/* Mustafa Akpinar · refined hybrid portfolio · no external dependencies */
:root{color-scheme:dark;--bg:#080f18;--bg-soft:#0b1621;--surface:#0e1b29;--surface-raised:#102333;--surface-tint:rgba(18,42,57,.72);--text:#edf4f7;--text-soft:#b1c2cb;--muted:#78919e;--line:#264151;--line-soft:rgba(153,213,221,.14);--accent:#91e4d7;--accent-strong:#61dacb;--accent-blue:#8cbef9;--glow:rgba(73,211,202,.18);--button-text:#06151b;--shadow:0 22px 70px rgba(0,0,0,.2);--header-bg:rgba(8,15,24,.92);--tag-bg:rgba(132,216,209,.08);--radius:20px;--serif:none}
html[data-theme=light]{color-scheme:light;--bg:#f8fbfc;--bg-soft:#eef5f7;--surface:#fff;--surface-raised:#f6fbfe;--surface-tint:rgba(237,248,252,.87);--text:#102337;--text-soft:#41596c;--muted:#6c8393;--line:#d5e1e9;--line-soft:rgba(26,70,94,.12);--accent:#137f83;--accent-strong:#0a8f8e;--accent-blue:#2865bc;--glow:rgba(28,160,181,.1);--button-text:#fff;--shadow:0 22px 70px rgba(23,55,75,.08);--header-bg:rgba(248,251,252,.94);--tag-bg:rgba(21,111,137,.07)}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:108px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--accent)}button{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:4px}img,svg{max-width:100%}.container{max-width:1280px;width:calc(100% - 92px);margin:0 auto}.skip-link{position:absolute;top:-100px;left:18px;z-index:99;background:var(--accent);color:var(--button-text);padding:12px 20px;border-radius:10px}.skip-link:focus{top:12px}.accent{color:var(--accent)}
/* Header & navigation */
.site-header{height:82px;position:sticky;top:0;z-index:30;background:var(--header-bg);border-bottom:1px solid var(--line-soft);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}.header-inner{display:flex;align-items:center;gap:34px;height:100%}.brand{display:flex;align-items:center;gap:16px;min-width:285px}.brand-mark{letter-spacing:-2px;font-size:30px;line-height:1;font-weight:830;color:var(--text)}.brand-mark span{color:var(--accent)}.brand-copy{border-left:1px solid var(--line);padding-left:16px;display:flex;flex-direction:column;line-height:1.35}.brand-copy strong{font-size:13px;letter-spacing:-.01em}.brand-copy small{font-size:9px;font-weight:780;letter-spacing:.19em;color:var(--muted)}.primary-nav{display:flex;margin-left:auto;align-items:center;gap:29px}.primary-nav a{font-size:13px;color:var(--text-soft);font-weight:630;transition:color .2s}.primary-nav a:hover{color:var(--accent)}.header-actions{display:flex;align-items:center;gap:11px}.theme-toggle,.nav-toggle{height:39px;width:40px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:transparent;color:var(--text);cursor:pointer;transition:background .2s,border-color .2s}.theme-toggle:hover,.nav-toggle:hover{background:var(--surface-raised);border-color:var(--accent)}.theme-toggle svg{width:18px;height:18px}.theme-moon{display:none}html[data-theme=light] .theme-sun{display:none}html[data-theme=light] .theme-moon{display:block}.github-btn{padding:9px 15px;border-radius:10px;border:1px solid var(--line);font-size:12px;font-weight:740;white-space:nowrap}.github-btn:hover{border-color:var(--accent)}.nav-toggle{display:none;flex-direction:column;gap:4px}.nav-toggle span{display:block;width:17px;height:1.7px;background:var(--text);transition:transform .2s,opacity .2s}.nav-toggle[aria-expanded=true] span:nth-child(1){transform:translateY(5.7px) rotate(45deg)}.nav-toggle[aria-expanded=true] span:nth-child(2){opacity:0}.nav-toggle[aria-expanded=true] span:nth-child(3){transform:translateY(-5.7px) rotate(-45deg)}
/* atmosphere */
