/* Bogdan / dimensional portfolio. System fonts, no framework or remote assets. */
:root{color-scheme:light;--bg:#f5f7fa;--bg-2:#edf0f5;--surface:#fff;--text:#151d2d;--muted:#576273;--line:#dce1e8;--accent:#385bb5;--lime:#c9d2ff;--on-lime:#142043;--max:1280px;--radius:26px;--nav:#f5f7faee;--shadow:0 20px 50px #18253d12;--edge:#ffffffb0}
html[data-theme=dark]{color-scheme:dark;--shadow:0 24px 65px #0005;--edge:#ffffff12}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:120px}body{margin:0;font:400 1rem/1.7 -apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}a{color:inherit;text-underline-offset:5px}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}img,svg{max-width:100%}h1,h2,h3,p{margin-top:0;overflow-wrap:break-word}h1,h2,h3{text-wrap:balance}::selection{background:var(--lime);color:var(--on-lime)}[hidden]{display:none!important}:focus-visible{outline:3px solid var(--accent);outline-offset:5px}.container{width:min(var(--max),calc(100% - 80px));margin-inline:auto}.sr-only{position:absolute!important;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.skip-link{position:fixed;left:20px;top:12px;z-index:200;transform:translateY(-200%);background:var(--lime);color:var(--on-lime);padding:12px 20px}.skip-link:focus{transform:none}.aurora,.grid-noise{display:none}
/* Floating navigation */
.nav{position:sticky;top:16px;z-index:50;margin:16px auto 0;width:min(1400px,calc(100% - 40px));border:1px solid var(--line);border-radius:22px;background:var(--nav);backdrop-filter:blur(20px);box-shadow:0 8px 30px #0000000a,inset 0 1px var(--edge)}.nav-inner{width:calc(100% - 40px);min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;font-size:1.4rem;font-weight:750;letter-spacing:-.04em;flex-shrink:0}.brand-mark{background:var(--lime);color:var(--on-lime);width:40px;height:40px;border-radius:13px;display:grid;place-items:center;font:700 1rem/1 ui-monospace,monospace;box-shadow:inset 0 2px 2px #ffffff66,0 4px 0 color-mix(in srgb,var(--accent) 25%,var(--bg))}.nav-links{display:flex;align-items:center;gap:24px}.nav-links a{text-decoration:none;color:var(--muted);font-size:.875rem;font-weight:600;padding:13px 0}.nav-links a:hover,.nav-links a[aria-current]{color:var(--accent)}.nav-actions{display:flex;align-items:center;gap:10px}.control{border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:14px;min-height:46px}.menu-btn{display:none;align-items:center;justify-content:center;flex-direction:column;gap:6px;width:46px;height:46px;padding:12px}.menu-btn span{width:20px;height:2px;background:currentColor;transition:transform .2s}.menu-btn[aria-expanded=true] span:first-child{transform:translateY(4px) rotate(45deg)}.menu-btn[aria-expanded=true] span:last-child{transform:translateY(-4px) rotate(-45deg)}
.theme-toggle{position:relative;display:grid;place-items:center;width:64px;height:44px;border:1px solid var(--line);border-radius:30px;background:var(--bg-2);padding:5px;color:var(--text);flex-shrink:0;box-shadow:inset 0 2px 6px #00000015}.tt-thumb{display:grid;place-items:center;width:32px;height:32px;margin-right:20px;border-radius:50%;background:var(--surface);box-shadow:0 2px 6px #0003;transition:margin .25s}.tt-thumb svg{grid-area:1/1;width:19px;height:19px}.tt-moon,.tt-star{display:none}html[data-theme=dark] .tt-sun{display:none}html[data-theme=dark] .tt-moon{display:block}html[data-theme=dark] .tt-thumb{margin-right:-20px;color:var(--accent)}
/* Hero: oversized type and a layered experience panel */
.hero{padding:90px 0 0;position:relative}.hero-grid{display:grid;grid-template-columns:1.2fr .85fr;gap:76px;align-items:center;padding-bottom:84px}.hero-grid>*{min-width:0}.eyebrow{display:inline-flex;align-items:center;gap:12px;border:1px solid var(--line);border-radius:30px;padding:8px 15px;color:var(--muted);background:var(--surface);box-shadow:0 3px 10px #00000005;font-size:.875rem;margin-bottom:28px}.status-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 14%,transparent);flex-shrink:0}.hero h1{font-size:clamp(3.5rem,5.7vw,5.65rem);line-height:1.04;letter-spacing:-.063em;font-weight:720;margin:0 0 28px;text-wrap:initial}.hero h1 .accent{display:block;color:var(--accent)}.hero-copy{font-size:1.0625rem;color:var(--muted);line-height:1.85;max-width:590px;margin-bottom:30px}.cta-row{display:flex;flex-wrap:wrap;gap:14px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:18px;border:1px solid var(--line);border-radius:15px;min-height:56px;padding:15px 24px;font-size:.9375rem;font-weight:650;text-decoration:none;transition:transform .2s,box-shadow .2s,background .2s}.btn-primary{color:var(--on-lime);border-color:var(--lime);background:var(--lime);box-shadow:inset 0 1px #ffffff88,0 5px 0 color-mix(in srgb,var(--lime) 65%,#000),0 10px 24px color-mix(in srgb,var(--accent) 13%,transparent)}.btn-primary:after{content:'↗';font-size:1.3rem}.btn-secondary{background:var(--surface);color:var(--text);box-shadow:0 4px 0 var(--line),0 8px 16px #00000005}.hero-role{font:500 .75rem/1.8 ui-monospace,monospace;color:var(--muted);margin:30px 0 0;letter-spacing:.01em}
