:root{
    --bg:#EEF1F8;
    --bg-2:#FFFFFF;
    --bg-3:#F6F8FD;
    --ink:#1A2030;
    --muted:#5E6783;
    --faint:#8A92A8;
    --line:rgba(26,32,48,.10);
    --line-2:rgba(26,32,48,.16);
    --c1:#16B3A2;  /* teal  */
    --c2:#6A57E0;  /* violet*/
    --c3:#E8569B;  /* pink  */
    --grad:linear-gradient(100deg,var(--c1),var(--c2) 55%,var(--c3));
    /* themed surfaces (light defaults) */
    --nav-bg:rgba(238,241,248,.82);
    --ghost-bg:rgba(26,32,48,.02);
    --wisp-bg:rgba(106,87,224,.10);
    --chip-bg:rgba(255,255,255,.9);
    --chip-shadow:rgba(26,32,48,.18);
    --marquee-bg:rgba(255,255,255,.5);
    --frame-overlay:linear-gradient(160deg,transparent 60%,rgba(26,32,48,.14));
    --track-bg:rgba(26,32,48,.08);
    --card-shadow:rgba(26,32,48,.22);
    --cat-bg:rgba(255,255,255,.85);
    --overlay:rgba(26,32,48,.42);
    --phnote-bg:rgba(255,255,255,.85);
    --ph-bg-1:#F6F8FD;
    --ph-bg-2:#E6EAF4;
    --ph-tx:rgba(26,32,48,.4);
    --blob-blend:multiply;
    --blob-op:.42;
    --display:'Space Grotesk',sans-serif;
    --body:'Manrope',sans-serif;
    --mono:'JetBrains Mono',monospace;
    --maxw:1180px;
  }
  html[data-theme="dark"]{
    --bg:#070A14;
    --bg-2:#0B1022;
    --bg-3:#131A33;
    --ink:#EAEEF9;
    --muted:#8E97B4;
    --faint:#5C6688;
    --line:rgba(255,255,255,.08);
    --line-2:rgba(255,255,255,.14);
    --c1:#5BE3D4;
    --c2:#7C6CFF;
    --c3:#FF6FAE;
    --nav-bg:rgba(7,10,20,.72);
    --ghost-bg:rgba(255,255,255,.03);
    --wisp-bg:rgba(255,255,255,.06);
    --chip-bg:rgba(11,16,34,.82);
    --chip-shadow:rgba(0,0,0,.6);
    --marquee-bg:rgba(11,16,34,.4);
    --frame-overlay:linear-gradient(160deg,transparent 55%,rgba(7,10,20,.7));
    --track-bg:rgba(255,255,255,.06);
    --card-shadow:rgba(0,0,0,.7);
    --cat-bg:rgba(7,10,20,.6);
    --overlay:rgba(4,6,12,.78);
    --phnote-bg:rgba(7,10,20,.7);
    --ph-bg-1:#121A30;
    --ph-bg-2:#0B1326;
    --ph-tx:rgba(255,255,255,.45);
    --blob-blend:screen;
    --blob-op:.5;
  }
  /* placeholder svg theming */
  .phs1{stop-color:var(--ph-bg-1)}
  .phs2{stop-color:var(--ph-bg-2)}
  .phtx{fill:var(--ph-tx)}
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth}
  body{
    background:var(--bg);
    color:var(--ink);
    font-family:var(--body);
    line-height:1.6;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
    transition:background-color .4s ease,color .4s ease;
  }
  header.nav,section,.card,.chip,.marquee,.modal,.about-photo .frame,.bar .track,
  .c-link,.btn{transition:background-color .4s ease,color .4s ease,border-color .4s ease,box-shadow .4s ease,transform .3s ease}
  ::selection{background:var(--c2);color:#fff}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}

  /* ---------- ambient page background ---------- */
  .stars{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
  .stars::before,.stars::after{content:'';position:absolute;border-radius:50%;filter:blur(90px)}
  .stars::before{width:480px;height:480px;top:-120px;right:-80px;
    background:radial-gradient(circle,rgba(106,87,224,.16),transparent 70%)}
  .stars::after{width:520px;height:520px;bottom:-160px;left:-120px;
    background:radial-gradient(circle,rgba(22,179,162,.14),transparent 70%)}

