:root,[data-theme=dark]{color-scheme:dark;--bg: #05060b;--bg-grid: rgba(255, 255, 255, .035);--card: #0b0e18;--card-border: rgba(255, 255, 255, .08);--indigo: #6366f1;--indigo-deep: #4f52e0;--cyan: #22d3ee;--text: #f4f5f7;--text-dim: #94a0b8;--text-faint: #5c6580;--header-bg: rgba(5, 6, 11, .78);--mobile-menu-bg: rgba(5, 6, 11, .92);--surface: #0e121f;--surface-hover-border: rgba(255, 255, 255, .25);--logo-mark-text: #05060b;--badge-border: rgba(99, 102, 241, .4);--badge-bg: rgba(99, 102, 241, .08);--badge-text: #a5b4fc;--pill-bg: rgba(99, 102, 241, .08);--pill-border: rgba(99, 102, 241, .25);--pill-text: #c7d2fe;--btn-glass-border: rgba(255, 255, 255, .12);--skill-icon-bg: linear-gradient( 135deg, rgba(99, 102, 241, .18), rgba(34, 211, 238, .12) );--skill-hover-border: rgba(99, 102, 241, .4)}[data-theme=light]{color-scheme:light;--bg: #f4f6fc;--bg-grid: rgba(15, 23, 42, .06);--card: #ffffff;--card-border: rgba(15, 23, 42, .1);--indigo: #4f46e5;--indigo-deep: #4338ca;--cyan: #0891b2;--text: #0f172a;--text-dim: #475569;--text-faint: #64748b;--header-bg: rgba(244, 246, 252, .88);--mobile-menu-bg: rgba(244, 246, 252, .96);--surface: #e8ecf4;--surface-hover-border: rgba(15, 23, 42, .22);--logo-mark-text: #ffffff;--badge-border: rgba(79, 70, 229, .35);--badge-bg: rgba(79, 70, 229, .08);--badge-text: #4338ca;--pill-bg: rgba(79, 70, 229, .07);--pill-border: rgba(79, 70, 229, .22);--pill-text: #3730a3;--btn-glass-border: rgba(255, 255, 255, .35);--skill-icon-bg: linear-gradient( 135deg, rgba(79, 70, 229, .12), rgba(8, 145, 178, .1) );--skill-hover-border: rgba(79, 70, 229, .35)}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:Plus Jakarta Sans,sans-serif;line-height:1.6;background-image:linear-gradient(var(--bg-grid) 1px,transparent 1px),linear-gradient(90deg,var(--bg-grid) 1px,transparent 1px);background-size:42px 42px;transition:background-color .25s ease,color .25s ease}a{color:inherit;text-decoration:none}.wrap{max-width:1180px;margin:0 auto;padding:0 32px}.mono{font-family:JetBrains Mono,monospace}.gradient-text{background:linear-gradient(90deg,var(--indigo),var(--cyan));-webkit-background-clip:text;background-clip:text;color:transparent}header{position:sticky;top:0;z-index:50;background:var(--header-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--card-border);transition:background-color .25s ease,border-color .25s ease}nav{display:flex;align-items:center;justify-content:space-between;padding:20px 0}.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.02em}.logo-mark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,var(--indigo),var(--cyan));display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;color:var(--logo-mark-text)}.nav-links{display:flex;gap:36px;font-size:15px;font-weight:500;color:var(--text-dim)}.nav-links a:hover{color:var(--text)}.nav-links a.is-active{color:var(--text);font-weight:600}.nav-cta{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--indigo),var(--indigo-deep));color:#fff;font-weight:700;font-size:14px;padding:11px 20px;border-radius:9px;border:1px solid var(--btn-glass-border)}.nav-cta:hover{filter:brightness(1.1)}.nav-right{display:flex;align-items:center;gap:12px}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:9px;background:var(--surface);border:1px solid var(--card-border);color:var(--text);font-size:18px;line-height:1;cursor:pointer;transition:border-color .2s ease,background-color .25s ease}.theme-toggle:hover{border-color:var(--surface-hover-border)}.theme-toggle-icon{display:none}[data-theme=dark] .theme-toggle .theme-icon-light,[data-theme=light] .theme-toggle .theme-icon-dark{display:block}.