/* ══════════════════════════════════════════════════════
   AIMLSE Project Library (v2)
   Premium dark theme · Jan 2026
══════════════════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
:root{
  --bg:#08080c;
  --surface:#0e0e13;
  --surface2:#141419;
  --surface3:#1a1a21;
  --border:#202028;
  --border2:#2c2c3a;
  --text:#eeeef5;
  --text-dim:#8a8aa8;
  --text-muted:#44445a;
  --accent:#7c6fff;
  --accent2:#38bdf8;
  --green:#22c55e;
  --red:#ef4444;
  --gold:#f59e0b;
  --purple:#a855f7;
  --teal:#14b8a6;
  --font-ui:'Inter',sans-serif;
  --font-mono:'JetBrains Mono',monospace;
  --radius:8px;
  --card-radius:10px;
}
html,body{min-height:100%;background:var(--bg);color:var(--text);font-family:var(--font-ui);line-height:1.5;-webkit-font-smoothing:antialiased;}
a{color:inherit;text-decoration:none;}
button{cursor:pointer;font-family:var(--font-ui);border:none;outline:none;}
input,select,textarea{font-family:var(--font-ui);outline:none;}

/* ── Nav ──────────────────────────────────────────────── */
.top-nav{
  height:52px;
  background:rgba(8,8,12,.85);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;position:sticky;top:0;z-index:100;
}
.nav-left{display:flex;align-items:center;gap:10px;}
.nav-logo{display:flex;align-items:center;gap:9px;cursor:pointer;text-decoration:none;transition:opacity .15s;}
.nav-logo:hover{opacity:.8;}
.nav-logo-img{height:32px;width:32px;object-fit:contain;display:block;border-radius:6px;}
.nav-logo-name{
  font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  background:linear-gradient(135deg,#7c6fff,#38bdf8);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.nav-right{display:flex;align-items:center;gap:6px;}
.nav-link{
  background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);
  color:var(--text-dim);font-size:11px;font-weight:500;padding:5px 13px;transition:all .15s;
}
.nav-link:hover{color:var(--text);border-color:var(--border2);background:var(--surface3);}
.nav-link.active{background:var(--accent);color:#fff;border-color:var(--accent);}
button.nav-link{background:var(--surface2);border:1px solid var(--border);}
button.nav-link:hover{color:var(--text);border-color:var(--border2);background:var(--surface3);}

/* ── Page layout ──────────────────────────────────────── */
.page-wrapper{min-height:calc(100vh - 52px);}
main{max-width:1160px;margin:0 auto;padding:0 24px 64px;}

/* ── Page header ──────────────────────────────────────── */
.page-header{
  padding:40px 0 28px;
  border-bottom:1px solid var(--border);
  margin-bottom:0;
  position:relative;
}
.page-header::before{
  content:'';
  position:absolute;
  top:-52px;left:-24px;right:-24px;height:200px;
  background:radial-gradient(ellipse at 20% 50%,rgba(124,111,255,.06) 0,transparent 60%),
             radial-gradient(ellipse at 80% 50%,rgba(56,189,248,.04) 0,transparent 60%);
  pointer-events:none;
}
.page-header h1{
  font-size:24px;font-weight:800;letter-spacing:-.01em;margin-bottom:6px;
  background:linear-gradient(135deg,var(--text) 0%,var(--text-dim) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.page-header p{font-size:13px;color:var(--text-dim);margin-bottom:16px;}

#newProjectBtn{
  padding:8px 20px;
  background:var(--accent);border:none;border-radius:var(--radius);
  color:#fff;font-size:12px;font-weight:600;letter-spacing:.03em;
  transition:all .15s;box-shadow:0 0 20px rgba(124,111,255,.25);
}
#newProjectBtn:hover{opacity:.9;box-shadow:0 0 30px rgba(124,111,255,.4);transform:translateY(-1px);}