main{position:relative;isolation:isolate}.ambient-glow{position:absolute;pointer-events:none;z-index:-2;top:-220px;right:-270px;width:min(75vw,950px);height:930px;border-radius:50%;background:radial-gradient(ellipse at center,rgba(30,122,156,.16),rgba(33,166,158,.07) 37%,transparent 68%);filter:blur(18px)}html[data-theme=light] .ambient-glow{background:radial-gradient(ellipse at center,rgba(118,182,215,.14),transparent 68%)}.hero-grid{position:absolute;pointer-events:none;z-index:-1;top:0;right:0;width:50%;height:740px;opacity:.18;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(90deg,transparent,black 40%,transparent)}
/* hero */
.hero{min-height:670px;padding:77px 0 76px;display:grid;grid-template-columns:1.12fr .9fr;align-items:center;gap:74px}.eyebrow,.section-kicker,.tiny-label,.micro-label{font-weight:790;letter-spacing:.17em;text-transform:uppercase;font-size:11px}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--accent);font-size:10px;letter-spacing:.18em}.eyebrow-sep{opacity:.35}.pulse-dot,.status-dot{width:8px;height:8px;border-radius:100%;background:var(--accent);display:inline-block;box-shadow:0 0 0 5px rgba(106,222,209,.08),0 0 18px var(--glow)}.hero h1{font-size:clamp(42px,4.8vw,76px);line-height:1.085;letter-spacing:-.064em;font-weight:830;margin:33px 0 26px;white-space:nowrap}.headline-highlight{background:linear-gradient(90deg,#b1e8da 8%,#69d6c6 55%,#7da9f7 100%);background-clip:text;-webkit-background-clip:text;color:transparent}html[data-theme=light] .headline-highlight{background:linear-gradient(90deg,#09887e,#2169bb);background-clip:text;-webkit-background-clip:text}.hero-description{max-width:590px;font-size:16px;line-height:1.9;color:var(--text-soft)}.hero-description strong{color:var(--text);font-weight:730}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}.btn{min-height:47px;display:inline-flex;align-items:center;justify-content:center;gap:23px;border-radius:10px;font-size:13px;font-weight:740;padding:12px 19px;border:1px solid var(--line);transition:transform .2s,background .2s,border-color .2s,box-shadow .2s}.btn span{font-size:17px}.btn:hover{transform:translateY(-2px)}.btn-primary{background:linear-gradient(118deg,#9de5d9,#78d0ca);color:#071a21;border-color:transparent}.btn-primary:hover{color:#071a21;box-shadow:0 9px 30px var(--glow)}html[data-theme=light] .btn-primary{background:#136f83;color:#fff}html[data-theme=light] .btn-primary:hover{color:#fff}.btn-secondary{background:rgba(100,170,175,.025);color:var(--text);border-color:var(--line)}.btn-secondary:hover{border-color:var(--accent);color:var(--text);background:var(--tag-bg)}.hero-credentials{display:flex;gap:23px;flex-wrap:wrap;margin-top:40px;color:var(--muted);font-size:10px;font-weight:800;letter-spacing:.085em}.hero-credentials b{font-weight:550}.hero-credentials span+span{border-left:1px solid var(--line);padding-left:23px}
/* Benchmark card */
.benchmark-card{overflow:hidden;border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,var(--surface-tint),var(--surface));box-shadow:var(--shadow),0 0 70px rgba(45,156,163,.05);position:relative}.benchmark-card:before{content:"";position:absolute;inset:0 0 auto;height:2px;background:linear-gradient(90deg,transparent,var(--accent),transparent);opacity:.55}.panel-header{padding:15px 22px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px;align-items:center;color:var(--muted);font-size:9px;font-weight:800;letter-spacing:.18em}.window-dots{color:var(--accent);font-size:18px;font-style:normal;letter-spacing:-.13em;margin-right:12px}.panel-content{padding:29px 28px 24px}.status-line{display:flex;justify-content:space-between;gap:12px;font-size:9px;letter-spacing:.105em;font-weight:800;color:var(--muted)}.status-line span:first-child{color:var(--accent)}.status-dot{height:6px;width:6px;margin-right:8px;vertical-align:middle}.benchmark-card h2{font-size:clamp(24px,2.25vw,33px);line-height:1.24;letter-spacing:-.046em;margin:23px 0 10px}.benchmark-card h2 em{font-style:normal;color:var(--accent)}.panel-explainer{max-width:390px;font-size:12px;color:var(--text-soft);line-height:1.75;margin:0 