:root{--bg:#070a12;--surface:#0d1220;--surface2:#111827;--line:#202943;--text:#f7f8ff;--muted:#a8b0c5;--accent:#7568ff;--accent2:#9b8fff;--good:#4fde9a;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.shell{width:min(var(--max),calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:99;background:white;color:#111;padding:10px}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;z-index:50;background:rgba(7,10,18,.82);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.06)}.nav{height:76px;display:flex;align-items:center;gap:30px}.brand{font-size:1.1rem;font-weight:800;white-space:nowrap}.brand span,.brand b,h1 span,.section-kicker,.text-link{color:var(--accent2)}.nav-links{display:flex;gap:27px;margin-left:auto}.nav-links a{font-size:.9rem;color:#d7dae5;position:relative}.nav-links a:after{content:"";display:block;height:2px;width:0;background:var(--accent);position:absolute;bottom:-8px;transition:.2s}.nav-links a:hover:after,.nav-links a.active:after{width:100%}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:9px;border:1px solid var(--line);font-weight:700;font-size:.9rem;transition:.2s}.btn:hover{transform:translateY(-2px);border-color:var(--accent)}.btn-primary{background:linear-gradient(135deg,var(--accent),#5545ee);box-shadow:0 12px 35px rgba(117,104,255,.25)}.btn-outline{background:rgba(255,255,255,.02)}.nav-cta{margin-left:8px}.menu-toggle{display:none;background:none;border:0;padding:8px}.menu-toggle span{display:block;width:24px;height:2px;background:white;margin:5px}.hero{min-height:670px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:60px;padding-top:55px;overflow:hidden}.eyebrow{display:inline-block;background:#0e1423;border:1px solid #1f2940;border-radius:999px;padding:5px 13px;margin:0 0 18px;font-size:.88rem}h1{font-size:clamp(3rem,6vw,5.5rem);line-height:.96;letter-spacing:-.055em;margin:0 0 18px}h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.15;letter-spacing:-.03em;margin:0 0 18px}.hero h2{font-size:clamp(1.35rem,2.5vw,2rem)}.lead{max-width:610px;color:var(--muted);font-size:1.08rem}.hero-actions{display:flex;gap:14px;margin:30px 0}.quick-links{display:flex;gap:24px;color:var(--muted);font-size:.9rem}.quick-links a:hover{color:white}.portrait-wrap{position:relative;isolation:isolate;align-self:center;width:min(100%,520px);margin-inline:auto;padding:18px}.portrait-wrap::before{content:"";position:absolute;inset:4% 1% 1%;z-index:-1;border:1px solid rgba(155,143,255,.25);border-radius:28px;background:linear-gradient(145deg,rgba(117,104,255,.14),rgba(13,18,32,.34));transform:rotate(2deg)}.portrait-halo{position:absolute;z-index:-2;width:88%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle at 40% 35%,rgba(138,124,255,.9),rgba(73,54,220,.5) 55%,transparent 72%);top:4%;left:6%;filter:blur(8px);box-shadow:0 0 90px rgba(117,104,255,.22)}.portrait-wrap img{display:block;height:auto;max-height:620px;width:100%;aspect-ratio:4/5;object-fit:cover;object-position:50% 24%;clip-path:none;border-radius:24px;border:1px solid rgba(255,255,255,.15);filter:saturate(.9) contrast(1.03);box-shadow:0 24px 70px rgba(0,0,0,.42)}.float-card{position:absolute;background:rgba(18,24,43,.86);border:1px solid rgba(255,255,255,.1);backdrop-filter:blur(12px);padding:13px 16px;border-radius:12px;box-shadow:0 15px 35px rgba(0,0,0,.3)}.float-card strong,.float-card span{display:block}.float-card strong{color:var(--accent2)}.float-card span{font-size:.72rem;color:#dce0ed}.card-one{left:-5%;top:33%}.card-two{right:-2%;top:59%}.metrics{display:grid;grid-template-columns:repeat(4,1fr);background:linear-gradient(180deg,#0e1321,#0b101c);border:1px solid var(--line);border-radius:15px;margin-bottom:40px}.metrics>div{padding:23px;display:grid;grid-template-columns:42px 1fr;column-gap:10px}.metrics>div+div{border-left:1px solid var(--line)}.metrics b{grid-row:1/3;font-size:1.5rem;color:var(--accent2)}.metrics strong{font-size:1rem}.metrics span{color:var(--muted);font-size:.78rem}.section{padding:100px 0}.alt{background:#0a0f1b;border-block:1px solid rgba(255,255,255,.04)}.section-kicker{text-transform:uppercase;letter-spacing:.17em;font-weight:800;font-size:.75rem;margin:0 0 12px}.