:root{
  --bg:#faf8f4;
  --bg-alt:#f1ece2;
  --ink:#20261f;
  --ink-soft:#565c53;
  --primary:#2f6b4f;
  --primary-dark:#204c38;
  --accent:#d98a3d;
  --card-bg:#ffffff;
  --border:#e4ddd0;
  --radius:16px;
  --shadow:0 10px 30px -12px rgba(32,38,31,0.15);
  --maxw:1120px;
  --font:'Poppins', 'Segoe UI', system-ui, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
html,body{overflow-x:hidden;max-width:100%;}
body{
  margin:0;
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* progress bar */
.progress-bar{position:fixed;top:0;left:0;height:3px;background:var(--accent);width:0%;z-index:1000;transition:width .1s linear;}

/* header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(250,248,244,0.85);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease, box-shadow .25s ease;
}
.site-header.scrolled{border-color:var(--border);box-shadow:0 4px 20px -12px rgba(0,0,0,0.15);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 24px;}
.logo{font-weight:600;font-size:1.05rem;color:var(--ink);white-space:nowrap;}
.logo span{color:var(--primary);}
.nav{display:flex;gap:28px;flex:1;justify-content:center;}
.nav a{font-size:.92rem;font-weight:500;color:var(--ink-soft);position:relative;padding:4px 0;}
.nav a:hover{color:var(--primary);}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--primary);transition:width .2s ease;}
.nav a:hover::after{width:100%;}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px;}
.burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:.92rem;transition:transform .18s ease, box-shadow .18s ease, background .18s ease;border:1.5px solid transparent;cursor:pointer;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -8px rgba(47,107,79,0.55);}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);}
.btn-outline{background:transparent;border-color:var(--border);color:var(--ink);}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-small{padding:9px 18px;font-size:.82rem;}

/* hero */
.hero{padding:120px 0 90px;overflow:hidden;}
.hero-inner{display:grid;grid-template-columns:1.2fr 0.8fr;gap:56px;align-items:center;}
.eyebrow{color:var(--primary);font-weight:600;letter-spacing:.06em;text-transform:uppercase;font-size:.8rem;margin:0 0 14px;}
.hero h1{font-size:clamp(2.4rem,5vw,3.6rem);margin:0 0 18px;font-weight:700;line-height:1.08;}
.hero-subtitle{font-size:1.1rem;color:var(--ink-soft);max-width:520px;margin:0 0 26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.hero-tags span{background:var(--card-bg);border:1px solid var(--border);padding:7px 16px;border-radius:999px;font-size:.82rem;font-weight:500;color:var(--ink-soft);}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

.hero-photo{display:flex;justify-content:center;}
.photo-ring{
  width:min(340px,80vw);aspect-ratio:1/1;border-radius:50%;
  background:linear-gradient(145deg,var(--primary),var(--accent));
  padding:8px;box-shadow:var(--shadow);
}
.photo-ring img{width:100%;height:100%;border-radius:50%;object-fit:cover;border:6px solid var(--bg);}

/* sections */
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-label{color:var(--primary);font-weight:600;text-transform:uppercase;letter-spacing:.06em;font-size:.8rem;margin:0 0 10px;}
.section h2{font-size:clamp(1.7rem,3vw,2.3rem);margin:0 0 20px;font-weight:700;}
.section-intro{color:var(--ink-soft);max-width:640px;margin:-8px 0 40px;}

/* about */
.about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:start;}
.about-text p{color:var(--ink-soft);margin:0 0 16px;}
.about-text strong{color:var(--ink);}
.about-facts{display:grid;gap:16px;}
.fact{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;display:flex;flex-direction:column;gap:4px;}
.fact-num{font-size:1.9rem;font-weight:700;color:var(--primary);}
.fact-label{color:var(--ink-soft);font-size:.9rem;}
.fact-loc{font-weight:500;color:var(--ink-soft);padding-top:4px;}

/* skills */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;}
.skill-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);}
.skill-card h3{margin:0 0 16px;font-size:1.02rem;}
.pills{display:flex;flex-wrap:wrap;gap:8px;}
.pills span{background:var(--bg-alt);border-radius:999px;padding:6px 14px;font-size:.8rem;color:var(--ink-soft);font-weight:500;}

/* projects */
.projects-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:26px;align-items:stretch;}
.project-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s ease, box-shadow .2s ease;}
.project-card:hover{transform:translateY(-4px);}
.project-card.featured{grid-column:span 1;}
.project-media{position:relative;background:#111;aspect-ratio:16/10;}
.project-media img,.project-media video{width:100%;height:100%;object-fit:cover;}
.project-icon{font-size:2.6rem;padding:34px 26px 0;}
.badge{position:absolute;top:14px;right:14px;background:rgba(0,0,0,0.6);color:#fff;font-size:.72rem;font-weight:600;padding:5px 12px;border-radius:999px;backdrop-filter:blur(4px);}
.badge-live{background:var(--primary);}