.hero-card{position:relative;isolation:isolate;padding:30px;border:1px solid var(--line);border-radius:30px;background:var(--surface);box-shadow:var(--shadow),inset 0 1px var(--edge);transform:rotate(2deg);margin:12px 10px 20px 0}.hero-card:before,.hero-card:after{content:'';position:absolute;inset:0;border:1px solid var(--line);border-radius:inherit;z-index:-1;pointer-events:none}.hero-card:before{background:color-mix(in srgb,var(--accent) 16%,var(--bg));transform:rotate(-6deg) translate(-8px,10px);box-shadow:0 16px 24px #00000010}.hero-card:after{background:linear-gradient(135deg,color-mix(in srgb,var(--lime) 10%,var(--surface)),var(--surface) 65%);box-shadow:inset 0 1px var(--edge)}.card-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:20px;border-bottom:1px solid var(--line);font:500 .75rem/1.5 ui-monospace,monospace;letter-spacing:.05em;color:var(--muted)}.card-topline span:last-child{color:var(--accent);font-size:1.4rem}.experience{display:flex;align-items:center;gap:28px;padding:26px 0 30px}.experience strong{font-size:9.5rem;line-height:1;font-weight:700;letter-spacing:-.095em;color:var(--accent);text-shadow:0 3px 0 color-mix(in srgb,var(--accent) 40%,var(--bg)),0 12px 30px color-mix(in srgb,var(--accent) 15%,transparent)}.experience>span{max-width:130px;color:var(--muted);font-size:1rem;line-height:1.6}.system-list{display:grid;gap:9px}.system-item{display:grid;grid-template-columns:90px 1fr;align-items:center;gap:14px;padding:12px 14px;background:var(--bg);border:1px solid var(--line);border-radius:12px;box-shadow:inset 0 1px 3px #00000004}.system-item strong{font-size:.875rem;font-weight:650;color:var(--accent)}.system-item span{font-size:.875rem;line-height:1.5;text-align:right;color:var(--muted)}.card-signature{display:flex;justify-content:space-between;align-items:center;gap:14px;padding-top:22px;font:500 .75rem/1.5 ui-monospace,monospace;color:var(--muted)}.card-signature b{font-size:1.2rem;color:var(--accent)}
.stack-strip{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:28px 0;border-block:1px solid var(--line)}.stack-caption{font-size:.875rem;color:var(--muted);max-width:175px;line-height:1.5}.stack-tools{display:flex;flex-wrap:wrap;gap:20px 35px;align-items:center}.stack-tools span{font-size:1.15rem;font-weight:650;letter-spacing:-.035em}.stack-tools span:before{content:'/';color:var(--accent);margin-right:12px;font-weight:400}
/* Section rhythm, raised cards and inset chips */
.section{padding:105px 0}.section-head{display:grid;grid-template-columns:1.1fr .85fr;align-items:end;gap:100px;margin-bottom:44px}.kicker{color:var(--accent);font:600 .8125rem/1.6 ui-monospace,monospace;margin-bottom:18px}.section h2{font-size:clamp(2.2rem,3.7vw,3.7rem);font-weight:650;letter-spacing:-.05em;line-height:1.13;margin:0;max-width:750px}.section-head p{color:var(--muted);line-height:1.8;margin:0;max-width:500px}.grid-2,.grid-3,.grid-4{display:grid;gap:22px;grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card,.tech-card,.form{min-width:0;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:30px;box-shadow:inset 0 1px var(--edge),0 4px 0 color-mix(in srgb,var(--line) 60%,var(--bg)),0 14px 35px #00000005;transition:transform .25s,border-color .25s,box-shadow .25s}.card h3{font-size:1.25rem;font-weight:650;letter-spacing:-.025em;line-height:1.35;margin:0 0 12px}.card p{font-size:1rem;color:var(--muted);line-height:1.8;margin:0}.icon{display:grid;place-items:center;border-radius:16px;width:54px;height:54px;color:var(--accent);background:var(--bg-2);border:1px solid var(--line);box-shadow:inset 0 1px var(--edge),0 4px 0 var(--line);margin-bottom:30px;font-size:1.7rem}.icon svg,.service-icon svg{width:24px;height:24px}.tech-card{padding:26px;position:relative;overflow:hidden}.tech-card:before{content:'';position:absolute;inset:0 26px auto;height:3px;background:var(--accent);opacity:.7}.tech-card h3{font-size:1.1rem;font-weight:650;margin:12px 0 24px;letter-spacing:-.025em}.pill-wrap,.tags{display:flex;flex-wrap:wrap;gap:9px}.pill{font-size:.875rem;line-height:1.5;padding:7px 10px;border-radius:9px;border:1px solid var(--line);background:var(--bg);color:var(--muted);overflow-wrap:anywhere}