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.two-col p{color:var(--muted)}.info-card,.skill-card,.education-card,.contact-card{background:linear-gradient(145deg,#101725,#0b101b);border:1px solid var(--line);border-radius:16px}.info-card{padding:30px}.info-card ul{color:var(--muted);padding-left:20px}.info-card li::marker{color:var(--accent)}.timeline{margin:50px 0 0 11px;border-left:2px solid var(--line);max-width:900px}.timeline-item{position:relative;padding:0 0 48px 44px}.timeline-item:last-child{padding-bottom:0}.dot{position:absolute;left:-9px;top:8px;width:16px;height:16px;border:4px solid var(--bg);background:var(--accent);border-radius:50%;box-shadow:0 0 0 2px var(--accent)}.meta{color:var(--accent2);font-size:.78rem;text-transform:uppercase;letter-spacing:.08em}.timeline h3{font-size:1.4rem;margin:5px 0}.timeline h4{color:var(--muted);margin:0 0 9px}.timeline p:last-child{color:var(--muted)}.skill-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:42px}.skill-card{padding:28px;transition:.25s}.skill-card:hover{transform:translateY(-6px);border-color:var(--accent)}.skill-card>span{font-size:1.7rem}.skill-card h3{margin:14px 0 9px}.skill-card p{color:var(--muted);font-size:.9rem}.education-card{margin-top:40px;padding:28px;display:flex;gap:20px;align-items:flex-start;max-width:900px}.edu-icon{font-size:2rem}.education-card h3{margin:5px 0}.education-card p{color:var(--muted)}.contact-section{padding-top:30px}.contact-card{padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:40px}.contact-card p{color:var(--muted)}.contact-list{display:grid;gap:10px}.contact-list>a,.contact-list>div{padding:12px 16px;border:1px solid var(--line);border-radius:10px}.contact-list a:hover{border-color:var(--accent)}.contact-list small,.contact-list strong{display:block}.contact-list small{color:var(--muted)}footer{border-top:1px solid var(--line);padding:26px 0;color:var(--muted)}footer .shell{display:flex;align-items:center;justify-content:space-between}footer p{font-size:.85rem}.reveal{opacity:0;transform:translateY(20px);transition:.6s ease}.reveal.visible{opacity:1;transform:none}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}}@media(max-width:900px){.nav-cta{display:none}.menu-toggle{display:block;margin-left:auto}.nav-links{position:absolute;top:76px;left:20px;right:20px;display:none;flex-direction:column;background:#0d1220;border:1px solid var(--line);border-radius:12px;padding:18px}.nav-links.open{display:flex}.hero{grid-template-columns:1fr;padding-top:80px}.portrait-wrap{width:min(560px,100%);margin:auto}.metrics{grid-template-columns:1fr 1fr}.metrics>div:nth-child(3){border-left:0}.metrics>div:nth-child(n+3){border-top:1px solid var(--line)}.two-col,.contact-card{grid-template-columns:1fr}.skill-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.shell{width:min(100% - 28px,var(--max))}.hero{min-height:auto;gap:20px}.hero-copy{text-align:center}.hero-actions,.quick-links{justify-content:center;flex-wrap:wrap}.portrait-wrap{padding:10px}.portrait-wrap img{height:auto;max-height:520px;aspect-ratio:4/5;object-position:50% 22%}.float-card{display:none}.metrics{grid-template-columns:1fr}.metrics>div+div{border-left:0;border-top:1px solid var(--line)}.section{padding:72px 0}.skill-grid{grid-template-columns:1fr}.contact-card{padding:25px}.education-card{flex-direction:column}footer .shell{flex-direction:column;gap:12px;text-align:center}}