  /* ---------- scroll progress ---------- */
  .progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:100;
    background:var(--grad);box-shadow:0 0 12px rgba(124,108,255,.6)}

  /* ---------- nav ---------- */
  header.nav{position:fixed;top:0;left:0;right:0;z-index:90;
    display:flex;align-items:center;justify-content:space-between;
    padding:18px clamp(20px,5vw,48px);
    transition:background .4s,backdrop-filter .4s,padding .4s,border-color .4s;
    border-bottom:1px solid transparent}
  header.nav.scrolled{background:var(--nav-bg);backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);padding-top:12px;padding-bottom:12px}
  .brand{font-family:var(--display);font-weight:700;font-size:1.05rem;letter-spacing:.3px;
    display:flex;align-items:center;gap:10px}
  .brand .dot{width:9px;height:9px;border-radius:50%;background:var(--grad);
    box-shadow:0 0 10px var(--c1)}
  nav.links{display:flex;gap:30px}
  nav.links a{font-size:.82rem;letter-spacing:.4px;color:var(--muted);
    font-weight:500;position:relative;transition:color .25s}
  nav.links a::after{content:'';position:absolute;left:0;bottom:-6px;height:2px;width:0;
    background:var(--grad);transition:width .3s}
  nav.links a:hover{color:var(--ink)}
  nav.links a:hover::after{width:100%}
  .burger{display:none;flex-direction:column;gap:5px;cursor:pointer;padding:6px}
  .burger span{width:24px;height:2px;background:var(--ink);transition:.3s}
  .nav-right{display:flex;align-items:center;gap:14px}
  .theme-toggle{width:42px;height:42px;border-radius:50%;border:1px solid var(--line-2);
    background:var(--bg-2);color:var(--ink);cursor:pointer;display:grid;place-items:center;
    transition:background-color .3s,border-color .3s,transform .3s,color .3s}
  .theme-toggle:hover{transform:translateY(-2px) rotate(12deg);border-color:var(--c2);color:var(--c2)}
  .theme-toggle svg{width:19px;height:19px}
  .theme-toggle .ic-sun{display:none}
  html[data-theme="dark"] .theme-toggle .ic-moon{display:none}
  html[data-theme="dark"] .theme-toggle .ic-sun{display:block}

  /* ---------- layout helpers ---------- */
  section{position:relative;z-index:1;padding:clamp(80px,11vw,140px) clamp(20px,5vw,48px)}
  .wrap{max-width:var(--maxw);margin:0 auto}
  .eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:3px;text-transform:uppercase;
    color:var(--c1);display:inline-flex;align-items:center;gap:10px;margin-bottom:18px}
  .eyebrow::before{content:'';width:26px;height:1px;background:var(--c1);opacity:.7}
  h2.title{font-family:var(--display);font-weight:700;line-height:1.05;
    font-size:clamp(2rem,4.6vw,3.3rem);letter-spacing:-1px;margin-bottom:18px}
  .grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent}
  .lead{color:var(--muted);max-width:620px;font-size:1.02rem}

