@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg-color: #0A0A0A;
  --panel-bg: #111111;
  --border-color: #262626;
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --success: #10B981;
  --danger: #EF4444;
  --text-main: #F9FAFB;
  --text-muted: #9CA3AF;
  --font-main: 'Inter', sans-serif;
  --border-radius: 8px;
  --transition: all 0.2s ease;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
}

.container { max-width: 1400px; margin: 0 auto; padding: 40px 20px; }

.navigation {
  display: flex; gap: 10px; margin-bottom: 30px;
  background: var(--panel-bg); padding: 10px; border-radius: var(--border-radius);
  border: 1px solid var(--border-color); flex-wrap: wrap;
}
.nav-link {
  color: var(--text-muted); text-decoration: none; padding: 8px 16px;
  border-radius: 6px; font-weight: 500; font-size: 14px; transition: var(--transition);
}
.nav-link:hover { color: var(--text-main); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--text-main); background: var(--border-color); }

h1 { font-size: 28px; font-weight: 600; margin-bottom: 4px; letter-spacing: -0.02em; }
.subtitle { color: var(--text-muted); font-size: 14px; }
.header { margin-bottom: 32px; }

.panel {
  background: var(--panel-bg); border: 1px solid var(--border-color);
  border-radius: var(--border-radius); padding: 24px; margin-bottom: 24px;
}
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.stat-card {
  background: var(--panel-bg); border: 1px solid var(--border-color);
  border-radius: var(--border-radius); padding: 20px;
}
.stat-label { color: var(--text-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 8px; }
.stat-val { font-size: 32px; font-weight: 600; letter-spacing: -0.02em; }
.online { color: var(--success); }
.offline { color: var(--danger); }

.btn {
  background: var(--panel-bg); color: var(--text-main); border: 1px solid var(--border-color);
  padding: 8px 16px; border-radius: 6px; font-family: var(--font-main); font-size: 14px;
  font-weight: 500; cursor: pointer; transition: var(--transition); display: inline-flex; align-items: center; justify-content: center;
}
.btn:hover { background: #1A1A1A; border-color: #404040; }
.btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.btn-primary { background: var(--primary); color: white; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.controls { display: flex; gap: 10px; margin-bottom: 24px; flex-wrap: wrap; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; color: var(--text-muted); font-size: 13px; font-weight: 500; }
input[type=number], input[type=text], input[type=password], textarea {
  width: 100%; padding: 12px; background: #000; border: 1px solid var(--border-color);
  border-radius: 6px; color: var(--text-main); font-family: var(--font-main); font-size: 14px; transition: border-color 0.2s;
}
input:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
textarea { resize: vertical; min-height: 100px; }

.table-container { overflow-x: auto; background: var(--panel-bg); border: 1px solid var(--border-color); border-radius: var(--border-radius); }
table { width: 100%; border-collapse: collapse; text-align: left; }
th, td { padding: 14px 16px; border-bottom: 1px solid var(--border-color); font-size: 14px; }
th { color: var(--text-muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; background: rgba(0,0,0,0.2); }
tbody tr:hover { background: rgba(255,255,255,0.02); }
tbody tr:last-child td { border-bottom: none; }
.number { text-align: right; font-variant-numeric: tabular-nums; }
.money { color: var(--success); font-weight: 500; }

.groups { display: grid; grid-template-columns: repeat(auto-fit, minmax(400px, 1fr)); gap: 24px; margin-bottom: 40px; }
.group { background: var(--panel-bg); border: 1px solid var(--border-color); border-radius: var(--border-radius); padding: 20px; }
.group-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--border-color); }
.group-title { font-size: 14px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.badges { display: flex; gap: 8px; }
.badge { padding: 4px 8px; font-size: 11px; font-weight: 600; border-radius: 4px; }
.badge-online { background: rgba(16, 185, 129, 0.1); color: var(--success); }
.badge-offline { background: rgba(239, 68, 68, 0.1); color: var(--danger); }