/* Dynamic tiles and protected certificate viewer */
.section-heading{display:flex;justify-content:space-between;gap:40px;align-items:end}.section-intro{max-width:520px;color:var(--muted)}.certificate-filter{display:flex;flex-wrap:wrap;gap:10px;margin:32px 0}.filter-btn{color:var(--muted);background:#0c1220;border:1px solid var(--line);border-radius:999px;padding:9px 17px;cursor:pointer;font:inherit;transition:.2s}.filter-btn:hover,.filter-btn.active{color:#fff;background:var(--accent);border-color:var(--accent)}.certificate-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.certificate-tile{position:relative;overflow:hidden;min-height:255px;background:linear-gradient(145deg,#11192a,#0a0f1b);border:1px solid var(--line);border-radius:18px;cursor:pointer;transform-style:preserve-3d;transition:transform .2s,border-color .2s,box-shadow .2s}.certificate-tile:hover{border-color:var(--accent);box-shadow:0 20px 55px rgba(0,0,0,.35)}.certificate-preview{height:150px;display:grid;place-items:center;background:radial-gradient(circle at 30% 20%,rgba(117,104,255,.27),transparent 42%),linear-gradient(135deg,#151f35,#0b1020);border-bottom:1px solid var(--line)}.certificate-preview img{width:100%;height:100%;object-fit:cover;pointer-events:none;user-select:none}.certificate-placeholder{font-size:3rem;filter:drop-shadow(0 8px 18px rgba(0,0,0,.35))}.certificate-body{padding:18px}.certificate-body h3{margin:0 0 5px;font-size:1.05rem}.certificate-body p{margin:0;color:var(--muted);font-size:.82rem}.tile-tag{position:absolute;top:13px;right:13px;padding:5px 9px;border-radius:999px;background:rgba(8,12,22,.8);border:1px solid rgba(255,255,255,.12);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em}.tile-action{display:flex;align-items:center;justify-content:space-between;margin-top:14px;color:var(--accent2);font-size:.82rem}.certificate-modal[hidden]{display:none}.certificate-modal{position:fixed;inset:0;z-index:100;display:grid;place-items:center;padding:20px}.modal-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.86);backdrop-filter:blur(9px)}.modal-panel{position:relative;z-index:1;width:min(1000px,96vw);max-height:94vh;overflow:auto;background:#0b101b;border:1px solid #2b3656;border-radius:18px;padding:22px;box-shadow:0 30px 100px rgba(0,0,0,.7)}.modal-close{position:absolute;right:16px;top:15px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#121a2b;color:#fff;font-size:1.5rem;cursor:pointer}.viewer-toolbar{display:flex;justify-content:space-between;align-items:center;padding:0 48px 16px 0}.viewer-toolbar h3{margin:2px 0}.viewer-toolbar small{color:var(--muted)}.viewer-badge{color:var(--good);border:1px solid rgba(79,222,154,.35);background:rgba(79,222,154,.08);border-radius:999px;padding:6px 11px;font-size:.72rem}.protected-viewer{position:relative;min-height:400px;display:grid;place-items:center;overflow:hidden;background:#05070d;border:1px solid var(--line);border-radius:12px;user-select:none}.protected-viewer img{display:block;max-width:100%;max-height:72vh;object-fit:contain;pointer-events:none;-webkit-user-drag:none}.viewer-watermark{position:absolute;inset:0;display:grid;place-items:center;transform:rotate(-26deg);font-size:clamp(1rem,3vw,2rem);font-weight:800;letter-spacing:.18em;color:rgba(255,255,255,.15);text-align:center;pointer-events:none;text-shadow:0 1px 2px rgba(0,0,0,.5)}.viewer-shield{position:absolute;inset:0;background:transparent;z-index:3}.viewer-note{color:var(--muted);font-size:.78rem;margin-bottom:0;text-align:center}.no-certificate{padding:70px 22px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:16px;grid-column:1/-1}body.modal-open{overflow:hidden}@media print{.certificate-modal{display:none!important}.protected-viewer{display:none!important}}@media(max-width:900px){.certificate-grid{grid-template-columns:1fr 1fr}.section-heading{display:block}}@media(max-width:600px){.certificate-grid{grid-template-columns:1fr}.protected-viewer{min-height:260px}.modal-panel{padding:14px}.viewer-toolbar{padding-right:42px}.viewer-badge{display:none}}


