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

:root {
  --sidebar-bg: #0f172a;
  --sidebar-w: 240px;
  --primary: #3b82f6;
  --primary-dark: #2563eb;
  --bg: #f1f5f9;
  --card: #ffffff;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
}

body { font-family: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
       background: var(--bg); color: var(--text); font-size: 14px; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); background: var(--sidebar-bg);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh; z-index: 100;
  overflow-y: auto;
}
.main { margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column; min-height: 100vh; }

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar-logo {
  padding: 20px 16px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar-logo .logo-main {
  font-size: 16px; font-weight: 700; color: #fff; letter-spacing: .3px;
}
.sidebar-logo .logo-sub {
  font-size: 10px; color: #64748b; text-transform: uppercase; letter-spacing: 1px; margin-top: 2px;
}
.nav-section { padding: 12px 0 4px; }
.nav-section-label {
  padding: 0 16px 6px;
  font-size: 10px; font-weight: 600; color: #475569;
  text-transform: uppercase; letter-spacing: 1px;
}
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 16px; color: #94a3b8;
  text-decoration: none; font-size: 13.5px; font-weight: 500;
  border-radius: 0; transition: all .15s; cursor: pointer;
  border-left: 3px solid transparent;
}
.nav-item:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }
.nav-item.active { background: rgba(59,130,246,.15); color: #60a5fa;
                   border-left-color: #3b82f6; }
.nav-icon { font-size: 16px; width: 20px; text-align: center; flex-shrink: 0; }
.sidebar-footer {
  margin-top: auto; padding: 12px 16px;
  border-top: 1px solid rgba(255,255,255,.08);
}
.user-info { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.user-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: #3b82f6; color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 600; flex-shrink: 0;
}
.user-name { font-size: 12px; font-weight: 600; color: #e2e8f0; }
.user-email { font-size: 11px; color: #64748b; }
.btn-logout {
  width: 100%; padding: 6px; background: rgba(239,68,68,.15);
  color: #f87171; border: none; border-radius: var(--radius);
  cursor: pointer; font-size: 12px; font-weight: 500; transition: all .15s;
}
.btn-logout:hover { background: rgba(239,68,68,.25); }

/* ── Topbar ──────────────────────────────────────────────────────────────── */
.topbar {
  background: var(--card); border-bottom: 1px solid var(--border);
  padding: 0 24px; height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
}
.topbar-title { font-size: 17px; font-weight: 700; color: var(--text); }
.topbar-actions { display: flex; gap: 8px; align-items: center; }

/* ── Content ─────────────────────────────────────────────────────────────── */
.content { padding: 24px; flex: 1; }

/* ── Cards ───────────────────────────────────────────────────────────────── */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.card-header {
  padding: 16px 20px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-title { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* ── Stats Grid ──────────────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 18px 20px;
}
.stat-label { font-size: 12px; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.stat-value { font-size: 28px; font-weight: 700; margin: 4px 0; }
.stat-sub   { font-size: 12px; color: var(--text-muted); }
.stat-icon  { font-size: 24px; float: right; margin-top: -4px; }

/* ── Tables ──────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left; padding: 10px 14px;
  font-size: 11px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: .5px;
  background: #f8fafc; border-bottom: 1px solid var(--border);
}
td { padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: #f8fafc; }
.table-link { color: var(--primary); text-decoration: none; font-weight: 500; }
.table-link:hover { text-decoration: underline; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500; cursor: pointer;
  border: 1px solid transparent; transition: all .15s; text-decoration: none;
  white-space: nowrap;
}
.btn-primary   { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
.btn-secondary { background: #fff; color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: #f8fafc; }
.btn-danger    { background: #fff; color: var(--danger); border-color: var(--danger); }
.btn-danger:hover { background: #fef2f2; }
.btn-success   { background: var(--success); color: #fff; }
.btn-sm  { padding: 4px 10px; font-size: 12px; }
.btn-icon { padding: 6px 8px; }

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; padding: 2px 8px;
  border-radius: 999px; font-size: 11px; font-weight: 600;
}
.badge-success  { background: #dcfce7; color: #166534; }
.badge-warning  { background: #fef9c3; color: #854d0e; }
.badge-danger   { background: #fee2e2; color: #991b1b; }
.badge-info     { background: #dbeafe; color: #1e40af; }
.badge-muted    { background: #f1f5f9; color: #475569; }
.badge-draft    { background: #f1f5f9; color: #64748b; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 12px; font-weight: 600; color: var(--text-muted);
              text-transform: uppercase; letter-spacing: .4px; margin-bottom: 5px; }
.form-control {
  width: 100%; padding: 8px 12px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 13px; color: var(--text);
  background: #fff; transition: border-color .15s;
  font-family: inherit;
}
.form-control:focus { outline: none; border-color: var(--primary);
                      box-shadow: 0 0 0 3px rgba(59,130,246,.1); }
.form-control[readonly] { background: #f8fafc; }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-row { display: grid; gap: 12px; }
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-hint { font-size: 11px; color: var(--text-muted); margin-top: 4px; }

/* ── Search / Filters ────────────────────────────────────────────────────── */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.search-box {
  display: flex; align-items: center; gap: 8px;
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 0 12px;
  flex: 1; min-width: 200px; max-width: 360px;
}
.search-box input {
  border: none; outline: none; font-size: 13px; padding: 7px 0;
  flex: 1; background: transparent; color: var(--text);
}
.search-icon { color: var(--text-muted); font-size: 14px; }
.filter-select {
  padding: 7px 10px; border: 1px solid var(--border);
  border-radius: var(--radius); font-size: 13px; background: #fff;
  color: var(--text); cursor: pointer;
}