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:9px;background:var(--surface);border:1px solid var(--card-border);color:var(--text);font-size:20px;cursor:pointer;transition:border-color .2s ease,background-color .25s ease}.nav-toggle:hover{border-color:var(--surface-hover-border)}.mobile-menu{display:none;position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:var(--mobile-menu-bg);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);padding:24px 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0;text-align:center;color:var(--text-faint);font-size:14px}[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}[data-reveal].in{opacity:1;transform:translateY(0)}@media (max-width: 860px){.nav-links,.nav-cta{display:none}.nav-toggle{display:inline-flex}}@media (max-width: 560px){section{padding:64px 0}}.hero{padding:120px 0 90px;text-align:center}.badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--badge-border);background:var(--badge-bg);color:var(--badge-text);font-size:13px;font-weight:600;padding:8px 18px;border-radius:999px;margin-bottom:34px}.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan)}h1.headline{font-size:clamp(38px,6vw,68px);font-weight:800;letter-spacing:-.03em;line-height:1.05;margin-bottom:28px}.hero-sub{max-width:680px;margin:0 auto 42px;color:var(--text-dim);font-size:18px;font-weight:400}.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:80px}.btn-primary{background:linear-gradient(135deg,var(--indigo),var(--indigo-deep));color:#fff;font-weight:700;font-size:15px;padding:15px 28px;border-radius:10px;display:inline-flex;align-items:center;gap:10px;border:1px solid var(--btn-glass-border)}.btn-primary:hover{filter:brightness(1.1)}.btn-secondary{background:var(--surface);color:var(--text);font-weight:700;font-size:15px;padding:15px 28px;border-radius:10px;border:1px solid var(--card-border);transition:border-color .2s ease,background-color .25s ease}.btn-secondary:hover{border-color:var(--surface-hover-border)}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;max-width:900px;margin:0 auto}.stat-num{font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--cyan);letter-spacing:-.02em}.stat-label{font-size:13.5px;color:var(--text-dim);margin-top:6px}.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:start}.about-text p{color:var(--text-dim);font-size:16.5px;margin-bottom:18px}.about-text b{color:var(--text);font-weight:700}.competency-card{background:var(--card);border:1px solid var(--card-border);border-radius:16px;padding:28px;transition:background-color .25s ease,border-color .25s ease}.competency-card h3{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em}.pill-grid{display:flex;flex-wrap:wrap;gap:10px}.pill{background:var(--pill-bg);border:1px solid var(--pill-border);color:var(--pill-text);font-size:13px;font-weight:600;padding:8px 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var(--cyan)}.tl-meta{display:flex;flex-wrap:wrap;gap:14px;align-items:baseline;margin-bottom:6px}.tl-role{font-size:19px;font-weight:700}.tl-dates{font-size:13px;color:var(--text-faint)}.tl-company{color:var(--cyan);font-weight:600;font-size:14.5px;margin-bottom:14px}.tl-bullets{list-style:none}.tl-bullets li{position:relative;padding-left:20px;margin-bottom:10px;color:var(--text-dim);font-size:15px}.tl-bullets li:before{content:"▸";position:absolute;left:0;color:var(--indigo);font-size:13px;top:2px}.tl-bullets b{color:var(--text);font-weight:700}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px}.info-card{background:var(--card);border:1px solid var(--card-border);border-radius:16px;padding:28px}.info-card h4{font-size:16px;font-weight:700;margin-bottom:6px}.info-card .org{color:var(--cyan);font-size:14px;font-weight:600;margin-bottom:4px}.info-card 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var(--card-border);font-size:17px;font-weight:600}.contact-row:last-child{border-bottom:none}.contact-icon{width:38px;height:38px;border-radius:10px;background:var(--skill-icon-bg);display:flex;align-items:center;justify-content:center;font-size:16px}.contact-note{margin-top:28px;font-size:13.5px;color:var(--text-faint)}@media (max-width: 860px){.about-grid{grid-template-columns:1fr}.skills-grid{grid-template-columns:1fr 1fr}.grid-2{grid-template-columns:1fr}.stats{grid-template-columns:1fr 1fr}}@media (max-width: 560px){.skills-grid{grid-template-columns:1fr}.hero{padding:90px 0 60px}.contact-card{padding:32px 22px}}.cert-page{padding:48px 0 80px}.cert-hero{margin-bottom:40px}.cert-hero .badge{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--badge-border);background:var(--badge-bg);color:var(--badge-text);font-size:13px;font-weight:600;padding:8px 