/* Ayan Ali — visual system: editorial engineering / robotics research */
:root{--bg:#0b0d10;--surface:#11151a;--elevated:#171c22;--line:#283039;--line-soft:rgba(167,176,186,.16);--text:#f4f6f8;--secondary:#a7b0ba;--muted:#6f7b87;--accent:#29d3c2;--accent-bright:#55e6d7;--sans:'Manrope',Inter,system-ui,sans-serif;--mono:'DM Mono','IBM Plex Mono',monospace;--max:1180px;--mx:0px;--my:0px}
[data-theme=light]{--bg:#f3f5f6;--surface:#e9edef;--elevated:#fff;--line:#c8d0d5;--line-soft:rgba(33,44,52,.15);--text:#101518;--secondary:#50606a;--muted:#74828b;--accent:#087f78;--accent-bright:#0b988e}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);font-family:var(--sans);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}body:before{content:'';position:fixed;inset:0;pointer-events:none;opacity:.25;background-image:linear-gradient(rgba(167,176,186,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(167,176,186,.035) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,black,transparent 70%);z-index:-1}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit}img{display:block;max-width:100%}.container{max-width:var(--max);margin:0 auto;padding:0 34px}.skip-link{position:absolute;left:-9999px;top:20px}.skip-link:focus{left:20px;padding:10px 14px;background:var(--accent);color:#061010;z-index:20}.site-header{height:74px;position:fixed;inset:0 0 auto;z-index:10;background:rgba(11,13,16,.84);border-bottom:1px solid var(--line-soft);backdrop-filter:blur(18px)}[data-theme=light] .site-header{background:rgba(243,245,246,.84)}.nav{height:100%;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:center;gap:11px;font:500 12px var(--mono);letter-spacing:.08em;text-transform:uppercase}.brand-mark{display:grid;place-items:center;width:28px;height:28px;border:1px solid var(--accent);font-size:10px;color:var(--accent)}.nav-links{display:flex;align-items:center;gap:23px;font:400 9px var(--mono);letter-spacing:.08em;text-transform:uppercase}.nav-links a{position:relative;color:var(--secondary);transition:color .25s ease}.nav-links a:hover,.nav-links a.active{color:var(--text)}.nav-links a.active:after{content:'';position:absolute;left:0;right:0;bottom:-10px;height:1px;background:var(--accent);box-shadow:0 0 8px rgba(41,211,194,.4)}.nav-cv{color:var(--accent)!important}.theme-toggle,.menu-toggle{background:none;border:0;cursor:pointer}.theme-toggle{font-size:17px;color:var(--accent)}.menu-toggle{display:none}.hero{position:relative;min-height:840px;padding:175px 0 110px;background:radial-gradient(circle at 76% 45%,rgba(41,211,194,.07),transparent 23%),var(--bg);overflow:hidden}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center;position:relative;z-index:1}.hero:after{content:'FIELD / ROBOTICS    SYSTEM / ACTIVE    RESEARCH / ONGOING';position:absolute;right:34px;bottom:27px;color:var(--muted);font:9px var(--mono);letter-spacing:.08em;word-spacing:12px;opacity:.7}.eyebrow{font:500 10px var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--muted)}.eyebrow.accent{color:var(--accent)}.eyebrow.lime{color:var(--accent)}.eyebrow-dot{display:inline-block;width:5px;height:5px;border-radius:50%;background:var(--accent);margin:0 8px 1px}.hero h1{max-width:730px;margin:27px 0 30px;font-size:clamp(48px,6.8vw,90px);line-height:1.01;letter-spacing:-.075em;font-weight:700}.hero h1 em,.contact h2 em{color:var(--accent);font-style:normal}.hero-intro{max-width:530px;color:var(--secondary);font-size:15px;line-height:1.8}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:36px}.button{display:inline-flex;align-items:center;gap:20px;padding:13px 17px;border:1px solid var(--line);font:500 10px var(--mono);letter-spacing:.09em;text-transform:uppercase;transition:background .25s,border-color .25s,color .25s,transform .25s}.button:hover{transform:translateY(-2px);border-color:var(--accent)}.button-primary{background:var(--accent);border-color:var(--accent);color:#071112}.button-secondary{color:var(--text)}.button-secondary:hover{background:var(--accent);color:#071112}.hero-links{display:flex;gap:18px;margin-top:24px;font:10px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--secondary)}.hero-links a{transition:color .2s}.hero-links a:hover{color:var(--accent)}.hero-meta{display:flex;gap:30px;margin-top:82px;font:9px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.hero-meta