@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--bg:#091322;--panel:#101e31;--surface:#14263b;--text:#f5f8ff;--muted:#a8b6c9;--accent:#79d6e6;--stroke:#26384e}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:85px}body{margin:0;background:var(--bg);color:var(--text);font-family:'DM Sans',Arial,sans-serif}a{color:inherit;text-decoration:none}button{font:inherit}.container{width:min(1160px,calc(100% - 48px));margin:auto}.skip{position:absolute;left:-10000px;top:0;z-index:99;background:white;color:#111;padding:12px}.skip:focus{left:12px}.nav-wrap{position:sticky;top:0;z-index:10;background:#091322e8;backdrop-filter:blur(18px);border-bottom:1px solid #ffffff13}.nav{min-height:78px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;flex-direction:column;gap:3px}.brand-mark{font:800 22px Manrope,sans-serif;letter-spacing:-.07em}.dot,.accent{color:var(--accent)}.brand-sub{font-size:8px;letter-spacing:.22em;color:#8ba5bd}.nav-links{display:flex;align-items:center;gap:29px}.nav-links a{font-size:12px;color:#c3ccda}.nav-links a:hover,.text-link:hover{color:var(--accent)}.lang{border:1px solid #53687f;background:transparent;color:white;border-radius:7px;padding:8px 10px;cursor:pointer;font-weight:700;font-size:11px}.menu-toggle{display:none}.hero{position:relative;overflow:hidden;padding:96px 0 36px}.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;min-height:480px;position:relative;z-index:1}.glow{position:absolute;filter:blur(72px);border-radius:100%;pointer-events:none}.glow-one{width:370px;height:370px;right:8%;top:12%;background:#1a5e8b40}.glow-two{width:260px;height:260px;right:30%;bottom:4%;background:#6060b91e}.eyebrow,.section-label,.project-no,.visual-head,.visual-bottom,.preview-tag,.coming,.scroll-note{font-size:10px;letter-spacing:.19em;font-weight:700}.eyebrow{display:flex;align-items:center;gap:12px;color:#afbdce}.signal{height:7px;width:7px;display:inline-block;border-radius:50%;background:#66d6c5;box-shadow:0 0 0 5px #66d6c51a}.hero h1,h2{font-family:Manrope,Arial,sans-serif;letter-spacing:-.065em;line-height:1.13}.hero h1{font-size:clamp(43px,5.5vw,72px);margin:30px 0 22px;max-width:700px}.hero-desc{font-size:16px;line-height:1.85;color:var(--muted);max-width:510px}.actions{display:flex;gap:12px;margin:30px 0 38px;flex-wrap:wrap}.btn{padding:15px 23px;border-radius:8px;font-size:12px;font-weight:700}.primary{color:#071522;background:#8be0e9}.primary:hover{background:#b0f1f6}.ghost{border:1px solid #43576a}.ghost:hover{background:#152b43}.hero-tags,.tech{display:flex;flex-wrap:wrap;gap:9px}.hero-tags span,.tech span{font-size:10px;padding:8px 11px;border:1px solid #3a4b5f;color:#b7c7d9;border-radius:5px}.hero-visual{background:linear-gradient(140deg,#172d43,#0c1a2c);height:400px;border:1px solid #3b5266;border-radius:14px;box-shadow:0 20px 80px #0005;overflow:hidden;display:flex;flex-direction:column}.visual-head,.visual-bottom{padding:22px;display:flex;justify-content:space-between;color:#a4c0d4;font-size:9px}.visual-pulse{color:#72dacb}.mesh-art{flex:1;display:flex;align-items:center;justify-content:center}.mesh-art svg{width:95%;height:100%}.scroll-note{padding:48px 0 0;color:#687e93;display:flex;gap:18px;align-items:center}.scroll-note span{font-size:20px}.section{padding:110px 0;border-top:1px solid #ffffff0d}.section-label{color:var(--accent);margin-bottom:22px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:100px}h2{font-size:clamp(34px,4vw,51px);margin:0}h2 em{color:var(--accent);font-style:normal}.body-stack{padding-top:30px;color:var(--muted);font-size:15px;line-height:1.9}.body-stack p:first-child{margin-top:0}.text-link{color:white;font-weight:700;font-size:12px;display:inline-block;margin-top:12px}.work{background:#0d192b}.section-head{display:flex;justify-content:space-between;align-items:end;gap:80px;margin-bottom:38px}.section-head>div{max-width:650px}.section-head>p{max-width:330px;color:var(--muted);line-height:1.7;font-size:13px}.project-grid{display:grid;grid-template-columns:1.12fr 1fr 1fr;gap:17px}.project{border:1px solid #2c4056;background:linear-gradient(145deg,#15263b,#101d30);border-radius:12px;min-height:380px;padding:23px;display:flex;flex-direction:column}.project.featured{background:linear-gradient(160deg,#1a3b54,#102236);position:relative;overflow:hidden}.project-top{display:flex;justify-content:space-between}.pill{font-size:9px;font-weight:700;letter-spacing:.12em;color:#8dcee0;border:1px solid #53768b;padding:7px 9px;border-radius:5px}.arrow{color:#82cddd}.project-content{margin-top:auto;position:relative;z-index:1}.project-content.pushed{padding-top:140px}.project-no{color:#90a6ba}.project h3{font:750 20px/1.35 Manrope,Arial,sans-serif;letter-spacing:-.035em;margin:12px 0}.project p{font-size:12px;line-height:1.8;color:#aec0d0}.project .tech span{font-size:9px;padding:6px 7px}.wave-art{height:125px;position:relative;overflow:hidden;opacity:.75}.wave{position:absolute;width:180%;height:70px;border:1.4px solid #63cce5;border-radius:50%;transform:rotate(-12deg);left:-32%;top:30px}.wave-b{top:48px;border-color:#668fff}.wave-c{top:65px;border-color:#62b4dc}.software-grid{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center}.section-copy{font-size:15px;color:var(--muted);line-height:1.85;margin:25px 0}.coming{color:#94b7cc;letter-spacing:.03em;font-size:11px;line-height:1.7;margin-top:24px}.product-shell{background:linear-gradient(150deg,#152d45,#0d1b2d);border:1px solid #456179;border-radius:16px;padding:32px;box-shadow:0 18px 65px #0004}.product-top{display:flex;justify-content:space-between;align-items:center}.product-icon{background:#203d57;border:1px solid #47718a;padding:12px;border-radius:10px;font-weight:800;font-family:Manrope}.product-icon span{color:#8de2ec}.preview-tag{color:#94b6ce}.product-name{font:800 48px Manrope;letter-spacing:-.08em;margin-top:50px}.product-name>span:first-child{color:#8bd6e5}.product-dot{color:#8bd6e5}.product-shell>p{font-size:10px;letter-spacing:.22em;color:#9fbed1;margin-top:5px}.product-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:38px 0 28px}.product-cards>div{border:1px solid #3a566e;padding:16px;border-radius:8px;display:flex;flex-direction:column;gap:10px}.product-emoji{font-size:22px;color:#8fd4e4}.product-cards strong{font-size:12px}.product-cards small{color:#94b0c6;font-size:10px}.build-badge{font-size:9px;letter-spacing:.18em;color:#b0c7d8}.tutoring{background:#0d192b}.lesson-list{display:flex;flex-direction:column;gap:0;margin:23px 0}.lesson-list span{padding:15px 0;border-bottom:1px solid #2f4253;font-size:13px;color:#dae4ef}.contact-box{background:linear-gradient(125deg,#112a3e,#0c1b2b);padding:60px;border:1px solid #2d5368;border-radius:16px}.contact h2{max-width:750px}.contact p{color:#afc0ce;max-width:550px;line-height:1.8}.contact-coming{display:flex;gap:15px;align-items:center;margin-top:25px;font-size:12px;color:#acc9d8}.footer{border-top:1px solid #ffffff16}.footer-inner{padding:32px 0;display:flex;justify-content:space-between;gap:24px;align-items:center;color:#94aabe;font-size:11px}.footer-brand{font-weight:800;letter-spacing:.08em;color:white}.footer-brand span{font-weight:400;color:#8299ae;margin-left:10px}.footer a:hover{color:var(--accent)}@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero-visual{height:310px}.two-col,.software-grid{gap:35px}.project-grid{grid-template-columns:1fr 1fr}.project.featured{grid-column:span 2}.project{min-height:290px}.section-head{align-items:start;flex-direction:column;gap:12px}.section-head>p{max-width:550px}}@media(max-width:640px){.container{width:min(100% - 32px,1160px)}.nav{min-height:70px}.menu-toggle{display:block;border:1px solid #334e68;background:#11243a;color:white;padding:7px 12px;border-radius:8px;font-size:20px}.nav-links{display:none;position:absolute;top:69px;left:0;right:0;padding:23px;background:#0d1c2c;flex-direction:column;align-items:stretch;gap:20px}.nav-links.open{display:flex}.lang{align-self:flex-start}.hero{padding:54px 0 15px}.hero h1{font-size:43px}.hero-grid{gap:20px}.hero-visual{height:260px}.section{padding:72px 0}.two-col,.software-grid{grid-template-columns:1fr;gap:20px}.body-stack{padding-top:0}.project-grid{grid-template-columns:1fr}.project.featured{grid-column:span 1}.project{min-height:300px}.project-content.pushed{padding-top:75px}.contact-box{padding:30px 23px}.footer-inner{flex-wrap:wrap}.scroll-note{padding-top:28px}}