/* ── Filters ──────────────────────────────────────────── */
.filters-section{
  padding:14px 0;border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.filters-section strong{font-size:10px;color:var(--text-muted);letter-spacing:.06em;margin-right:2px;text-transform:uppercase;}
.filter-group{display:flex;flex-wrap:wrap;gap:5px;align-items:center;}
.filter-checkbox{
  display:flex;align-items:center;gap:4px;font-size:11px;color:var(--text-dim);
  cursor:pointer;padding:4px 11px;border-radius:20px;
  border:1px solid var(--border);background:var(--surface2);
  transition:all .15s;user-select:none;
}
.filter-checkbox input{width:11px;height:11px;margin:0;accent-color:var(--accent);}
.filter-checkbox:hover{color:var(--text);border-color:var(--border2);background:var(--surface3);}

.search-input{
  padding:7px 14px;background:var(--surface2);border:1px solid var(--border);
  border-radius:20px;font-size:12px;color:var(--text);
  min-width:220px;transition:all .15s;
}
.search-input::placeholder{color:var(--text-muted);}
.search-input:focus{border-color:var(--accent);background:var(--surface3);box-shadow:0 0 0 3px rgba(124,111,255,.1);}

/* ── Library sections ─────────────────────────────────── */
.library-section{padding:28px 0 20px;border-bottom:1px solid var(--border);}
.library-section:last-child{border-bottom:none;}

.section-header{
  display:flex;align-items:center;justify-content:space-between;
  margin-bottom:18px;flex-wrap:wrap;gap:8px;
}
.section-title-group{display:flex;align-items:center;gap:12px;}
.section-title-group h2{
  font-size:14px;font-weight:700;color:var(--text);letter-spacing:.01em;
}
.section-subtitle{font-size:11px;color:var(--text-dim);margin-top:3px;}
.section-count{
  font-size:10px;color:var(--text-muted);
  background:var(--surface3);border:1px solid var(--border);
  padding:2px 9px;border-radius:10px;font-weight:600;
}

.section-grid{display:flex;flex-direction:column;gap:12px;}
.subsection-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px;}
.subsection-label{
  font-size:9px;font-weight:700;color:var(--text-muted);letter-spacing:.1em;text-transform:uppercase;
  margin-bottom:6px;margin-top:8px;display:flex;align-items:center;gap:8px;
}

/* ── Cards ────────────────────────────────────────────── */
.project-card,.item-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--card-radius);
  overflow:hidden;
  transition:border-color .2s,transform .15s,box-shadow .2s;
  cursor:pointer;
  display:flex;
  flex-direction:column;
  position:relative;
}
.project-card::before,.item-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:var(--card-accent,var(--accent));
  border-radius:var(--card-radius) var(--card-radius) 0 0;
}
.project-card:hover,.item-card:hover{
  border-color:var(--border2);
  transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(0,0,0,.35),0 0 0 1px var(--border2);
}

.project-card-header,.item-card-header{
  padding:16px 16px 12px;flex:1;
}
.project-card-header h3,.item-card-header h3{
  font-size:14px;font-weight:700;color:var(--text);margin-bottom:6px;
  letter-spacing:-.01em;line-height:1.3;
}
.project-card-header p,.item-card-header p{
  font-size:12px;color:var(--text-dim);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.project-card-footer,.item-card-footer{
  padding:10px 16px;display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid var(--border);background:var(--surface2);gap:8px;flex-wrap:wrap;
}

/* ── Tags ─────────────────────────────────────────────── */
.project-tags,.item-tags{display:flex;gap:4px;flex-wrap:wrap;align-items:center;}
.tag,.category-tag{
  background:var(--surface3);color:var(--text-dim);border:1px solid var(--border2);
  padding:2px 7px;border-radius:8px;font-size:10px;font-weight:500;
  white-space:nowrap;
}
.type-tag{
  padding:2px 8px;border-radius:8px;font-size:10px;font-weight:700;
  white-space:nowrap;color:#fff;border:none;
}

