/* =====================================================================
   Bobur Zokirov — Personal Portfolio
   style.css
   ---------------------------------------------------------------------
   Design system: near-white minimal · deep navy accent · Newsreader serif
   Light + dark mode via [data-theme] on <html>.
   To re-skin, change the CSS variables in :root and [data-theme="dark"].
   ===================================================================== */

/* ------------------------------ Tokens ------------------------------ */
:root{
  --bg:#FBFBFA;
  --surface:#FFFFFF;
  --surface-2:#F4F4F1;
  --ink:#15233B;
  --ink-soft:#3A4658;
  --muted:#727A88;
  --line:#E7E7E3;
  --line-strong:#D8D8D2;
  --accent:#1A2B4A;          /* signature navy */
  --accent-hover:#11203A;
  --accent-soft:#EEF1F6;     /* navy tint backgrounds */
  --accent-text:#1A2B4A;     /* navy used as text on light bg */
  --btn-fg:#FFFFFF;
  --shadow:0 24px 60px -34px rgba(21,35,59,.32);
  --shadow-sm:0 10px 30px -20px rgba(21,35,59,.4);

  --serif:"Newsreader", Georgia, "Times New Roman", serif;
  --sans:-apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono:ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw:1180px;
  --radius:14px;
  --radius-sm:9px;
}
[data-theme="dark"]{
  --bg:#0C1320;
  --surface:#121C2C;
  --surface-2:#172435;
  --ink:#EAF0F8;
  --ink-soft:#C0CBD9;
  --muted:#8593A6;
  --line:#23314A;
  --line-strong:#2C3C58;
  --accent:#7AA0DC;
  --accent-hover:#92B2E6;
  --accent-soft:#16273E;
  --accent-text:#9DBCEC;
  --btn-fg:#0C1320;
  --shadow:0 24px 60px -28px rgba(0,0,0,.6);
  --shadow-sm:0 10px 30px -18px rgba(0,0,0,.55);
}

/* ------------------------------ Base -------------------------------- */
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:84px;}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
body{
  margin:0;
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  transition:background .35s ease, color .35s ease;
}
h1,h2,h3,h4{font-family:var(--serif);font-weight:400;letter-spacing:-.015em;line-height:1.1;margin:0;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
::selection{background:var(--accent);color:#fff;}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}

/* eyebrow / section heads */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--sans);font-size:12px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-text);}
.eyebrow::before{content:"";width:26px;height:1px;background:currentColor;opacity:.55;}
.section-head{margin-bottom:48px;max-width:640px;}
.section-head h2{font-size:40px;margin:16px 0 0;}
.section-head p{color:var(--muted);font-size:17px;margin-top:14px;}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--sans);font-size:14.5px;font-weight:600;
  padding:13px 21px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,background .2s ease,border-color .2s ease,color .2s ease;text-align:center;}
.btn:active{transform:translateY(1px);}
.btn--primary{background:var(--accent);color:var(--btn-fg);}
.btn--primary:hover{background:var(--accent-hover);}
.btn--ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent-text);}
.btn--text{padding:13px 4px;color:var(--ink-soft);}
.btn--text:hover{color:var(--accent-text);}
.btn--sm{padding:9px 15px;font-size:13px;}

/* ------------------------------ Nav --------------------------------- */
.nav{position:sticky;top:0;z-index:60;background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid transparent;transition:border-color .3s,background .3s;}
.nav.scrolled{border-bottom-color:var(--line);}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.brand{font-family:var(--serif);font-size:21px;font-weight:500;letter-spacing:-.01em;white-space:nowrap;}
.brand b{color:var(--accent-text);font-weight:600;}
.nav__links{display:flex;align-items:center;gap:30px;}
.nav__links a{font-size:14px;font-weight:500;color:var(--ink-soft);transition:color .18s;}
.nav__links a:hover{color:var(--accent-text);}
.nav__actions{display:flex;align-items:center;gap:14px;}
/* lang select */
.lang-select{
  font-family:var(--mono);font-size:11px;font-weight:600;letter-spacing:.05em;
  padding:5px 28px 5px 10px;border-radius:6px;
  border:1px solid var(--line-strong);
  background:var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23727A88' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 9px center;
  color:var(--ink-soft);cursor:pointer;
  appearance:none;-webkit-appearance:none;
  transition:border-color .15s,color .15s;
  margin-left:4px;
}
.lang-select:hover,.lang-select:focus{border-color:var(--accent);color:var(--accent-text);outline:none;}
[data-theme="dark"] .lang-select{background-color:var(--surface);}