strong{color:var(--accent);font-weight:500;margin-right:7px}.hero-visual{position:relative;min-height:475px;display:grid;place-items:center}.hero-visual:before,.hero-visual:after{content:'';position:absolute;border:1px solid var(--line);opacity:.7}.hero-visual:before{inset:10px 35px 32px;border-radius:50%;transform:translate(var(--mx),var(--my))}.hero-visual:after{width:55%;height:55%;border-color:var(--line-soft);transform:rotate(45deg) translate(var(--mx),var(--my))}.portrait-wrap{width:min(360px,72vw);height:435px;position:relative;overflow:hidden;background:var(--elevated);border:1px solid var(--line);clip-path:polygon(9% 0,91% 0,100% 9%,100% 91%,91% 100%,9% 100%,0 91%,0 9%);transition:transform .5s ease,border-color .3s}.portrait-wrap:hover{transform:translateY(-7px) rotate(.5deg);border-color:var(--accent)}.portrait-wrap img{width:100%;height:100%;object-fit:cover;object-position:center top}.portrait-ring{position:absolute;inset:19px;z-index:1;border:1px solid rgba(41,211,194,.62);clip-path:polygon(10% 0,90% 0,100% 10%,100% 90%,90% 100%,10% 100%,0 90%,0 10%);pointer-events:none}.visual-note{position:absolute;right:0;bottom:24px;display:flex;gap:11px;color:var(--muted);font:9px var(--mono);line-height:1.7;text-transform:uppercase}.note-line{width:35px;height:1px;margin-top:7px;background:var(--accent)}.section{padding:135px 0}.intro{border-top:1px solid var(--line)}.intro-grid,.education-grid,.cv-grid,.compact-grid{display:grid;grid-template-columns:1fr 1fr;gap:75px}.section h2,.intro h2{margin-top:19px;font-size:clamp(35px,4.5vw,60px);line-height:1.05;letter-spacing:-.07em}.intro-body{max-width:520px;color:var(--secondary);font-size:14px;line-height:1.85}.intro-body p+p{margin-top:19px}.research-status{display:grid;grid-template-columns:1fr 1.2fr 1.2fr 1.6fr;margin-top:75px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.research-status div{padding:18px 19px;border-right:1px solid var(--line)}.research-status div:last-child{border-right:0}.research-status span,.skills-matrix span,.certifications>span{display:block;color:var(--muted);font:9px var(--mono);letter-spacing:.1em;text-transform:uppercase;margin-bottom:8px}.research-status strong{color:var(--accent);font:500 10px var(--mono);line-height:1.5}.focus-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:75px;border:1px solid var(--line);background:var(--line)}.focus-card{min-height:280px;padding:25px;background:var(--bg);transition:background .3s,transform .3s}.focus-card:hover{background:var(--elevated);transform:translateY(-3px)}.card-index,.project-number,.pub-number{font:10px var(--mono);color:var(--accent)}.focus-card h3{margin:66px 0 11px;font-size:20px;letter-spacing:-.045em}.focus-card p,.project-card p{color:var(--secondary);font-size:13px;line-height:1.75}.chip-row{display:flex;gap:7px;flex-wrap:wrap;margin-top:22px}.chip-row span{padding:5px 8px;border:1px solid var(--line);color:var(--muted);font:9px var(--mono);transition:border-color .25s,color .25s}.focus-card:hover .chip-row span,.project-card:hover .chip-row span{border-color:var(--accent);color:var(--accent)}.section-muted{background:var(--surface)}.section-heading{display:flex;justify-content:space-between;align-items:end;gap:45px}.section-summary{max-width:325px;color:var(--secondary);font-size:13px}.timeline{margin-top:78px;border-top:1px solid var(--line)}.timeline-item{display:grid;grid-template-columns:205px 1fr;gap:50px;padding:30px 0;border-bottom:1px solid var(--line);transition:padding-left .25s}.timeline-item:hover{padding-left:10px}.timeline-date,.project-type,.education-year{font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.timeline-content{position:relative;max-width:720px}.timeline-content:before{content:'';position:absolute;left:-66px;top:7px;width:7px;height:7px;border:1px solid var(--muted);background:var(--surface);border-radius:50%;transition:border-color .25s,background .25s}.timeline-item:hover .timeline-content:before{border-color:var(--accent);background:var(--accent)}.timeline-content h3{font-size:22px;letter-spacing:-.045em}.company{margin:5px 0 13px;color:var(--accent);font-size:12px}.company span{color:var(--muted)}.role-note{font:9px var(--mono);color:var(--muted);letter-spacing:0;text-transform:uppercase}.timeline-content>p:last-child{color:var(--secondary);font-size:13px;line-height:1.75}.