locked-content{display:none;background:#fff8e6;padding:18px;border-radius:12px;border:1px solid #ffe4a8}
/* Footer */
footer.sleek-footer{
  background:#E0E8F9;
  border-top:1px solid #eaf0fa;
  box-shadow:0 -4px 24px rgba(37,99,235,0.04);
  padding:40px 0 24px 0;
}
.footer-row{display:flex;justify-content:space-between;align-items:center;gap:20px}
.footer-row a{color:var(--accent);text-decoration:none;font-weight:600}
.footer-row a:hover{color:var(--accent-2)}
.social-list{margin-top:8px;display:flex;gap:18px}
.social-list a{color:var(--accent);text-decoration:none;font-weight:600;display:flex;align-items:center;gap:6px}
.social-list a:hover{color:var(--accent-2)}
/* Responsive */
@media(max-width:980px){
  .grid,.sleek-grid{grid-template-columns:1fr 1fr}
  .hero{flex-direction:column;gap:32px}
  .hero-img-wrap{width:100%;justify-content:center}
}
@media(max-width:720px){
  nav{display:none}
  .hamburger{display:block}
  .hero{grid-template-columns:1fr;gap:18px}
  .profile{width:200px;height:200px}
  /* Pastel backgrounds */
  .pastel-bg{background:linear-gradient(120deg,#E0E8F9 0%, #A3CEF1 100%)}
  .grid{grid-template-columns:1fr}
  .cv-section{grid-template-columns:1fr}
  .cv-inner{flex-direction:column}
  .footer-row{flex-direction:column;align-items:flex-start}
}