#services .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.service-card{position:relative;display:grid;grid-template-columns:56px 1fr;gap:0 24px;padding:30px}.service-icon{grid-row:1/3;display:grid;place-items:center;width:56px;height:56px;border:1px solid var(--line);background:var(--bg-2);color:var(--accent);border-radius:17px;box-shadow:0 4px 0 var(--line),inset 0 1px var(--edge)}.service-card p{grid-column:2}.service-card h3{padding-right:26px}.service-card .service-number{position:absolute;top:18px;right:20px;opacity:.7;font-size:.75rem}.service-number{font:500 .8125rem/1.5 ui-monospace,monospace;color:var(--accent)}
/* Project typography: clear demo labels, no invented client screenshots */
.project{padding:0;overflow:hidden;display:flex;flex-direction:column;--project-ink:#223d36;--project-tint:#d5f1db}.project:nth-child(2){--project-ink:#723d24;--project-tint:#f7ddc5}.project:nth-child(3){--project-ink:#343978;--project-tint:#dfe3ff}.project:nth-child(4){--project-ink:#235163;--project-tint:#cdecf2}.project-top{position:relative;isolation:isolate;min-height:270px;padding:28px 32px;display:flex;flex-direction:column;justify-content:space-between;gap:48px;background:var(--project-tint);color:var(--project-ink);border-bottom:1px solid var(--line)}.project-top:before{content:attr(data-index);position:absolute;right:12px;bottom:-24px;font-size:14rem;font-weight:800;letter-spacing:-.1em;line-height:1;color:var(--project-ink);opacity:.07;z-index:-1}.project-top:after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(135deg,#ffffff66,transparent 50%),repeating-linear-gradient(0deg,transparent 0 39px,#ffffff35 39px 40px),repeating-linear-gradient(90deg,transparent 0 39px,#ffffff35 39px 40px)}.project-index{display:flex;justify-content:space-between;align-items:center;gap:16px;font:500 .75rem/1.5 ui-monospace,monospace}.project-index span:last-child{padding:5px 10px;border:1px solid #0002;border-radius:20px;background:#ffffff50;text-align:right}.project-display{max-width:400px;font-size:clamp(2rem,3.1vw,3rem);font-weight:650;letter-spacing:-.055em;line-height:1.1;overflow-wrap:anywhere}.project-body{padding:30px 32px;display:flex;flex-direction:column;flex:1}.project-body h3{margin-top:12px}.project-body p{margin-bottom:25px}.tags{margin-top:auto}.tag{font-size:.8125rem;padding:5px 10px;background:var(--bg);color:var(--muted);border:1px solid var(--line);border-radius:8px}
/* Contact: a distinct inset surface */
#contact>.container{padding:56px;border:1px solid var(--line);border-radius:36px;background:linear-gradient(125deg,color-mix(in srgb,var(--lime) 10%,var(--surface)),var(--surface) 70%);box-shadow:var(--shadow),inset 0 1px var(--edge)}#contact .section-head{gap:60px}#contact h2{font-size:clamp(2.5rem,4.5vw,4.6rem)}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px;align-items:start}.contact-panel{min-width:0;padding:25px 0}.contact-panel h3{font-size:1.25rem;font-weight:600}.contact-item{padding:18px 0;border-bottom:1px solid var(--line)}.contact-item small{display:block;font-size:.875rem;color:var(--muted);margin-bottom:8px}.contact-item a{display:inline-block;min-height:44px;font-size:clamp(1rem,1.65vw,1.3rem);letter-spacing:-.02em;overflow-wrap:anywhere;text-decoration:none}.contact-item a:hover{color:var(--accent)}.socials{display:flex;gap:12px;margin-top:24px}.social{display:grid;place-items:center;width:48px;height:48px;border:1px solid var(--line);border-radius:15px;text-decoration:none;background:var(--surface)}.form{padding:28px;box-shadow:inset 0 2px 8px #00000004;background:var(--bg)}.