0 20px;min-height:45px}.metric-switch{display:inline-flex;padding:3px;background:rgba(127,188,198,.07);border:1px solid var(--line);border-radius:9px;gap:3px;margin-bottom:23px}.metric-btn{border:0;background:none;color:var(--muted);padding:6px 12px;font-size:11px;font-weight:750;cursor:pointer;border-radius:6px}.metric-btn.is-active{color:var(--text);background:var(--surface-raised);box-shadow:0 1px 5px rgba(0,0,0,.1)}.chart{display:grid;gap:17px}.chart-row{display:grid;grid-template-columns:98px 1fr 57px;align-items:center;gap:12px;font-size:11px;color:var(--text-soft)}.chart-row strong{text-align:right;font-size:12px;font-weight:770;color:var(--text)}.chart-track{height:8px;position:relative;border-radius:99px;background:rgba(124,178,189,.16);overflow:hidden}.chart-fill{height:100%;width:var(--bar);border-radius:99px;background:linear-gradient(90deg,#6ac8cf,#a1e6d8);transition:width .38s ease}.chart-row:nth-child(2) .chart-fill{background:linear-gradient(90deg,#5bb3db,#8cbee8)}.chart-row:nth-child(3) .chart-fill{background:linear-gradient(90deg,#8299d4,#b7bee7)}.benchmark-caveat{font-size:10px;color:var(--muted);border-top:1px solid var(--line);padding-top:17px;margin:25px 0 0}.panel-metrics{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.panel-metrics>div{padding:17px 22px;border-right:1px solid var(--line);display:flex;flex-direction:column}.panel-metrics>div:last-child{border-right:0}.panel-metrics b{font-size:26px;line-height:1.2;color:var(--accent);letter-spacing:-.045em}.panel-metrics small{color:var(--muted);font-size:11px}.panel-bottom-link{padding:15px 24px;display:flex;justify-content:space-between;color:var(--accent);font-size:12px;font-weight:770}.panel-bottom-link:hover{background:var(--tag-bg)}
/* band */
.proof-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface-tint)}.proof-inner{min-height:96px;display:grid;grid-template-columns:.75fr 1fr 1.2fr 1.15fr;align-items:center;gap:28px}.section-kicker{color:var(--accent);margin:0 0 22px}.proof-inner .section-kicker{margin:0;font-size:10px;white-space:nowrap}.proof-inner>div{display:flex;align-items:center;gap:13px;font-size:12px;font-weight:670;color:var(--text-soft)}.proof-num{border:1px solid var(--line);color:var(--accent);height:31px;min-width:31px;display:grid;place-items:center;border-radius:7px;font-size:10px;font-weight:850}
/* sections */
.section{padding:112px 0;border-bottom:1px solid var(--line-soft)}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:50px;margin-bottom:38px}.section-heading h2,.section h2{font-size:clamp(37px,4.2vw,60px);letter-spacing:-.061em;line-height:1.14;font-weight:810;margin:0}.section h2 span{color:var(--accent)}.section-heading>p{max-width:345px;color:var(--text-soft);font-size:14px;line-height:1.8;margin:0 0 5px}.section-copy{color:var(--text-soft);line-height:1.85;max-width:515px}.section-kicker{font-size:10px}
/* featured cards */
.featured-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.featured-card{background:linear-gradient(145deg,var(--surface),var(--surface-tint));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;position:relative;transition:transform .25s,border-color .25s,box-shadow .25s}.featured-card:hover,.project-card:hover{transform:translateY(-5px);border-color:rgba(125,224,213,.65);box-shadow:0 18px 46px rgba(0,0,0,.11)}.card-top{padding:19px 20px 0;display:flex;justify-content:space-between;align-items:center}.tiny-label{color:var(--accent);font-size:9px}.card-arrow{font-size:19px;color:var(--muted)}.featured-visual{padding:20px 20px 0}.schematic{display:flex;gap:10px;align-items:center;justify-content:center;min-height:154px;position:relative;border:1px solid var(--line-soft);border-radius:13px;background:radial-gradient(circle at 55% 