/* v0.2: hybrid navigation + accessible appearance controls */
.theme-toggle{border:1px solid var(--stroke);background:transparent;color:var(--text);border-radius:8px;width:36px;height:35px;cursor:pointer;font-size:17px}.theme-toggle:hover,.lang:hover{border-color:var(--accent)}
.quick-explore{background:var(--quick-bg,#0d192b)}.quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.quick-card{display:flex;flex-direction:column;align-items:start;min-height:215px;padding:26px;border-radius:13px;border:1px solid var(--stroke);background:var(--quick-card,#14263b);transition:transform .2s,border-color .2s,box-shadow .2s}.quick-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:0 14px 30px #0415271e}.quick-icon{font-size:28px;color:var(--accent);line-height:1}.quick-card h3{font:800 21px Manrope,sans-serif;letter-spacing:-.04em;margin:23px 0 5px}.quick-card p{font-size:12px;color:var(--muted);margin:0}.quick-action{font-size:12px;color:var(--accent);font-weight:700;margin-top:auto;padding-top:20px}.section-cta{display:inline-flex;margin-top:25px;font-weight:700;font-size:13px;color:var(--accent);border-bottom:1px solid currentColor;padding-bottom:5px}.project{position:relative}.card-hit{position:absolute;inset:0;z-index:3;border-radius:12px}.project:hover{border-color:var(--accent)}.card-hit:focus-visible,.product-link:focus-visible,.quick-card:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.product-link{display:block}.product-link:hover{border-color:var(--accent)}
/* Light theme: airy site; large hero retains original dark navy mood and contrast. */
html[data-theme="light"]{--bg:#f4f8fc;--panel:#fff;--surface:#fff;--text:#16263e;--muted:#53687f;--accent:#226e9a;--stroke:#d6e1ec;--quick-bg:#edf4fa;--quick-card:#fff;color-scheme:light}
html[data-theme="dark"]{color-scheme:dark}
html[data-theme="light"] .nav-wrap{background:#f4f8fceF;border-bottom:1px solid #d9e4ef}
html[data-theme="light"] .nav-links a{color:#455a71}
html[data-theme="light"] .lang{color:#1a3048;border-color:#b9c9d8}
html[data-theme="light"] .brand-sub{color:#71869d}
html[data-theme="light"] .hero{background:#091322;color:#f5f8ff}
html[data-theme="light"] .hero .accent{color:#79d6e6}
html[data-theme="light"] .hero .eyebrow,html[data-theme="light"] .hero-desc{color:#a8b6c9}
html[data-theme="light"] .hero .scroll-note{color:#687e93}
html[data-theme="light"] .section{border-top-color:#dae5ef}
html[data-theme="light"] .about,html[data-theme="light"] .software,html[data-theme="light"] .contact{background:#f4f8fc}
html[data-theme="light"] .work,html[data-theme="light"] .tutoring{background:#eaf2f9}
html[data-theme="light"] .work .project{background:linear-gradient(145deg,#fff,#eaf3fa);border-color:#c7d9e7}
html[data-theme="light"] .work .project.featured{background:linear-gradient(150deg,#d8ecf5,#f8fcff)}
html[data-theme="light"] .project p,html[data-theme="light"] .project-no,html[data-theme="light"] .project .tech span{color:#53687f}
html[data-theme="light"] .pill{color:#286e99;border-color:#a9cadc}
html[data-theme="light"] .hero-tags span{color:#b7c7d9}
html[data-theme="light"] .software .tech span{color:#53687f;border-color:#bcd0df}
html[data-theme="light"] .text-link{color:#226e9a}
html[data-theme="light"] .product-shell{color:#f5f8ff}
html[data-theme="light"] .lesson-list span{color:#1b344e;border-bottom-color:#c8d7e5}
html[data-theme="light"] .contact-box{background:linear-gradient(125deg,#d8eaf4,#f5fbff);border-color:#c2d9e7}
html[data-theme="light"] .contact p,html[data-theme="light"] .contact-coming{color:#53687f}
html[data-theme="light"] .footer{border-top-color:#d5e1ec}html[data-theme="light"] .footer-inner{color:#61768b}html[data-theme="light"] .footer-brand{color:#1b314a}
html[data-theme="light"] .section h2 em{color:#226e9a}
html[data-theme="light"] .menu-toggle{color:#17314d;background:#fff;border-color:#bcd0e0}
html[data-theme="light"] .nav-links.open{background:#f4f8fc}
/* Inner-page typography and layouts */