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.field{display:grid;gap:8px;min-width:0}.field.full{grid-column:1/-1}.field label{font-size:.875rem;font-weight:600}.field input,.field select,.field textarea{width:100%;min-width:0;min-height:52px;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--text);font-size:1rem;box-shadow:inset 0 2px 3px #00000003}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}.field textarea{min-height:150px;resize:vertical}.field textarea::placeholder{color:var(--muted);opacity:.8}.form .btn{width:100%;margin-top:24px}.form-note{font-size:.875rem;color:var(--muted);margin:20px 0 0;line-height:1.6}.form-status{margin-top:20px;overflow-wrap:anywhere;color:var(--accent)}.form-status[data-state=error]{color:#b93830}html[data-theme=dark] .form-status[data-state=error]{color:#ffaaa4}.footer{padding:40px 0 55px;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:55px}.footer-links{display:flex;flex-wrap:wrap;gap:8px 22px}.footer-links a{font-size:.875rem;color:var(--muted);text-decoration:none;padding:10px 0}.copyright{font-size:.8125rem;color:var(--muted);margin:20px 0 0}.reveal{opacity:1}.reveal.visible{animation:enter .6s both}.hero-card.visible{animation:none}.delay-1{animation-delay:.05s!important}.delay-2{animation-delay:.1s!important}@keyframes enter{from{opacity:.5;translate:0 18px}to{opacity:1;translate:0 0}}
@media(hover:hover) and (pointer:fine){.btn:hover{transform:translateY(-2px)}.card:hover,.tech-card:hover{transform:translateY(-5px);border-color:color-mix(in srgb,var(--accent) 55%,var(--line));box-shadow:inset 0 1px var(--edge),0 5px 0 var(--line),0 24px 42px #0000000d}}
@media(max-width:1199px){.nav-links{display:none}.menu-btn{display:flex}.nav-links.mobile{display:flex;position:absolute;top:calc(100% + 10px);left:0;right:0;flex-direction:column;align-items:stretch;gap:4px;padding:12px;background:var(--surface);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);max-height:calc(100dvh - 130px);overflow:auto}.nav-links.mobile a{padding:14px 18px;border-radius:12px;font-size:1rem}.nav-links.mobile a:hover{background:var(--bg-2)}.hero-grid{gap:45px;grid-template-columns:1.1fr .9fr}.hero-card{padding:25px}.hero h1{font-size:clamp(3.3rem,5.8vw,4.8rem)}.experience{gap:22px}.experience strong{font-size:7.5rem}.system-item{grid-template-columns:1fr;gap:3px}.system-item span{text-align:left}.section-head{gap:45px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.stack-tools{gap:18px 24px}#contact>.container{padding:36px}.contact-grid{gap:28px}}
@media(max-width:800px){.container{width:calc(100% - 40px)}.nav{top:10px;margin-top:10px;width:calc(100% - 24px);border-radius:18px}.nav-inner{min-height:68px;width:calc(100% - 24px);gap:12px}.hero{padding-top:54px}.hero-grid{grid-template-columns:1fr;gap:40px;padding-bottom:50px}.hero h1{font-size:clamp(3.15rem,8.8vw,4.8rem);max-width:660px;line-height:1.06}.hero-copy{max-width:620px;font-size:1rem}.hero-card{margin:10px 9px 16px;display:grid;grid-template-columns:.8fr 1.2fr;gap:0 25px;padding:25px;transform:none}.hero-card:before{transform:rotate(-3deg) translate(-4px,5px)}.card-topline,.card-signature{grid-column:1/-1}.experience{flex-direction:column;align-items:flex-start;justify-content:center;gap:10px;padding:22px 0}.experience strong{font-size:7rem}.experience>span{max-width:150px;font-size:.9375rem}.system-list{padding-top:20px;gap:7px}.system-item{padding:9px 12px}.system-item strong,.system-item span{font-size:.875rem}.stack-strip{flex-direction:column;align-items:flex-start;gap:18px;padding:25px 0}.stack-caption{max-width:none}.stack-tools{gap:15px 25px}.stack-tools span{font-size:1rem}.section{padding:70px 0}.section-head{grid-template-columns:1fr;gap:20px;margin-bottom:30px}.section h2{font-size:clamp(2.1rem,6.5vw,3.3rem)}.section-head p{max-width:650px}.grid-3{grid-template-columns:1fr;gap:18px}.grid-3 .card{display:grid;grid-template-columns:54px 1fr;gap:0 24px}.grid-3 .icon{grid-row:1/3;margin:0}.grid-3 .card p{grid-column:2}.grid-2{gap:20px}.project-top{padding:24px;min-height:240px}.project-display{font-size:2rem}.project-body{padding:24px}.service-card{padding:26px;gap:0 20px}.service-card h3{padding-right:10px}.contact-grid{grid-template-columns:1fr;gap:28px}.contact-panel{padding:0}.footer-grid{grid-template-columns:1fr;gap:25px}}