/* theme toggle */
.theme-toggle{width:40px;height:40px;border-radius:50%;border:1px solid var(--line-strong);background:var(--surface);
  display:grid;place-items:center;cursor:pointer;color:var(--ink-soft);transition:border-color .2s,color .2s,transform .2s;}
.theme-toggle:hover{border-color:var(--accent);color:var(--accent-text);transform:rotate(-12deg);}
.theme-toggle svg{width:18px;height:18px;}
.theme-toggle .moon{display:none;}
[data-theme="dark"] .theme-toggle .sun{display:none;}
[data-theme="dark"] .theme-toggle .moon{display:block;}

/* hamburger */
.hamburger{display:none;width:40px;height:40px;border:1px solid var(--line-strong);background:var(--surface);
  border-radius:9px;cursor:pointer;flex-direction:column;gap:4px;align-items:center;justify-content:center;}
.hamburger span{width:18px;height:1.6px;background:var(--ink);transition:transform .25s,opacity .25s;}
.nav.open .hamburger span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.nav.open .hamburger span:nth-child(2){opacity:0;}
.nav.open .hamburger span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}

/* ------------------------------ Hero -------------------------------- */
.hero{padding-top:40px;}
.hero__grid{display:grid;grid-template-columns:1.06fr .94fr;gap:0;align-items:stretch;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface);box-shadow:var(--shadow);}
.hero__left{padding:64px 56px;display:flex;flex-direction:column;gap:26px;}
.hero__name{font-size:52px;line-height:1.02;margin:0;}
.hero__title{font-family:var(--sans);font-size:16px;font-weight:500;color:var(--ink-soft);margin:-8px 0 0;}
.hero__loc{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);}
.hero__lede{color:var(--ink-soft);font-size:17px;line-height:1.62;max-width:46ch;}
.hero__btns{display:flex;gap:12px;align-items:center;flex-wrap:wrap;}
.hero__socials{display:flex;gap:22px;align-items:center;flex-wrap:wrap;margin-top:2px;}
.hero__socials a{color:var(--muted);font-size:13.5px;font-weight:500;transition:color .18s;}
.hero__socials a:hover{color:var(--accent-text);}
.hero__socials-contact{font-weight:700;color:var(--accent-text)!important;background:var(--accent-soft);
  padding:6px 14px;border-radius:100px;transition:background .18s,transform .18s;}
.hero__socials-contact:hover{background:var(--accent);color:var(--btn-fg)!important;transform:translateY(-1px);}
.hero__right{position:relative;border-left:1px solid var(--line);min-height:540px;}
.hero__photo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 22%;}
.dot{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.7;}

/* photo placeholder (swap with a real <img> in assets/img/headshot.jpg) */
.photo-ph{position:absolute;inset:0;display:flex;align-items:flex-end;justify-content:center;
  background:repeating-linear-gradient(135deg,var(--surface-2) 0 12px,var(--bg) 12px 24px);}
.photo-ph span{font-family:var(--mono);font-size:11px;color:var(--muted);background:var(--surface);
  border:1px solid var(--line);padding:5px 11px;border-radius:6px;margin-bottom:24px;}

/* ------------------------------ About ------------------------------- */
.about{display:grid;grid-template-columns:1fr 1.4fr;gap:64px;align-items:start;}
.about__lead{font-family:var(--serif);font-size:26px;line-height:1.32;color:var(--ink);}
.about__body{color:var(--ink-soft);font-size:16.5px;line-height:1.7;display:flex;flex-direction:column;gap:18px;}
.about__companies{margin-top:8px;display:flex;flex-wrap:wrap;gap:10px;}
.chip{font-size:12.5px;font-weight:500;color:var(--ink-soft);background:var(--surface);border:1px solid var(--line);
  padding:7px 13px;border-radius:100px;}