/* Final portrait alignment override */
.hero{align-items:center}
.portrait-wrap{align-self:center;width:min(100%,480px);padding:0;margin-inline:auto;overflow:visible}
.portrait-wrap::before{inset:12px -12px -12px 12px;transform:none;border-radius:26px;background:rgba(117,104,255,.07)}
.portrait-halo{width:92%;top:4%;left:4%;filter:blur(16px)}
.portrait-wrap img{display:block;width:100%;height:auto;max-height:none;aspect-ratio:4/5;object-fit:contain;object-position:center;border-radius:24px;clip-path:none;margin:0}
.card-one{left:-8%;top:34%}.card-two{right:-6%;top:62%}
@media(max-width:900px){.portrait-wrap{width:min(100%,440px);margin:10px auto 0}.card-one{left:-2%}.card-two{right:-2%}}
@media(max-width:600px){.portrait-wrap{width:min(92vw,390px);padding:0}.portrait-wrap img{height:auto;max-height:none;object-position:center}.portrait-wrap::before{inset:8px -8px -8px 8px}}


/* Definitive circular hero portrait */
.hero{grid-template-columns:1.08fr .92fr;align-items:center;min-height:650px}
.portrait-wrap{position:relative!important;align-self:center!important;width:min(44vw,490px)!important;aspect-ratio:1!important;margin:0 auto!important;padding:28px!important;overflow:visible!important;display:grid!important;place-items:center!important}
.portrait-wrap::before{content:""!important;position:absolute!important;inset:3%!important;border-radius:50%!important;background:linear-gradient(135deg,#8d82ff 0%,#5947e8 60%,#3123a8 100%)!important;border:0!important;transform:none!important;box-shadow:0 0 80px rgba(117,104,255,.3)!important;z-index:-2!important}
.portrait-halo{position:absolute!important;inset:-1%!important;width:auto!important;aspect-ratio:1!important;border-radius:50%!important;background:radial-gradient(circle,rgba(117,104,255,.28),transparent 69%)!important;filter:blur(18px)!important;z-index:-3!important}
.portrait-wrap img{display:block!important;width:100%!important;height:100%!important;max-height:none!important;aspect-ratio:1!important;object-fit:cover!important;object-position:center!important;border-radius:50%!important;clip-path:none!important;margin:0!important;border:7px solid rgba(12,16,29,.82)!important;box-shadow:0 18px 55px rgba(0,0,0,.45)!important}
.card-one{left:-5%!important;top:30%!important}.card-two{right:-7%!important;top:64%!important}
@media(max-width:900px){.hero{grid-template-columns:1fr}.portrait-wrap{width:min(82vw,460px)!important;margin:30px auto 10px!important}.card-one{left:0!important}.card-two{right:0!important}}
@media(max-width:600px){.portrait-wrap{width:min(88vw,380px)!important;padding:20px!important}.portrait-wrap img{height:100%!important;max-height:none!important}.card-one,.card-two{display:none!important}}


/* Resume-accurate experience and education */
.experience-intro{margin-top:-8px}.experience-points{margin:14px 0 0;padding-left:20px;color:var(--muted)}.experience-points li{margin:8px 0}.experience-points li::marker{color:var(--accent2)}.experience-points strong{color:var(--text)}.role-progression{display:inline-block;margin:2px 0 10px;padding:7px 11px;border:1px solid var(--line);border-radius:8px;color:var(--accent2)!important;background:rgba(117,104,255,.06);font-size:.82rem}.education-list{display:grid;gap:16px;margin-top:40px}.education-list .education-card{margin-top:0;max-width:none}.education-list .education-card:hover{border-color:var(--accent)}