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;margin-top:78px;background:var(--line);border:1px solid var(--line)}.project-card{position:relative;display:flex;flex-direction:column;min-height:360px;padding:28px;background:var(--bg);transition:background .3s,transform .3s}.project-card:hover{background:var(--elevated);transform:translateY(-4px);z-index:1}.project-featured{grid-column:span 2;min-height:395px;background:var(--surface);color:var(--text)}.project-featured:hover{background:var(--elevated)}.project-top{display:flex;justify-content:space-between;gap:20px}.project-type{text-align:right}.project-card h3{max-width:650px;margin:48px 0 15px;font-size:29px;line-height:1.1;letter-spacing:-.06em}.project-featured h3{font-size:clamp(32px,4.2vw,55px)}.project-result{display:flex;gap:9px;align-items:baseline;flex-wrap:wrap;margin-top:27px;padding:16px 0;border-top:1px solid var(--line);font:9px var(--mono);color:var(--muted)}.project-result strong{margin-left:18px;color:var(--accent);font-size:17px;font-weight:500}.project-result strong:first-child{margin-left:0}.project-link{margin-top:auto;padding-top:24px;border-top:1px solid var(--line);font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--accent);transition:letter-spacing .25s}.project-link:hover{letter-spacing:.14em}.perception-visual{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-top:28px;padding:17px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);font:9px var(--mono);color:var(--secondary)}.perception-visual span{padding:8px 9px;border:1px solid var(--line);transition:border-color .3s,color .3s,transform .3s}.project-card:hover .perception-visual span{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}.perception-visual i{color:var(--accent);font-style:normal}.pv-visual{display:flex;flex-direction:column;align-items:flex-start;gap:3px;margin:26px 0;font:9px var(--mono);color:var(--accent)}.pv-visual span{position:relative;padding:6px 11px;border-left:1px solid var(--accent);background:rgba(41,211,194,.05)}.pv-visual span:after{content:'';position:absolute;left:-3px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.8}.pv-visual b{padding-left:18px;color:var(--muted);font-size:13px;font-weight:400}.education-grid h2{color:var(--text)}.section-dark{background:#0b0d10;color:var(--text)}.education-list,.cv-links{border-top:1px solid var(--line)}.education-item{display:grid;grid-template-columns:90px 1fr;gap:18px;padding:25px 0;border-bottom:1px solid var(--line)}.education-item h3{font-size:18px;letter-spacing:-.035em}.education-item p{color:var(--secondary);font-size:12px;margin-top:5px}.education-item small{display:block;color:var(--accent);font:10px var(--mono);margin-top:12px}.publication-list{margin-top:78px;border-top:1px solid var(--line)}.publication{display:grid;grid-template-columns:90px 1fr;gap:25px;padding:30px 0;border-bottom:1px solid var(--line);transition:padding-left .25s}.publication:hover{padding-left:10px}.publication h3{max-width:820px;font-size:19px;line-height:1.4;letter-spacing:-.035em}.pub-status{margin-bottom:9px;color:var(--accent);font:10px var(--mono);text-transform:uppercase}.publication p:not(.pub-status){margin-top:9px;color:var(--secondary);font-size:12px}.publication a{display:inline-block;margin-top:13px;border-bottom:1px solid var(--accent);font:10px var(--mono);color:var(--accent)}.recognition-list{border-top:1px solid var(--line)}.recognition-list div{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);font-size:12px;transition:padding-left .25s}.recognition-list div:hover{padding-left:8px}.recognition-list strong{color:var(--accent)}.recognition-list span{color:var(--secondary);text-align:right}.skills-line{display:flex;align-items:center;gap:15px;flex-wrap:wrap;margin-top:80px;padding-top:20px;border-top:1px solid var(--line);font:9px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.skills-line p{color:var(--text);margin-right:15px}.skills-matrix{display:grid;grid-template-columns:repeat(2,1fr);margin-top:72px;border-top:1px solid var(--line);border-left:1px solid