/* ── Privacy badge, intentionally small ─────────────── */
.privacy-badge{
  display:inline-flex;align-items:center;gap:3px;
  padding:1px 6px;border-radius:8px;
  font-size:8px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
}
.privacy-badge.private{
  background:rgba(245,158,11,.08);color:#d4891a;border:1px solid rgba(245,158,11,.2);
}
.privacy-badge.public{
  background:rgba(34,197,94,.08);color:#16a34a;border:1px solid rgba(34,197,94,.2);
}

/* ── Card action buttons ──────────────────────────────── */
.project-actions,.item-actions{display:flex;gap:4px;flex-shrink:0;}
.project-actions button,.item-actions button{
  padding:4px 10px;border-radius:6px;font-size:10px;font-weight:600;
  border:1px solid var(--border2);background:var(--surface3);color:var(--text-dim);
  transition:all .12s;white-space:nowrap;
}
.project-actions button:hover,.item-actions button:hover{color:var(--text);border-color:var(--border2);background:var(--surface2);}

.view-btn{color:var(--accent2) !important;border-color:rgba(56,189,248,.25) !important;background:rgba(56,189,248,.06) !important;}
.view-btn:hover{background:rgba(56,189,248,.14) !important;}
.open-btn{color:var(--green) !important;border-color:rgba(34,197,94,.25) !important;background:rgba(34,197,94,.06) !important;}
.open-btn:hover{background:rgba(34,197,94,.14) !important;}
.edit-btn{color:var(--gold) !important;border-color:rgba(245,158,11,.25) !important;background:rgba(245,158,11,.06) !important;}
.edit-btn:hover{background:rgba(245,158,11,.16) !important;}
.delete-btn{color:var(--red) !important;border-color:rgba(239,68,68,.25) !important;background:rgba(239,68,68,.06) !important;}
.delete-btn:hover{background:rgba(239,68,68,.14) !important;}
.import-btn{background:var(--accent) !important;color:#fff !important;border-color:var(--accent) !important;box-shadow:0 2px 8px rgba(124,111,255,.2) !important;}
.import-btn:hover{opacity:.88;box-shadow:0 2px 14px rgba(124,111,255,.35) !important;}
.pipeline-btn{color:var(--accent2) !important;border-color:rgba(56,189,248,.25) !important;background:rgba(56,189,248,.06) !important;}
.pipeline-btn:hover{background:rgba(56,189,248,.14) !important;}
.remix-btn{color:var(--purple) !important;border-color:rgba(168,85,247,.25) !important;background:rgba(168,85,247,.06) !important;}
.remix-btn:hover{background:rgba(168,85,247,.14) !important;}

/* ── Empty / loading ──────────────────────────────────── */
.loading,.empty-state{
  text-align:center;padding:56px 24px;color:var(--text-muted);
  font-size:12px;grid-column:1/-1;line-height:1.8;
}
.loading::before{content:'';display:block;width:24px;height:24px;border:2px solid var(--border2);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite;margin:0 auto 14px;}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Shared buttons ───────────────────────────────────── */
.btn-primary{
  background:var(--accent);color:#fff;border:none;border-radius:var(--radius);
  font-size:11px;font-weight:600;padding:7px 16px;transition:all .15s;
  box-shadow:0 2px 8px rgba(124,111,255,.2);
}
.btn-primary:hover{opacity:.88;box-shadow:0 4px 14px rgba(124,111,255,.35);}
.btn-secondary{
  background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);
  color:var(--text-dim);font-size:11px;font-weight:500;padding:7px 16px;transition:all .15s;
}
.btn-secondary:hover{color:var(--text);border-color:var(--border2);background:var(--surface3);}
.btn-danger{
  background:rgba(239,68,68,.08);color:var(--red);border:1px solid rgba(239,68,68,.25);
  border-radius:var(--radius);font-size:11px;padding:7px 16px;transition:all .15s;
}
.btn-danger:hover{background:rgba(239,68,68,.16);}
.btn-small{padding:4px 10px;font-size:10px;}
.btn-browse{
  background:transparent;border:1px solid var(--border2);border-radius:var(--radius);
  padding:5px 13px;font-size:11px;color:var(--text-dim);transition:all .15s;font-weight:500;
}
.btn-browse:hover{color:var(--text);border-color:var(--accent);color:var(--accent);background:rgba(124,111,255,.06);}
.btn-submit{
  background:var(--accent);color:#fff;border:none;border-radius:var(--radius);
  font-size:11px;font-weight:600;padding:7px 16px;transition:all .15s;
}
.btn-submit:hover{opacity:.88;}