50%,rgba(52,163,157,.13),transparent 75%),repeating-linear-gradient(90deg,transparent 0 35px,rgba(82,160,174,.035) 36px),var(--bg-soft);overflow:hidden;padding:20px 15px 29px}.mini-node{min-width:78px;padding:13px 8px;border:1px solid var(--line);background:var(--surface);border-radius:8px;font-size:10px;line-height:1.35;text-align:center;color:var(--muted)}.mini-node b{font-size:11px;color:var(--text);font-weight:730}.mini-node-bright{border-color:var(--accent);box-shadow:0 0 26px rgba(88,204,193,.1)}.wire{height:1px;flex:1;min-width:9px;max-width:40px;background:linear-gradient(90deg,var(--line),var(--accent));position:relative}.wire:after{content:"›";color:var(--accent);position:absolute;right:-2px;top:-13px;font-size:14px}.schematic-caption{position:absolute;bottom:10px;text-align:center;font-size:8px;letter-spacing:.14em;font-weight:790;color:var(--muted)}.schematic-simple{flex-direction:column;gap:8px;color:var(--muted);font-size:10px;letter-spacing:.1em}.schematic-orbit{font-size:43px;line-height:1;color:var(--accent)}.featured-body{padding:24px 23px 23px}.project-org{font-size:10px;color:var(--muted);font-weight:780;letter-spacing:.025em}.featured-card h3{font-size:21px;line-height:1.25;letter-spacing:-.033em;margin:9px 0 11px;min-height:55px}.featured-card p{font-size:12.5px;line-height:1.75;color:var(--text-soft);min-height:91px;margin:0 0 17px}.tags{display:flex;flex-wrap:wrap;gap:6px}.tags span{border-radius:6px;background:var(--tag-bg);border:1px solid var(--line-soft);color:var(--text-soft);padding:4px 8px;font-size:10px;font-weight:550}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;font-weight:780}.text-link:hover{gap:13px}.featured-card .text-link{margin-top:21px}.all-work-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin:72px 0 23px}.all-work-head h3{font-size:26px;letter-spacing:-.04em;margin:0}.all-work-head p{font-size:13px;color:var(--muted);margin:3px 0 0}.filters{display:flex;gap:7px;flex-wrap:wrap}.filter-btn{border:1px solid var(--line);border-radius:99px;background:transparent;color:var(--text-soft);padding:8px 14px;cursor:pointer;font-size:11px;font-weight:750}.filter-btn span{opacity:.65}.filter-btn.active{background:var(--accent);border-color:var(--accent);color:var(--button-text)}.filter-btn:not(.active):hover{border-color:var(--accent);color:var(--text)}.project-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.project-card{padding:25px;background:var(--surface);border:1px solid var(--line);border-radius:17px;min-height:320px;display:flex;flex-direction:column;transition:transform .25s,border-color .25s,box-shadow .25s}.project-card[hidden]{display:none}.project-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:21px}.project-glyph{font-size:30px;color:var(--accent);line-height:1}.project-card h3{font-size:20px;line-height:1.3;letter-spacing:-.03em;margin:8px 0 9px}.project-card p{font-size:12px;line-height:1.7;color:var(--text-soft);margin:0 0 16px}.project-card .tags{margin-top:auto}.project-card .text-link{margin-top:19px}.disclosure{border:1px dashed var(--line);color:var(--muted);font-size:11px;line-height:1.7;padding:15px 18px;border-radius:10px;margin:25px 0 0}.disclosure span{color:var(--accent);margin-right:6px}
/* research */
.research-section{background:linear-gradient(115deg,transparent,rgba(41,118,127,.075),transparent)}.research-layout{display:grid;grid-template-columns:1fr 1fr;gap:100px}.research-layout .section-copy{margin:23px 0 27px}.research-facts{border-top:1px solid var(--line)}.research-fact{padding:23px 2px;border-bottom:1px solid var(--line)}.research-fact>span{font-size:10px;color:var(--accent);letter-spacing:.15em;font-weight:780}.research-fact strong{display:block;margin-top:8px;font-size:19px;letter-spacing:-.03em}.research-fact p{color:var(--text-soft);font-size:12px;line-height:1.7;margin:8px 0 0}