/* --------------------------- Expertise ------------------------------ */
.expertise-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.exp-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;
  display:flex;flex-direction:column;gap:18px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s;}
.exp-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm);border-color:var(--line-strong);}
.exp-card__num{font-family:var(--serif);font-size:15px;color:var(--accent-text);}
.exp-card h3{font-size:20px;}
.exp-card ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.exp-card li{font-size:14px;color:var(--ink-soft);display:flex;gap:9px;align-items:baseline;}
.exp-card li::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.5;flex:none;transform:translateY(-1px);}

/* --------------------------- Experience ----------------------------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;background:var(--line-strong);}
.tl-item{position:relative;padding:0 0 44px;}
.tl-item:last-child{padding-bottom:0;}
/* Experience expand/collapse */
.tl-more{display:none;flex-direction:column;gap:0;}
.tl-more.open{display:flex;}
.tl-expand-wrap{padding:0 0 44px;position:relative;}
.tl-expand-wrap::before{content:"";position:absolute;left:-34px;top:0;bottom:0;width:0;}
.btn--expand{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--muted);
  background:transparent;border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);padding:10px 18px;cursor:pointer;
  transition:color .2s,border-color .2s;
}
.btn--expand:hover{color:var(--accent-text);border-color:var(--accent);}
.btn--expand svg{width:14px;height:14px;transition:transform .3s;}
.btn--expand.open svg{transform:rotate(180deg);}
.tl-item::before{content:"";position:absolute;left:-34px;top:7px;width:15px;height:15px;border-radius:50%;
  background:var(--bg);border:2px solid var(--accent);transition:background .2s;}
.tl-item:hover::before{background:var(--accent);}
.tl-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;
  transition:border-color .25s,box-shadow .25s;}
.tl-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);}
.tl-head{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:baseline;}
.tl-role{font-size:21px;}
.tl-org{font-family:var(--sans);font-size:14.5px;font-weight:600;color:var(--accent-text);margin-top:3px;}
.tl-meta{font-size:13px;color:var(--muted);text-align:right;white-space:nowrap;}
.tl-card ul{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-direction:column;gap:7px;}
.tl-card li{font-size:14.5px;color:var(--ink-soft);display:flex;gap:9px;align-items:baseline;}
.tl-card li::before{content:"–";color:var(--muted);flex:none;}
.tl-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line);}
.tl-metric{background:var(--accent-soft);border-radius:8px;padding:9px 14px;}
.tl-metric .v{font-family:var(--serif);font-size:19px;color:var(--accent-text);line-height:1;}
.tl-metric .k{font-size:11.5px;color:var(--muted);margin-top:4px;}

/* --------------------------- Portfolio ------------------------------ */
.portfolio-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.pf-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  display:flex;flex-direction:column;transition:transform .25s ease,box-shadow .25s ease,border-color .25s;}
.pf-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--line-strong);}
.pf-cat{display:inline-flex;font-size:11px;font-weight:600;letter-spacing:.04em;color:var(--accent-text);
  background:var(--accent-soft);border:1px solid var(--line);padding:4px 10px;border-radius:100px;margin-bottom:4px;}
.pf-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.pf-body h3{font-size:21px;}
.pf-role{font-size:12.5px;color:var(--muted);}
.pf-role b{color:var(--ink-soft);font-weight:600;}
.pf-desc{font-size:14.5px;color:var(--ink-soft);line-height:1.6;flex:1;}
.pf-actions{display:flex;gap:10px;align-items:center;margin-top:6px;flex-wrap:wrap;}
.store-links{display:flex;gap:7px;flex-wrap:wrap;margin-top:10px;}
.store-link{display:inline-flex;align-items:center;gap:5px;padding:5px 11px;border-radius:100px;border:1px solid var(--line-strong);font-size:12px;font-weight:600;color:var(--ink-soft);text-decoration:none;transition:border-color .2s,color .2s;}
.store-link:hover{border-color:var(--accent);color:var(--accent-text);}
.store-link svg{flex-shrink:0;}