/* ── Modals ──────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000; padding: 16px;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: #fff; border-radius: 12px; width: 100%;
  max-height: 90vh; display: flex; flex-direction: column;
  box-shadow: 0 20px 40px rgba(0,0,0,.15);
}
.modal-sm  { max-width: 420px; }
.modal-md  { max-width: 600px; }
.modal-lg  { max-width: 780px; }
.modal-header {
  padding: 18px 20px 14px; border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close {
  background: none; border: none; cursor: pointer; font-size: 20px;
  color: var(--text-muted); line-height: 1; padding: 2px 6px;
  border-radius: var(--radius);
}
.modal-close:hover { background: var(--bg); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer {
  padding: 14px 20px; border-top: 1px solid var(--border);
  display: flex; gap: 8px; justify-content: flex-end;
}

/* ── Tabs ────────────────────────────────────────────────────────────────── */
.tabs { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tab-btn {
  padding: 10px 18px; font-size: 13px; font-weight: 500;
  color: var(--text-muted); cursor: pointer;
  background: none; border: none; border-bottom: 2px solid transparent;
  margin-bottom: -2px; transition: all .15s;
}
.tab-btn:hover  { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane.hidden { display: none; }

/* ── Detail Header ───────────────────────────────────────────────────────── */
.detail-header {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px 24px; margin-bottom: 20px;
  display: flex; align-items: flex-start; justify-content: space-between; gap: 16px;
}
.detail-title { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.detail-sub   { font-size: 13px; color: var(--text-muted); }
.detail-meta  { display: flex; gap: 20px; margin-top: 12px; flex-wrap: wrap; }
.detail-meta-item { font-size: 12px; }
.detail-meta-label { color: var(--text-muted); display: block; }
.detail-meta-value { font-weight: 600; margin-top: 1px; }

/* ── Info Grid ───────────────────────────────────────────────────────────── */
.info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.info-item { }
.info-label { font-size: 11px; font-weight: 600; color: var(--text-muted);
              text-transform: uppercase; letter-spacing: .4px; margin-bottom: 3px; }
.info-value { font-size: 14px; color: var(--text); }

/* ── Login ───────────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh; background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 100%);
  display: flex; align-items: center; justify-content: center;
}
.login-box {
  background: #fff; border-radius: 16px; padding: 40px;
  width: 100%; max-width: 380px; box-shadow: 0 20px 40px rgba(0,0,0,.25);
}
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo-text { font-size: 22px; font-weight: 800; color: #0f172a; }
.login-logo-sub  { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.login-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; }
.login-sub   { font-size: 13px; color: var(--text-muted); margin-bottom: 24px; }

/* ── Toasts ──────────────────────────────────────────────────────────────── */
#toast-container { position: fixed; bottom: 20px; right: 20px; z-index: 9999;
                   display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 12px 16px; border-radius: var(--radius); font-size: 13px; font-weight: 500;
  box-shadow: var(--shadow-md); max-width: 320px; display: flex; align-items: center; gap: 10px;
  animation: slideIn .2s ease;
}
.toast-success { background: #166534; color: #fff; }
.toast-error   { background: #991b1b; color: #fff; }
.toast-info    { background: #1e40af; color: #fff; }
@keyframes slideIn { from { transform: translateX(100%); opacity:0; } to { transform: translateX(0); opacity:1; } }

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty-state { text-align: center; padding: 48px 20px; }
.empty-icon  { font-size: 40px; margin-bottom: 12px; }
.empty-text  { font-size: 15px; font-weight: 600; color: var(--text); }
.empty-sub   { font-size: 13px; color: var(--text-muted); margin-top: 4px; }

/* ── Misc ────────────────────────────────────────────────────────────────── */
.text-muted { color: var(--text-muted); }
.text-right { text-align: right; }
.flex       { display: flex; }
.gap-8      { gap: 8px; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.mt-4  { margin-top: 4px; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── File upload ─────────────────────────────────────────────────────────── */
.file-drop {
  border: 2px dashed var(--border); border-radius: var(--radius);
  padding: 24px; text-align: center; cursor: pointer;
  transition: all .15s; background: #f8fafc;
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--primary); background: #eff6ff;
}
.file-drop-icon  { font-size: 28px; margin-bottom: 8px; }
.file-drop-text  { font-size: 13px; color: var(--text-muted); }
.file-drop-text strong { color: var(--primary); }

/* ── Service Level Badges ────────────────────────────────────────────────── */
.sl-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 700; letter-spacing: .2px;
  white-space: nowrap;
}
.sl-none    { background: #f1f5f9; color: #64748b; }
.sl-brise   { background: #dbeafe; color: #1d4ed8; }
.sl-watt    { background: #d1fae5; color: #065f46; }
.sl-sturmflut { background: #fce7f3; color: #9d174d; }
.sl-ae      { background: #fef3c7; color: #92400e; }

.sl-quick {
  position: relative; display: inline-block;
}
.sl-quick select {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; cursor: pointer; font-size: 13px;
}
.sl-quick:hover .sl-badge { box-shadow: 0 0 0 2px rgba(0,0,0,.15); }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { width: 200px; }
  .main    { margin-left: 200px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-row.cols-3 { grid-template-columns: 1fr 1fr; }
  .form-row.cols-2 { grid-template-columns: 1fr; }
}