18px;border-radius:999px;margin-bottom:16px}.cert-hero .badge .dot{width:6px;height:6px;border-radius:50%;background:var(--cyan)}.cert-status{display:inline-block;margin-left:8px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--cyan)}.cert-disclaimer{margin-top:16px;padding:14px 16px;border-radius:12px;border:1px solid var(--card-border);background:var(--card);color:var(--text-dim);font-size:13px;line-height:1.55}.cert-toolbar{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:24px}.cert-search{flex:1 1 220px;max-width:420px;padding:12px 16px;border-radius:10px;border:1px solid var(--card-border);background:var(--surface);color:var(--text);font-family:inherit;font-size:15px}.cert-search:focus{outline:2px solid rgba(99,102,241,.45);outline-offset:1px}.cert-tabs{display:flex;flex-wrap:wrap;gap:8px}.cert-tab{padding:10px 16px;border-radius:999px;border:1px solid var(--card-border);background:var(--surface);color:var(--text-dim);font-size:14px;font-weight:600;cursor:pointer;transition:border-color .2s ease,color .2s ease,background-color .25s ease}.cert-tab:hover{border-color:var(--surface-hover-border);color:var(--text)}.cert-tab.is-active{border-color:#6366f173;background:var(--pill-bg);color:var(--pill-text)}.cert-panel{display:none}.cert-panel.is-active{display:block}.cert-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:28px}.cert-stat{background:var(--card);border:1px solid var(--card-border);border-radius:14px;padding:18px}.cert-stat-num{font-size:28px;font-weight:800;color:var(--cyan);letter-spacing:-.02em}.cert-stat-label{margin-top:4px;font-size:13px;color:var(--text-dim)}.cert-timeline{list-style:none;display:grid;gap:16px}.cert-timeline-item{background:var(--card);border:1px solid var(--card-border);border-radius:14px;padding:20px 22px}.cert-timeline-date{font-family:JetBrains Mono,monospace;font-size:12px;color:var(--text-faint);margin-bottom:6px}.cert-timeline-title{font-size:17px;font-weight:700;margin-bottom:8px}.cert-timeline-note{color:var(--text-dim);font-size:15px;line-height:1.55}.cert-grid{display:grid;gap:16px}.cert-concept-card{background:var(--card);border:1px solid var(--card-border);border-radius:14px;padding:20px 22px}.cert-concept-head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px}.cert-concept-title{font-size:17px;font-weight:700}.cert-tag-list{display:flex;flex-wrap:wrap;gap:8px}.cert-tag{font-size:11px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:5px 10px;border-radius:999px;background:var(--pill-bg);border:1px solid var(--pill-border);color:var(--pill-text)}.cert-concept-body{color:var(--text-dim);font-size:15px;line-height:1.6}.cert-qa-list{display:grid;gap:12px}.cert-qa{background:var(--card);border:1px solid var(--card-border);border-radius:14px;overflow:hidden}.cert-qa summary{cursor:pointer;list-style:none;padding:18px 20px;font-weight:600;font-size:15px;line-height:1.45;display:flex;align-items:flex-start;gap:12px}.cert-qa summary::-webkit-details-marker{display:none}.cert-qa summary:before{content:"+";flex-shrink:0;width:22px;height:22px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--card-border);color:var(--cyan);font-size:14px;font-weight:700}.cert-qa[open] summary:before{content:"−"}.cert-qa-meta{display:block;margin-top:6px;font-size:12px;font-weight:600;color:var(--text-faint)}.cert-qa-body{padding:0 20px 18px 54px;color:var(--text-dim);font-size:15px;line-height:1.6;border-top:1px solid var(--card-border)}.cert-qa-actions{display:flex;flex-wrap:wrap;gap:10px;padding:0 20px 16px 54px}.cert-mark-btn{font-size:12px;font-weight:600;padding:6px 12px;border-radius:8px;border:1px solid var(--card-border);background:var(--surface);color:var(--text-dim);cursor:pointer}.cert-mark-btn.is-done{border-color:#22d3ee73;color:var(--cyan)}.cert-empty{text-align:center;padding:48px 24px;color:var(--text-dim);border:1px dashed var(--card-border);border-radius:14px}.cert-loading{color:var(--text-dim);padding:24px 0}@media (max-width: 860px){.cert-stats{grid-template-columns:1fr 1fr}}@media (max-width: 560px){.cert-page{padding:32px 0 64px}.cert-qa-body,.cert-qa-actions{padding-left:20px}}