:root {
  --bg: #f4f7fb;
  --bg-soft: #ffffff;
  --bg-strong: #102542;
  --accent: #1f7a8c;
  --text: #102542;
  --muted: #5c6b7a;
  --danger: #c62828;
  --success: #2e7d32;
  --warning: #ef6c00;
  --border: #d9e2ec;
  --shadow: 0 18px 45px rgba(16, 37, 66, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at top right, rgba(31, 122, 140, 0.12), transparent 35%),
    linear-gradient(180deg, #f8fbff 0%, #eef3f8 100%);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; }
button, input, select, textarea { font: inherit; }
.page-shell { width: min(1180px, calc(100% - 24px)); margin: 0 auto; padding: 24px 0 40px; }
.hero-login { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.auth-card, .panel, .modal-card {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(217, 226, 236, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.auth-card { width: min(460px, 100%); padding: 28px; }
.brand { margin-bottom: 24px; }
.brand h1, .panel h1, .panel h2, .panel h3 { margin: 0; }
.brand p, .muted { color: var(--muted); }
.form-grid { display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 0.92rem; font-weight: 600; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}
.field textarea { min-height: 92px; resize: vertical; }
.btn, .btn-secondary, .btn-danger, .tab-button {
  display: inline-flex; align-items: center; justify-content: center;
  border: 0; border-radius: 12px; cursor: pointer; padding: 11px 16px; font-weight: 700;
  transition: transform 0.18s ease, opacity 0.18s ease, background 0.18s ease;
}
.btn:hover, .btn-secondary:hover, .btn-danger:hover, .tab-button:hover { transform: translateY(-1px); }
.btn { background: var(--accent); color: #fff; }
.btn-secondary, .tab-button { background: #e9f3f5; color: var(--text); }
.btn-danger { background: #fdecea; color: var(--danger); }
.btn:disabled, .btn-secondary:disabled, .btn-danger:disabled { opacity: 0.6; cursor: wait; transform: none; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 22px; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.panel { padding: 20px; }
.kpi-grid, .split-grid, .table-toolbar, .stats-inline { display: grid; gap: 14px; }
.kpi-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); margin-bottom: 18px; }
.kpi-card { padding: 18px; border-radius: 18px; background: linear-gradient(180deg, #ffffff 0%, #f5fbfc 100%); border: 1px solid var(--border); }
.kpi-card small { color: var(--muted); font-weight: 700; }
.kpi-card strong { display: block; font-size: 1.5rem; margin-top: 8px; }
.tabs { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 18px; }
.tab-button.active { background: var(--bg-strong); color: #fff; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.split-grid { grid-template-columns: 1.1fr 0.9fr; }
.table-card { border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff; }
.table-toolbar { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); padding: 16px; border-bottom: 1px solid var(--border); background: #f9fbfd; }
.table-wrap { overflow: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 14px; border-bottom: 1px solid #eef2f6; text-align: left; vertical-align: top; font-size: 0.94rem; }
th { font-size: 0.84rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); background: #f9fbfd; }
.pill { display: inline-flex; align-items: center; border-radius: 999px; padding: 4px 10px; font-size: 0.82rem; font-weight: 700; }
.pill.success { background: #e8f5e9; color: var(--success); }
.pill.warning { background: #fff4e5; color: var(--warning); }
.pill.danger { background: #fdecea; color: var(--danger); }
.pill.info { background: #e8f1fe; color: #1565c0; }
.pill-button {
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.pill-button:hover .pill,
.pill-button:focus-visible .pill {
  filter: brightness(0.97);
  transform: translateY(-1px);
}
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.stats-list { display: grid; gap: 12px; padding: 16px; }
.stats-item {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
}
.stats-item strong { font-size: 0.98rem; }
.stats-item small { color: var(--muted); }
.empty-state { padding: 22px; text-align: center; color: var(--muted); }
.modal { position: fixed; inset: 0; display: none; align-items: center; justify-content: center; padding: 20px; background: rgba(16, 37, 66, 0.45); z-index: 40; }
.modal.open { display: flex; }
.modal-card { width: min(720px, 100%); max-height: calc(100vh - 40px); overflow: auto; padding: 22px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; }
.modal-close { background: transparent; color: var(--muted); border: 0; font-size: 1.2rem; cursor: pointer; }
.toast-stack { position: fixed; top: 18px; right: 18px; display: grid; gap: 10px; z-index: 60; }
.toast { min-width: 240px; max-width: 360px; background: #fff; border-left: 5px solid var(--accent); border-radius: 14px; box-shadow: var(--shadow); padding: 14px 16px; }
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
.stats-inline { grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); }
.loading { opacity: 0.65; pointer-events: none; }
.hidden { display: none !important; }
@media (max-width: 900px) {
  .split-grid { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 640px) {
  .page-shell { width: min(100%, calc(100% - 16px)); padding-top: 16px; }
  .auth-card, .panel, .modal-card { padding: 16px; border-radius: 16px; }
  th, td { padding: 10px; }
}