/* MDM island — aligned with admin console (light, restrained). */
:root {
  --bg: #eef1f4;
  --bg-band: #e4e9ef;
  --panel: #ffffff;
  --ink: #15202b;
  --muted: #5f6e7c;
  --line: #d7dee6;
  --accent: #0f7a5f;
  --accent-hover: #0c6550;
  --accent-soft: #e6f5f0;
  --warn: #9a5b12;
  --warn-soft: #fff3e0;
  --danger: #b42318;
  --danger-soft: #fdeceb;
  --ok: #0f7a5f;
  --ok-soft: #e6f5f0;
  --shadow: 0 1px 2px rgba(21, 32, 43, 0.05), 0 10px 28px rgba(21, 32, 43, 0.04);
  --font: "Source Sans 3", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    linear-gradient(180deg, #f7f9fb 0%, var(--bg) 180px),
    var(--bg);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
}

.mdm-app { min-height: 100vh; }

.mdm-header {
  background: #15202b;
  color: #c5d0da;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.mdm-header-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.35rem 1.5rem 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-end;
}
.mdm-back {
  display: inline-block;
  color: rgba(197, 208, 218, 0.75);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  margin-bottom: 0.65rem;
}
.mdm-back:hover { color: #fff; }
.mdm-back::before { content: "← "; opacity: 0.7; }
.mdm-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.mdm-header h1 {
  margin: 0;
  color: #fff;
  font-size: 1.45rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.mdm-sub {
  margin: 0.35rem 0 0;
  font-size: 0.88rem;
  color: rgba(197, 208, 218, 0.72);
}
.mdm-header-meta {
  text-align: right;
  padding-bottom: 0.15rem;
}
.mdm-user-label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(197, 208, 218, 0.55);
  margin-bottom: 0.2rem;
}
.mdm-user {
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
}

.mdm-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--ok);
  background: rgba(31, 157, 122, 0.18);
  border: 1px solid rgba(31, 157, 122, 0.35);
  border-radius: 4px;
}

.mdm-body {
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.5rem 3.5rem;
}

.mdm-tabs {
  display: flex;
  gap: 0;
  margin: 0 0 1.25rem;
  border-bottom: 1px solid var(--line);
}
.mdm-tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 600 0.92rem var(--font);
  padding: 0.7rem 1rem;
  margin-bottom: -1px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}
.mdm-tab:hover { color: var(--ink); }
.mdm-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.mdm-main { display: grid; gap: 1rem; }
.mdm-panel { display: grid; gap: 1rem; }

.mdm-surface {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.35rem 1.35rem;
}
.mdm-surface-head { margin-bottom: 1rem; }
.mdm-surface-head-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}
.mdm-surface h2 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.mdm-muted {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
  max-width: 62ch;
}
.mdm-empty {
  margin: 0;
  padding: 1.5rem 0.25rem;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: #fafbfc;
}

.mdm-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
}
.mdm-stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.95rem 1rem;
  min-height: 88px;
}
.mdm-stat-k {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.45rem;
}
.mdm-stat-v {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink);
  word-break: break-all;
  line-height: 1.45;
}

.mdm-pre {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  background: #f6f8fa;
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.5;
  overflow: auto;
  white-space: pre-wrap;
  color: #334155;
}

.mdm-steps {
  margin: 1rem 0 0;
  padding-left: 1.15rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.mdm-steps li { margin: 0.4rem 0; line-height: 1.4; }

.pill {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}
.pill-ok { background: var(--ok-soft); color: var(--ok); }
.pill-warn { background: var(--warn-soft); color: var(--warn); }
.pill-off { background: #eef1f4; color: var(--muted); }

.mdm-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}
.mdm-btn {
  appearance: none;
  border: 0;
  border-radius: 6px;
  padding: 0.55rem 1rem;
  background: var(--accent);
  color: #fff;
  font: 600 0.9rem var(--font);
  cursor: pointer;
}
.mdm-btn:hover:not(:disabled) { background: var(--accent-hover); }
.mdm-btn-secondary {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--line);
}
.mdm-btn-secondary:hover:not(:disabled) { background: #f6f8fa; }
.mdm-btn-danger {
  background: #fff;
  color: var(--danger);
  border: 1px solid #f0c4c0;
}
.mdm-btn-danger:hover:not(:disabled) { background: var(--danger-soft); }
.mdm-btn-tiny {
  padding: 0.3rem 0.55rem;
  font-size: 0.78rem;
}
.mdm-btn:disabled { opacity: 0.55; cursor: default; }

.mdm-flash {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  padding: 0.7rem 0.9rem;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: #fff;
}
.mdm-flash.ok {
  color: var(--ok);
  background: var(--ok-soft);
  border-color: #bfe5d7;
}
.mdm-flash.err {
  color: var(--danger);
  background: var(--danger-soft);
  border-color: #f0c4c0;
}

.mdm-enroll {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-top: 1.15rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line);
}
.mdm-qr-frame {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem;
  box-shadow: inset 0 0 0 1px #f1f4f7;
}
.mdm-qr {
  display: block;
  width: 280px;
  height: 280px;
  image-rendering: pixelated;
}
.mdm-dl {
  margin: 0;
  display: grid;
  gap: 0.65rem;
}
.mdm-dl > div {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0.5rem;
  align-items: baseline;
}
.mdm-dl dt {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 600;
}
.mdm-dl dd { margin: 0; }
.mdm-dl code,
.mdm-mono,
.mdm-app-list code {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: #334155;
  word-break: break-all;
}

.mdm-table-wrap {
  overflow: auto;
  margin-top: 0.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.mdm-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.mdm-table th,
.mdm-table td {
  text-align: left;
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.mdm-table tr:last-child td { border-bottom: 0; }
.mdm-table th {
  background: #f6f8fa;
  color: var(--muted);
  font-weight: 650;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.mdm-table tbody tr:hover td { background: #fafbfc; }
.mdm-dev-title { font-weight: 650; color: var(--ink); }
.mdm-dev-sub {
  color: var(--muted);
  font-size: 0.75rem;
  font-family: var(--mono);
  margin-top: 0.2rem;
}
.mdm-row-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.mdm-app-form {
  display: grid;
  grid-template-columns: 1fr 180px auto;
  gap: 0.75rem;
  align-items: end;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.mdm-field {
  display: grid;
  gap: 0.35rem;
}
.mdm-field span {
  font-size: 0.78rem;
  font-weight: 650;
  color: var(--muted);
}
.mdm-app-form input,
.mdm-app-form select {
  width: 100%;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  padding: 0.55rem 0.7rem;
  font: 0.9rem var(--mono);
}
.mdm-app-form input:focus,
.mdm-app-form select:focus {
  outline: 2px solid rgba(15, 122, 95, 0.25);
  border-color: var(--accent);
}
.mdm-app-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.mdm-app-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--line);
}
.mdm-app-list li:last-child { border-bottom: 0; }

.mdm-play-frame {
  width: 100%;
  min-height: 520px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  margin-top: 0.75rem;
}

@media (max-width: 900px) {
  .mdm-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mdm-app-form { grid-template-columns: 1fr; }
  .mdm-enroll { grid-template-columns: 1fr; }
}
@media (max-width: 700px) {
  .mdm-header-inner { flex-direction: column; align-items: flex-start; }
  .mdm-header-meta { text-align: left; }
  .mdm-stats { grid-template-columns: 1fr; }
  .mdm-surface-head-row { flex-direction: column; }
  .mdm-qr { width: 220px; height: 220px; }
}