/* Panel de administración MGID-PHP */
:root {
    --bg: #0f172a;
    --card: #1e293b;
    --border: #334155;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.sidebar {
    width: 240px;
    background: var(--card);
    border-right: 1px solid var(--border);
    padding: 24px 0;
    flex-shrink: 0;
}
.sidebar .logo {
    padding: 0 20px 24px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #38bdf8;
}
.sidebar nav a {
    display: block;
    padding: 10px 20px;
    color: var(--muted);
    text-decoration: none;
    transition: all 0.15s;
}
.sidebar nav a:hover,
.sidebar nav a.active {
    background: rgba(59,130,246,0.12);
    color: #fff;
}
.main { flex: 1; padding: 32px; overflow-x: auto; }
.page-title { font-size: 1.5rem; margin-bottom: 24px; font-weight: 600; }

/* Cards & Stats */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}
.stat-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
}
.stat-card .label { color: var(--muted); font-size: 0.85rem; margin-bottom: 6px; }
.stat-card .value { font-size: 1.75rem; font-weight: 700; }
.stat-card .value.green { color: var(--success); }
.stat-card .value.blue { color: #38bdf8; }

/* Tables */
.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.card-header h2 { font-size: 1.1rem; font-weight: 600; }
table { width: 100%; border-collapse: collapse; }
th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
th { color: var(--muted); font-weight: 500; background: rgba(0,0,0,0.2); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; color: var(--muted); font-size: 0.9rem; }
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 0.95rem;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 16px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); text-decoration: none; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-active { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-paused { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-completed { background: rgba(148,163,184,0.15); color: var(--muted); }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}
.alert-success { background: rgba(16,185,129,0.15); border: 1px solid var(--success); color: #6ee7b7; }
.alert-error { background: rgba(239,68,68,0.15); border: 1px solid var(--danger); color: #fca5a5; }

/* Login */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}
.login-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
}
.login-card h1 { text-align: center; color: #38bdf8; margin-bottom: 8px; }
.login-card .sub { text-align: center; color: var(--muted); margin-bottom: 28px; font-size: 0.9rem; }

/* Actions */
.actions { display: flex; gap: 8px; }

@media (max-width: 768px) {
    .layout { flex-direction: column; }
    .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); }
    .sidebar nav { display: flex; flex-wrap: wrap; gap: 4px; padding: 0 12px; }
    .sidebar nav a { padding: 8px 12px; border-radius: 6px; }
    .main { padding: 20px; }
    .form-row { grid-template-columns: 1fr; }
}

/* —— Responsive mejorado —— */
.topbar-mobile { display: none; }
@media (max-width: 900px) {
  .layout { flex-direction: column; }
  .sidebar {
    width: 100%; border-right: none; border-bottom: 1px solid var(--border);
    padding: 12px 0; position: sticky; top: 0; z-index: 40;
  }
  .sidebar .logo { padding: 8px 16px; }
  .sidebar nav {
    display: flex; flex-wrap: wrap; gap: 4px; padding: 0 12px 12px;
    max-height: 0; overflow: hidden; transition: max-height .25s;
  }
  .sidebar.nav-open nav { max-height: 480px; }
  .sidebar nav a { padding: 8px 12px; border-radius: 8px; font-size: .85rem; }
  .menu-toggle {
    display: inline-flex; align-items: center; gap: 8px;
    margin: 0 16px 8px; padding: 8px 12px; border-radius: 8px;
    background: rgba(255,255,255,.06); border: 1px solid var(--border);
    color: var(--text); font-size: .85rem; cursor: pointer;
  }
  .main { padding: 16px 14px; }
  .stats { grid-template-columns: 1fr 1fr; }
  table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .form-row { grid-template-columns: 1fr !important; }
  .card { overflow-x: auto; }
}
@media (max-width: 480px) {
  .stats { grid-template-columns: 1fr; }
  .page-title { font-size: 1.2rem; }
  .btn { width: 100%; justify-content: center; }
  .actions { display: flex; flex-direction: column; gap: 6px; }
}
@media (min-width: 901px) {
  .menu-toggle { display: none !important; }
}