:root {
  --green-900: #0f3d2e;
  --green-800: #1b5e4a;
  --green-700: #247a5e;
  --green-100: #e8f5f0;
  --gold: #c9a227;
  --gold-soft: #f3e7b8;
  --ink: #1a2420;
  --muted: #5c6b64;
  --line: #d5e2dc;
  --bg: #f4f7f5;
  --card: #ffffff;
  --danger: #b42318;
  --warning: #b54708;
  --info: #175cd3;
  --success: #067647;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(15, 61, 46, 0.08);
  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(201, 162, 39, 0.12), transparent 28%),
    linear-gradient(180deg, #eef6f2 0%, var(--bg) 40%, #eef2f0 100%);
  min-height: 100vh;
}

a { color: var(--green-800); text-decoration: none; }
a:hover { color: var(--green-700); }

.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: linear-gradient(180deg, var(--green-900), var(--green-800));
  color: #fff;
  padding: 1.5rem 1rem;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.brand {
  padding: 0.5rem 0.75rem 1.25rem;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  margin-bottom: 1rem;
}
.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--gold);
  color: var(--green-900);
  display: grid;
  place-items: center;
  font-weight: 800;
  margin-bottom: 0.75rem;
}
.brand-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  border-radius: 8px;
  background: rgba(255,255,255,0.12);
  padding: 2px;
}
.brand h1 {
  font-size: 1rem;
  margin: 0 0 0.25rem;
  line-height: 1.3;
}
.brand p {
  margin: 0;
  font-size: 0.78rem;
  opacity: 0.8;
}

.nav a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: rgba(255,255,255,0.88);
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  margin-bottom: 0.25rem;
  font-size: 0.92rem;
}
.nav a:hover, .nav a.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
}
.nav .section-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.55;
  padding: 1rem 0.85rem 0.4rem;
}

.main {
  padding: 1.5rem 1.75rem 2.5rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.topbar h2 {
  margin: 0;
  font-size: 1.45rem;
}
.topbar .sub {
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 0.2rem;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.4rem 0.8rem 0.4rem 0.45rem;
  box-shadow: var(--shadow);
}
.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--green-100);
  color: var(--green-800);
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
}
.badge-online { background: #dcfae6; color: var(--success); }
.badge-offline { background: #fef3f2; color: var(--danger); }
.badge-ok { background: #ecfdf3; color: var(--success); }
.badge-warn { background: #fffaeb; color: var(--warning); }
.badge-bad { background: #fef3f2; color: var(--danger); }
.badge-info { background: #eff8ff; color: var(--info); }

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow);
}
.stat-card .label {
  color: var(--muted);
  font-size: 0.82rem;
  margin-bottom: 0.35rem;
}
.stat-card .value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--green-900);
}
.stat-card.accent { border-top: 3px solid var(--gold); }

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.2rem;
  margin-bottom: 1.25rem;
}
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.panel-header h3 {
  margin: 0;
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: 10px;
  padding: 0.55rem 1rem;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary { background: var(--green-800); color: #fff; }
.btn-primary:hover { background: var(--green-700); color: #fff; }
.btn-secondary {
  background: #fff;
  color: var(--green-800);
  border: 1px solid var(--line);
}
.btn-secondary:hover { background: var(--green-100); color: var(--green-800); }
.btn-gold { background: var(--gold); color: var(--green-900); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.btn-group { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.table-wrap { overflow-x: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
th, td {
  padding: 0.75rem 0.65rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
}
tr:hover td { background: #f8fbf9; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}
.form-grid .full { grid-column: 1 / -1; }
label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--muted);
}
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem 0.8rem;
  font: inherit;
  background: #fff;
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid rgba(27, 94, 74, 0.25);
  border-color: var(--green-700);
}
textarea { min-height: 90px; resize: vertical; }

.filters {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.filters input, .filters select { max-width: 220px; }

.import-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  background: linear-gradient(90deg, #f7f1db, #eef6f2);
  border: 1px solid #e4d7a8;
  border-radius: 12px;
  padding: 0.9rem 1rem;
  margin-bottom: 1rem;
}
.import-form {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}
.import-form input[type="file"] {
  max-width: 280px;
  padding: 0.45rem;
  border: 1px dashed #c9a227;
  background: #fff;
}

.flash-wrap { margin-bottom: 1rem; }
.flash {
  padding: 0.8rem 1rem;
  border-radius: 10px;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}
.flash-success { background: #ecfdf3; color: var(--success); border: 1px solid #abefc6; }
.flash-danger { background: #fef3f2; color: var(--danger); border: 1px solid #fecdca; }
.flash-warning { background: #fffaeb; color: var(--warning); border: 1px solid #fedf89; }
.flash-info { background: #eff8ff; color: var(--info); border: 1px solid #b2ddff; }

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background:
    linear-gradient(135deg, rgba(15,61,46,0.92), rgba(27,94,74,0.85)),
    radial-gradient(circle at 80% 20%, rgba(201,162,39,0.35), transparent 40%);
}
.login-card {
  width: min(420px, 100%);
  background: #fff;
  border-radius: 18px;
  padding: 2rem 1.75rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}
.login-card .logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--green-800);
  color: var(--gold);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}
.login-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
  color: var(--green-900);
}
.login-card .tagline {
  color: var(--muted);
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
}
.login-card .btn { width: 100%; margin-top: 0.5rem; }
.hint {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--green-100);
  padding: 0.75rem;
  border-radius: 10px;
}

.split-2 {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 1.25rem;
}
.muted { color: var(--muted); }
.empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
}

.brand-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.brand-top .brand-mark { margin-bottom: 0; }
.menu-toggle, .menu-close {
  display: none;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--green-900);
  border-radius: 10px;
  width: 40px;
  height: 40px;
  font-size: 1.2rem;
  cursor: pointer;
  flex-shrink: 0;
}
.menu-close {
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1);
  color: #fff;
}
.topbar-left {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 30, 22, 0.45);
  z-index: 40;
}

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split-2 { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
  .menu-toggle, .menu-close { display: inline-flex; align-items: center; justify-content: center; }
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: min(280px, 86vw);
    height: 100vh;
    z-index: 50;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop.show { display: block; }
  .main { padding: 1rem; }
  .form-grid { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr; }
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
  .user-chip { align-self: flex-start; }
  .filters input, .filters select { max-width: none; width: 100%; }
  .import-box { align-items: stretch; }
  .import-form { width: 100%; }
  .import-form input[type="file"] { max-width: none; width: 100%; }
  .btn-group { width: 100%; }
  .btn-group .btn, .btn-group form { flex: 1; }
  .btn-group form .btn { width: 100%; }
  table { font-size: 0.82rem; }
  th, td { padding: 0.6rem 0.45rem; }
}