  /* ---------- HERO ---------- */
  .hero{min-height:100vh;display:flex;align-items:center;overflow:hidden;
    padding-top:120px;padding-bottom:60px}
  .hero-grid{max-width:var(--maxw);margin:0 auto;width:100%;
    display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
  .hero-copy{position:relative;z-index:3}
  .hero-copy .eyebrow{margin-bottom:22px}
  .hero h1{font-family:var(--display);font-weight:700;letter-spacing:-2px;
    font-size:clamp(2.8rem,7vw,5.2rem);line-height:.98;margin-bottom:10px}
  .hero .role{font-family:var(--mono);font-size:clamp(.85rem,1.6vw,1.05rem);
    color:var(--ink);margin-bottom:24px;height:1.6em}
  .hero .role .typed{background:var(--grad);-webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;font-weight:500}
  .hero .role .caret{display:inline-block;width:2px;height:1.05em;background:var(--c1);
    margin-left:2px;vertical-align:-2px;animation:blink 1s steps(2) infinite}
  @keyframes blink{0%,50%{opacity:1}51%,100%{opacity:0}}
  .hero p.tag{color:var(--muted);max-width:480px;font-size:1.05rem;margin-bottom:34px}
  .cta-row{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
  .btn{font-family:var(--body);font-weight:600;font-size:.92rem;padding:14px 26px;
    border-radius:40px;cursor:pointer;border:1px solid transparent;transition:.3s;
    display:inline-flex;align-items:center;gap:9px}
  .btn-primary{background:var(--grad);color:#fff;
    box-shadow:0 8px 30px -8px rgba(106,87,224,.45)}
  .btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 40px -8px rgba(106,87,224,.6)}
  .btn-ghost{border-color:var(--line-2);color:var(--ink);background:var(--ghost-bg)}
  .btn-ghost:hover{border-color:var(--c1);color:var(--c1);transform:translateY(-3px)}
  .hero-stats{display:flex;gap:34px;flex-wrap:wrap}
  .hero-stats .s b{font-family:var(--display);font-size:1.7rem;font-weight:700;
    display:block;line-height:1}
  .hero-stats .s span{font-size:.74rem;color:var(--muted);font-family:var(--mono);
    letter-spacing:1px;text-transform:uppercase}

  /* portrait + clouds */
  .hero-visual{position:relative;height:560px;display:flex;align-items:flex-end;
    justify-content:center}
  .cloud-field{position:absolute;inset:-12% -8%;z-index:1;filter:blur(2px)}
  .blob{position:absolute;border-radius:50%;filter:blur(48px);opacity:var(--blob-op);
    mix-blend-mode:var(--blob-blend)}
  .blob.b1{width:340px;height:340px;background:radial-gradient(circle,var(--c2),transparent 68%);
    top:6%;left:8%;animation:drift1 16s ease-in-out infinite}
  .blob.b2{width:300px;height:300px;background:radial-gradient(circle,var(--c1),transparent 68%);
    bottom:8%;right:4%;animation:drift2 19s ease-in-out infinite}
  .blob.b3{width:260px;height:260px;background:radial-gradient(circle,var(--c3),transparent 70%);
    top:40%;left:38%;animation:drift3 22s ease-in-out infinite}
  @keyframes drift1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(34px,26px) scale(1.12)}}
  @keyframes drift2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-30px,-22px) scale(1.15)}}
  @keyframes drift3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(18px,-30px) scale(1.1)}}
  /* soft cloud wisps */
  .wisp{position:absolute;border-radius:50%;background:var(--wisp-bg);
    filter:blur(34px)}
  .wisp.w1{width:240px;height:120px;top:24%;left:0;animation:wfloat 14s ease-in-out infinite}
  .wisp.w2{width:200px;height:110px;bottom:18%;right:-4%;animation:wfloat 17s ease-in-out infinite reverse}
  @keyframes wfloat{0%,100%{transform:translateX(0)}50%{transform:translateX(24px)}}

  .ring{position:absolute;z-index:2;border-radius:50%;border:1px solid var(--line-2)}
  .ring.r1{width:430px;height:430px;top:60px;left:50%;transform:translateX(-50%);
    border-style:dashed;opacity:.4;animation:spin 38s linear infinite}
  @keyframes spin{to{transform:translateX(-50%) rotate(360deg)}}

  .portrait{position:relative;z-index:3;height:100%;width:auto;
    filter:drop-shadow(0 30px 50px rgba(0,0,0,.55));
    -webkit-mask-image:linear-gradient(to bottom,#000 78%,transparent 99%);
    mask-image:linear-gradient(to bottom,#000 78%,transparent 99%)}