/* experience */
.experience-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.experience-card{border:1px solid var(--line);border-radius:18px;padding:34px;background:var(--surface);position:relative;overflow:hidden}.experience-card:before{content:"";height:3px;width:120px;position:absolute;top:0;left:34px;background:linear-gradient(90deg,var(--accent),transparent)}.experience-card-top{display:flex;justify-content:space-between;gap:15px;align-items:center;font-size:9px;font-weight:760;letter-spacing:.1em;color:var(--muted)}.experience-card-top .work-year{color:var(--accent)}.experience-card h3{font-size:25px;letter-spacing:-.043em;line-height:1.25;margin:26px 0 14px}.experience-card p{color:var(--text-soft);font-size:13px;line-height:1.85}.experience-card ul{color:var(--text-soft);font-size:12px;padding:0 0 0 18px;line-height:2.1;margin:13px 0 24px}.experience-card li::marker{color:var(--accent)}
/* about */
.about-layout{display:grid;grid-template-columns:1.02fr .9fr;gap:130px}.about-layout>div>p:not(.section-kicker){max-width:550px;font-size:14px;color:var(--text-soft);line-height:1.95}.about-layout h2{margin-bottom:23px}.about-side{border-left:1px solid var(--line);padding-left:45px}.info-block+.info-block{padding-top:28px;border-top:1px solid var(--line);margin-top:24px}.micro-label{display:block;color:var(--accent);font-size:9px;letter-spacing:.14em;margin-bottom:16px}.info-block h3{font-size:15px;letter-spacing:-.02em;margin:15px 0 2px}.info-block p{color:var(--text-soft);font-size:12px;margin:4px 0 0}.cert-list{display:flex;flex-wrap:wrap;gap:9px}.cert-list span{padding:8px 11px;border:1px solid var(--line);border-radius:7px;font-size:11px;color:var(--text-soft)}
/* toolkit */
.skills-section{background:var(--bg-soft)}.skills-section h2{margin-bottom:30px}.skill-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:17px;overflow:hidden}.skill-grid article{padding:30px;border-right:1px solid var(--line);background:var(--surface)}.skill-grid article:last-child{border-right:0}.skill-grid article>span{font-size:10px;letter-spacing:.13em;color:var(--accent);font-weight:800}.skill-grid h3{font-size:19px;letter-spacing:-.03em;margin:18px 0 9px}.skill-grid p{font-size:12px;line-height:1.9;color:var(--text-soft)}
/* Contact & footer */
.contact-section{background:radial-gradient(ellipse at 80% 35%,var(--glow),transparent 50%)}.contact-inner{display:flex;align-items:end;justify-content:space-between;gap:32px}.contact-inner p:not(.section-kicker){max-width:520px;font-size:14px;color:var(--text-soft);line-height:1.8;margin:24px 0 0}.contact-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:4px}.footer{border-top:1px solid var(--line);padding:25px 0;background:var(--bg-soft)}.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:28px}.footer-inner>div{display:flex;align-items:center;gap:18px}.footer-inner strong{font-size:20px;letter-spacing:-.05em}.footer-inner span,.footer-inner p,.footer-inner a{color:var(--muted);font-size:10px}.footer-inner p{margin:0}.footer-inner a{white-space:nowrap}
/* case study pages */
.detail-shell{background:radial-gradient(ellipse at 75% 22%,var(--glow),transparent 58%);border-bottom:1px solid var(--line-soft)}.breadcrumbs{padding:34px 0 0;display:flex;align-items:center;gap:14px;font-size:12px;color:var(--muted)}.breadcrumbs a{color:var(--accent);font-weight:760}.detail-hero{display:grid;grid-template-columns:minmax(0,1fr) 225px;gap:65px;padding:75px 0 42px;align-items:end}.detail-hero h1{font-size:clamp(45px,5.3vw,76px);line-height:1.08;letter-spacing:-.065em;margin:0 0 25px;max-width:880px}.detail-subtitle{font-size:18px;color:var(--text-soft);line-height:1.7;max-width:700px;margin:0 0 