/* ==========================================================================
   Buttons — sharp corners, no glow. Hover inverts fill/border rather than
   lifting with a shadow.
   ========================================================================== */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-body);font-size:11px;font-weight:700;
  letter-spacing:0.12em;text-transform:uppercase;
  padding:15px 28px;border:1.5px solid transparent;
  white-space:nowrap;position:relative;
  transition:background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.btn svg{width:14px;height:14px;transition:transform var(--dur-fast) var(--ease)}
.btn:hover svg{transform:translateX(3px)}
.btn-orange{background:var(--orange);color:var(--white)}
.btn-orange:hover{background:var(--ink)}
.btn-ink{background:var(--ink);color:var(--white)}
.btn-ink:hover{background:var(--orange)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:var(--white)}
.btn-outline-light{background:transparent;color:var(--on-dark);border-color:rgba(250,250,247,0.4)}
.btn-outline-light:hover{background:var(--on-dark);color:var(--ink)}
.btn[disabled]{opacity:0.5;pointer-events:none}

.magnetic{display:inline-block;transition:transform var(--dur-fast) var(--ease-soft)}

/* ==========================================================================
   Navigation — flat, minimal, hairline border. No blur/glass.
   ========================================================================== */
#site-nav{
  position:fixed;inset:0 0 auto 0;z-index:900;height:var(--nav-h);
  display:flex;align-items:center;
  background:var(--paper);
  border-bottom:1px solid transparent;
  transition:border-color var(--dur) var(--ease);
}
#site-nav.scrolled{border-bottom-color:var(--border)}
.nav-inner{width:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:flex;flex-direction:column;line-height:1}
.brand-name{font-family:var(--font-display);font-size:18px;font-weight:800;letter-spacing:-0.02em;color:var(--ink)}
.brand-name span{color:var(--orange)}
.brand-sub{font-family:var(--font-mono);font-size:9px;letter-spacing:0.16em;color:var(--slate);text-transform:uppercase;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:36px}
.nav-links a{
  font-size:12.5px;font-weight:600;letter-spacing:0.02em;color:var(--ink-soft);
  position:relative;padding-block:6px;transition:color var(--dur-fast) var(--ease);
}
.nav-links a::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur-fast) var(--ease);
}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{display:flex;align-items:center;gap:18px}
.nav-menu-btn{display:none;flex-direction:column;gap:5px;width:26px}
.nav-menu-btn span{display:block;height:2px;background:var(--ink);transition:transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease)}

#mobile-nav{
  position:fixed;inset:0;z-index:1000;background:var(--paper);
  display:flex;flex-direction:column;padding:100px var(--gutter) 40px;
  transform:translateY(-100%);transition:transform var(--dur-slow) var(--ease);
}
#mobile-nav.open{transform:translateY(0)}
#mobile-nav a{font-family:var(--font-display);font-size:32px;font-weight:800;letter-spacing:-0.02em;padding-block:14px;border-bottom:1px solid var(--border);display:block}

/* ==========================================================================
   Footer
   ========================================================================== */
footer{background:var(--dark);color:var(--on-dark);padding-block:72px 28px}
.foot-grid{display:grid;grid-template-columns:1.4fr 0.8fr 1fr 1.1fr;gap:48px;padding-bottom:56px}
.foot-brand-name{font-family:var(--font-display);font-size:22px;font-weight:800;letter-spacing:-0.02em}
.foot-brand-accent{color:var(--orange)}
.foot-brand-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:0.14em;color:#9A9990;text-transform:uppercase;margin:6px 0 18px}
.foot-desc{font-size:13.5px;color:#C9C8C0;line-height:1.7;max-width:34ch}
.foot-col-title{font-size:11px;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--orange);margin-bottom:18px}
.foot-links li{margin-bottom:11px}
.foot-links a{font-size:13.5px;color:#C9C8C0;transition:color var(--dur-fast)}
.foot-links a:hover{color:var(--orange)}
.foot-info{font-size:13.5px;color:#C9C8C0;line-height:1.9}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:24px;border-top:1px solid #2E2E2B;flex-wrap:wrap;gap:14px}
.foot-copy{font-size:12px;color:#8B8A82}
.foot-admin-link{font-size:11px;color:#5C5B54;letter-spacing:0.04em}
.foot-admin-link:hover{color:#8B8A82}

/* ==========================================================================
   Stat / counter blocks
   ========================================================================== */
.stat{display:flex;flex-direction:column;gap:2px}
.stat-num{font-family:var(--font-display);font-size:clamp(34px,4vw,56px);font-weight:800;letter-spacing:-0.03em;color:var(--ink);line-height:1}
.band-dark .stat-num{color:var(--on-dark)}
.stat-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--slate)}
.band-dark .stat-label{color:#9A9990}