  /* floating tech chips */
  .chip{position:absolute;z-index:4;font-family:var(--mono);font-size:.72rem;
    padding:8px 14px;border-radius:30px;background:var(--chip-bg);
    border:1px solid var(--line-2);backdrop-filter:blur(6px);color:var(--ink);
    display:flex;align-items:center;gap:7px;box-shadow:0 8px 24px -8px var(--chip-shadow)}
  .chip i{width:7px;height:7px;border-radius:50%;background:var(--c1)}
  .chip.c-a{top:14%;left:-4%;animation:bob 6s ease-in-out infinite}
  .chip.c-b{top:42%;right:-8%;animation:bob 7s ease-in-out infinite .6s}
  .chip.c-c{bottom:22%;left:-6%;animation:bob 6.5s ease-in-out infinite 1.1s}
  .chip.c-b i{background:var(--c2)} .chip.c-c i{background:var(--c3)}
  @keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

  .scroll-cue{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:5;
    font-family:var(--mono);font-size:.66rem;letter-spacing:2px;color:var(--muted);
    text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:8px}
  .scroll-cue .mouse{width:22px;height:34px;border:1px solid var(--line-2);border-radius:12px;
    position:relative}
  .scroll-cue .mouse::after{content:'';position:absolute;top:6px;left:50%;transform:translateX(-50%);
    width:3px;height:6px;border-radius:2px;background:var(--c1);animation:wheel 1.6s ease-in-out infinite}
  @keyframes wheel{0%{opacity:0;top:6px}40%{opacity:1}100%{opacity:0;top:16px}}

  /* ---------- marquee ---------- */
  .marquee{border-block:1px solid var(--line);padding:0;overflow:hidden;
    background:var(--marquee-bg);z-index:1;position:relative}
  .marquee .track{display:flex;gap:48px;white-space:nowrap;padding:20px 0;
    width:max-content;animation:scrollx 28s linear infinite}
  .marquee:hover .track{animation-play-state:paused}
  .marquee span{font-family:var(--display);font-weight:600;font-size:1.15rem;color:var(--muted);
    display:inline-flex;align-items:center;gap:48px;letter-spacing:.5px}
  .marquee span::after{content:'✦';color:var(--c2);font-size:.8rem}
  @keyframes scrollx{to{transform:translateX(-50%)}}

  /* ---------- about ---------- */
  .about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(34px,5vw,72px);align-items:center}
  .about-photo{position:relative}
  .about-photo .frame{position:relative;border-radius:20px;overflow:hidden;
    border:1px solid var(--line-2);aspect-ratio:1/1}
  .about-photo .frame img{width:100%;height:100%;object-fit:cover}
  .about-photo .frame::after{content:'';position:absolute;inset:0;
    background:var(--frame-overlay);}
  .about-photo .glow{position:absolute;inset:-30px;z-index:-1;border-radius:30px;
    background:var(--grad);filter:blur(60px);opacity:.28}
  .about-photo .badge{position:absolute;bottom:-18px;right:-14px;
    background:var(--bg-3);border:1px solid var(--line-2);border-radius:16px;
    padding:14px 18px;display:flex;align-items:center;gap:12px;
    box-shadow:0 18px 40px -10px rgba(0,0,0,.6)}
  .about-photo .badge b{font-family:var(--display);font-size:1.5rem;line-height:1}
  .about-photo .badge span{font-size:.7rem;color:var(--muted);font-family:var(--mono);
    text-transform:uppercase;letter-spacing:1px}
  .about-text p{color:var(--muted);margin-bottom:18px}
  .about-text p strong{color:var(--ink);font-weight:600}
  .info-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 26px;margin-top:26px}
  .info-grid div{font-size:.9rem}
  .info-grid .k{font-family:var(--mono);font-size:.7rem;color:var(--c1);text-transform:uppercase;
    letter-spacing:1px;display:block;margin-bottom:3px}

  /* ---------- skills ---------- */
  .skill-groups{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px)}
  .skill-block h3{font-family:var(--display);font-size:1.05rem;margin-bottom:22px;
    display:flex;align-items:center;gap:10px}
  .skill-block h3 i{width:8px;height:8px;border-radius:2px;background:var(--grad);transform:rotate(45deg)}
  .bar{margin-bottom:20px}
  .bar .lab{display:flex;justify-content:space-between;font-size:.86rem;margin-bottom:8px}
  .bar .lab .pc{font-family:var(--mono);font-size:.78rem;color:var(--muted)}
  .bar .track{height:7px;border-radius:6px;background:var(--track-bg);overflow:hidden}
  .bar .fill{height:100%;width:0;border-radius:6px;background:var(--grad);
    transition:width 1.4s cubic-bezier(.2,.8,.2,1);position:relative}
  .bar .fill::after{content:'';position:absolute;right:0;top:0;bottom:0;width:14px;
    background:rgba(255,255,255,.6);filter:blur(6px)}

