:root{--accent:#164535}
.theme-toggle{display:grid;place-items:center;flex:none;width:44px;height:44px;padding:11px;border:1px solid var(--line);border-radius:50%;color:var(--ink);background:var(--paper);transition:background .2s,border-color .2s}
.theme-toggle:hover{background:var(--surface);border-color:var(--ink)}
.theme-toggle svg{width:20px;height:20px;grid-area:1/1}
.theme-sun{display:none}
[data-theme="dark"] .theme-moon{display:none}
[data-theme="dark"] .theme-sun{display:block}
[data-theme="dark"]{--paper:#111a16;--surface:#19251e;--ink:#e7ede8;--muted:#acbcb1;--line:#35483c;--accent:#a3cdb5;background:var(--paper);color:var(--ink)}
body{background:var(--paper)}
[data-theme="dark"] .site-header,[data-theme="dark"] .mobile-nav,[data-theme="dark"] .skip{background:var(--paper)}
[data-theme="dark"] .brand-symbol img{filter:brightness(0) invert(1);opacity:.9}
[data-theme="dark"] .languages button[aria-pressed=true]{border-color:var(--accent)}
[data-theme="dark"] .architecture-story{background:#141f19;color:var(--ink)}
[data-theme="dark"] .hero-brief{background:#22362b;border-color:#5b7965}
[data-theme="dark"] .hero-brief:hover{background:#2e4939}
[data-theme="dark"] .hero-brief>span:last-child,[data-theme="dark"] .story-auto{color:var(--muted)}
[data-theme="dark"] .story-steps button{color:var(--muted);border-color:var(--line)}
[data-theme="dark"] .story-steps button[aria-current="step"]{color:var(--ink)}
[data-theme="dark"] .story-steps button:before{background:var(--accent)}
[data-theme="dark"] .story-pause,[data-theme="dark"] .story-next>span:last-child{border-color:#678371}
[data-theme="dark"] .architecture-story :focus-visible{outline-color:var(--accent)}
[data-theme="dark"] .story-auto input{accent-color:var(--accent)}
[data-theme="dark"] .visit-section,[data-theme="dark"] .case-story{background:var(--surface)}
[data-theme="dark"] .studio-map-wrap{background:#25392e}
[data-theme="dark"] .map-fallback{color:var(--ink)}
[data-theme="dark"] .project-tag,[data-theme="dark"] .project-open,[data-theme="dark"] .gallery-item .expand-icon,[data-theme="dark"] .comparison-stage figcaption{background:var(--paper);color:var(--ink)}
[data-theme="dark"] .gallery-item,[data-theme="dark"] .project-cover,[data-theme="dark"] .comparison-stage,[data-theme="dark"] .comparison[data-mode="slider"] .comparison-stage figure{background:#24332a}
[data-theme="dark"] .portfolio-categories a:hover{color:var(--accent)}
[data-theme="dark"] .archive-note,[data-theme="dark"] .comparison-intro .comparison-credit{border-color:var(--accent)}
[data-theme="dark"] .brief-home-cta+.contact-primary{border-color:var(--accent);color:var(--ink)}
[data-theme="dark"] .brief-option,[data-theme="dark"] .brief-style,[data-theme="dark"] .brief-field input,[data-theme="dark"] .brief-field select,[data-theme="dark"] .brief-field textarea,[data-theme="dark"] .admin-offer textarea,[data-theme="dark"] .admin-state-select{background:var(--surface);color:var(--ink);border-color:#607768}
[data-theme="dark"] .brief-option:hover{border-color:var(--accent)}
[data-theme="dark"] .brief-option[aria-pressed=true]{background:var(--green);border-color:var(--accent);color:white}
[data-theme="dark"] .brief-style[aria-pressed=true]{outline-color:var(--accent)}
[data-theme="dark"] .brief-inspiration{background:#22362b;border-color:#607768}
[data-theme="dark"] .admin-button{border-color:#789b86}
[data-theme="dark"] .admin-item[aria-pressed=true]{background:var(--green);box-shadow:inset 3px 0 var(--accent)}
[data-theme="dark"] #brief-error{color:#ffb29f}
[data-theme="dark"] input,[data-theme="dark"] textarea,[data-theme="dark"] select{accent-color:var(--accent)}
[data-theme="dark"] #brief-progress::-webkit-progress-value{background:var(--accent)}
[data-theme="dark"] #brief-progress::-moz-progress-bar{background:var(--accent)}
[data-theme="dark"] input:focus-visible,[data-theme="dark"] textarea:focus-visible,[data-theme="dark"] select:focus-visible{outline-color:var(--accent)}
.header-right{gap:18px}
.languages a{font-size:12px;letter-spacing:.5px;padding:7px 0;opacity:.5;text-align:center}
.languages a[aria-current="page"]{opacity:1;border-bottom:1px solid var(--accent)}
@media(max-width:1200px){.desktop-nav{display:none}.menu-toggle{display:block}}
@media(max-width:600px){
  .site-header{gap:8px;padding-left:18px;padding-right:18px}
  .header-right{gap:6px}
  .theme-toggle{width:40px;height:40px;padding:10px}
  .menu-toggle{width:32px;min-height:40px;margin-left:0;padding:6px 4px}
  .languages{gap:0}.languages button,.languages a{min-width:28px;min-height:40px;padding:7px 3px;display:grid;place-items:center}
  .brand{gap:5px;font-size:10px}.brand-symbol{transform:scale(.7);margin-right:-6px;margin-left:-6px}
  .brand small{font-size:8px;letter-spacing:2.5px}
  body[data-page="brief"] .header-right{display:grid;grid-template-columns:1fr 40px;gap:0 6px;max-width:156px;align-items:center}
  body[data-page="brief"] .header-right>.languages{grid-column:1;grid-row:1}
  body[data-page="brief"] .header-right>a{grid-column:1;grid-row:2;font-size:12px;text-align:right;padding-bottom:8px}
  body[data-page="brief"] .theme-toggle{grid-column:2;grid-row:1/3}
  .story-steps button{font-size:12px;min-height:44px}
  .story-kicker{font-size:11px}
  .contact-links a{overflow-wrap:anywhere;max-width:100%}
}
@media(max-width:360px){.site-header{padding-left:12px;padding-right:12px}.brand-symbol{display:none}.header-right{gap:4px}}
@media(prefers-reduced-motion:reduce){.theme-toggle{transition:none}}