var(--line)}.skills-matrix>div{min-height:145px;padding:24px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .25s}.skills-matrix>div:hover{background:var(--elevated)}.skills-matrix span{color:var(--accent)}.skills-matrix p,.certifications p{color:var(--secondary);font-size:14px;line-height:1.75}.certifications{margin-top:27px;padding-top:20px;border-top:1px solid var(--line)}.certifications>span{display:inline-block;margin-right:22px;color:var(--text)}.certifications p{display:inline;font-size:12px}.cv-section{padding:105px 0}.cv-grid h2{color:var(--text)}.cv-links a{display:flex;justify-content:space-between;gap:20px;padding:22px 0;border-bottom:1px solid var(--line);font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--muted);transition:padding-left .25s,color .25s}.cv-links a:hover{padding-left:9px;color:var(--accent)}.cv-links strong{font-weight:400;color:var(--text)}.contact{background:#0b0d10;color:var(--text);padding-bottom:115px}.contact h2{font-size:clamp(52px,8vw,104px);line-height:.94;margin:29px 0}.contact-inner>p:not(.eyebrow){max-width:460px;color:var(--secondary);font-size:14px}.contact-email{display:inline-block;margin-top:46px;border-bottom:1px solid var(--accent);font-size:clamp(22px,3vw,37px);letter-spacing:-.055em}.contact-email span{color:var(--accent);font-size:.65em}.social-links{display:flex;gap:25px;margin-top:36px;font:10px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--secondary)}.social-links a:hover{color:var(--accent)}.footer{padding:21px 0;background:#0b0d10;border-top:1px solid var(--line);color:var(--muted);font:9px var(--mono);letter-spacing:.07em;text-transform:uppercase}.footer .container{display:flex;justify-content:space-between;gap:20px}.footer a{color:var(--text)}.reveal{opacity:0;transform:translateY(14px);transition:opacity .65s ease,transform .65s ease}.reveal.is-visible{opacity:1;transform:none}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
@media(max-width:1100px){.nav-links{gap:12px}.nav-links a{font-size:8px}.nav-cv{display:none}.research-status{grid-template-columns:1fr 1fr}.research-status div:nth-child(2){border-right:0}.research-status div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:800px){.container{padding:0 22px}.site-header{height:67px}.menu-toggle{display:flex;flex-direction:column;gap:6px}.menu-toggle span{width:22px;height:1px;background:var(--text)}.nav-links{display:none;position:absolute;top:67px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:18px;padding:24px 22px 28px;background:var(--bg);border-bottom:1px solid var(--line)}.nav-links.open{display:flex}.nav-links a.active:after{bottom:-5px}.hero{min-height:auto;padding:125px 0 80px}.hero-grid,.intro-grid,.education-grid,.cv-grid,.compact-grid{grid-template-columns:1fr;gap:55px}.hero h1{font-size:clamp(46px,13vw,74px)}.hero-meta{margin-top:55px;gap:16px;flex-wrap:wrap}.hero-visual{min-height:380px}.portrait-wrap{height:365px}.hero:after{display:none}.visual-note{right:4px}.section{padding:90px 0}.section-heading{display:block}.section-summary{margin-top:20px}.research-status{grid-template-columns:1fr;margin-top:50px}.research-status div{border-right:0!important;border-bottom:1px solid var(--line)}.research-status div:last-child{border-bottom:0}.focus-grid,.project-grid{grid-template-columns:1fr;margin-top:52px}.project-featured{grid-column:auto}.timeline{margin-top:52px}.timeline-item{grid-template-columns:1fr;gap:10px}.timeline-content:before{left:-15px;top:39px}.timeline-content{padding-left:0}.project-card h3,.project-featured h3{font-size:29px;margin-top:36px}.project-result{display:grid;grid-template-columns:auto 1fr}.project-result strong{margin-left:0}.perception-visual i{display:none}.skills-matrix{grid-template-columns:1fr;margin-top:52px}.skills-matrix>div{min-height:auto}.certifications>span{display:block;margin:0 0 10px}.certifications p{display:block}.recognition-list div{display:block}.recognition-list span{display:block;text-align:left;margin-top:5px}.skills-line{margin-top:52px}.cv-links a{display:block}.cv-links strong{display:block;margin-top:8px}.contact h2{font-size:16vw}.footer .container{display:block}.footer .container>*{display:block;margin:5px 0}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}.reveal{opacity:1;transform:none}}