:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-dark: #1d4ed8;
  --success: #16a34a;
  --warning: #d97706;
  --danger: #dc2626;
  --shadow: 0 14px 35px rgba(15, 23, 42, 0.08);
  --radius: 22px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.hero {
  padding: 28px 36px 18px;
  background: linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.hero.compact { padding-top: 22px; }

h1 {
  margin: 0;
  font-size: 32px;
  letter-spacing: -0.04em;
}

h2 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.dashboard-main {
  padding: 26px 36px 36px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 22px;
}

.admin-main {
  padding: 24px 32px 34px;
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 22px;
}

.admin-sidebar,
.admin-content,
.stack {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.grid-full { grid-column: 1 / -1; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 18px 22px 12px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.card-body { padding: 20px 22px 24px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
  font-size: 14px;
  font-weight: 800;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
}

.dot.running {
  background: var(--success);
  box-shadow: 0 0 0 6px rgba(22, 163, 74, 0.12);
}

.dot.danger {
  background: var(--danger);
  box-shadow: 0 0 0 6px rgba(220, 38, 38, 0.12);
}

.chip-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.chip {
  display: inline-block;
  padding: 8px 11px;
  border-radius: 999px;
  background: #f3f4f6;
  color: #374151;
  font-weight: 800;
  font-size: 13px;
  text-decoration: none;
}

.link-chip:hover {
  background: #e0e7ff;
  color: #1e3a8a;
}

.success-chip { background: #dcfce7; color: #166534; }
.warning-chip { background: #fef3c7; color: #92400e; }
.danger-chip { background: #fee2e2; color: #991b1b; }

.live-layout {
  display: grid;
  grid-template-columns: 1fr 240px;
  gap: 20px;
  align-items: center;
}

.current-team {
  font-size: 34px;
  font-weight: 850;
  letter-spacing: -0.04em;
  margin: 0 0 10px;
}

.robot-name {
  color: var(--muted);
  font-size: 15px;
  margin: 0 0 16px;
}

.timer-card {
  text-align: center;
  padding: 18px;
  border-radius: 20px;
  background: #111827;
  color: #ffffff;
}

.timer-label {
  font-size: 12px;
  text-transform: uppercase;
  color: #cbd5e1;
  letter-spacing: 0.12em;
}

.timer-value {
  margin-top: 8px;
  font-size: 44px;
  font-weight: 900;
  letter-spacing: -0.06em;
}

.timer-card.warning .timer-value { color: #fbbf24; }
.timer-card.danger .timer-value { color: #f87171; }

.stats-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 14px;
}

.stat-box {
  background: #f9fafb;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 16px;
}

.stat-box span,
.total-box span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.stat-box strong {
  font-size: 26px;
  font-weight: 900;
  letter-spacing: -0.04em;
}

.total-box {
  padding: 18px;
  border-radius: 18px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
}

.total-box strong {
  display: block;
  font-size: 36px;
  font-weight: 950;
  letter-spacing: -0.06em;
  color: var(--accent);
}

.total-box small { color: var(--muted); }

table {
  width: 100%;
  border-collapse: collapse;
}

th {
  text-align: left;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
}

td {
  padding: 14px 10px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
  font-size: 14px;
}

.leaderboard-table tbody tr:first-child td { background: #fffbeb; }

.rank {
  font-size: 22px;
  font-weight: 900;
  width: 60px;
}

.team-name {
  font-weight: 850;
  font-size: 15px;
}

.small,
.note,
.muted { color: var(--muted); }

.small {
  font-size: 12px;
  margin-top: 4px;
}

.note {
  margin: 16px 0 0;
  font-size: 12px;
}

.score {
  font-weight: 900;
  font-size: 20px;
  color: var(--accent);
}

.valid { color: var(--success); font-weight: 800; }
.not-ranked { color: var(--danger); font-weight: 800; }

.bar-list {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.bar-row {
  display: grid;
  grid-template-columns: 120px 1fr 48px;
  gap: 10px;
  align-items: center;
  font-size: 13px;
}

.bar-track {
  height: 12px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
  width: 0%;
  transition: width 0.25s ease;
}

label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 800;
  margin-bottom: 6px;
}

input,
select,
textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 14px;
  background: #ffffff;
  color: var(--ink);
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

textarea {
  min-height: 76px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-row.three { grid-template-columns: repeat(3, 1fr); }

.check-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #f9fafb;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--line);
  margin-bottom: 0;
  color: var(--ink);
  letter-spacing: 0;
  text-transform: none;
  font-size: 14px;
}

.check-row input { width: auto; }

button {
  border: 0;
  border-radius: 13px;
  padding: 11px 14px;
  cursor: pointer;
  font-weight: 850;
  color: #ffffff;
  background: var(--accent);
  transition: transform 0.08s ease, background 0.15s ease;
}

button:hover { background: var(--accent-dark); }
button:active { transform: translateY(1px); }

button.secondary { background: #374151; }
button.success { background: var(--success); }
button.warning { background: var(--warning); }
button.danger { background: var(--danger); }

button.light {
  background: #eef2ff;
  color: #1e3a8a;
  border: 1px solid #c7d2fe;
}

.button-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.button-grid.four { grid-template-columns: repeat(4, 1fr); }

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: 460px;
  padding: 14px 16px;
  border-radius: 14px;
  color: #fff;
  background: #111827;
  box-shadow: var(--shadow);
  display: none;
  z-index: 20;
  font-size: 14px;
}

.toast.error { background: var(--danger); }

@media (max-width: 1050px) {
  .dashboard-main,
  .admin-main { grid-template-columns: 1fr; }

  .stats-grid { grid-template-columns: repeat(2, minmax(150px, 1fr)); }
  .live-layout { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .hero,
  .dashboard-main,
  .admin-main {
    padding-left: 18px;
    padding-right: 18px;
  }

  h1 { font-size: 25px; }

  .stats-grid,
  .form-row,
  .form-row.three,
  .button-grid,
  .button-grid.four {
    grid-template-columns: 1fr;
  }

  .timer-value { font-size: 36px; }

  .leaderboard-table th:nth-child(4),
  .leaderboard-table td:nth-child(4),
  .leaderboard-table th:nth-child(5),
  .leaderboard-table td:nth-child(5) {
    display: none;
  }
}