.page-hero{padding:100px 0 65px;background:var(--page-header-bg,#0e2036);color:#f5f8ff}.page-eyebrow{font-size:11px;letter-spacing:.18em;color:#8ccee2;font-weight:700}.page-hero h1{font:800 clamp(45px,6vw,80px)/1.1 Manrope,sans-serif;letter-spacing:-.065em;max-width:840px;margin:24px 0}.page-hero p{font-size:16px;line-height:1.8;color:#b2c6d9;max-width:670px}.page-body{min-height:420px}.page-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.detail-card{background:var(--quick-card,#14263b);border:1px solid var(--stroke);padding:30px;border-radius:14px;scroll-margin-top:105px}.detail-card h2{font-size:27px;letter-spacing:-.05em;margin:12px 0}.detail-card p{font-size:14px;line-height:1.85;color:var(--muted)}.detail-card .tech span{color:var(--muted);border-color:var(--stroke)}.detail-card .pill{display:inline-block}.detail-card.full{grid-column:1/-1}.detail-note{font-size:12px;color:var(--muted);margin-top:18px}.inner-nav a:first-child{color:var(--accent)}
@media(max-width:950px){.quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.quick-grid,.page-grid{grid-template-columns:1fr}.quick-card{min-height:155px}.quick-card h3{margin:14px 0 6px}.page-hero{padding:70px 0 52px}.nav-links{background:#0d1c2c}html[data-theme="light"] .nav-links{background:#f4f8fc}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.quick-card{transition:none}}

/* v0.3: incremental additions; original hero/mesh/layout retained */
.cv-hero{color:#a9d9ed;border:1px solid #3b627b;background:transparent}.cv-hero:hover{border-color:#8dd5e8;background:#16334b}.body-stack .text-link+.text-link{margin-left:22px}.contact-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.contact-links a{border:1px solid #54768d;padding:12px 16px;border-radius:8px;color:inherit;font-size:13px;background:#ffffff08;overflow-wrap:anywhere}.contact-links a:hover{border-color:#73cfe6}.direct-contact{display:flex;flex-direction:column;gap:12px;margin-top:22px}.direct-contact a{display:flex;flex-direction:column;gap:8px;padding:17px;border:1px solid var(--stroke);border-radius:10px;overflow-wrap:anywhere}.direct-contact a:hover{border-color:var(--accent)}.direct-contact span{font-size:11px;color:var(--muted)}.direct-contact strong{font-size:15px}.release-note{margin-top:28px;padding:22px;border:1px solid var(--stroke);background:var(--quick-card,#14263b);border-radius:12px}.release-note p{font-size:13px;line-height:1.75;color:var(--muted)}.tutoring-cta{margin-top:28px;display:flex;gap:20px;align-items:center;justify-content:space-between;flex-wrap:wrap}.tutoring-cta p{color:var(--muted)}.contact .section-cta{display:table}.contact .contact-links a{color:#cde2f1}html[data-theme="light"] .contact .contact-links a{color:#21415c;border-color:#b3ccdc;background:#ffffff8a}@media(max-width:640px){.body-stack .text-link+.text-link{margin:14px 0 0}.contact-links{flex-direction:column}.cv-hero{width:fit-content}}

/* v0.3.1: Contact-detail icons; no other visual styles changed. */
.direct-contact a{flex-direction:row;align-items:center;gap:16px}
.direct-contact .contact-detail-icon{width:23px;height:23px;flex:0 0 23px;color:var(--accent)}
.direct-contact .contact-detail-copy{display:flex;flex-direction:column;gap:8px;min-width:0}

/* v0.3.2 — precise mobile UI fixes only */
.inline-arrow{display:inline-block;width:1em;height:1em;vertical-align:-.13em;stroke:currentColor;flex-shrink:0;pointer-events:none}
.home-linkedin-icon{display:inline-block;width:18px;height:18px;vertical-align:-.25em;margin-right:4px;stroke:currentColor}
.nav-actions{display:flex;align-items:center;gap:9px;order:2;margin-left:16px}
.nav-links{order:1;margin-left:auto}
@media(max-width:640px){
 .nav-actions{margin-left:auto;gap:10px}
 .nav-actions .theme-toggle{display:inline-flex;justify-content:center;align-items:center;width:42px;height:42px;font-size:21px}
 .nav-actions .menu-toggle{min-width:42px;height:42px}
 .nav-links{margin-left:0}
}

/* v0.3.3: theme appearance icons as SVG, never emoji glyphs. */
.theme-toggle .theme-icon{display:block;width:20px;height:20px;flex:none;margin:auto;pointer-events:none}