/* Modern 2026 visual refresh */
:root{--bg:#050713;--surface:#0b1020;--surface2:#10172b;--line:rgba(159,170,211,.16);--text:#f8f9ff;--muted:#a9b0c8;--accent:#806dff;--accent2:#b1a5ff;--cyan:#56d6ff;--good:#55e6a5;--max:1200px;--radius:22px;--shadow:0 24px 80px rgba(0,0,0,.32)}
body{background:radial-gradient(circle at 12% 12%,rgba(88,66,210,.14),transparent 28%),radial-gradient(circle at 88% 4%,rgba(44,172,255,.09),transparent 22%),var(--bg);overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;z-index:-5;background-image:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(to bottom,black,transparent 72%)}
.scroll-progress{position:fixed;top:0;left:0;z-index:110;width:0;height:3px;background:linear-gradient(90deg,var(--accent),var(--cyan));box-shadow:0 0 18px var(--accent)}
.ambient{position:fixed;z-index:-4;width:420px;height:420px;border-radius:50%;filter:blur(90px);opacity:.12;pointer-events:none}.ambient-one{top:16%;left:-180px;background:var(--accent)}.ambient-two{right:-170px;top:55%;background:var(--cyan)}
.site-header{background:rgba(5,7,19,.64);border-bottom:1px solid rgba(255,255,255,.07);box-shadow:0 8px 32px rgba(0,0,0,.12)}
.nav{height:82px}.brand{letter-spacing:-.02em}.brand span{display:inline-grid;place-items:center;width:31px;height:31px;margin-right:7px;border-radius:9px;background:linear-gradient(135deg,var(--accent),#5542db);color:#fff;box-shadow:0 8px 23px rgba(128,109,255,.28)}
.nav-links{padding:7px;border:1px solid rgba(255,255,255,.06);border-radius:999px;background:rgba(255,255,255,.025);gap:4px}.nav-links a{padding:8px 12px;border-radius:999px}.nav-links a:after{display:none}.nav-links a:hover,.nav-links a.active{background:rgba(128,109,255,.15);color:#fff}
.btn{border-radius:12px;padding:13px 21px}.btn-primary{background:linear-gradient(135deg,#8b78ff,#6652f2 58%,#4f39d9);box-shadow:0 14px 42px rgba(117,94,255,.28)}.btn-primary:hover{box-shadow:0 18px 50px rgba(117,94,255,.4)}.btn-outline{background:rgba(255,255,255,.035);border-color:rgba(255,255,255,.13);backdrop-filter:blur(12px)}
.hero{position:relative;min-height:720px;padding-top:55px;padding-bottom:28px}.hero-grid{position:absolute;top:82px;left:50%;width:min(1200px,100%);height:680px;transform:translateX(-50%);z-index:-2;background:radial-gradient(circle at 67% 48%,rgba(128,109,255,.14),transparent 31%)}
.eyebrow{display:inline-flex;align-items:center;gap:9px;background:rgba(12,18,36,.65);border-color:rgba(135,121,255,.25);box-shadow:inset 0 1px rgba(255,255,255,.04);backdrop-filter:blur(10px)}.status-dot{width:8px;height:8px;border-radius:50%;background:var(--good);box-shadow:0 0 0 5px rgba(85,230,165,.1),0 0 15px rgba(85,230,165,.55);animation:pulse 2s infinite}@keyframes pulse{50%{box-shadow:0 0 0 8px transparent,0 0 20px rgba(85,230,165,.65)}}
h1{font-size:clamp(3.2rem,6.4vw,6rem);background:linear-gradient(105deg,#fff 15%,#d9d5ff 45%,#8e7cff 76%,#58d7ff);-webkit-background-clip:text;background-clip:text;color:transparent}h1 span{color:inherit}.hero h2{color:#e8eafb;font-weight:650}.lead{font-size:1.05rem;max-width:630px}.quick-links a{display:inline-flex;align-items:center;gap:6px;padding:7px 10px;border-radius:9px;background:rgba(255,255,255,.025);border:1px solid transparent}.quick-links a:hover{border-color:var(--line);background:rgba(255,255,255,.05)}
.portrait-wrap::after{content:"";position:absolute;inset:18%;z-index:-1;border-radius:50%;background:rgba(86,214,255,.16);filter:blur(48px)}
.metrics{position:relative;overflow:hidden;border-radius:20px;background:linear-gradient(135deg,rgba(16,23,43,.88),rgba(8,13,25,.9));backdrop-filter:blur(20px);box-shadow:var(--shadow)}.metrics::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(128,109,255,.09),transparent);transform:translateX(-100%);animation:sheen 7s infinite}@keyframes sheen{70%,100%{transform:translateX(100%)}}