@media(max-width:600px){html{scroll-padding-top:110px}.brand{font-size:1.2rem;gap:9px}.brand-mark{width:34px;height:34px;font-size:.875rem}.nav-actions{gap:7px}.theme-toggle{display:none}.nav-inner{gap:8px}.hero{padding-top:42px}.eyebrow{font-size:.8125rem;margin-bottom:24px}.hero h1{font-size:clamp(2.65rem,10.8vw,4rem);letter-spacing:-.05em}.hero-copy{line-height:1.8}.cta-row{gap:14px}.cta-row .btn{flex:1 1 140px;padding:14px 16px;gap:12px}.hero-role{margin-top:25px}.hero-grid{gap:30px}.hero-card{padding:20px;gap:0 18px}.experience strong{font-size:6.2rem}.card-topline{font-size:.75rem;letter-spacing:0;padding-bottom:16px}.system-item{padding:8px 10px}.experience>span{font-size:.875rem}.stack-tools{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));width:100%;gap:16px 10px}.stack-tools span{font-size:.875rem;letter-spacing:-.02em}.stack-tools span:before{margin-right:7px}.section{padding:58px 0}.section h2{font-size:2.25rem}.grid-4,.grid-2,#services .grid-4{grid-template-columns:1fr}.card,.tech-card{padding:25px}.grid-3 .card{grid-template-columns:44px 1fr;gap:0 18px}.icon{width:44px;height:44px;border-radius:13px}.service-card{grid-template-columns:44px 1fr;gap:0 18px}.service-icon{width:44px;height:44px;border-radius:13px}.card h3{font-size:1.1875rem}.service-card .service-number{top:14px;right:16px}.project{padding:0}.project-top{min-height:235px;padding:25px}.project-display{font-size:2.25rem}.project-body{padding:25px}.project-top:before{font-size:12rem}.project-index{gap:12px}.project-index span:last-child{max-width:80%}#contact>.container{padding:27px 20px;border-radius:26px}#contact h2{font-size:2.65rem}#contact .section-head{gap:20px}.form{padding:20px;border-radius:20px}.fields{grid-template-columns:1fr;gap:18px}.field textarea{min-height:155px}.contact-item a{font-size:1.0625rem}.footer{padding:30px 0}.footer-links{gap:4px 20px}}
@media(max-width:359px){.container{width:calc(100% - 32px)}.nav .brand span:last-child{display:none}.hero h1{font-size:2.65rem}.hero-card{grid-template-columns:1fr}.experience{flex-direction:row;align-items:center;gap:24px}.system-list{padding-top:0}.system-item{grid-template-columns:80px 1fr}.system-item span{text-align:right}.cta-row .btn{flex-basis:100%}.section h2{font-size:2rem}.grid-3 .card,.service-card{display:block}.icon,.service-icon{margin-bottom:22px}.stack-tools{grid-template-columns:repeat(2,minmax(0,1fr))}#contact>.container{padding:25px 16px}.form{padding:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}.reveal{opacity:1;translate:none}}
/* --- 2. color palettes (Material-3 style roles: surface / on-surface / primary / on-primary) --- */
:root{--on-lime:#17220d}

html[data-palette=lime]{--bg:#f6f7f2;--bg-2:#eef0e8;--surface:#fff;--text:#1b201a;--muted:#5c6459;--line:#dce1d5;--accent:#3f5d12;--lime:#d3fa85;--on-lime:#17220d;--nav:rgba(246,247,242,.94)}
html[data-theme=dark][data-palette=lime]{--bg:#111410;--bg-2:#181c16;--surface:#1e231b;--text:#f3f5ed;--muted:#abb3a4;--line:#343b2e;--accent:#d3fa85;--lime:#d3fa85;--on-lime:#17220d;--nav:rgba(17,20,16,.94)}

html[data-palette=indigo]{--bg:#f6f7fc;--bg-2:#ecf0fa;--surface:#fff;--text:#161a2b;--muted:#565d79;--line:#dce0ef;--accent:#38499f;--lime:#c9d2ff;--on-lime:#101641;--nav:rgba(246,247,252,.94)}
html[data-theme=dark][data-palette=indigo]{--bg:#0e1020;--bg-2:#151829;--surface:#1b1f33;--text:#eef0fb;--muted:#a7adc8;--line:#2e3450;--accent:#b3c0ff;--lime:#b3c0ff;--on-lime:#0e1436;--nav:rgba(14,16,32,.94)}

html[data-palette=ocean]{--bg:#f2f8f9;--bg-2:#e5f1f3;--surface:#fff;--text:#0f2120;--muted:#4d6567;--line:#d2e3e5;--accent:#0a5f68;--lime:#a8ece9;--on-lime:#032223;--nav:rgba(242,248,249,.94)}
html[data-theme=dark][data-palette=ocean]{--bg:#091416;--bg-2:#0f1c1f;--surface:#142428;--text:#e9f5f4;--muted:#9db4b5;--line:#24393d;--accent:#79e2dc;--lime:#79e2dc;--on-lime:#04201f;--nav:rgba(9,20,22,.94)}

html[data-palette=violet]{--bg:#f9f6fd;--bg-2:#f1ecfa;--surface:#fff;--text:#1d1730;--muted:#5f5777;--line:#e4dcf1;--accent:#61389f;--lime:#e0d2ff;--on-lime:#22103f;--nav:rgba(249,246,253,.94)}
html[data-theme=dark][data-palette=violet]{--bg:#120f1c;--bg-2:#191426;--surface:#201a30;--text:#f2eefb;--muted:#b1a7c6;--line:#362d4d;--accent:#cbb2ff;--lime:#cbb2ff;--on-lime:#21123f;--nav:rgba(18,15,28,.94)}

html[data-palette=sunset]{--bg:#fdf8f3;--bg-2:#f8efe4;--surface:#fff;--text:#261a10;--muted:#6d5a46;--line:#ecdfd0;--accent:#8f4d12;--lime:#ffd8a8;--on-lime:#2e1a06;--nav:rgba(253,248,243,.94)}
html[data-theme=dark][data-palette=sunset]{--bg:#17110b;--bg-2:#1f1811;--surface:#271e15;--text:#f9f0e6;--muted:#c0ad99;--line:#3d3122;--accent:#ffbf6b;--lime:#ffbf6b;--on-lime:#2c1a05;--nav:rgba(23,17,11,.94)}

.aurora{background:radial-gradient(ellipse at 65% 35%,color-mix(in srgb,var(--accent) 16%,transparent),transparent 62%)}

/* --- 3. dropdown component --- */
