/* ==========================================================================
   PDF TOOLKIT — STYLES
   Extends global design tokens from assets/css/style.css
   ========================================================================== */

.breadcrumb{padding:14px 0; font-size:13px; color:var(--muted);}
.breadcrumb ol{display:flex; gap:6px; flex-wrap:wrap;}
.breadcrumb li:not(:last-child)::after{content:"›"; margin-left:6px; color:var(--muted);}
.breadcrumb a{color:var(--teal); font-weight:600;}
.breadcrumb li[aria-current]{color:var(--text); font-weight:600;}

/* ---------------- Hero ---------------- */
.pdfk-hero{
  background:linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color:#fff; padding:56px 0 44px; text-align:center; margin-bottom:34px;
}
.pdfk-hero h1{color:#fff; font-size:clamp(28px,4vw,40px);}
.pdfk-hero p{color:#CFE0F5; max-width:600px; margin:0 auto 24px; font-size:16.5px;}
.pdfk-hero-actions{display:flex; gap:14px; justify-content:center; flex-wrap:wrap;}

/* ---------------- Module Tabs ---------------- */
.pdfk-module-tabs{display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:22px;}
.pdfk-module-tab{
  background:var(--card); border:1.5px solid var(--border); color:var(--muted);
  padding:11px 20px; border-radius:12px; font-weight:700; font-size:14.5px; transition:.15s;
  box-shadow:var(--shadow);
}
.pdfk-module-tab:hover{border-color:var(--teal);}
.pdfk-module-tab.active{background:var(--navy); border-color:var(--navy); color:#fff;}
.pdfk-module-soon{font-size:12px; color:var(--muted); margin-left:auto;}

/* ---------------- Panels ---------------- */
.pdfk-panel{
  background:var(--card); border:1px solid var(--border); border-radius:var(--radius);
  padding:28px; box-shadow:var(--shadow); margin-bottom:24px;
}
.pdfk-panel h3{font-size:17px; margin-bottom:8px;}
.pdfk-panel-head{display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:10px;}
.pdfk-badge{
  background:rgba(18,165,148,.12); color:var(--teal); font-size:11.5px; font-weight:700;
  padding:4px 10px; border-radius:999px;
}
.pdfk-hint{font-size:13px; color:var(--muted); margin-bottom:18px;}
.pdfk-note{font-size:12px; color:var(--muted); margin:10px 0 16px;}

/* ---------------- Drop Zone ---------------- */
.pdfk-drop-zone{
  border:2px dashed var(--border); border-radius:14px; padding:40px 20px; text-align:center;
  background:var(--bg); transition:.2s; margin-bottom:18px;
}
.pdfk-drop-zone.pdfk-dragover{border-color:var(--teal); background:rgba(18,165,148,.06);}
.pdfk-drop-icon{font-size:36px; margin-bottom:10px;}
.pdfk-drop-zone h4{margin-bottom:4px; font-size:15px;}
.pdfk-drop-zone p{font-size:13px; color:var(--muted); margin-bottom:12px;}

/* ---------------- Merge File List ---------------- */
.pdfk-file-list{list-style:none; margin:0 0 6px; padding:0; display:grid; gap:10px;}
.pdfk-file-card{
  display:flex; align-items:center; gap:14px; background:var(--bg); border:1px solid var(--border);
  border-radius:12px; padding:10px 14px; cursor:grab;
}
.pdfk-file-card.dragging{opacity:.4;}
.pdfk-file-thumb{
  width:44px; height:56px; flex-shrink:0; background:#fff; border:1px solid var(--border); border-radius:4px;
  object-fit:cover;
}
.pdfk-file-meta{flex:1; min-width:0;}
.pdfk-file-meta .pdfk-file-name{font-weight:600; font-size:13.5px; white-space:nowrap; overflow:hidden; text-overflow:ellipsis;}
.pdfk-file-meta .pdfk-file-sub{font-size:12px; color:var(--muted);}
.pdfk-file-actions{display:flex; gap:4px; flex-shrink:0;}
.pdfk-icon-btn-sm{
  width:28px; height:28px; border-radius:7px; border:1px solid var(--border); background:var(--card);
  color:var(--text); display:flex; align-items:center; justify-content:center; font-size:13px;
}
.pdfk-icon-btn-sm:hover{border-color:var(--teal); color:var(--teal);}
.pdfk-icon-btn-sm.danger:hover{border-color:#E4572E; color:#E4572E;}