/* ----------------------- Prototype Library -------------------------- */
.filters{display:flex;gap:10px;margin-bottom:28px;flex-wrap:wrap;}
.filter{font-family:var(--sans);font-size:13px;font-weight:600;color:var(--ink-soft);background:transparent;
  border:1px solid var(--line-strong);padding:8px 16px;border-radius:100px;cursor:pointer;transition:all .18s;}
.filter:hover{border-color:var(--accent);color:var(--accent-text);}
.filter.active{background:var(--accent);color:var(--btn-fg);border-color:var(--accent);}
.proto-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.proto-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 28px;
  display:flex;flex-direction:column;gap:14px;transition:border-color .25s,box-shadow .25s,transform .25s;}
.proto-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm);transform:translateY(-3px);}
.proto-top{display:flex;justify-content:space-between;align-items:flex-start;gap:14px;}
.proto-badges{display:flex;gap:7px;flex-wrap:wrap;}
.badge{font-size:11px;font-weight:600;letter-spacing:.03em;padding:4px 10px;border-radius:100px;border:1px solid var(--line-strong);color:var(--ink-soft);}
.badge--int{background:var(--accent-soft);color:var(--accent-text);border-color:transparent;}
.badge--ext{background:transparent;}
.badge--demo{color:#9a6b1f;border-color:#e4cda0;}
.badge--public{color:#1f7a52;border-color:#aedcc6;}
.badge--private{color:var(--muted);}
.badge--soon{color:#7c5cbf;border-color:#c4b0e8;background:rgba(124,92,191,.08);}
.badge--platform{padding:3px 6px;display:inline-flex;align-items:center;justify-content:center;position:relative;}
.badge--platform-desktop{color:#1e6faa;border-color:#a8d4f0;}
.badge--platform-mobile{color:#1a7a5e;border-color:#9ecec0;}
.badge--platform::after{content:attr(data-tooltip);position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:#1a1f2e;color:#fff;font-size:11px;font-weight:500;white-space:nowrap;padding:5px 9px;border-radius:6px;pointer-events:none;opacity:0;transition:opacity .15s ease;box-shadow:0 4px 12px rgba(0,0,0,.2);}
.badge--platform::before{content:"";position:absolute;bottom:calc(100% + 2px);left:50%;transform:translateX(-50%);border:4px solid transparent;border-top-color:#1a1f2e;pointer-events:none;opacity:0;transition:opacity .15s ease;}
.badge--platform:hover::after,.badge--platform:hover::before{opacity:1;}
[data-theme="dark"] .badge--demo{color:#e6c073;border-color:#5a4a26;}
[data-theme="dark"] .badge--public{color:#6cd6a0;border-color:#2a5340;}
[data-theme="dark"] .badge--soon{color:#b89ee8;border-color:#4a3470;background:rgba(124,92,191,.15);}
[data-theme="dark"] .badge--platform-desktop{color:#6fb8e8;border-color:#2a5070;}
[data-theme="dark"] .badge--platform-mobile{color:#5ec9a8;border-color:#1e4a3a;}
.proto-card--soon .btn{opacity:.4;pointer-events:none;cursor:not-allowed;}
.proto-card h3{font-size:19px;}
.proto-product{font-size:12.5px;color:var(--muted);}
.proto-desc{font-size:14px;color:var(--ink-soft);line-height:1.6;flex:1;}

