:root {
  --bg: #0b1220;
  --panel: #111a2e;
  --panel2: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --danger: #ef4444;
  --ok: #22c55e;
  --border: rgba(148, 163, 184, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(135deg, var(--bg), #020617);
  color: var(--text);
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

.panel {
  background: rgba(17, 26, 46, 0.9);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 23, 42, 0.75);
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  z-index: 10;
}

.brand {
  font-weight: 900;
  letter-spacing: 0.2px;
}

.navLinks {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

.navLinks a {
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--muted);
  font-weight: 800;
  font-size: 13px;
}

.navLinks a.active {
  color: var(--text);
  border-color: rgba(56, 189, 248, 0.45);
  background: rgba(56, 189, 248, 0.14);
}

.navRight {
  display: flex;
  gap: 10px;
  align-items: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.pill.ok {
  border-color: rgba(34, 197, 94, 0.4);
  color: rgba(187, 247, 208, 0.95);
}

.pill.bad {
  border-color: rgba(239, 68, 68, 0.45);
  color: rgba(254, 202, 202, 0.95);
}

h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
}

.sub {
  color: var(--muted);
  margin-top: 6px;
  font-size: 13px;
}

label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 700;
  display: block;
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
input[type="number"],
textarea {
  width: 100%;
  padding: 10px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.55);
  color: var(--text);
  outline: none;
}

textarea {
  min-height: 86px;
  resize: vertical;
}

.inputWrap {
  position: relative;
}

.inputWrap input {
  padding-right: 74px;
}

.togglePw {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 38px;
  height: 34px;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.25);
  color: var(--muted);
  cursor: pointer;
  font-weight: 900;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.pwIcon {
  width: 18px;
  height: 18px;
  display: block;
}

.togglePw:hover {
  color: var(--text);
  border-color: rgba(56, 189, 248, 0.45);
}

.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn {
  border: 1px solid var(--border);
  background: rgba(2, 6, 23, 0.3);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 800;
}

.btn.primary {
  border-color: rgba(56, 189, 248, 0.45);
  background: rgba(56, 189, 248, 0.14);
}

.btn.danger {
  border-color: rgba(239, 68, 68, 0.5);
  background: rgba(239, 68, 68, 0.12);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

.row {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr 0.8fr 0.9fr 1fr;
  gap: 10px;
  padding: 10px;
  border-bottom: 1px solid var(--border);
}

.row.header {
  color: var(--muted);
  font-weight: 800;
  font-size: 12px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.row:last-child { border-bottom: none; }

.exercisesTable .row {
  grid-template-columns: 72px 1fr 140px 140px 120px;
}

.exercisesTable .col-img {
  display: flex;
  align-items: center;
}

.exercisesTable .col-actions {
  display: flex;
  justify-content: flex-end;
}

.spacer { height: 12px; }

.toast {
  position: fixed;
  bottom: 18px;
  right: 18px;
  max-width: 520px;
  padding: 12px 14px;
  background: rgba(17, 26, 46, 0.92);
  border: 1px solid var(--border);
  border-radius: 14px;
  color: var(--text);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  display: none;
  white-space: pre-wrap;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "Courier New", monospace;
  font-size: 12px;
}

.toast.ok { border-color: rgba(34, 197, 94, 0.4); }
.toast.bad { border-color: rgba(239, 68, 68, 0.5); }

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.card {
  padding: 14px;
}

.cardTitle {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 8px;
}

.cardValue {
  font-size: 26px;
  font-weight: 950;
  letter-spacing: 0.2px;
}

.cardHint {
  margin-top: 6px;
  color: var(--muted);
  font-size: 12px;
}

@media (max-width: 920px) {
  .nav {
    flex-direction: column;
    align-items: stretch;
  }

  .navRight {
    justify-content: space-between;
  }

  .navLinks {
    width: 100%;
  }

  .navLinks a {
    flex: 1;
    text-align: center;
  }

  .row {
    grid-template-columns: 1.2fr 1.5fr 0.8fr 0.9fr;
  }
  .row .actions {
    grid-column: 1 / -1;
    justify-content: flex-start;
  }
  .grid2 { grid-template-columns: 1fr; }

  .exercisesTable .row {
    grid-template-columns: 72px 1fr 120px;
  }

  .exercisesTable .col-group,
  .exercisesTable .col-video {
    display: none;
  }

  .exercisesTable .col-actions.actions {
    grid-column: auto;
    justify-content: flex-end;
  }

  .exercisesTable .row.header {
    grid-template-columns: 72px 1fr 120px;
  }

  .cards {
    grid-template-columns: 1fr;
  }
}