:root{
  --navy: #16324A;
  --navy-deep: #0E2436;
  --paper: #F6F4EF;
  --card: #FFFFFF;
  --ink: #1D2733;
  --ink-soft: #5B6672;
  --line: #E4E0D6;
  --green: #2E8B67;
  --green-soft: #E4F3EC;
  --amber: #C98A1F;
  --amber-soft: #FBF1DE;
  --coral: #C15B4A;
  --coral-soft: #FBEBE7;
  --slate: #6C7A89;
  --slate-soft: #ECEEF0;
  --mono: 'IBM Plex Mono', monospace;
  --sans: 'Inter', -apple-system, sans-serif;
}

*{ box-sizing: border-box; }

body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}

.wrap{
  max-width: 1080px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.masthead{
  display: flex;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 40px;
}

.masthead-mark{
  flex: 0 0 auto;
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--navy);
  color: #fff;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.5px;
}

.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 600;
  margin-bottom: 8px;
}

.masthead h1{
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 10px;
  color: var(--navy-deep);
  letter-spacing: -0.01em;
}

.lede{
  color: var(--ink-soft);
  font-size: 15px;
  max-width: 640px;
  margin: 0;
}

.panel{
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px 32px 32px;
  margin-bottom: 24px;
}

.panel-head{
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px;
}

.step-index{
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  background: var(--navy);
  border-radius: 999px;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.panel-head h2{
  font-size: 18px;
  margin: 0;
  color: var(--navy-deep);
  font-weight: 700;
}

.panel-sub{
  color: var(--ink-soft);
  font-size: 14px;
  margin: 4px 0 20px;
  max-width: 700px;
}

.dropzone{
  border: 2px dashed var(--line);
  border-radius: 12px;
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  background: #FCFBF8;
}
.dropzone:hover, .dropzone.dragover{
  border-color: var(--green);
  background: var(--green-soft);
}

.dropzone-inner{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.dropzone-icon{
  font-size: 22px;
  color: var(--green);
}

.dropzone-text strong{
  display: block;
  font-size: 15px;
  color: var(--ink);
}
.dropzone-text span{
  font-size: 13px;
  color: var(--ink-soft);
}

.file-list{
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.file-row{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: #FCFBF8;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-size: 13.5px;
}

.file-row .fname{
  flex: 1 1 auto;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-row select{
  font-family: var(--sans);
  font-size: 12.5px;
  padding: 5px 8px;
  border-radius: 7px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.file-row .badge{
  font-family: var(--mono);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 999px;
  font-weight: 600;
}
.badge.matir{ background: var(--green-soft); color: var(--green); }
.badge.etiman{ background: var(--amber-soft); color: var(--amber); }
.badge.unknown{ background: var(--slate-soft); color: var(--slate); }

.file-row .remove{
  cursor: pointer;
  color: var(--coral);
  font-size: 15px;
  background: none;
  border: none;
  font-weight: 700;
  padding: 2px 6px;
}

.btn{
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: transform 0.08s, opacity 0.15s;
  margin-top: 22px;
}
.btn:active{ transform: scale(0.98); }
.btn:disabled{ opacity: 0.4; cursor: not-allowed; }

.btn-primary{
  background: var(--navy);
  color: #fff;
}
.btn-primary:hover:not(:disabled){ background: var(--navy-deep); }

.btn-secondary{
  background: #fff;
  color: var(--navy);
  border: 1.5px solid var(--navy);
}

.export-buttons{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.export-buttons .btn{ margin-top: 0; }

.log{
  background: var(--navy-deep);
  color: #D8E4EC;
  font-family: var(--mono);
  font-size: 12.5px;
  border-radius: 10px;
  padding: 18px 20px;
  max-height: 360px;
  overflow-y: auto;
  line-height: 1.7;
}
.log .l-ok::before{ content: "✓ "; color: #6FCF97; }
.log .l-warn::before{ content: "! "; color: #E0B341; }
.log .l-info{ color: #9DB3C2; }
.log .l-head{ color: #fff; font-weight: 600; margin-top: 10px; display: block; }

.stat-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card{
  background: #FCFBF8;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 18px;
}
.stat-card .stat-label{
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 6px;
}
.stat-card .stat-value{
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--navy-deep);
}
.stat-card .stat-sub{
  font-size: 11.5px;
  color: var(--slate);
  margin-top: 4px;
}

.chart-grid{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.chart-card{
  background: #FCFBF8;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 18px;
}
.chart-card h3{
  font-size: 13.5px;
  margin: 0 0 14px;
  color: var(--navy-deep);
  font-weight: 700;
}
.chart-card canvas{ max-height: 240px; }

.foot{
  text-align: center;
  font-size: 12.5px;
  color: var(--slate);
  margin-top: 36px;
}

@media (max-width: 620px){
  .masthead{ flex-direction: column; }
  .panel{ padding: 22px 18px 26px; }
}