/* ── Grids (modal browse) ─────────────────────────────── */
.projects-grid,.items-grid{
  flex:1;padding:16px;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));
  gap:12px;overflow-y:auto;align-content:start;
}

/* ── Filter select ────────────────────────────────────── */
.filter-select{
  padding:5px 10px;background:var(--surface2);border:1px solid var(--border);
  border-radius:var(--radius);font-size:11px;color:var(--text);transition:border-color .15s;
}
.filter-select:focus{border-color:var(--accent);}
.filter-select option{background:var(--surface2);}

/* ── Modals ───────────────────────────────────────────── */
.modal{
  display:none;position:fixed;z-index:1000;inset:0;
  background:rgba(0,0,0,.7);backdrop-filter:blur(6px);
}
.modal-content{
  background:var(--surface);border:1px solid var(--border);border-radius:12px;
  margin:6% auto;padding:28px;width:90%;max-width:500px;position:relative;
  box-shadow:0 32px 80px rgba(0,0,0,.6);
}
.close{
  position:absolute;top:14px;right:18px;font-size:18px;
  color:var(--text-dim);cursor:pointer;background:none;border:none;
  line-height:1;transition:color .12s;
}
.close:hover{color:var(--text);}

/* ── Forms ────────────────────────────────────────────── */
.form-group{margin-bottom:16px;}
.form-group label{
  display:block;font-size:10px;font-weight:600;
  letter-spacing:.06em;color:var(--text-dim);margin-bottom:6px;text-transform:uppercase;
}
.form-group input,.form-group textarea,
#newProjectForm input,#newProjectForm textarea,
#collaboratorEmail{
  width:100%;padding:8px 12px;
  background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);
  font-size:13px;color:var(--text);transition:border-color .15s;
}
.form-group input:focus,.form-group textarea:focus,
#newProjectForm input:focus,#newProjectForm textarea:focus,
#collaboratorEmail:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(124,111,255,.1);}
.form-group input::placeholder,.form-group textarea::placeholder,
#newProjectForm input::placeholder,#newProjectForm textarea::placeholder,
#collaboratorEmail::placeholder{color:var(--text-muted);}
.form-group textarea,#newProjectForm textarea{resize:vertical;min-height:70px;}
#newProjectForm .form-group label input[type="checkbox"]{
  width:auto;margin-right:6px;accent-color:var(--accent);
}

/* ── Detail modal content ─────────────────────────────── */
#projectModal .modal-content,#itemModal .modal-content{max-width:800px;width:90%;}
#projectTitle,#itemTitle{font-size:16px;font-weight:700;color:var(--text);margin:0 0 10px;}
#projectDescription,#itemDescription{font-size:13px;color:var(--text-dim);line-height:1.65;margin-bottom:16px;}
#projectActions,#itemActions{display:flex;gap:8px;margin-bottom:14px;}
#projectContent,#itemContent{
  background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);
  padding:16px;margin-bottom:16px;min-height:140px;overflow-x:auto;
  font-family:var(--font-mono);font-size:11px;color:var(--text);line-height:1.6;
}
#itemMetadata{background:var(--surface2);border:1px solid var(--border);border-radius:var(--radius);padding:14px;margin-bottom:14px;}
#itemCode{
  width:100%;padding:12px;background:var(--surface2);border:1px solid var(--border);
  border-radius:var(--radius);font-family:var(--font-mono);font-size:11px;color:var(--text);resize:vertical;
}
#useItemBtn{background:rgba(34,197,94,.1);color:var(--green);border:1px solid rgba(34,197,94,.25);border-radius:var(--radius);padding:7px 16px;font-size:11px;font-weight:600;transition:all .12s;}
#useItemBtn:hover{background:rgba(34,197,94,.18);}
#viewDetailsBtn{background:rgba(56,189,248,.1);color:var(--accent2);border:1px solid rgba(56,189,248,.25);border-radius:var(--radius);padding:7px 16px;font-size:11px;font-weight:600;transition:all .12s;}
#viewDetailsBtn:hover{background:rgba(56,189,248,.18);}

