/* ── Document Vault ── */
.dv-header{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.dv-header h2{margin:0;font-size:22px}
.dv-stats{display:flex;gap:16px;flex-wrap:wrap}
.dv-stat{display:flex;flex-direction:column;align-items:center;padding:10px 16px;background:rgba(46,49,54,.7);border:1px solid rgba(181,183,185,.10);border-radius:10px;min-width:80px}
.dv-stat .dv-stat-num{font-size:22px;font-weight:700;color:#fff}
.dv-stat .dv-stat-label{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-top:2px}

/* Categories bar */
.dv-categories{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:18px}
.dv-cat-btn{padding:8px 14px;border-radius:999px;border:1px solid rgba(181,183,185,.12);background:transparent;color:var(--muted);font-size:13px;cursor:pointer;transition:all .15s}
.dv-cat-btn:hover{border-color:rgba(140,106,62,.45);color:#fff}
.dv-cat-btn.active{background:var(--bronze);color:var(--ink);border-color:var(--bronze);font-weight:600}
.dv-cat-count{display:inline-flex;align-items:center;justify-content:center;background:rgba(181,183,185,.12);border-radius:999px;font-size:10px;min-width:18px;height:18px;padding:0 5px;margin-left:4px}
.dv-cat-btn.active .dv-cat-count{background:rgba(15,17,20,.25);color:var(--ink)}

/* Search bar */
.dv-search-bar{display:flex;gap:10px;margin-bottom:18px;align-items:center}
.dv-search-input{flex:1;border-radius:12px;padding:12px 14px 12px 40px;background:rgba(181,183,185,.06);border:1px solid rgba(181,183,185,.14);color:var(--text);outline:none;font-size:14px;position:relative}
.dv-search-input:focus{border-color:rgba(140,106,62,.55)}
.dv-search-wrap{position:relative;flex:1}
.dv-search-wrap svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;color:var(--muted);pointer-events:none}
.dv-search-wrap .dv-search-input{width:100%}
.dv-project-filter{min-width:180px}

/* Document grid */
.dv-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:14px}
.dv-card{background:linear-gradient(180deg,rgba(46,49,54,.96),rgba(46,49,54,.82));border:1px solid rgba(181,183,185,.10);border-radius:var(--r);padding:16px;transition:border-color .15s;cursor:pointer;position:relative}
.dv-card:hover{border-color:rgba(140,106,62,.30)}
.dv-card-head{display:flex;align-items:flex-start;gap:12px;margin-bottom:10px}
.dv-card-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.dv-card-icon svg{width:22px;height:22px}
.dv-card-icon.contracts{background:rgba(140,106,62,.18);color:var(--bronze)}
.dv-card-icon.permits{background:rgba(76,175,80,.15);color:#4caf50}
.dv-card-icon.drawings-and-plans{background:rgba(33,150,243,.15);color:#2196f3}
.dv-card-icon.safety-documents{background:rgba(244,67,54,.15);color:#f44336}
.dv-card-icon.inspection-reports{background:rgba(255,152,0,.15);color:#ff9800}
.dv-card-icon.warranties{background:rgba(156,39,176,.15);color:#9c27b0}
.dv-card-title{font-size:15px;font-weight:600;color:#fff;margin:0 0 2px}
.dv-card-meta{font-size:12px;color:var(--muted)}
.dv-card-desc{font-size:13px;color:var(--muted);line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.dv-card-footer{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.dv-card-tags{display:flex;gap:4px;flex-wrap:wrap}
.dv-tag{font-size:11px;padding:3px 8px;border-radius:999px;background:rgba(181,183,185,.08);color:var(--muted);border:1px solid rgba(181,183,185,.08)}
.dv-tag.cat{background:rgba(140,106,62,.12);color:var(--bronze);border-color:rgba(140,106,62,.20)}
.dv-card-version{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:4px}
.dv-card-version svg{width:12px;height:12px}
.dv-card-actions{position:absolute;top:12px;right:12px;display:flex;gap:4px}
.dv-action-btn{width:28px;height:28px;border-radius:8px;border:1px solid rgba(181,183,185,.10);background:rgba(46,49,54,.9);color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s}
.dv-action-btn:hover{border-color:rgba(140,106,62,.40);color:#fff}
.dv-action-btn svg{width:14px;height:14px}