/* ----------------------------- Resume ------------------------------- */
.resume-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:22px;}
.resume-block{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:30px 30px;}
.resume-block h3{font-size:20px;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.resume-block h3 .ico{width:22px;height:22px;color:var(--accent-text);}
.edu-item{padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--line);}
.edu-item:last-child{border:none;margin:0;padding:0;}
.edu-item .d{font-size:16px;font-weight:600;color:var(--ink);}
.edu-item .s{font-size:14px;color:var(--muted);margin-top:3px;}
.lang-row{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid var(--line);}
.lang-row:last-child{border:none;}
.lang-row .l{font-size:15px;font-weight:500;}
.lang-row .p{font-size:12.5px;color:var(--accent-text);font-weight:600;letter-spacing:.04em;}
.cert-list{list-style:none;margin:0;padding:0;columns:1;display:flex;flex-direction:column;gap:11px;}
.cert-list li{font-size:14px;color:var(--ink-soft);display:flex;gap:10px;align-items:baseline;}
.cert-list li::before{content:"✓";color:var(--accent-text);font-weight:700;flex:none;}
.cert-list li a{color:inherit;text-decoration:none;transition:text-shadow .2s;}
.cert-list li a:hover{text-shadow:0 0 12px color-mix(in srgb,var(--accent-text) 50%,transparent);}
.resume-cta{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:var(--accent);color:#fff;border-radius:var(--radius);padding:30px 36px;}
[data-theme="dark"] .resume-cta{background:var(--surface-2);border:1px solid var(--line);color:var(--ink);}
.resume-cta h3{color:inherit;font-size:24px;}
.resume-cta p{color:rgba(255,255,255,.8);font-size:14.5px;margin-top:6px;}
[data-theme="dark"] .resume-cta p{color:var(--muted);}
.resume-cta .btn--primary{background:#fff;color:var(--accent);}
.resume-cta .btn--primary:hover{background:#eef1f6;}
[data-theme="dark"] .resume-cta .btn--primary{background:var(--accent);color:var(--btn-fg);}

/* ----------------------------- Contact ------------------------------ */
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start;}
.contact-cards{display:flex;flex-direction:column;gap:12px;}
.contact-card{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:18px 20px;transition:border-color .2s,transform .2s;}
.contact-card:hover{border-color:var(--accent);transform:translateX(3px);}
.contact-card .ci{width:42px;height:42px;border-radius:10px;background:var(--accent-soft);display:grid;place-items:center;color:var(--accent-text);flex:none;}
.contact-card .ci svg{width:19px;height:19px;}
.contact-card .ck{font-size:12px;color:var(--muted);}
.contact-card .cv{font-size:15px;font-weight:500;color:var(--ink);}
.form{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;gap:16px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;font-weight:600;color:var(--ink-soft);}
.field input,.field textarea{font-family:var(--sans);font-size:15px;color:var(--ink);background:var(--bg);
  border:1px solid var(--line-strong);border-radius:9px;padding:13px 15px;transition:border-color .18s,box-shadow .18s;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);}
.field textarea{resize:vertical;min-height:120px;}
.form-note{font-size:12.5px;color:var(--muted);}
.form-status{font-size:14px;font-weight:500;color:var(--accent-text);display:none;}
.form-status.show{display:block;}

/* ----------------------------- Footer ------------------------------- */
.footer{border-top:1px solid var(--line);padding:46px 0 40px;}
.footer__inner{display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;}
.footer__brand{font-family:var(--serif);font-size:18px;}
.footer__links{display:flex;gap:22px;}
.footer__links a{font-size:13.5px;color:var(--muted);transition:color .18s;}
.footer__links a:hover{color:var(--accent-text);}
.footer__copy{font-size:12.5px;color:var(--muted);}
.footer__bottom{display:flex;align-items:center;gap:8px;}
.footer__easter{background:none;border:none;padding:0;font-size:11px;font-style:italic;color:var(--muted);opacity:.35;cursor:pointer;letter-spacing:.01em;transition:opacity .2s;line-height:1;}
.footer__easter:hover{opacity:.6;}
.easter-tip{position:absolute;bottom:calc(100% + 6px);left:50%;transform:translateX(-50%);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:8px 14px;font-size:11.5px;font-style:italic;color:var(--text);white-space:nowrap;box-shadow:0 4px 16px rgba(0,0,0,.1);pointer-events:none;opacity:0;transition:opacity .15s;}
.easter-tip.visible{opacity:1;}
.easter-wrap{position:relative;display:inline-block;}