.devices { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.device {
  min-height: 75px; padding: 4px; display: flex; flex-direction: column; align-items: center; justify-content: center;
  border: 1px solid var(--border-color); border-radius: 8px; cursor: pointer; transition: var(--transition);
  background: #000;
}
.device:hover { transform: translateY(-2px); border-color: #525252; box-shadow: 0 4px 12px rgba(0,0,0,0.5); }
.device.online { border-color: rgba(16, 185, 129, 0.3); background: rgba(16, 185, 129, 0.05); }
.device.online:hover { border-color: var(--success); }
.device.offline { border-color: rgba(239, 68, 68, 0.3); background: rgba(239, 68, 68, 0.05); }
.device.offline:hover { border-color: var(--danger); }
.device.empty { opacity: 0.2; cursor: default; color: #666; border-style: dashed; }
.device.empty:hover { transform: none; border-color: var(--border-color); box-shadow: none; }
.device-pos { font-size: 14px; font-weight: 600; margin-bottom: 2px; }
.device-info { font-size: 9px; color: var(--text-muted); }

.totals { display: flex; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.total-card {
  flex: 1; min-width: 140px; background: var(--panel-bg); border: 1px solid var(--border-color);
  border-radius: var(--border-radius); padding: 16px;
}
.total-card.revenue .total-value { color: var(--success); }
.total-value { font-size: 24px; font-weight: 600; margin-bottom: 4px; font-variant-numeric: tabular-nums; }
.total-label { font-size: 11px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }

.modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.8); backdrop-filter: blur(4px); z-index: 1000; align-items: center; justify-content: center; }
.modal-content { background: var(--panel-bg); border: 1px solid var(--border-color); border-radius: 12px; width: 90%; max-width: 500px; padding: 32px; box-shadow: 0 20px 25px -5px rgba(0,0,0,0.5); }
.modal-header { font-size: 18px; font-weight: 600; margin-bottom: 24px; padding-bottom: 16px; border-bottom: 1px solid var(--border-color); }
.modal-footer { display: flex; justify-content: flex-end; gap: 12px; margin-top: 32px; }

.loader-screen { position: fixed; inset: 0; background: var(--bg-color); display: flex; flex-direction: column; align-items: center; justify-content: center; z-index: 9999; transition: opacity 0.5s; }
.loader-screen.hidden { opacity: 0; pointer-events: none; }
.spinner { width: 32px; height: 32px; border: 3px solid rgba(255,255,255,0.1); border-radius: 50%; border-top-color: var(--primary); animation: spin 1s linear infinite; margin-bottom: 16px; }
@keyframes spin { 100% { transform: rotate(360deg); } }
.loader-text { font-size: 12px; color: var(--text-muted); font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }

.calendar { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; margin-top: 24px; }
.day-card { background: var(--panel-bg); border: 1px solid var(--border-color); border-radius: var(--border-radius); overflow: hidden; }
.day-card.today { border-color: var(--primary); box-shadow: 0 0 0 1px var(--primary); }
.day-header { padding: 12px 16px; background: rgba(0,0,0,0.2); border-bottom: 1px solid var(--border-color); font-weight: 500; font-size: 14px; display: flex; justify-content: space-between; align-items: center; }
.day-content { padding: 16px; }
.chk-row { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 14px; }
.chk-time { color: var(--text-muted); font-variant-numeric: tabular-nums; }
.chk-count { font-weight: 500; }

.radio-group { display: flex; gap: 12px; margin-top: 8px; }
.radio-group label {
  display: flex; align-items: center; gap: 8px; cursor: pointer; padding: 10px 16px;
  background: #000; border: 1px solid var(--border-color); border-radius: 6px;
  transition: var(--transition);
}
.radio-group label:hover { border-color: #525252; }
.radio-group input:checked + span { color: var(--text-main); }

.footer { text-align: center; color: var(--text-muted); font-size: 12px; margin-top: 40px; }

/* Flex global settings */
.global-body { display: flex; gap: 20px; align-items: flex-start; flex-wrap: wrap; }
.setting-group { flex: 1; min-width: 200px; }

@media (max-width: 768px) {
  .devices { grid-template-columns: repeat(4, 1fr); }
  .totals { flex-direction: column; }
}
@media (max-width: 480px) {
  .devices { grid-template-columns: repeat(3, 1fr); }
}