/* Upload zone */
.dv-upload-zone{border:2px dashed rgba(140,106,62,.35);border-radius:var(--r);padding:40px 20px;text-align:center;cursor:pointer;transition:all .2s;background:rgba(140,106,62,.04);margin-bottom:18px}
.dv-upload-zone:hover,.dv-upload-zone.dragover{border-color:var(--bronze);background:rgba(140,106,62,.10)}
.dv-upload-zone svg{width:44px;height:44px;color:var(--bronze);margin-bottom:10px}
.dv-upload-zone p{margin:0;color:var(--muted);font-size:14px}
.dv-upload-zone .dv-upload-cta{color:var(--bronze);font-weight:600;cursor:pointer}
.dv-upload-zone .dv-upload-hint{font-size:12px;margin-top:6px;color:rgba(181,183,185,.5)}
.dv-upload-preview{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.dv-upload-file{display:flex;align-items:center;gap:8px;padding:8px 12px;background:rgba(46,49,54,.8);border:1px solid rgba(181,183,185,.10);border-radius:10px;font-size:13px;color:var(--text)}
.dv-upload-file svg{width:16px;height:16px;color:var(--bronze);flex-shrink:0}
.dv-upload-file .dv-remove-file{width:20px;height:20px;border-radius:50%;border:none;background:rgba(244,67,54,.15);color:#f44336;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;margin-left:4px}

/* Upload form */
.dv-upload-form{display:grid;gap:12px;max-width:680px}
.dv-upload-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}

/* Modal / detail panel */
.dv-modal-overlay{position:fixed;inset:0;background:rgba(15,17,20,.75);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;opacity:0;pointer-events:none;transition:opacity .2s}
.dv-modal-overlay.open{opacity:1;pointer-events:all}
.dv-modal{background:var(--graphite);border:1px solid rgba(181,183,185,.12);border-radius:var(--r);max-width:640px;width:100%;max-height:85vh;overflow-y:auto;padding:24px}
.dv-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:16px}
.dv-modal-head h3{margin:0;font-size:18px;color:#fff}
.dv-modal-close{width:32px;height:32px;border-radius:8px;border:1px solid rgba(181,183,185,.12);background:transparent;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.dv-modal-close:hover{color:#fff;border-color:rgba(140,106,62,.40)}
.dv-detail-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid rgba(181,183,185,.06);font-size:13px}
.dv-detail-label{color:var(--muted)}
.dv-detail-value{color:#fff;font-weight:500}

/* Version history */
.dv-version-list{margin-top:14px}
.dv-version-item{display:flex;align-items:center;gap:12px;padding:10px 12px;background:rgba(181,183,185,.04);border:1px solid rgba(181,183,185,.06);border-radius:10px;margin-bottom:6px;font-size:13px}
.dv-version-num{width:28px;height:28px;border-radius:8px;background:rgba(140,106,62,.15);color:var(--bronze);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;flex-shrink:0}
.dv-version-info{flex:1}
.dv-version-info strong{color:#fff;display:block;font-size:13px}
.dv-version-info span{color:var(--muted);font-size:11px}

/* Permissions badges */
.dv-perm-badge{display:inline-flex;align-items:center;gap:4px;font-size:11px;padding:3px 8px;border-radius:999px;font-weight:600}
.dv-perm-badge.full{background:rgba(76,175,80,.15);color:#4caf50}
.dv-perm-badge.limited{background:rgba(255,152,0,.15);color:#ff9800}
.dv-perm-badge.view-only{background:rgba(33,150,243,.15);color:#2196f3}

/* Empty state */
.dv-empty{text-align:center;padding:48px 20px;color:var(--muted)}
.dv-empty svg{width:48px;height:48px;color:rgba(181,183,185,.25);margin-bottom:12px}
.dv-empty p{margin:0;font-size:14px}

/* Toast */
.dv-toast{position:fixed;bottom:20px;right:20px;padding:12px 20px;border-radius:10px;background:var(--graphite);border:1px solid rgba(140,106,62,.40);color:#fff;font-size:13px;z-index:200;opacity:0;transform:translateY(10px);transition:all .25s;pointer-events:none}
.dv-toast.show{opacity:1;transform:translateY(0);pointer-events:all}

/* Tab bar */
.dv-tabs{display:flex;gap:4px;margin-bottom:18px;border-bottom:1px solid rgba(181,183,185,.10);padding-bottom:0}
.dv-tab{padding:10px 16px;font-size:13px;color:var(--muted);cursor:pointer;border-bottom:2px solid transparent;transition:all .15s;background:none;border-top:none;border-left:none;border-right:none}
.dv-tab:hover{color:#fff}
.dv-tab.active{color:#fff;border-bottom-color:var(--bronze)}

/* Responsive */
@media(max-width:900px){
  .dv-grid{grid-template-columns:1fr}
  .dv-upload-row{grid-template-columns:1fr}
  .dv-header{flex-direction:column;align-items:flex-start}
  .dv-stats{width:100%;justify-content:space-between}
}
@media(max-width:520px){
  .dv-categories{gap:4px}
  .dv-cat-btn{padding:6px 10px;font-size:12px}
  .dv-modal{padding:16px;max-height:90vh}
  .dv-stat{padding:8px 10px;min-width:60px}
  .dv-stat .dv-stat-num{font-size:18px}
}