:root {
  --bg: #0a0e1a;
  --card: #111827;
  --card2: #1f2937;
  --accent: #f59e0b;
  --accent2: #10b981;
  --text: #f3f4f6;
  --muted: #9ca3af;
  --danger: #ef4444;
  --border: #374151;
  --radius: 10px;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: 'Inter', system-ui, sans-serif; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }

/* Utils */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: 1rem; }
.gap-2 { gap: .5rem; }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-sm { font-size: .875rem; }
.text-xs { font-size: .75rem; }
.font-bold { font-weight: 700; }
.mt-4 { margin-top: 1rem; }
.mt-2 { margin-top: .5rem; }
.mb-4 { margin-bottom: 1rem; }
.p-4 { padding: 1rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-2 { padding-top: .5rem; padding-bottom: .5rem; }
.rounded { border-radius: var(--radius); }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; }
.card2 { background: var(--card2); border-radius: var(--radius); padding: 1rem; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .6rem 1.2rem; border-radius: 8px; border: none; cursor: pointer;
  font-size: .9rem; font-weight: 600; transition: opacity .2s; }
.btn:hover { opacity: .85; }
.btn-primary { background: var(--accent); color: #000; }
.btn-success { background: var(--accent2); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-sm { padding: .35rem .8rem; font-size: .8rem; }

/* Inputs */
input, select, textarea {
  width: 100%; background: var(--card2); border: 1px solid var(--border);
  color: var(--text); border-radius: 8px; padding: .6rem .9rem; font-size: .9rem;
  outline: none; transition: border-color .2s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
label { font-size: .8rem; color: var(--muted); margin-bottom: .25rem; display: block; }
.form-group { margin-bottom: 1rem; }

/* Badge */
.badge { display: inline-block; padding: .2rem .6rem; border-radius: 20px; font-size: .72rem; font-weight: 600; }
.badge-green { background: #065f4630; color: #10b981; border: 1px solid #065f46; }
.badge-yellow { background: #78350f30; color: #f59e0b; border: 1px solid #78350f; }
.badge-red { background: #7f1d1d30; color: #ef4444; border: 1px solid #7f1d1d; }
.badge-blue { background: #1e3a5f30; color: #60a5fa; border: 1px solid #1e3a5f; }

/* Stat cards */
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.2rem; display: flex; flex-direction: column; gap: .4rem; }
.stat-value { font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat-label { font-size: .8rem; color: var(--muted); }

/* Table */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; }
th { background: var(--card2); color: var(--muted); font-size: .78rem; text-transform: uppercase;
  letter-spacing: .05em; padding: .75rem 1rem; text-align: left; border-bottom: 1px solid var(--border); }
td { padding: .7rem 1rem; border-bottom: 1px solid var(--border); font-size: .875rem; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #ffffff08; }

/* Sidebar layout */
.layout { display: grid; grid-template-columns: 220px 1fr; min-height: 100vh; }
.sidebar { background: var(--card); border-right: 1px solid var(--border); padding: 1.5rem 1rem;
  display: flex; flex-direction: column; gap: .25rem; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar-logo { font-size: 1.1rem; font-weight: 700; color: var(--accent); padding: .5rem .75rem; margin-bottom: .75rem; }
.nav-item { display: flex; align-items: center; gap: .6rem; padding: .6rem .75rem; border-radius: 8px;
  font-size: .875rem; color: var(--muted); cursor: pointer; transition: all .2s; }
.nav-item:hover, .nav-item.active { background: var(--card2); color: var(--text); }
.nav-item.active { color: var(--accent); }
.main-content { padding: 1.5rem 2rem; overflow-y: auto; }
.page { display: none; }
.page.active { display: block; }

/* Header */
.topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.topbar h1 { font-size: 1.3rem; font-weight: 700; }

/* Grid */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
@media(max-width:900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { height: auto; position: relative; flex-direction: row; flex-wrap: wrap; padding: .75rem; }
  .main-content { padding: 1rem; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media(max-width:600px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Toast */
#toast { position: fixed; bottom: 1.5rem; right: 1.5rem; background: var(--accent2);
  color: #fff; padding: .75rem 1.25rem; border-radius: 10px; font-size: .875rem;
  font-weight: 600; display: none; z-index: 9999; box-shadow: 0 4px 20px #0006; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: #000a; display: flex;
  align-items: center; justify-content: center; z-index: 1000; display: none; }
.modal-overlay.open { display: flex; }
.modal { background: var(--card); border: 1px solid var(--border); border-radius: 14px;
  padding: 1.5rem; width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto; }
.modal h2 { font-size: 1.1rem; font-weight: 700; margin-bottom: 1rem; }

/* QR display */
.qr-box { background: #fff; padding: 1rem; border-radius: 12px; display: inline-block; }
.qr-box img { display: block; width: 180px; height: 180px; }

/* Service cards grid */
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px,1fr)); gap: .75rem; margin-top: 1rem; }
.svc-card { background: var(--card2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1rem; cursor: pointer; transition: border-color .2s; position: relative; }
.svc-card:hover { border-color: var(--accent); }
.svc-card.selected { border-color: var(--accent2); background: #065f4615; }
.svc-price { font-size: 1.1rem; font-weight: 700; color: var(--accent); }
.svc-name { font-size: .85rem; font-weight: 600; margin: .3rem 0; }
.svc-desc { font-size: .75rem; color: var(--muted); }
.svc-check { position: absolute; top: .5rem; right: .5rem; color: var(--accent2); display: none; }
.svc-card.selected .svc-check { display: block; }

/* Login page */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1rem; }
.login-card { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem; }
.login-logo { font-size: 1.4rem; font-weight: 800; color: var(--accent); margin-bottom: .25rem; }

/* Progreso semanal */
.progress-bar { background: var(--card2); border-radius: 99px; height: 8px; overflow: hidden; margin-top: .5rem; }
.progress-fill { background: var(--accent); height: 100%; border-radius: 99px; transition: width .4s; }