/* ----------------------------- Modal -------------------------------- */
.modal{position:fixed;inset:0;z-index:100;display:none;align-items:flex-start;justify-content:center;padding:56px 24px;overflow-y:auto;}
.modal.open{display:flex;}
.modal__overlay{position:fixed;inset:0;background:rgba(12,19,32,.55);backdrop-filter:blur(3px);animation:fade .2s ease;}
.modal__panel{position:relative;z-index:1;width:100%;max-width:760px;background:var(--bg);border:1px solid var(--line);
  border-radius:18px;box-shadow:0 40px 100px -30px rgba(0,0,0,.5);animation:rise .3s cubic-bezier(.2,.7,.2,1);}
.modal__close{position:absolute;top:18px;right:18px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);
  background:var(--surface);color:var(--ink);font-size:18px;cursor:pointer;z-index:2;transition:transform .2s,border-color .2s;}
.modal__close:hover{transform:rotate(90deg);border-color:var(--accent);}
.cs-hero{padding:44px 48px 30px;border-bottom:1px solid var(--line);}
.cs-hero .pf-cat{position:static;display:inline-block;margin-bottom:14px;}
.cs-hero h2{font-size:34px;margin:0;}
.cs-hero .cs-role{font-size:14px;color:var(--muted);margin-top:10px;}
.cs-body{padding:34px 48px 44px;display:flex;flex-direction:column;gap:26px;}
.cs-thumb{height:200px;border-radius:12px;background:repeating-linear-gradient(135deg,var(--surface-2) 0 12px,var(--bg) 12px 24px);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;}
.cs-thumb span{font-family:var(--mono);font-size:11px;color:var(--muted);background:var(--surface);border:1px solid var(--line);padding:5px 11px;border-radius:6px;}
.cs-section h4{font-family:var(--sans);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent-text);margin-bottom:10px;}
.cs-section p{font-size:15.5px;color:var(--ink-soft);line-height:1.7;}
.cs-section ul{margin:0;padding-left:20px;color:var(--ink-soft);font-size:15px;line-height:1.7;}
.cs-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;}
.cs-metric{background:var(--accent-soft);border-radius:10px;padding:18px;}
.cs-metric .v{font-family:var(--serif);font-size:28px;color:var(--accent-text);line-height:1;}
.cs-metric .k{font-size:12.5px;color:var(--muted);margin-top:6px;}
.cs-foot{display:flex;gap:12px;flex-wrap:wrap;padding-top:6px;}

@keyframes fade{from{opacity:0;}to{opacity:1;}}
@keyframes rise{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:none;}}

/* --------------------------- Scroll reveal -------------------------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.2,1);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none;}}

/* --------------------------- Responsive ----------------------------- */
@media (max-width:1040px){
  .expertise-grid{grid-template-columns:repeat(2,1fr);}
  .portfolio-grid,.proto-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:880px){
  .nav__links{position:fixed;inset:72px 0 auto 0;flex-direction:column;gap:0;background:var(--bg);
    border-bottom:1px solid var(--line);padding:8px 32px 20px;transform:translateY(-130%);transition:transform .3s ease;z-index:55;}
  .nav.open .nav__links{transform:none;}
  .nav__links a{padding:14px 0;border-bottom:1px solid var(--line);width:100%;}
  .hamburger{display:flex;}
  .hero__grid{grid-template-columns:1fr;}
  .hero__right{min-height:340px;border-left:none;border-top:1px solid var(--line);}
  .about{grid-template-columns:1fr;gap:32px;}
  .resume-grid,.contact-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:32px;}
}
@media (max-width:600px){
  .wrap{padding:0 20px;}
  .section{padding:72px 0;}
  .hero__left{padding:42px 30px;}
  .hero__name{font-size:42px;}
  .portfolio-grid,.proto-grid{grid-template-columns:1fr;}
  .cs-hero,.cs-body{padding-left:26px;padding-right:26px;}
  .tl-meta{text-align:left;}
}

/* ---------------------- Section expand/collapse --------------------- */
.section-more{display:none;}
.section-more.open{display:contents;}
.cert-list.cert-more{display:none;flex-direction:column;gap:11px;margin-top:11px;}
.cert-list.cert-more.open{display:flex;}
.section-expand-wrap{padding:20px 0 0;}
.expertise-grid--collapsed{grid-template-columns:repeat(2,1fr);}
.about--collapsed{grid-template-columns:1fr;}
.about--collapsed #aboutMore{display:none;}