.section{padding:112px 0}.section h2{max-width:750px}.alt{background:linear-gradient(180deg,rgba(10,15,29,.82),rgba(7,11,22,.75));border-block-color:rgba(255,255,255,.05)}
.info-card,.skill-card,.education-card,.contact-card,.certificate-tile{border-radius:var(--radius);background:linear-gradient(145deg,rgba(18,26,47,.9),rgba(8,13,25,.92));border-color:rgba(164,174,216,.14);box-shadow:inset 0 1px rgba(255,255,255,.035)}
.info-card{position:relative;overflow:hidden}.info-card::after{content:"";position:absolute;width:160px;height:160px;border-radius:50%;right:-70px;top:-70px;background:rgba(128,109,255,.13);filter:blur(25px)}
.timeline{border-left:1px solid rgba(128,109,255,.35)}.timeline-item{padding-left:50px}.dot{left:-8px;width:14px;height:14px;background:linear-gradient(135deg,var(--cyan),var(--accent));box-shadow:0 0 0 5px rgba(128,109,255,.08),0 0 20px rgba(128,109,255,.42)}.timeline-item h3{font-size:1.55rem}.role-progression{border-radius:999px!important;padding:8px 13px!important}
.skill-grid{gap:20px}.skill-card{position:relative;overflow:hidden;min-height:225px;padding:30px}.skill-card::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 5%,rgba(128,109,255,.13),transparent 38%);opacity:0;transition:.25s}.skill-card:hover::before{opacity:1}.skill-card:hover{transform:translateY(-8px);box-shadow:0 25px 60px rgba(0,0,0,.26);border-color:rgba(128,109,255,.42)}.skill-card>span{display:grid;place-items:center;width:50px;height:50px;border-radius:15px;background:linear-gradient(145deg,rgba(128,109,255,.2),rgba(86,214,255,.09));border:1px solid rgba(151,139,255,.22)}
.education-card{transition:.25s}.education-card:hover{transform:translateX(7px);box-shadow:0 18px 45px rgba(0,0,0,.2)}
.certificate-tile{transition:transform .25s,border-color .25s,box-shadow .25s}.certificate-preview{background:radial-gradient(circle at 25% 15%,rgba(128,109,255,.28),transparent 38%),linear-gradient(135deg,#151d36,#090e1d)}
.contact-card{position:relative;overflow:hidden;background:radial-gradient(circle at 12% 15%,rgba(128,109,255,.18),transparent 32%),linear-gradient(135deg,#10182d,#090e1b);box-shadow:var(--shadow)}
footer{background:rgba(4,6,14,.8)}.back-top{position:fixed;right:24px;bottom:24px;z-index:45;width:46px;height:46px;border:1px solid rgba(255,255,255,.13);border-radius:14px;background:rgba(13,19,36,.8);backdrop-filter:blur(14px);color:#fff;font-size:1.25rem;cursor:pointer;opacity:0;transform:translateY(14px);pointer-events:none;transition:.25s}.back-top.show{opacity:1;transform:none;pointer-events:auto}.back-top:hover{background:var(--accent);transform:translateY(-3px)}
.reveal{transform:translateY(28px) scale(.985);transition:.72s cubic-bezier(.2,.75,.25,1)}.reveal.visible{transform:none}
@media(max-width:1050px){.nav-links{border:0;background:none;padding:0}.nav-links a{padding:7px 8px}}
@media(max-width:900px){.nav-links{background:rgba(10,15,29,.97);padding:18px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.hero{padding-top:70px}.section{padding:88px 0}}
@media(max-width:600px){.section{padding:72px 0}h1{font-size:clamp(3rem,16vw,4.4rem)}.hero-actions .btn{flex:1}.metrics{border-radius:16px}.back-top{right:15px;bottom:15px}.quick-links{gap:7px}}


/* Certificate document presentation */
.certificate-preview{height:300px;padding:14px;background:#eef1f7}.certificate-preview img{object-fit:contain;border-radius:8px;box-shadow:0 10px 28px rgba(0,0,0,.18)}.certificate-tile{min-height:430px}.protected-viewer{background:#171a22}.protected-viewer img{background:#fff}@media(max-width:600px){.certificate-preview{height:340px}.certificate-tile{min-height:470px}}