24px}.detail-actions{margin-top:30px;display:flex;gap:11px;flex-wrap:wrap}.detail-stat{padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--surface-tint)}.detail-stat strong{font-size:41px;line-height:1.15;letter-spacing:-.05em;color:var(--accent);display:block}.detail-stat p{font-size:12px;color:var(--text-soft);margin:8px 0 0;line-height:1.6}.detail-stat hr{border:0;border-top:1px solid var(--line);margin:24px 0}.detail-visual{margin:18px 0 65px}.detail-visual .schematic{min-height:230px}.detail-visual .mini-node{min-width:145px;padding:23px 15px;font-size:13px}.detail-visual .mini-node b{font-size:15px}.detail-visual .wire{max-width:150px}.detail-visual .schematic-caption{bottom:21px;font-size:10px}.detail-layout{display:grid;grid-template-columns:230px minmax(0,750px);gap:90px;padding:90px 0 100px}.detail-nav{position:sticky;top:128px;align-self:start;display:flex;flex-direction:column;gap:18px;border-left:1px solid var(--line);padding-left:20px}.detail-nav .micro-label{margin-bottom:5px}.detail-nav a{font-size:12px;color:var(--text-soft)}.detail-nav a:hover{color:var(--accent)}.detail-content section+section{margin-top:72px}.detail-content .section-kicker{margin:0 0 12px}.detail-content h2{font-size:36px;line-height:1.2;letter-spacing:-.045em;margin:0 0 21px}.detail-content p,.detail-content li{font-size:15px;color:var(--text-soft);line-height:1.95}.detail-content ol,.detail-content ul{padding-left:23px}.detail-content li{padding-left:6px;margin:0 0 13px}.detail-content li::marker{color:var(--accent);font-weight:800}.safe-note{padding:23px;margin:28px 0 0;border-left:3px solid var(--accent);background:var(--surface);border-radius:0 12px 12px 0}.safe-note strong{font-size:13px}.safe-note p{font-size:12px;margin:9px 0 0}.next-project{padding:35px 0 110px;display:flex;align-items:end;justify-content:space-between;gap:20px}.next-project h2{font-size:39px;letter-spacing:-.05em;line-height:1.2;margin:0}
/* motion */
@keyframes emerge{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.hero-copy,.benchmark-card{animation:emerge .62s both}.benchmark-card{animation-delay:.12s}
/* breakpoints */
@media(max-width:1150px){.container{width:calc(100% - 64px)}.header-inner{gap:20px}.brand{min-width:245px}.primary-nav{gap:17px}.hero{gap:32px;grid-template-columns:1.05fr 1fr}.hero h1{font-size:clamp(43px,4.8vw,65px)}.panel-content{padding:25px 20px}.featured-grid{gap:12px}.featured-body{padding:19px}.about-layout{gap:70px}.proof-inner{gap:12px}.mini-node{min-width:60px}}
@media(max-width:900px){.site-header{height:72px}.container{width:calc(100% - 44px)}.brand{margin-right:auto}.primary-nav{position:absolute;left:0;right:0;top:71px;display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;background:var(--header-bg);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);padding:12px 22px 21px}.primary-nav.is-open{display:flex}.primary-nav a{padding:12px 16px;font-size:14px;border-bottom:1px solid var(--line-soft)}.nav-toggle{display:flex}.hero{grid-template-columns:1fr;min-height:0;gap:55px;padding:65px 0}.hero h1{font-size:clamp(48px,7.5vw,72px)}.hero-description{max-width:650px}.benchmark-card{max-width:670px;width:100%;margin:auto}.proof-inner{grid-template-columns:repeat(3,1fr);gap:15px;padding:20px 0}.proof-inner .section-kicker{grid-column:1/-1}.section{padding:78px 0}.section-heading{align-items:start;flex-direction:column;gap:15px}.featured-grid{grid-template-columns:repeat(2,1fr)}.featured-grid .featured-card:nth-child(3){grid-column:1/-1}.featured-card:nth-child(3) .featured-visual{max-width:65%;margin:0 auto}.featured-card p{min-height:0}.project-grid{grid-template-columns:repeat(2,1fr)}.research-layout{gap:50px}.about-layout{gap:45px}.about-side{padding-left:30px}.detail-hero{gap:24px}}