/* ==========================================================================
   Cards — sharp corners, hairline border, invert on hover instead of lift+glow
   ========================================================================== */
.card{
  background:var(--white);border:1px solid var(--border);
  transition:background var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.project-card{position:relative;overflow:hidden;aspect-ratio:4/5;display:block;background:var(--paper-dim);border:1px solid var(--border)}
.project-card img{width:100%;height:100%;object-fit:cover;filter:grayscale(0.55) contrast(1.05);transition:transform 0.7s var(--ease), filter 0.4s var(--ease)}
.project-card:hover img{transform:scale(1.05);filter:grayscale(0) contrast(1.05)}
.project-card .pc-overlay{
  position:absolute;inset:0;
  background:linear-gradient(to top, rgba(18,18,18,0.92) 0%, rgba(18,18,18,0.35) 45%, rgba(18,18,18,0) 68%);
}
.project-card .pc-body{position:absolute;left:0;right:0;bottom:0;padding:20px}
.project-card .pc-cat{font-family:var(--font-mono);font-size:9.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--orange-lt);margin-bottom:8px;display:block}
.project-card .pc-name{font-family:var(--font-display);font-size:19px;font-weight:800;letter-spacing:-0.01em;line-height:1.2;color:var(--white);margin-bottom:6px}
.project-card .pc-meta{font-size:11.5px;color:#D8D7CF}
.project-card .pc-div{
  position:absolute;top:14px;left:14px;font-family:var(--font-mono);font-size:9px;letter-spacing:0.08em;
  padding:5px 9px;background:var(--paper);border:1px solid var(--ink);color:var(--ink);
}

/* Skeleton loader — shown immediately while getAllProjects() resolves, so the
   grid never sits blank during the Firestore round-trip. Swapped for real
   cards as soon as data arrives; falls back to a static tint if the user
   prefers reduced motion. */
.skeleton-card{position:relative;overflow:hidden;aspect-ratio:4/5;background:var(--paper-dim);border:1px solid var(--border)}
.skeleton-card::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(100deg, transparent 30%, rgba(18,18,18,0.06) 50%, transparent 70%);
  background-size:200% 100%;
  animation:mm-skeleton-shimmer 1.6s ease-in-out infinite;
}
@keyframes mm-skeleton-shimmer{from{background-position:150% 0}to{background-position:-50% 0}}
@media (prefers-reduced-motion: reduce){.skeleton-card::after{animation:none;background:rgba(18,18,18,0.05)}}

/* No-photo placeholder for projects without curated photography */
.no-photo{
  width:100%;height:100%;position:relative;
  background:
    repeating-linear-gradient(45deg, transparent, transparent 8px, var(--border) 8px, var(--border) 9px),
    var(--paper-dim);
  display:flex;align-items:center;justify-content:center;
}
.no-photo::before{
  content:'';width:44px;height:44px;border:1.5px solid var(--slate-lt);
}

.service-card{padding:34px 28px;background:var(--white);border:1px solid var(--border);transition:background var(--dur) var(--ease), color var(--dur) var(--ease)}
.service-card:hover{background:var(--ink)}
.service-card:hover .h3,.service-card:hover .small{color:var(--on-dark)}
.service-card:hover .service-tag{border-color:rgba(250,250,247,0.35);color:#D8D7CF}
.service-tag{
  font-family:var(--font-mono);font-size:10px;letter-spacing:0.05em;color:var(--slate);
  border:1px solid var(--border-dk);padding:5px 10px;display:inline-block;
  transition:border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

/* ==========================================================================
   Filter pills (projects index)
   ========================================================================== */
.filter-row{display:flex;flex-wrap:wrap;gap:8px}
.filter-pill{
  font-family:var(--font-mono);font-size:11px;letter-spacing:0.04em;
  padding:9px 15px;border:1px solid var(--border-dk);color:var(--ink-soft);
  transition:all var(--dur-fast) var(--ease);
}
.filter-pill:hover{border-color:var(--ink);color:var(--ink)}
.filter-pill.active{background:var(--ink);border-color:var(--ink);color:var(--white)}
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2px}
.project-grid[data-filtering] .project-card{transition:opacity 0.3s var(--ease)}
.project-card.hide{opacity:0;pointer-events:none;position:absolute;visibility:hidden}

/* ==========================================================================
   Spec-sheet / drawing title-block (project detail)
   ========================================================================== */
.spec-sheet{
  border:1px solid var(--ink);background:var(--white);
  display:grid;grid-template-columns:repeat(4,1fr);
}
.spec-cell{padding:18px 20px;border-right:1px solid var(--border);border-bottom:1px solid var(--border)}
.spec-cell:nth-child(4n){border-right:none}
.spec-cell-label{font-family:var(--font-mono);font-size:9.5px;letter-spacing:0.12em;text-transform:uppercase;color:var(--slate);margin-bottom:8px}
.spec-cell-value{font-size:14.5px;color:var(--ink);line-height:1.4;font-weight:500}