  /* ---------- experience timeline ---------- */
  .timeline{position:relative;margin-top:30px;padding-left:28px}
  .timeline::before{content:'';position:absolute;left:6px;top:6px;bottom:6px;width:2px;
    background:linear-gradient(var(--c1),var(--c2),var(--c3));opacity:.5}
  .tl-item{position:relative;padding-bottom:38px}
  .tl-item:last-child{padding-bottom:0}
  .tl-item::before{content:'';position:absolute;left:-28px;top:5px;width:14px;height:14px;
    border-radius:50%;background:var(--bg);border:2px solid var(--c1);
    box-shadow:0 0 0 4px rgba(91,227,212,.12)}
  .tl-item .when{font-family:var(--mono);font-size:.74rem;color:var(--c1);letter-spacing:1px}
  .tl-item h4{font-family:var(--display);font-size:1.18rem;margin:6px 0 2px}
  .tl-item .co{color:var(--muted);font-size:.92rem;margin-bottom:10px}
  .tl-item .co b{color:var(--ink)}
  .tl-item ul{list-style:none;display:flex;flex-direction:column;gap:7px}
  .tl-item li{position:relative;padding-left:18px;color:var(--muted);font-size:.92rem}
  .tl-item li::before{content:'▹';position:absolute;left:0;color:var(--c2)}

  /* ---------- portfolio ---------- */
  .work-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:14px}
  .card{position:relative;border-radius:18px;overflow:hidden;cursor:pointer;
    border:1px solid var(--line);background:var(--bg-2);
    transition:transform .4s,border-color .4s,box-shadow .4s}
  .card:hover{transform:translateY(-8px);border-color:var(--line-2);
    box-shadow:0 26px 50px -18px var(--card-shadow)}
  .card .thumb{aspect-ratio:16/11;position:relative;overflow:hidden}
  .card .thumb svg{width:100%;height:100%;display:block;transition:transform .6s}
  .card:hover .thumb svg{transform:scale(1.06)}
  .card .cat{position:absolute;top:12px;left:12px;font-family:var(--mono);font-size:.65rem;
    letter-spacing:1px;text-transform:uppercase;padding:5px 10px;border-radius:20px;
    background:var(--cat-bg);border:1px solid var(--line-2);backdrop-filter:blur(6px)}
  .card .body{padding:18px 20px 22px}
  .card .body h4{font-family:var(--display);font-size:1.12rem;margin-bottom:6px}
  .card .body p{color:var(--muted);font-size:.86rem;line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .card .more{margin-top:14px;font-family:var(--mono);font-size:.74rem;color:var(--c1);
    display:flex;align-items:center;gap:7px}
  .card .more .arr{transition:transform .3s}
  .card:hover .more .arr{transform:translateX(5px)}