.dd{position:relative;display:inline-flex}
.dd-btn{display:inline-flex;align-items:center;gap:10px;min-height:46px;padding:0 12px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:12px;font-size:.875rem;font-weight:600;letter-spacing:.01em;transition:background .2s,border-color .2s}
.dd-btn:hover{background:var(--bg-2)}
.dd-btn[aria-expanded=true]{border-color:var(--accent)}
.dd-btn .caret{width:9px;height:9px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:translateY(-2px) rotate(45deg);transition:transform .2s;flex:none}
.dd-btn[aria-expanded=true] .caret{transform:translateY(1px) rotate(-135deg)}
.dd-icon{width:20px;height:20px;flex:none;display:grid;place-items:center}
.dd-icon svg{width:20px;height:20px}
.dd-panel{position:absolute;top:calc(100% + 10px);right:0;z-index:90;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);max-height:min(66vh,460px);overflow:auto;animation:dd-in .16s ease-out}
@keyframes dd-in{from{opacity:0;translate:0 -6px}to{opacity:1;translate:0 0}}
.dd-panel[hidden]{display:none!important}
.dd-group{padding:6px 8px 2px;font:600 .6875rem/1.4 ui-monospace,monospace;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.dd-opt{display:flex;align-items:center;gap:12px;width:100%;min-height:42px;padding:8px 12px;border:0;background:transparent;color:var(--text);border-radius:11px;font-size:.9375rem;font-weight:550;text-align:left;transition:background .15s}
.dd-opt:hover{background:var(--bg-2)}
.dd-opt[aria-pressed=true]{background:var(--bg-2)}
.dd-opt[aria-pressed=true] .tick{opacity:1}
.dd-opt .tick{margin-left:auto;color:var(--accent);opacity:0;font-weight:700;flex:none}
.dd-list{display:grid;gap:4px}

/* language dropdown */
.dd-lang .dd-btn{padding:0 12px}
.dd-lang .dd-panel{min-width:230px}
.dd-lang .dd-list{grid-template-columns:repeat(2,minmax(0,1fr))}
.dd-lang .dd-opt{padding:8px 10px;gap:10px;font-size:.875rem}
.dd-lang .dd-opt .tick{display:none}
.dd-lang .dd-opt[aria-pressed=true]{background:var(--lime);color:var(--on-lime)}
.flag{width:22px;height:15px;border-radius:3px;flex:none;box-shadow:0 0 0 1px #00000026;display:block}
.lang-code{font-weight:700;letter-spacing:.04em}

/* appearance dropdown */
.dd-appearance .dd-panel{min-width:286px;display:grid;gap:6px}
.seg{display:grid;grid-template-columns:1fr 1fr;gap:6px;padding:4px;background:var(--bg-2);border-radius:12px;margin:2px 0 6px}
.seg button{border:0;background:transparent;color:var(--muted);border-radius:9px;min-height:38px;font-size:.875rem;font-weight:600;display:flex;align-items:center;justify-content:center;gap:8px;transition:background .2s,color .2s}
.seg button[aria-pressed=true]{background:var(--surface);color:var(--text);box-shadow:0 2px 8px #0000001a}
.seg svg{width:17px;height:17px;flex:none}
.swatches{display:flex;gap:10px;flex-wrap:wrap;justify-content:space-between;padding:4px 6px 8px}
.swatch{width:38px;height:38px;padding:0;border-radius:50%;border:2px solid var(--line);display:grid;place-items:center;transition:transform .2s,border-color .2s}
.swatch:hover{transform:scale(1.08)}
.swatch[aria-pressed=true]{border-color:var(--accent)}
.swatch i{width:24px;height:24px;border-radius:50%;display:block}
.sw-lime{background:linear-gradient(135deg,#3f5d12,#d3fa85)}
.sw-indigo{background:linear-gradient(135deg,#38499f,#c9d2ff)}
.sw-ocean{background:linear-gradient(135deg,#0a5f68,#a8ece9)}
.sw-violet{background:linear-gradient(135deg,#61389f,#e0d2ff)}
.sw-sunset{background:linear-gradient(135deg,#8f4d12,#ffd8a8)}

/* --- 4. animated backgrounds --- */
.bg-layer{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;contain:strict}
html{background:var(--bg)}
body{background:transparent}
.aurora{display:none}
.section.alt{background:color-mix(in srgb,var(--bg-2) 74%,transparent)}
#contact{background:transparent}
.card,.tech-card,.form,.hero-card{background:color-mix(in srgb,var(--surface) 88%,transparent);backdrop-filter:blur(7px)}
#about .card{background:transparent;backdrop-filter:none}
.footer{background:color-mix(in srgb,var(--bg) 70%,transparent)}

/* 4a. gradient (default) — layered mesh in theme colors, slowly breathing */
.gradient{position:absolute;inset:-15%;background:
 radial-gradient(52% 46% at 16% 10%,color-mix(in srgb,var(--accent) 26%,transparent),transparent 70%),
 radial-gradient(48% 44% at 84% 18%,color-mix(in srgb,var(--lime) 30%,transparent),transparent 72%),