/* ==========================================================================
   Timeline (about page)
   ========================================================================== */
.timeline{position:relative;padding-left:48px}
.timeline::before{content:'';position:absolute;left:5px;top:6px;bottom:6px;width:1px;background:var(--border)}
.timeline-item{position:relative;padding-bottom:56px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-48px;top:4px;width:11px;height:11px;border:2px solid var(--orange);background:var(--paper)}
.timeline-year{font-family:var(--font-mono);font-size:13px;color:var(--orange-dk);letter-spacing:0.04em;margin-bottom:10px;display:block}
.timeline-title{font-family:var(--font-display);font-size:22px;font-weight:800;letter-spacing:-0.015em;margin-bottom:10px}
.timeline-desc{font-size:14.5px;color:var(--ink-soft);line-height:1.75;max-width:56ch}

/* ==========================================================================
   Forms
   ========================================================================== */
.field{display:flex;flex-direction:column;gap:9px}
.field-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:0.08em;text-transform:uppercase;color:var(--ink-soft)}
.field-label .req{color:var(--orange-dk);font-weight:400;text-transform:none;letter-spacing:0;margin-left:6px;font-family:var(--font-body);font-size:10.5px}
.field input,.field select,.field textarea{
  background:var(--white);border:1px solid var(--border-dk);padding:13px 15px;
  font-size:14px;color:var(--ink);transition:border-color var(--dur-fast);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--ink)}
.field textarea{resize:vertical;min-height:120px}
.field.error input,.field.error select,.field.error textarea{border-color:var(--danger)}
.field-err{font-size:11.5px;color:var(--danger);display:none}
.field.error .field-err{display:block}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-full{grid-column:1/-1}
.upload-zone{
  border:1.5px dashed var(--border-dk);padding:28px;text-align:center;cursor:pointer;
  transition:border-color var(--dur-fast), background var(--dur-fast);
}
.upload-zone:hover,.upload-zone.dragover{border-color:var(--ink);background:var(--paper-dim)}
.file-chip{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-soft);
  border:1px solid var(--border-dk);padding:6px 10px;margin:6px 6px 0 0;
}
.file-chip button{color:var(--danger);font-size:13px;line-height:1}

/* ==========================================================================
   Toast / misc utility widgets
   ========================================================================== */
.toast{
  position:fixed;bottom:28px;left:50%;transform:translate(-50%,20px);z-index:1200;
  background:var(--ink);color:var(--white);border:1px solid var(--ink);padding:14px 22px;font-size:13px;
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.toast.show{opacity:1;transform:translate(-50%,0)}

#btt{
  position:fixed;right:26px;bottom:26px;z-index:500;width:44px;height:44px;
  background:var(--ink);border:1px solid var(--ink);color:var(--white);
  display:flex;align-items:center;justify-content:center;font-size:16px;
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity var(--dur-fast), transform var(--dur-fast), background var(--dur-fast);
}
#btt.show{opacity:1;transform:translateY(0);pointer-events:auto}
#btt:hover{background:var(--orange)}

/* Lightbox (project gallery) */
#lightbox{
  position:fixed;inset:0;z-index:1300;background:rgba(18,18,18,0.96);
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity var(--dur) var(--ease-soft);
}
#lightbox.open{opacity:1;pointer-events:auto}
#lightbox img{max-width:88vw;max-height:82vh;object-fit:contain;transition:opacity 0.3s var(--ease)}
#lightbox .lb-close,#lightbox .lb-nav{
  position:absolute;color:var(--white);background:transparent;border:1px solid rgba(250,250,247,0.4);
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;transition:background var(--dur-fast);
}
#lightbox .lb-close:hover,#lightbox .lb-nav:hover{background:rgba(250,250,247,0.12)}
#lightbox .lb-close{top:24px;right:24px}
#lightbox .lb-prev{left:24px;top:50%;transform:translateY(-50%)}
#lightbox .lb-next{right:24px;top:50%;transform:translateY(-50%)}
#lightbox .lb-count{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);font-family:var(--font-mono);font-size:12px;color:#C9C8C0}

/* Responsive */
@media (max-width: 980px){
  .nav-links,.nav-cta .btn{display:none}
  .nav-menu-btn{display:flex}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px 24px}
  .project-grid{grid-template-columns:repeat(2,1fr)}
  .spec-sheet{grid-template-columns:repeat(2,1fr)}
  .spec-cell:nth-child(4n){border-right:1px solid var(--border)}
  .spec-cell:nth-child(2n){border-right:none}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width: 640px){
  .foot-grid{grid-template-columns:1fr}
  .project-grid{grid-template-columns:1fr}
  .spec-sheet{grid-template-columns:1fr}
  .spec-cell{border-right:none !important}
  #site-nav .nav-cta .btn-outline{display:none}
}