/* ── Modal footer ─────────────────────────────────────── */
.modal-footer{margin-top:16px;text-align:center;font-size:11px;color:var(--text-muted);}
.modal-footer a{color:var(--accent);text-decoration:underline;}

/* ── Collaborators ────────────────────────────────────── */
#collaboratorsList{margin-bottom:10px;}
.collaborator-item{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 0;border-bottom:1px solid var(--border);
}
.collaborator-item:last-child{border-bottom:none;}
.collaborator-info{display:flex;align-items:center;gap:10px;}
.collaborator-avatar{
  width:30px;height:30px;background:rgba(124,111,255,.12);color:var(--accent);
  border:1px solid rgba(124,111,255,.25);border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:11px;
}
.collaborator-name{font-size:12px;font-weight:600;color:var(--text);}
.collaborator-permission{
  background:var(--surface3);color:var(--text-dim);border:1px solid var(--border);
  padding:2px 8px;border-radius:8px;font-size:10px;
}
#addCollaboratorSection{display:flex;gap:8px;margin-top:10px;align-items:center;}

/* ── New Project modal (np-*) ─────────────────────────── */
#newProjectModal .modal-content{max-width:600px;}
.np-modal{max-width:460px !important;padding:0 !important;overflow:hidden;border-radius:12px !important;}
#np-step-choice,#np-step-form,#np-step-upload{padding:28px 28px 24px;}

.np-header{margin-bottom:20px;}
.np-title{font-size:15px;font-weight:700;color:var(--text);line-height:1.2;}
.np-subtitle{font-size:12px;color:var(--text-dim);margin-top:5px;}

.np-choices{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px;}
.np-choice{
  display:flex;flex-direction:column;align-items:flex-start;gap:5px;
  padding:14px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--surface2);cursor:pointer;text-align:left;
  transition:border-color .15s,background .15s;
}
.np-choice:hover{border-color:var(--accent);background:rgba(124,111,255,.06);}
.np-choice.selected{border-color:var(--accent);background:rgba(124,111,255,.1);}
.np-choice-icon{font-size:20px;line-height:1;}
.np-choice-name{font-size:12px;font-weight:600;color:var(--text);}
.np-choice-desc{font-size:10px;color:var(--text-dim);line-height:1.4;}
.np-choice-hint{
  font-size:10px;color:var(--text-dim);background:var(--surface3);
  border:1px solid var(--border);border-radius:var(--radius);padding:8px 12px;margin-bottom:14px;
}
/* ── Install Extensions step ── */
.np-ext-list{display:flex;flex-direction:column;gap:8px;margin:6px 0 4px;max-height:320px;overflow-y:auto;}
.np-ext-card{
  display:flex;align-items:center;gap:12px;width:100%;
  padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--surface2);cursor:pointer;text-align:left;
  transition:border-color .15s,background .15s;
}
.np-ext-card:hover{border-color:var(--accent);background:rgba(124,111,255,.06);}
.np-ext-card.selected{border-color:var(--accent);background:rgba(124,111,255,.12);}
.np-ext-ic{font-size:22px;line-height:1;flex-shrink:0;}
.np-ext-body{display:flex;flex-direction:column;gap:3px;flex:1;min-width:0;}
.np-ext-name{font-size:12px;font-weight:600;color:var(--text);}
.np-ext-ver{font-size:9px;color:var(--text-dim);font-weight:400;}
.np-ext-desc{font-size:10px;color:var(--text-dim);line-height:1.4;}
.np-ext-meta{font-size:10px;color:var(--text-dim);flex-shrink:0;text-align:right;display:flex;align-items:center;gap:6px;}
.np-ext-count{font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.np-ext-check{opacity:0;color:var(--accent);font-weight:700;font-size:13px;transition:opacity .15s;}
.np-ext-card.selected .np-ext-check{opacity:1;}
.np-choice-actions{display:flex;justify-content:flex-end;}

