:root {
  --bg: #050816;
  --card-bg: #0f172a;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.1);
  --text: #e5e7eb;
  --muted: #9ca3af;
  --danger: #f97373;
  --success: #4ade80;
  --border: #1f2933;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #111827 0, #020617 50%, #000 100%);
  color: var(--text);
  min-height: 100%;
}

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

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.navbar {
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(to right, rgba(15,23,42,0.9), rgba(15,23,42,0.6));
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 14px;
}

.nav-logo span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 0, #a5b4fc, #4f46e5);
  color: #020617;
  font-weight: 800;
  font-size: 15px;
}

.nav-links {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

.nav-links a {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--muted);
}

.nav-links a.active,
.nav-links a:hover {
  border-color: var(--accent-soft);
  background: rgba(15,23,42,0.8);
  color: var(--text);
}

.main {
  flex: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 16px 40px;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 24px;
}

@media (max-width: 860px) {
  .grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.card {
  background: radial-gradient(circle at top left, rgba(79,70,229,0.18), rgba(15,23,42,0.98));
  border-radius: 20px;
  border: 1px solid rgba(148,163,184,0.25);
  padding: 20px 18px 18px;
  box-shadow: 0 18px 35px rgba(15,23,42,0.7);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
}

.card-subtitle {
  font-size: 13px;
  color: var(--muted);
}

.chip {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  border: 1px solid rgba(148,163,184,0.4);
  color: var(--muted);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 14px;
  margin-top: 8px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 12px;
  color: var(--muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  border-radius: 10px;
  border: 1px solid rgba(55,65,81,0.9);
  background: rgba(15,23,42,0.6);
  color: var(--text);
  font-size: 13px;
  padding: 8px 10px;
  outline: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 70px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(79,70,229,0.5);
}

.button-row {
  margin-top: 14px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn {
  border-radius: 999px;
  font-size: 13px;
  padding: 9px 16px;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: linear-gradient(to right, #4f46e5, #6366f1);
  color: white;
}

.btn-outline {
  background: transparent;
  border-color: rgba(148,163,184,0.4);
  color: var(--muted);
}

.btn-danger {
  background: var(--danger);
  color: #111827;
}

.badge {
  font-size: 11px;
  border-radius: 999px;
  padding: 2px 8px;
}

.badge-status {
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.5);
  color: var(--muted);
}

.badge-status.completed {
  border-color: rgba(74,222,128,0.7);
  color: var(--success);
}

.badge-status.pending {
  border-color: rgba(251,191,36,0.7);
  color: #facc15;
}

.badge-status.bidding {
  border-color: rgba(129,140,248,0.7);
  color: #a5b4fc;
}

.list {
  margin-top: 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 420px;
  overflow: auto;
}

.list-item {
  border-radius: 14px;
  border: 1px solid rgba(55,65,81,0.9);
  padding: 10px 11px;
  background: radial-gradient(circle at top, rgba(15,23,42,0.9), rgba(15,23,42,1));
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.list-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.list-item-title {
  font-size: 13px;
  font-weight: 500;
}

.list-item-meta {
  font-size: 11px;
  color: var(--muted);
}

.footer {
  padding: 12px 20px 18px;
  font-size: 11px;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid rgba(15,23,42,0.9);
  background: rgba(15,23,42,0.95);
}

.alert {
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 12px;
  margin-bottom: 10px;
}

.alert-error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.5);
  color: #fecaca;
}

.alert-success {
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.7);
  color: #bbf7d0;
}