/* ---------------- Toolbar / Progress / Result ---------------- */
.pdfk-toolbar{display:flex; gap:10px; flex-wrap:wrap; margin-top:16px;}
.pdfk-progress{margin-top:18px;}
.pdfk-progress-bar{height:8px; background:var(--border); border-radius:6px; overflow:hidden;}
.pdfk-progress-fill{height:100%; width:0%; background:var(--teal); transition:width .2s;}
.pdfk-progress span{font-size:12.5px; color:var(--muted); display:block; margin-top:6px;}
.pdfk-result{margin-top:18px; border-top:1px solid var(--border); padding-top:16px;}
.pdfk-success{color:var(--teal); font-weight:700; font-size:14px; margin-bottom:4px;}
.pdfk-status-msg{margin-top:12px; font-size:13.5px; font-weight:600; min-height:18px;}
.pdfk-status-msg.ok{color:var(--teal);}
.pdfk-status-msg.err{color:#E4572E;}

/* ---------------- Compress Preview Card ---------------- */
.pdfk-preview-card{
  display:flex; gap:18px; align-items:flex-start; background:var(--bg); border:1px solid var(--border);
  border-radius:12px; padding:16px; margin-bottom:18px;
}
#compressThumbnail{width:90px; border:1px solid var(--border); border-radius:6px; background:#fff; flex-shrink:0;}
.pdfk-preview-info p{margin-bottom:6px; font-size:14.5px;}
.pdfk-preview-info span{display:block; font-size:12.5px; color:var(--muted); margin-bottom:2px;}

/* ---------------- Compression Options ---------------- */
.pdfk-compress-options label{display:block; font-size:13.5px; font-weight:700; margin:14px 0 8px; color:var(--text);}
.pdfk-level-buttons{display:flex; gap:8px; flex-wrap:wrap; margin-bottom:10px;}
.pdfk-level-btn{
  background:var(--bg); border:1.5px solid var(--border); color:var(--muted);
  padding:9px 18px; border-radius:9px; font-weight:600; font-size:13.5px; transition:.15s;
}
.pdfk-level-btn.active{background:var(--navy); border-color:var(--navy); color:#fff;}
#compressSlider{width:100%; accent-color:var(--teal); margin-bottom:6px;}
.pdfk-radio-row{display:flex; gap:16px; flex-wrap:wrap; font-size:13.5px;}
.pdfk-radio-row label{display:flex !important; align-items:center; gap:6px; font-weight:500 !important; margin:0 !important;}

.pdfk-stats-row{display:flex; gap:24px; flex-wrap:wrap; margin-bottom:6px;}
.pdfk-stats-row div{display:flex; flex-direction:column; gap:2px;}
.pdfk-stats-row span{font-size:12px; color:var(--muted);}
.pdfk-stats-row strong{font-size:18px; color:var(--text);}

/* ---------------- Toasts ---------------- */
.pdfk-toast-container{
  position:fixed; bottom:20px; right:20px; z-index:500; display:flex; flex-direction:column; gap:10px;
}
.pdfk-toast{
  background:var(--navy); color:#fff; padding:12px 18px; border-radius:10px; font-size:13.5px; font-weight:600;
  box-shadow:var(--shadow-hover); max-width:320px; animation:pdfkToastIn .2s ease;
}
.pdfk-toast.err{background:#E4572E;}
.pdfk-toast.ok{background:var(--teal);}
@keyframes pdfkToastIn{from{opacity:0; transform:translateY(10px);} to{opacity:1; transform:translateY(0);}}

/* ---------------- Responsive ---------------- */
@media (max-width:640px){
  .pdfk-preview-card{flex-direction:column; align-items:center; text-align:center;}
  .pdfk-stats-row{gap:16px;}
}