* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
               "Noto Sans KR", sans-serif;
  background: #0f1419;
  color: #d7dde4;
  font-size: 13px;
  line-height: 1.5;
}

/* ============== login page ============== */

body.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}
.login-card {
  background: #131920;
  border: 1px solid #1f2630;
  border-radius: 10px;
  padding: 32px 36px;
  width: 100%;
  max-width: 360px;
}
.login-card h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 600;
  color: #f0f3f7;
}
.login-sub {
  margin: 0 0 24px;
  color: #6c8a9e;
  font-size: 13px;
}
.login-error {
  background: #401e22;
  border: 1px solid #c66;
  color: #ffd0d0;
  border-radius: 5px;
  padding: 8px 12px;
  margin-bottom: 16px;
  font-size: 13px;
}
.login-card form { display: flex; flex-direction: column; gap: 14px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; }
.login-card label > span {
  color: #8ea1b3;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.login-card input[type=text],
.login-card input[type=password] {
  background: #1c232c;
  color: #f0f3f7;
  border: 1px solid #2d3742;
  border-radius: 5px;
  padding: 9px 11px;
  font-family: inherit;
  font-size: 14px;
}
.login-card input:focus { outline: none; border-color: #5fa8d3; }
.login-card button {
  background: #2f6f4a;
  color: #f0fff5;
  border: 1px solid #3a8a5b;
  padding: 9px 12px;
  border-radius: 5px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  margin-top: 4px;
}
.login-card button:hover { background: #38895a; }

/* ============== app shell ============== */

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: #11161c;
  border-bottom: 1px solid #1f2630;
  gap: 14px;
}
header h1 {
  font-size: 15px;
  font-weight: 600;
  margin: 0;
  color: #f0f3f7;
  white-space: nowrap;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
}
.header-right button,
.header-right .logout-link {
  background: #1c232c;
  color: #d7dde4;
  border: 1px solid #2d3742;
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
}
.header-right button:hover,
.header-right .logout-link:hover { background: #232b35; }
.auto-refresh { display: flex; align-items: center; gap: 4px; color: #8ea1b3; }

#gpu-strip { display: flex; gap: 6px; font-size: 11px; }
.gpu-card {
  background: #1a2129;
  border: 1px solid #28313c;
  border-radius: 4px;
  padding: 3px 7px;
  display: flex;
  flex-direction: column;
  min-width: 78px;
}
.gpu-card .gpu-idx  { color: #6c8a9e; font-size: 9px; }
.gpu-card .gpu-mem  { font-weight: 600; }
.gpu-card .gpu-util { color: #5fd87a; }
.gpu-card .gpu-util.hot { color: #ffb84a; }

main {
  padding: 10px;
}

/* ============== 3-column layout ============== */

.monitor-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.col {
  background: #131920;
  border: 1px solid #1f2630;
  border-radius: 6px;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.col-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid #1f2630;
  padding-bottom: 6px;
  margin-bottom: 10px;
  gap: 6px;
}
.col-header h2 {
  font-size: 14px;
  font-weight: 600;
  color: #e9eef4;
  margin: 0;
}
.col-header .run-name {
  font-size: 11px;
  color: #6c8a9e;
  text-align: right;
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  margin-bottom: 10px;
}
.summary .cell {
  background: #1a2129;
  border: 1px solid #28313c;
  border-radius: 3px;
  padding: 4px 6px;
}
.summary .cell .k { color: #6c8a9e; font-size: 9px; text-transform: uppercase; letter-spacing: 0.4px; }
.summary .cell .v { font-size: 13px; font-weight: 600; color: #f0f3f7; }

.chart-block { margin-bottom: 10px; }
.chart-block h3,
.col-infer h3,
.result-col h3 {
  font-size: 10px;
  font-weight: 500;
  color: #8ea1b3;
  margin: 0 0 4px;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}
.chart-block canvas {
  background: #0f1419;
  border: 1px solid #1f2630;
  border-radius: 4px;
  width: 100% !important;
  max-height: 170px;
}

/* ---- per-column inference ---- */

.col-infer {
  margin-top: 6px;
  padding-top: 10px;
  border-top: 1px solid #1f2630;
}
.col-infer h3 {
  font-size: 11px;
  color: #b6c4d4;
  margin-bottom: 6px;
}
.col-infer .ckpt-info {
  font-size: 10px;
  color: #6c8a9e;
  margin-bottom: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.upload-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
}
.upload-row input[type=file] {
  flex: 1;
  background: #1c232c;
  color: #d7dde4;
  border: 1px solid #2d3742;
  padding: 3px;
  border-radius: 4px;
  font-size: 11px;
  font-family: inherit;
  min-width: 0;
}
.upload-row button {
  background: #2f6f4a;
  color: #f0fff5;
  border: 1px solid #3a8a5b;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}
.upload-row button:hover { background: #38895a; }
.upload-row button:disabled { opacity: 0.5; cursor: wait; }

.col-infer .img-preview {
  width: 100%;
  max-height: 180px;
  object-fit: contain;
  background: #000;
  border: 1px solid #1f2630;
  border-radius: 4px;
  display: block;
  margin-bottom: 6px;
}
.col-infer .img-preview:not([src]),
.col-infer .img-preview[src=""] {
  display: none;
}

.pred-row {
  display: grid;
  grid-template-columns: 54px 1fr 44px 24px;
  align-items: center;
  gap: 6px;
  padding: 2px 0;
  border-bottom: 1px dashed #1f2630;
  font-size: 11px;
}
.pred-row:last-child { border-bottom: none; }
.pred-row .label { color: #e9eef4; font-weight: 600; }
.pred-row .bar {
  background: #1c232c;
  border-radius: 2px;
  height: 7px;
  position: relative;
  overflow: hidden;
}
.pred-row .bar > span {
  display: block;
  background: linear-gradient(90deg, #4677a8 0%, #5fa8d3 100%);
  height: 100%;
}
.pred-row.positive .bar > span {
  background: linear-gradient(90deg, #2f6f4a 0%, #5fd87a 100%);
}
.pred-row .bar > .threshold {
  position: absolute;
  top: -2px; bottom: -2px;
  width: 1px;
  background: #c66;
  left: 50%;
}
.pred-row .prob { text-align: right; font-variant-numeric: tabular-nums; color: #d7dde4; }
.pred-row .verdict {
  text-align: center;
  font-size: 9px;
  font-weight: 700;
  padding: 1px 3px;
  border-radius: 3px;
  text-transform: uppercase;
}
.pred-row.positive .verdict { background: #2f6f4a; color: #fff; }
.pred-row.negative .verdict { background: #2a323d; color: #6c8a9e; }

.muted {
  color: #6c8a9e;
  font-size: 10px;
  margin-top: 4px;
}

/* ============== responsive ============== */

@media (max-width: 1280px) {
  .monitor-row { grid-template-columns: 1fr; }
}