* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #1c1c1e;
  --bg2: #2c2c2e;
  --bg3: #3a3a3c;
  --border: rgba(255,255,255,0.08);
  --divider: rgba(255,255,255,0.06);
  --text: #f5f5f7;
  --text2: rgba(255,255,255,0.55);
  --text3: rgba(255,255,255,0.35);
  --green: #30d158;
  --red: #ff453a;
  --yellow: #ffd60a;
  --orange: #ff9f0a;
  --blue: #0a84ff;
  --nav-w: 220px;
  --radius: 10px;
  --shadow: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-hover: 0 4px 16px rgba(0,0,0,0.4);
  --transition: 200ms ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* === LOGIN === */
.login-page {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1c1c1e 0%, #2c2c2e 100%);
}

.login-card {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  width: 360px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.login-logo {
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

/* === LAYOUT === */
.app { display: flex; height: 100vh; }

/* === NAV SIDEBAR === */
.nav-sidebar {
  width: var(--nav-w);
  background: rgba(44,44,46,0.9);
  backdrop-filter: blur(20px);
  border-right: 0.5px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.nav-logo {
  padding: 20px;
  font-size: 15px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 0.5px solid var(--divider);
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px rgba(48,209,88,0.4);
  display: inline-block;
  flex-shrink: 0;
}

.nav-menu {
  flex: 1;
  padding: 12px 10px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: 8px;
  color: var(--text2);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  margin-bottom: 2px;
  position: relative;
}
.nav-item:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.nav-item.active { background: rgba(10,132,255,0.15); color: var(--blue); }
.nav-item svg { flex-shrink: 0; }

.nav-badge {
  position: absolute;
  right: 10px;
  background: var(--red);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 10px;
  display: none;
}

.nav-divider {
  height: 0.5px;
  background: var(--divider);
  margin: 8px 14px;
}

.nav-footer {
  padding: 12px 14px;
  border-top: 0.5px solid var(--divider);
}

.nav-user {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text2);
}

/* === MAIN === */
.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  padding: 14px 28px;
  border-bottom: 0.5px solid var(--divider);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(44,44,46,0.5);
  backdrop-filter: blur(10px);
}
.topbar-title { font-size: 17px; font-weight: 600; letter-spacing: -0.2px; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.topbar-actions .last-poll { font-size: 11px; color: var(--text3); }

.content {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

/* === BUTTONS === */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
}
.btn:hover { filter: brightness(1.1); }
.btn:active { filter: brightness(0.95); }
.btn-primary { background: var(--blue); color: #fff; width: 100%; }
.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-danger { background: var(--red); color: #fff; }
.btn-ghost { background: rgba(255,255,255,0.06); color: var(--text2); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); color: var(--text); }

/* === DASHBOARD CARDS === */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.dash-card {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  transition: all var(--transition);
}
.dash-card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.dash-card .label { font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.8px; font-weight: 600; }
.dash-card .value { font-size: 36px; font-weight: 700; margin-top: 6px; letter-spacing: -1px; }
.dash-card .value.green { color: var(--green); }
.dash-card .value.red { color: var(--red); }
.dash-card .value.yellow { color: var(--yellow); }

/* === HOST TABLE === */
.host-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.host-table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
  border-bottom: 0.5px solid var(--divider);
}
.host-table td {
  padding: 12px 14px;
  border-bottom: 0.5px solid var(--divider);
  vertical-align: middle;
}
.host-table tr { transition: background var(--transition); cursor: pointer; }
.host-table tbody tr:hover { background: rgba(255,255,255,0.04); }

/* Status indicators */
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 12px;
}
.status-dot::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.online::before { background: var(--green); box-shadow: 0 0 6px rgba(48,209,88,0.4); }
.status-dot.online { color: var(--green); }
.status-dot.snmp-only::before { background: var(--blue); box-shadow: 0 0 6px rgba(10,132,255,0.4); }
.status-dot.snmp-only { color: var(--blue); }
.status-dot.offline::before { background: var(--red); box-shadow: 0 0 6px rgba(255,69,58,0.4); animation: pulse 2s ease-in-out infinite; }
.status-dot.offline { color: var(--red); }
.status-dot.unknown::before { background: var(--text3); }
.status-dot.unknown { color: var(--text3); }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* === HOST DETAIL === */
.host-detail { max-width: 900px; }
.detail-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 28px; }
.detail-title { font-size: 24px; font-weight: 700; letter-spacing: -0.5px; }

