:root{--primary:#0a4d8c;--primary-light:#1a6ff5;--primary-dark:#083e70;--accent:#00d4ff;--bg:#f4f7fb;--bg-dark:#0a1628;--text:#1a1a2e;--text-light:#666;--text-inverse:#fff;--radius:12px;--shadow:0 2px 20px rgba(10,77,140,.08);--shadow-lg:0 8px 40px rgba(10,77,140,.12)}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;font-size:15px;color:var(--text);background:var(--bg);line-height:1.8}
a{color:var(--primary-light);text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1100px;margin:0 auto;padding:0 20px}

/* Header */
.header{background:#fff;box-shadow:0 1px 8px rgba(0,0,0,.06);position:sticky;top:0;z-index:100}
.header-inner{max-width:1100px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 20px}
.logo{display:flex;align-items:center;gap:8px;font-size:20px;font-weight:800;color:var(--primary)}
.logo-icon{width:32px;height:32px;background:var(--primary);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700}
.nav{display:flex;gap:4px}
.nav a{padding:8px 16px;font-size:14px;color:var(--text-light);border-radius:8px;transition:all .2s}
.nav a:hover{color:var(--primary);background:rgba(26,111,245,.06)}
.menu-toggle{display:none;background:none;border:none;font-size:24px;color:var(--primary);cursor:pointer}

/* Hero */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;padding:80px 20px 60px;background:linear-gradient(135deg,var(--bg-dark) 0%,#0d2847 100%);color:#fff}
.hero-bg{position:absolute;inset:0;opacity:.06;background:url('assets/images/keji.png') center/cover no-repeat}
.hero-content{position:relative;z-index:2;text-align:center;max-width:600px}
.hero-avatar{position:relative;width:120px;height:120px;margin:0 auto 24px}
.avatar-ring{position:absolute;inset:0;border-radius:50%;border:2px solid var(--accent);animation:spin 8s linear infinite}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}
.avatar-text{width:100%;height:100%;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;font-size:48px;font-weight:700;color:#fff}
.hero-title{font-size:48px;font-weight:800;margin-bottom:8px;background:linear-gradient(90deg,#fff,var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-subtitle{font-size:20px;color:rgba(255,255,255,.7);margin-bottom:8px}
.hero-tagline{font-size:16px;color:var(--accent);font-weight:600;letter-spacing:2px;margin-bottom:24px}
.hero-info{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.tag{background:rgba(255,255,255,.08);padding:6px 14px;border-radius:20px;font-size:13px;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.1)}
.hero-actions{display:flex;gap:12px;justify-content:center}
.btn{padding:12px 32px;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;display:inline-block;border:none}
.btn-primary{background:var(--primary-light);color:#fff;box-shadow:0 4px 20px rgba(26,111,245,.3)}
.btn-primary:hover{background:var(--primary);transform:translateY(-2px)}
.btn-outline{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.3)}
.btn-outline:hover{background:rgba(255,255,255,.08)}

/* Section */
.section{padding:80px 0}
.section-dark{background:var(--bg-dark);color:#fff}
.section-header{text-align:center;margin-bottom:48px}
.section-label{font-size:12px;font-weight:700;color:var(--primary-light);letter-spacing:3px;margin-bottom:8px}
.section-title{font-size:36px;font-weight:800;color:var(--text)}
.section-dark .section-title{color:#fff}
.section-desc{font-size:16px;color:var(--text-light);margin-top:8px}
.section-dark .section-desc{color:rgba(255,255,255,.6)}

/* About */
.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.about-card{background:#fff;border-radius:var(--radius);padding:32px 24px;text-align:center;box-shadow:var(--shadow);transition:transform .2s}
.about-card:hover{transform:translateY(-4px)}
.about-icon{font-size:40px;margin-bottom:16px}
.about-card h3{font-size:18px;font-weight:700;margin-bottom:12px;color:var(--text)}
.about-card p{font-size:14px;color:var(--text-light);line-height:1.8}

/* GEO */
.geo-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:48px}
.geo-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);padding:28px;transition:all .2s}
.geo-item:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
.geo-num{font-size:12px;font-weight:700;color:var(--accent);margin-bottom:12px;letter-spacing:1px}
.geo-item h3{font-size:18px;font-weight:700;margin-bottom:12px;color:#fff}
.geo-item p{font-size:14px;color:rgba(255,255,255,.6);line-height:1.8}
.geo-quote{text-align:center;max-width:700px;margin:0 auto;padding:32px;border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);position:relative}
.quote-mark{font-size:64px;color:var(--accent);opacity:.3;line-height:1;position:absolute;top:16px;left:24px}
.geo-quote p{font-size:18px;font-weight:500;color:rgba(255,255,255,.85);line-height:1.8;margin-bottom:16px;position:relative;z-index:1}
.quote-author{font-size:14px;color:var(--accent)}