@media(max-width:680px){.container{width:calc(100% - 34px)}.brand{min-width:0;gap:9px}.brand-mark{font-size:25px}.brand-copy{padding-left:10px}.brand-copy strong{font-size:11px}.brand-copy small{font-size:7px;letter-spacing:.09em}.github-btn{display:none}.header-actions{gap:8px}.hero{padding:53px 0 48px;gap:37px}.eyebrow{font-size:9px;letter-spacing:.1em}.hero h1{white-space:normal;font-size:clamp(38px,9.25vw,58px);margin:22px 0 19px}.hero-description{font-size:14px;line-height:1.82}.hero-actions .btn{flex:1;gap:9px;min-width:0;padding:11px 12px;font-size:11px}.hero-credentials{margin-top:24px;gap:8px;font-size:9px}.hero-credentials span+span{border-left:0;padding-left:0}.benchmark-card h2{font-size:26px}.panel-header{font-size:8px;letter-spacing:.07em;padding:14px 15px}.panel-content{padding:20px 18px}.status-line{font-size:8px}.chart-row{grid-template-columns:85px 1fr 45px;gap:8px;font-size:10px}.chart-row strong{font-size:10px}.panel-metrics>div{padding:15px 12px}.panel-metrics b{font-size:22px}.proof-inner{grid-template-columns:1fr;gap:15px}.proof-inner>div{font-size:11px}.proof-inner .section-kicker{padding-bottom:4px}.section{padding:69px 0}.section-heading h2,.section h2{font-size:clamp(33px,9.6vw,49px)}.section-heading>p{font-size:13px}.featured-grid{grid-template-columns:1fr}.featured-grid .featured-card:nth-child(3){grid-column:auto}.featured-card:nth-child(3) .featured-visual{max-width:none}.featured-card h3{min-height:0}.featured-card p{min-height:0}.all-work-head{align-items:start;flex-direction:column;margin-top:55px}.project-grid{grid-template-columns:1fr}.project-card{min-height:0}.research-layout,.experience-grid,.about-layout,.skill-grid{grid-template-columns:1fr}.research-layout{gap:39px}.experience-card{padding:27px}.experience-card-top{flex-wrap:wrap}.about-side{border-left:0;border-top:1px solid var(--line);padding:30px 0 0}.skill-grid article{border-right:0;border-bottom:1px solid var(--line)}.skill-grid article:last-child{border-bottom:0}.contact-inner{align-items:start;flex-direction:column}.footer-inner{flex-wrap:wrap;gap:9px}.footer-inner p{order:3;width:100%}.detail-hero{grid-template-columns:1fr;padding:50px 0 30px}.detail-hero h1{font-size:clamp(40px,10vw,60px)}.detail-subtitle{font-size:15px}.detail-stat{max-width:320px}.detail-visual{margin:0 0 45px}.detail-visual .schematic{min-height:175px;padding:12px 9px 28px;gap:5px}.detail-visual .mini-node{min-width:0;flex:1;padding:12px 5px;font-size:10px}.detail-visual .mini-node b{font-size:10px}.detail-visual .wire{min-width:8px}.detail-visual .schematic-caption{font-size:7px}.detail-layout{grid-template-columns:1fr;gap:40px;padding:56px 0}.detail-nav{position:static;display:grid;grid-template-columns:repeat(2,1fr);gap:13px;padding:16px;border:1px solid var(--line);border-radius:12px}.detail-nav .micro-label{grid-column:1/-1;margin:0}.detail-content h2{font-size:30px}.detail-content section+section{margin-top:50px}.detail-content p,.detail-content li{font-size:14px}.next-project{align-items:start;flex-direction:column;padding-bottom:80px}.next-project h2{font-size:32px}}
@media(max-width:370px){.container{width:calc(100% - 28px)}.brand-copy small{font-size:6.3px}.hero h1{font-size:37px}.hero-actions{flex-direction:column}.hero-actions .btn{width:100%}.chart-row{grid-template-columns:74px 1fr 45px}.mini-node{padding:10px 5px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}
/* Decorative glow intentionally extends beyond the visual canvas, not the scrollable area. */
body{overflow-x:clip}main{overflow-x:clip}

/* Research result table */