.info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}
.info-item {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: var(--shadow);
}
.info-item .label { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.6px; font-weight: 600; }
.info-item .val { font-size: 14px; margin-top: 6px; font-weight: 500; }

.section-card {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.section-card h3 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* === ALERTS === */
.alert-item {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: var(--shadow);
}
.alert-item.open { border-left: 3px solid var(--red); }
.alert-item.resolved { border-left: 3px solid var(--green); opacity: 0.5; }
.alert-host { font-weight: 600; font-size: 14px; }
.alert-msg { font-size: 12px; color: var(--text2); margin-top: 3px; }
.alert-jira { font-size: 12px; color: var(--blue); margin-top: 2px; }
.alert-time { font-size: 11px; color: var(--text3); text-align: right; }

/* === MODAL === */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
}
.modal {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}
.modal h2 { font-size: 18px; font-weight: 600; margin-bottom: 20px; }
.modal-close {
  float: right; background: rgba(255,255,255,0.06); border: none;
  color: var(--text2); font-size: 16px; cursor: pointer;
  width: 28px; height: 28px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}
.modal-close:hover { background: rgba(255,255,255,0.12); }

/* === FORMS === */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 11px; color: var(--text3); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.6px; font-weight: 600; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 14px;
  background: rgba(255,255,255,0.06);
  border: 0.5px solid var(--border);
  border-radius: 8px; color: var(--text);
  font-size: 13px; outline: none;
  font-family: inherit;
  transition: all var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--blue); background: rgba(10,132,255,0.06); }
.form-group select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 32px; cursor: pointer; }
.form-group select option { background: var(--bg2); color: var(--text); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text3); }
.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.form-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }

/* === SETTINGS === */
.settings-section {
  background: var(--bg2);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
  max-width: 600px;
  box-shadow: var(--shadow);
}
.settings-section h3 { font-size: 15px; font-weight: 600; margin-bottom: 20px; }

/* === NOTIFICATION TOAST === */
.notification {
  position: fixed; top: 20px; right: 20px;
  padding: 12px 20px; border-radius: 10px;
  background: var(--bg2); border: 0.5px solid var(--border);
  font-size: 13px; font-weight: 500; z-index: 200;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  animation: slideIn 0.3s ease;
}
@keyframes slideIn {
  from { transform: translateX(100px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* === OPERATORS TABLE === */
.op-table { width: 100%; max-width: 700px; border-collapse: collapse; }
.op-table th { text-align: left; padding: 8px 14px; font-size: 11px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 0.5px solid var(--divider); }
.op-table td { padding: 10px 14px; border-bottom: 0.5px solid var(--divider); font-size: 13px; }

/* === SEARCH BAR === */
.search-bar {
  display: flex; gap: 8px; margin-bottom: 20px; align-items: center;
}
.search-bar input {
  flex: 1; padding: 10px 16px;
  background: rgba(255,255,255,0.06);
  border: none; border-radius: 8px;
  color: var(--text); font-size: 13px; outline: none;
}
.search-bar input:focus { background: rgba(255,255,255,0.1); }
.search-bar input::placeholder { color: var(--text3); }

.filter-btn {
  padding: 6px 12px; font-size: 11px; font-weight: 500;
  border: none; background: rgba(255,255,255,0.06);
  color: var(--text2); border-radius: 20px; cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover { background: rgba(255,255,255,0.1); color: var(--text); }
.filter-btn.active { background: var(--blue); color: #fff; }

/* === SCROLLBAR === */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

@media (max-width: 768px) {
  .nav-sidebar { width: 60px; }
  .nav-item span, .nav-logo span { display: none; }
  .info-grid { grid-template-columns: 1fr; }
}