.media-banner{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;padding:20px;}
.banner-icon{font-size:2.8rem;}
.banner-title{color:#fff;font-weight:600;font-size:1.02rem;letter-spacing:.02em;}
.banner-blue{background:linear-gradient(145deg,#2c5b8a,#4a8fc2);}
.banner-green{background:linear-gradient(145deg,#2f6b4f,#5fae7d);}
.banner-orange{background:linear-gradient(145deg,#b5591e,#e08a3f);}
.banner-purple{background:linear-gradient(145deg,#5c3d8a,#8c66c2);}
.project-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1;}
.project-tag{color:var(--primary);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;}
.project-body h3{margin:0;font-size:1.12rem;line-height:1.35;}
.project-body p{margin:0;color:var(--ink-soft);font-size:.92rem;}
.project-tools{display:flex;flex-wrap:wrap;gap:6px;margin:2px 0 6px;}
.project-tools span{background:var(--bg-alt);border-radius:6px;padding:4px 10px;font-size:.74rem;color:var(--ink-soft);font-weight:500;}
.project-body .btn{align-self:flex-start;margin-top:6px;}
.h5p-list{display:flex;flex-direction:column;gap:8px;margin:4px 0;}
.h5p-list a{color:var(--primary);font-weight:600;font-size:.9rem;}
.h5p-list a:hover{text-decoration:underline;}
.h5p-type{color:var(--ink-soft);font-size:.78rem;}
.hint{font-size:.8rem;color:var(--ink-soft);}
.hint a{color:var(--primary);font-weight:600;}

/* timeline */
.timeline{display:grid;gap:28px;margin-bottom:56px;}
.timeline-item{display:grid;grid-template-columns:200px 1fr;gap:28px;padding-bottom:28px;border-bottom:1px solid var(--border);}
.timeline-item:last-child{border-bottom:none;}
.timeline-date{color:var(--primary);font-weight:600;font-size:.88rem;}
.timeline-content h3{margin:0 0 4px;font-size:1.08rem;}
.timeline-org{color:var(--ink-soft);font-weight:500;margin:0 0 10px;font-size:.92rem;}
.timeline-content ul{display:grid;gap:6px;}
.timeline-content li{color:var(--ink-soft);font-size:.9rem;position:relative;padding-left:18px;}
.timeline-content li::before{content:"—";position:absolute;left:0;color:var(--accent);}

.certifications h3{font-size:1.15rem;margin:0 0 20px;}
.cert-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;}
.cert-card{background:var(--card-bg);border:1px solid var(--border);border-radius:12px;padding:18px 20px;display:flex;flex-direction:column;gap:6px;}
.cert-card strong{font-size:.92rem;}
.cert-card span{color:var(--ink-soft);font-size:.8rem;}

/* contact */
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;}
.contact-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease;}
.contact-card:hover{transform:translateY(-3px);border-color:var(--primary);}
.contact-icon{font-size:1.6rem;}
.contact-label{color:var(--ink-soft);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;}
.contact-value{font-weight:600;word-break:break-word;}

/* footer */
.site-footer{border-top:1px solid var(--border);padding:28px 0;}
.footer-inner{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;}
.footer-inner p{margin:0;color:var(--ink-soft);font-size:.85rem;}
.back-top{color:var(--primary);font-weight:600;font-size:.85rem;}

/* reveal animation */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease, transform .6s ease;}
[data-reveal].in-view{opacity:1;transform:translateY(0);}

/* responsive */
@media (max-width:900px){
  .hero-inner{grid-template-columns:1fr;text-align:center;}
  .hero-tags{justify-content:center;}
  .hero-actions{justify-content:center;}
  .hero-photo{order:-1;margin-bottom:20px;}
  .about-grid{grid-template-columns:1fr;}
  .timeline-item{grid-template-columns:1fr;gap:6px;}
}
@media (max-width:760px){
  .nav{
    position:fixed;top:64px;left:0;right:0;bottom:0;
    background:var(--bg);
    flex-direction:column;align-items:center;justify-content:flex-start;
    padding:40px 24px;gap:26px;
    transform:translateX(100%);
    transition:transform .28s ease;
  }
  .nav.open{transform:translateX(0);}
  .nav a{font-size:1.1rem;}
  .burger{display:flex;}
  .header-inner .btn-small{display:none;}
}
@media (max-width:480px){
  .hero{padding:90px 0 60px;}
  .section{padding:64px 0;}
}