.results-table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:12px;margin-top:21px}.results-table{border-collapse:collapse;width:100%;font-size:13px}.results-table caption{text-align:left;font-size:11px;color:var(--muted);padding:15px 18px;background:var(--surface)}.results-table th,.results-table td{text-align:left;padding:13px 18px;border-top:1px solid var(--line)}.results-table thead th{font-size:11px;color:var(--accent);font-weight:790;letter-spacing:.04em}.results-table tbody th{font-weight:660}.results-table td{color:var(--text-soft)}.detail-content p.results-footnote{font-size:12px;color:var(--muted);line-height:1.8}

/* v4: generalized, security-reviewed architecture illustrations */
.architecture-figure{margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:var(--surface);box-shadow:var(--shadow)}
.architecture-figure img{display:block;width:100%;height:auto;background:#0d1e2a}
.architecture-figure figcaption{padding:18px 24px;display:grid;gap:6px;border-top:1px solid var(--line);color:var(--text-soft);font-size:12px;line-height:1.7}
.architecture-figure figcaption strong{font-size:12px;letter-spacing:.015em;color:var(--accent)}
.detail-visual:has(.architecture-figure){margin:25px 0 54px}
@media(max-width:680px){.architecture-figure{overflow-x:auto}.architecture-figure img{width:850px;max-width:none}.architecture-figure figcaption{width:max(100%,850px);min-width:0}.detail-visual:has(.architecture-figure){margin:0 0 38px}}

.diagram-swipe-hint{display:none;color:var(--accent);font-weight:700}
@media(max-width:680px){.architecture-figure figcaption{width:100%;position:sticky;left:0;box-sizing:border-box}.diagram-swipe-hint{display:block}.architecture-figure img{width:850px}}

/* Version 6: confirmed public contact channels */
.about-contact-line a{display:inline-flex;gap:8px;font-weight:730;color:var(--accent);border-bottom:1px solid var(--line);padding-bottom:3px}
.footer-inner .footer-links{display:flex;gap:15px;align-items:center}
.footer-links a:hover{color:var(--accent)}
@media(max-width:920px){.footer-inner{flex-wrap:wrap;justify-content:flex-start}.footer-inner p{order:3;width:100%}}
@media(max-width:680px){.contact-actions{width:100%}.contact-actions .btn{justify-content:center;flex-grow:1}.footer-inner .footer-links{gap:15px;flex-wrap:wrap}}

/* Version 8: owner-provided professional portrait; scoped to About section. */
.profile-panel{display:grid;grid-template-columns:144px minmax(0,1fr);gap:19px;align-items:center;margin:0 0 29px;padding:14px;border:1px solid var(--line);border-radius:17px;background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.profile-photo-frame{position:relative;aspect-ratio:4/4.65;border-radius:11px;overflow:hidden;background:var(--bg-soft);isolation:isolate}
.profile-photo-frame::after{content:"";pointer-events:none;position:absolute;inset:0;border:1px solid var(--line-soft);border-radius:11px}
.profile-photo-frame picture,.profile-photo-frame img{display:block;width:100%;height:100%}
.profile-photo-frame img{object-fit:cover;object-position:center 39%;filter:none}
.profile-panel-copy{display:flex;flex-direction:column;align-items:flex-start;min-width:0;gap:6px}
.profile-panel-copy .micro-label{margin-bottom:5px}
.profile-panel-copy strong{font-size:21px;line-height:1.17;letter-spacing:-.045em;color:var(--text)}
.profile-panel-role{display:block;font-size:12px;line-height:1.5;color:var(--text-soft)}
.profile-panel-link{margin-top:15px;font-size:12px;font-weight:750;line-height:1.3;color:var(--accent);border-bottom:1px solid var(--line);padding-bottom:5px}
.profile-panel-link:hover{color:var(--accent-strong);border-color:var(--accent-strong)}
@media(max-width:1100px) and (min-width:681px){.profile-panel{grid-template-columns:115px minmax(0,1fr);gap:13px;padding:10px}.profile-panel-copy strong{font-size:17px}.profile-panel-link{margin-top:5px}}
@media(max-width:400px){.profile-panel{grid-template-columns:118px minmax(0,1fr);gap:13px;padding:10px}.profile-panel-copy strong{font-size:17px}.profile-panel-role{font-size:11px}.profile-panel-link{font-size:11px;margin-top:6px}}