  /* modal */
  .modal-bg{position:fixed;inset:0;z-index:120;background:var(--overlay);
    backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;
    padding:24px;opacity:0;pointer-events:none;transition:opacity .35s}
  .modal-bg.open{opacity:1;pointer-events:auto}
  .modal{background:var(--bg-2);border:1px solid var(--line-2);border-radius:22px;
    max-width:760px;width:100%;max-height:88vh;overflow:auto;transform:translateY(24px) scale(.98);
    transition:transform .4s cubic-bezier(.2,.8,.2,1)}
  .modal-bg.open .modal{transform:translateY(0) scale(1)}
  .modal .hero-img{position:relative;aspect-ratio:16/8;overflow:hidden}
  .modal .hero-img svg{width:100%;height:100%}
  .modal .ph-note{position:absolute;bottom:12px;right:14px;font-family:var(--mono);
    font-size:.66rem;color:var(--muted);background:var(--phnote-bg);padding:5px 10px;
    border-radius:8px;border:1px solid var(--line)}
  .modal .close{position:absolute;top:14px;right:14px;z-index:5;width:38px;height:38px;
    border-radius:50%;background:var(--bg-3);border:1px solid var(--line-2);
    color:var(--ink);font-size:1.1rem;cursor:pointer;display:flex;align-items:center;
    justify-content:center;transition:.3s}
  .modal .close:hover{background:var(--c3);color:#fff;transform:rotate(90deg)}
  .modal .m-body{padding:30px clamp(22px,4vw,40px) 36px}
  .modal .m-cat{font-family:var(--mono);font-size:.72rem;color:var(--c1);letter-spacing:2px;
    text-transform:uppercase}
  .modal .m-body h3{font-family:var(--display);font-size:1.7rem;margin:8px 0 16px}
  .modal .m-body p{color:var(--muted);margin-bottom:14px}
  .modal .m-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
  .modal .m-tags span{font-family:var(--mono);font-size:.72rem;padding:6px 12px;
    border-radius:20px;border:1px solid var(--line-2);color:var(--ink);
    background:rgba(255,255,255,.03)}
  .modal .feat{margin:18px 0;display:flex;flex-direction:column;gap:9px}
  .modal .feat li{list-style:none;position:relative;padding-left:22px;color:var(--muted);
    font-size:.92rem}
  .modal .feat li::before{content:'✦';position:absolute;left:0;color:var(--c2);font-size:.75rem;top:3px}

  /* ---------- contact ---------- */
  .contact{text-align:center}
  .contact .big{font-family:var(--display);font-weight:700;letter-spacing:-1.5px;
    font-size:clamp(2.2rem,6vw,4.4rem);line-height:1.02;margin:14px 0 28px}
  .contact-links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-top:8px}
  .c-link{display:flex;align-items:center;gap:10px;padding:14px 22px;border-radius:14px;
    border:1px solid var(--line);background:var(--bg-2);font-size:.9rem;transition:.3s}
  .c-link:hover{border-color:var(--c1);transform:translateY(-4px);color:var(--c1)}
  .c-link svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8}

  footer{border-top:1px solid var(--line);padding:30px clamp(20px,5vw,48px);
    display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
    position:relative;z-index:1}
  footer p{font-size:.8rem;color:var(--muted)}
  footer .up{font-family:var(--mono);font-size:.74rem;color:var(--muted);cursor:pointer;
    display:flex;align-items:center;gap:8px;transition:.3s}
  footer .up:hover{color:var(--c1)}

  /* ---------- reveal animation ---------- */
  .reveal{opacity:0;transform:translateY(40px);transition:opacity .8s,transform .8s}
  .reveal.in{opacity:1;transform:none}
  .reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}
  .reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}

  /* ---------- responsive ---------- */
  @media(max-width:900px){
    .hero-grid{grid-template-columns:1fr;gap:10px}
    .hero-visual{height:430px;order:-1;margin-bottom:10px}
    .about-grid{grid-template-columns:1fr;gap:48px}
    .about-photo{max-width:360px;margin:0 auto}
    .skill-groups{grid-template-columns:1fr;gap:8px}
    .work-grid{grid-template-columns:1fr 1fr}
    nav.links{position:fixed;inset:0 0 0 auto;width:min(78vw,320px);flex-direction:column;
      justify-content:center;gap:26px;padding:40px;background:rgba(7,10,20,.96);
      backdrop-filter:blur(18px);transform:translateX(100%);transition:transform .4s;
      border-left:1px solid var(--line)}
    nav.links.open{transform:none}
    nav.links a{font-size:1.05rem}
    .burger{display:flex;z-index:95}
  }
  @media(max-width:560px){
    .work-grid{grid-template-columns:1fr}
    .hero-stats{gap:22px}
    .info-grid{grid-template-columns:1fr}
    .chip{display:none}
  }
  @media(prefers-reduced-motion:reduce){
    *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    .reveal{opacity:1;transform:none}
    .portrait{-webkit-mask-image:none;mask-image:none}
  }