 radial-gradient(60% 52% at 72% 82%,color-mix(in srgb,var(--accent) 20%,transparent),transparent 74%),
 radial-gradient(46% 40% at 22% 78%,color-mix(in srgb,var(--lime) 18%,transparent),transparent 72%),
 linear-gradient(158deg,var(--bg) 0%,var(--bg-2) 48%,var(--bg) 100%);
 filter:blur(26px);animation:mesh 30s ease-in-out infinite alternate}
@keyframes mesh{from{transform:scale(1) translate3d(0,0,0)}to{transform:scale(1.09) translate3d(-2.5%,-2%,0)}}

/* 4b. galaxies — ~10 slowly turning spirals in the current palette */
.space{position:absolute;inset:0;perspective:1600px}
.space:before{content:'';position:absolute;inset:0;background:radial-gradient(68% 58% at 26% 16%,color-mix(in srgb,var(--accent) 12%,transparent),transparent 70%),radial-gradient(58% 54% at 80% 76%,color-mix(in srgb,var(--lime) 10%,transparent),transparent 72%);filter:blur(36px)}
.stars,.stars2{position:absolute;inset:-50%;background-image:radial-gradient(1.5px 1.5px at 20% 30%,var(--text),transparent),radial-gradient(1.3px 1.3px at 70% 60%,var(--text),transparent),radial-gradient(1.6px 1.6px at 40% 80%,var(--accent),transparent),radial-gradient(1.2px 1.2px at 85% 20%,var(--text),transparent),radial-gradient(1.4px 1.4px at 12% 70%,var(--text),transparent),radial-gradient(1.3px 1.3px at 55% 15%,var(--accent),transparent);background-size:360px 360px;opacity:.3;animation:drift 140s linear infinite}
.stars2{background-size:540px 540px;opacity:.18;animation-duration:230s;animation-direction:reverse}
@keyframes drift{to{transform:translate3d(-360px,-360px,0)}}
.galaxy{position:absolute;left:var(--x);top:var(--y);width:var(--w);height:var(--w);margin:calc(var(--w)/-2) 0 0 calc(var(--w)/-2);border-radius:50%;opacity:var(--o,.5);transform:rotateX(var(--tilt,40deg)) rotateZ(var(--roll,0deg));animation:spin var(--d,180s) linear infinite;background:radial-gradient(circle at 50% 50%,color-mix(in srgb,var(--lime) 26%,transparent) 0 6%,color-mix(in srgb,var(--accent) 16%,transparent) 16%,color-mix(in srgb,var(--accent) 7%,transparent) 34%,transparent 62%);filter:blur(.4px)}
.galaxy svg{width:100%;height:100%;display:block;overflow:visible}
.galaxy.ccw{animation-direction:reverse}
@keyframes spin{to{rotate:360deg}}
@media(max-width:760px){.galaxy{filter:blur(calc(var(--w)/20))}}

/* 4c. dna */
.dna{position:absolute;left:50%;top:50%;translate:-50% -50%;width:340px;height:min(105vh,900px);transform-style:preserve-3d;perspective:900px}
.dna .rung{position:absolute;left:50%;width:250px;height:5px;margin-left:-125px;transform-style:preserve-3d;animation:helix 6s linear infinite}
.dna .rung:before{content:'';position:absolute;inset:0 26px;height:3px;top:1px;border-radius:3px;background:linear-gradient(90deg,color-mix(in srgb,var(--accent) 60%,transparent),color-mix(in srgb,var(--lime) 60%,transparent));opacity:.55}
.dna .rung i{position:absolute;top:50%;width:15px;height:15px;margin-top:-7.5px;border-radius:50%;background:var(--accent);box-shadow:0 0 18px 2px color-mix(in srgb,var(--accent) 45%,transparent)}
.dna .rung i:first-child{left:0}
.dna .rung i:last-child{right:0;background:var(--lime);box-shadow:0 0 18px 2px color-mix(in srgb,var(--lime) 45%,transparent)}
@keyframes helix{to{transform:rotateY(360deg)}}
@media(max-width:760px){.dna{width:230px}.dna .rung{width:172px;margin-left:-86px}.dna .rung i{width:12px;height:12px;margin-top:-6px}}

@media(prefers-reduced-motion:reduce){.stars,.stars2,.galaxy,.dna .rung,.gradient{animation:none!important}}
/* Final surface and control roles; keep all five user-selectable palettes. */
html[data-palette=lime]{--bg:#f5f7f7;--bg-2:#eaf0ee;--text:#182421;--muted:#53675e;--line:#d6e2dc;--accent:#326148;--lime:#d0f79b;--nav:#f5f7f7ed}
html[data-theme=dark][data-palette=lime]{--bg:#0e1417;--bg-2:#141d21;--surface:#1a252a;--text:#f0f5f4;--muted:#a7b9b6;--line:#2e3e41;--accent:#cef69a;--lime:#cef69a;--nav:#111b20ed}