.np-btn-primary{
  padding:8px 20px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius);
  font-size:12px;font-weight:600;letter-spacing:.03em;cursor:pointer;transition:all .15s;
  box-shadow:0 2px 8px rgba(124,111,255,.2);
}
.np-btn-primary:hover{opacity:.88;transform:translateY(-1px);}

.np-back{
  background:none;border:none;color:var(--accent);font-size:11px;font-weight:600;
  cursor:pointer;padding:0;margin-bottom:16px;display:inline-flex;align-items:center;gap:4px;
  transition:opacity .12s;
}
.np-back:hover{opacity:.7;}

/* ── Browse modal ─────────────────────────────────────── */
.browse-modal-content{
  max-width:940px;width:95%;max-height:86vh;
  display:flex;flex-direction:column;margin:5% auto;overflow:hidden;
}
.browse-controls{display:flex;gap:8px;margin:12px 0;flex-wrap:wrap;}
.browse-controls .search-input{flex:1;min-width:160px;}
.browse-grid{
  overflow-y:auto;padding:4px 0;
  max-height:calc(86vh - 210px);
  grid-template-columns:repeat(auto-fill,minmax(250px,1fr));
}

/* ── Folder move selector ─────────────────────────────── */
.folder-move-sel{
  font-size:10px;background:var(--surface3);border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text);padding:3px 8px;transition:border-color .12s;
  max-width:130px;
}
.folder-move-sel:focus{border-color:var(--accent);}
.folder-move-sel option{background:var(--surface3);}

/* ── Template reco cards ──────────────────────────────── */
.tmpl-reco-card:hover{background:rgba(124,111,255,.05) !important;}

/* ── Tabs ─────────────────────────────────────────────── */
.tab-content{display:flex;margin-bottom:12px;border-bottom:1px solid var(--border);gap:2px;}
.tab-btn{
  background:none;border:none;border-bottom:2px solid transparent;
  padding:8px 16px;font-size:11px;font-weight:600;color:var(--text-dim);
  cursor:pointer;position:relative;bottom:-1px;transition:color .12s,border-color .12s;
}
.tab-btn:hover{color:var(--text);}
.tab-btn.active{color:var(--accent);border-bottom-color:var(--accent);}
.tab-panel{display:none;animation:fadein .18s ease;}
.tab-panel.active{display:block;}
@keyframes fadein{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}

/* ── Scrollbar ────────────────────────────────────────── */
::-webkit-scrollbar{width:5px;height:5px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px;}
::-webkit-scrollbar-thumb:hover{background:var(--text-muted);}

/* ── Responsive ───────────────────────────────────────── */
@media(max-width:768px){
  main{padding:0 14px 40px;}
  .projects-grid,.items-grid{grid-template-columns:1fr;padding:10px;}
  .filters-section{padding:10px 0;}
  .modal-content{margin:10% auto;width:95%;}
  .np-choices{grid-template-columns:1fr;}
  .browse-modal-content{margin:2% auto;}
  .subsection-grid{grid-template-columns:1fr;}
  .page-header h1{font-size:20px;}

  .top-nav {
    flex-wrap: wrap;
    gap: 12px;
  }

  .nav-logo-img {
    width: 36px;
    height: 36px;
  }

  .nav-logo-name {
    display: none;
  }

  .nav-right {
    width: 100%;
    order: 3;
  }
}

@media(max-width:480px){
  main{padding:0 12px 20px;}
  .page-header{padding:20px 0;}
  .page-header h1{font-size:18px;}
  .page-header p{font-size:13px;}
  .section-header{flex-direction:column;gap:12px;}
  .btn-primary,.btn-browse,.btn-secondary{font-size:12px;padding:8px 16px;}
  .filter-checkbox label{font-size:12px;}
  .search-input{font-size:13px;padding:8px 12px;}
}