/* Project */
.project-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;display:flex;gap:0}
.project-visual{width:240px;flex-shrink:0;background:var(--primary);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;padding:40px 20px;gap:8px}
.project-icon{font-size:48px}
.project-name{font-size:16px;font-weight:700}
.project-body{padding:40px;flex:1}
.project-body h3{font-size:22px;font-weight:800;margin-bottom:4px;color:var(--text)}
.project-role{font-size:14px;color:var(--primary-light);margin-bottom:16px}
.project-desc{font-size:15px;color:var(--text-light);line-height:1.8;margin-bottom:20px}
.project-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.ptag{background:rgba(26,111,245,.08);color:var(--primary-light);padding:4px 12px;border-radius:6px;font-size:13px;font-weight:500}
.project-stats{display:flex;gap:32px}
.stat{text-align:center}
.stat-num{font-size:28px;font-weight:800;color:var(--primary-light);display:block}
.stat-label{font-size:13px;color:var(--text-light);margin-top:4px}

/* Credentials */
.cred-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cred-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius);overflow:hidden;transition:transform .2s}
.cred-card:hover{transform:translateY(-4px)}
.cred-img{height:280px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:#fff;padding:8px}
.cred-img img{max-height:100%;object-fit:contain;border-radius:4px}
.cred-label{font-size:15px;font-weight:600;color:#fff;padding:16px 16px 4px}
.cred-company{font-size:13px;color:rgba(255,255,255,.5);padding:0 16px 16px}

/* Honor */
.honor-card{display:flex;gap:40px;align-items:center;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:40px;max-width:900px;margin:0 auto}
.honor-img{flex:1;max-width:400px}
.honor-img img{width:100%;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.1)}
.honor-info{flex:1}
.honor-info h3{font-size:24px;font-weight:800;color:var(--primary);margin-bottom:20px}
.honor-info p{font-size:15px;color:var(--text-light);margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid #f0f2f5}
.honor-info p:last-child{border-bottom:none;margin-bottom:0}

/* Contact */
.contact-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);max-width:600px;margin:0 auto;padding:40px}
.contact-row{display:flex;align-items:flex-start;gap:16px;padding:16px 0;border-bottom:1px solid #f0f2f5}
.contact-row:last-child{border-bottom:none}
.contact-icon{font-size:24px;flex-shrink:0;width:32px;text-align:center}
.contact-label{font-size:13px;color:var(--text-light);margin-bottom:2px}
.contact-value{font-size:15px;font-weight:600;color:var(--text)}

/* Footer */
.footer{background:var(--bg-dark);color:rgba(255,255,255,.5);text-align:center;padding:40px 20px;font-size:13px}
.footer a{color:rgba(255,255,255,.5)}

/* Back top */
.back-top{position:fixed;right:20px;bottom:20px;width:48px;height:48px;background:var(--primary-light);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;box-shadow:0 4px 16px rgba(26,111,245,.3);opacity:0;transition:opacity .3s;z-index:99}
.back-top.show{opacity:1}

/* Responsive */
@media(max-width:767px){
.nav{display:none;position:absolute;top:60px;left:0;right:0;background:#fff;flex-direction:column;padding:12px;box-shadow:0 8px 20px rgba(0,0,0,.1);z-index:99}
.nav.open{display:flex}
.menu-toggle{display:block}
.hero{min-height:80vh;padding:60px 16px 40px}
.hero-avatar{width:90px;height:90px}
.avatar-text{font-size:36px}
.hero-title{font-size:26px}
.hero-subtitle{font-size:16px}
.hero-tagline{font-size:14px;letter-spacing:1px}
.hero-info{gap:6px;padding:0 8px}
.tag{font-size:11px;padding:4px 10px}
.hero-actions{flex-direction:column;padding:0 20px}
.btn{width:100%;text-align:center}
.section{padding:48px 0}
.section-title{font-size:24px}
.section-desc{font-size:14px}
.about-grid{grid-template-columns:1fr;gap:16px}
.about-card{padding:24px 16px}
.geo-grid{grid-template-columns:1fr;gap:16px}
.geo-quote{padding:24px 16px}
.quote-mark{font-size:40px;top:8px;left:16px}
.geo-quote p{font-size:15px}
.project-card{flex-direction:column}
.project-visual{width:100%;padding:32px 20px}
.project-body{padding:24px 20px}
.project-body h3{font-size:18px}
.project-stats{gap:20px}
.stat-num{font-size:22px}
.cred-grid{grid-template-columns:1fr;gap:16px}
.cred-img{height:320px}
.contact-card{padding:24px 16px}
.contact-value{font-size:14px}
.footer{padding:32px 16px}
.back-top{right:16px;bottom:16px}
.honor-card{flex-direction:column;padding:24px;gap:24px}
.honor-img{max-width:100%}
.honor-info h3{font-size:20px}
}
@media(min-width:768px) and (max-width:1023px){
.hero-title{font-size:38px}
.about-grid{grid-template-columns:1fr 1fr}
.geo-grid{grid-template-columns:1fr 1fr}
.cred-grid{grid-template-columns:1fr 1fr}
}