.card,.tech-card,.form,.hero-card{backdrop-filter:none}.card,.tech-card,#about .card{background:var(--surface)}.form{background:var(--bg)}.hero-card{background:var(--surface)}.section.alt{background:color-mix(in srgb,var(--bg-2) 65%,transparent);border-block:1px solid var(--line)}#contact{border:0;background:transparent}.gradient{opacity:.65;filter:none}.dd-btn{min-height:46px;border-radius:14px;box-shadow:inset 0 1px var(--edge)}.dd-panel{padding:14px;border-radius:20px;box-shadow:0 22px 60px #0003,inset 0 1px var(--edge);max-height:min(70dvh,520px)}.dd-group{font-size:.75rem;letter-spacing:.04em;padding:8px 8px 5px}.dd-opt,.seg button{min-height:46px}.swatch{width:44px;height:44px;background:var(--bg)}.swatch[aria-pressed=true]{box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 12%,transparent)}.dd-lang .dd-panel{width:300px}.dd-lang .dd-list{grid-template-columns:1fr}.dd-lang .dd-opt{padding:10px 12px}.language-name{font-weight:450;font-size:.875rem;color:inherit}.dd-lang .lang-code{min-width:26px}.dd-appearance .dd-panel{width:310px}.seg{padding:5px}.seg button{line-height:1.3}.bg-layer{opacity:.7}.galaxy{filter:none}
@media(max-width:800px){.gradient{animation:none}.galaxy{filter:none}.bg-layer{opacity:.4}.dd-panel{max-height:calc(100dvh - 118px)}}
@media(max-width:600px){.dd-btn{padding:0 10px;gap:8px}.dd-lang .dd-btn{padding:0 10px}.dd-appearance .dd-btn{width:46px;padding:0;justify-content:center}.dd-appearance .dd-btn>.caret{display:none}.dd-panel,.dd-lang .dd-panel,.dd-appearance .dd-panel{position:fixed;top:88px;left:12px;right:12px;width:auto;min-width:0;max-height:calc(100dvh - 108px)}.dd-lang .dd-list{grid-template-columns:repeat(2,minmax(0,1fr))}.dd-lang .dd-opt{gap:7px;padding:10px 8px}.dd-lang .dd-opt .lang-code{display:none}.swatches{justify-content:flex-start;gap:14px}}
@media(max-width:359px){.dd-lang .dd-list{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}html{scroll-behavior:auto}}
@media print{.nav,.bg-layer,.aurora,.cta-row,.form,.socials{display:none!important}.hero,.section{padding:24px 0}.container{width:100%}.hero-card{transform:none}.card,.hero-card,.tech-card{break-inside:avoid;box-shadow:none}}
/* Long translations and enlarged text must not expand grid tracks. */
.hero-card>*{min-width:0}.card-topline>span,.system-item>*{min-width:0;overflow-wrap:anywhere}.experience strong{flex-shrink:0}.experience>span{min-width:0;overflow-wrap:anywhere}.system-item{grid-template-columns:minmax(0,1fr) minmax(0,2fr)}
@media(max-width:1199px){.system-item{grid-template-columns:minmax(0,1fr)}}
@media(max-width:800px){.hero-card{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr)}.experience strong{font-size:min(7rem,23vw)}}
@media(max-width:600px){.hero-card{grid-template-columns:repeat(auto-fit,minmax(min(100%,8rem),1fr))}.experience strong{font-size:min(6.2rem,25vw)}.card-topline{flex-wrap:wrap}.card-signature{flex-wrap:wrap}.nav .brand{min-width:0;flex-shrink:1}.nav .brand>span:last-child{overflow-wrap:anywhere}.language-name{overflow-wrap:anywhere}}
@media(max-width:359px){.hero-card{grid-template-columns:minmax(0,1fr)}.experience strong{font-size:min(6.2rem,28vw)}.system-item{grid-template-columns:minmax(0,1fr)}.system-item span{text-align:left}}
h1,h2,h3,p{overflow-wrap:anywhere}.section-head>*,.contact-grid>*,.footer-grid>*,.service-card>*,.grid-3 .card>*{min-width:0}
@media(max-width:600px){.service-card{grid-template-columns:44px minmax(0,1fr)}.grid-3 .card{grid-template-columns:44px minmax(0,1fr)}}
@media(max-width:600px){.brand-mark{font-size:14px}.stack-tools{grid-template-columns:repeat(auto-fit,minmax(min(100%,6rem),1fr))}.stack-tools span{overflow-wrap:anywhere}.hero-card:before{transform:translate(-5px,8px)}}
/* v3.1: keep names and controls intact; let the header reflow as a unit. */
.nav-inner{flex-wrap:wrap;padding-block:10px;row-gap:10px}.brand,.nav .brand{flex-shrink:0;white-space:nowrap;overflow-wrap:normal}.brand-mark,.nav-actions,.nav-actions>*{flex-shrink:0}.brand>span:last-child,.nav .brand>span:last-child{white-space:nowrap;overflow-wrap:normal;word-break:normal}.lang-code{white-space:nowrap}.nav-actions{margin-left:auto}.nav-links.mobile{max-height:calc(100dvh - var(--nav-height,90px) - 45px)}html{scroll-padding-top:calc(var(--nav-height,90px) + 35px)}
@media(max-width:600px){.dd-lang .dd-btn>.caret{display:none}.nav .brand span:last-child{display:inline}.dd{position:static}.dd-panel,.dd-lang .dd-panel,.dd-appearance .dd-panel{position:absolute;top:calc(100% + 10px);left:0;right:0;max-height:calc(100dvh - var(--nav-height,90px) - 45px)}.nav-inner{gap:10px 8px}.nav-actions{gap:7px}}
@media(max-width:359px){.nav .brand-mark{display:none}.nav .brand span:last-child{display:inline}}
.form-trap{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.form-verification{margin-top:22px;min-width:0}.form-verification iframe{max-width:100%}.form-status a{font-weight:600}.btn{white-space:normal}.form-note a{overflow-wrap:anywhere}