:root {
  --bg: #f6f7fb;
  --panel: #ffffff;
  --ink: #1e293b;
  --muted: #64748b;
  --line: #e7e9f0;
  --line-soft: #eef1f6;
  --accent: #4f46e5;
  --accent-2: #6366f1;
  --accent-ink: #ffffff;
  --accent-soft: #eef2ff;
  --danger: #dc2626;
  --danger-soft: #fef2f2;
  --ok: #16a34a;
  --ok-soft: #ecfdf3;
  --warn: #d97706;
  --warn-soft: #fffaeb;
  --r: 12px;
  --r-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .06);
  --shadow: 0 4px 20px -6px rgba(16, 24, 40, .12), 0 2px 6px -2px rgba(16, 24, 40, .06);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }

h1, h2, h3 { letter-spacing: -.01em; }

/* --- Верхня панель --- */
.topbar {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar .brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
}
.topbar .brand::before {
  content: "";
  width: 22px;
  height: 22px;
  border-radius: 7px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow-sm);
}
.topbar nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.topbar nav a {
  color: var(--muted);
  padding: 7px 11px;
  border-radius: var(--r-sm);
  font-weight: 500;
  transition: background .15s, color .15s;
}
.topbar nav a:hover { color: var(--ink); background: var(--accent-soft); }
.topbar .logout { display: flex; align-items: center; gap: 12px; }
.topbar .who { color: var(--muted); font-size: 13px; }
.topbar .who:hover { color: var(--accent); }

/* --- Кнопки --- */
button, .btn, a.btn {
  font: inherit;
  font-weight: 600;
  padding: 8px 15px;
  border: 1px solid transparent;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: var(--r-sm);
  cursor: pointer;
  display: inline-block;
  transition: transform .06s ease, filter .15s, box-shadow .15s, background .15s;
  box-shadow: var(--shadow-sm);
}
button:hover, .btn:hover, a.btn:hover { filter: brightness(1.06); box-shadow: var(--shadow); }
button:active, .btn:active { transform: translateY(1px); }
a.btn:hover { text-decoration: none; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-soft), 0 0 0 1px var(--accent);
}

.logout button, button.ghost {
  background: var(--panel);
  color: var(--muted);
  border-color: var(--line);
  box-shadow: none;
}
.logout button:hover, button.ghost:hover { color: var(--ink); background: #fafbff; filter: none; border-color: #d7dbe6; }
button.ghost.danger { color: var(--danger); }
button.ghost.danger:hover { background: var(--danger-soft); border-color: #f3c7c7; color: var(--danger); }

/* --- Каркас сторінки --- */
.content { padding: 28px 24px; max-width: 1140px; margin: 0 auto; }

.page-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 20px; }
.page-head h1 { font-size: 24px; margin: 0; font-weight: 700; }
.head-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.center { text-align: center; }
.muted { color: var(--muted); font-size: 13px; }

/* --- Логін --- */
.login-card {
  max-width: 380px;
  margin: 10vh auto;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow);
}
.login-card h1 { font-size: 22px; margin: 0 0 22px; }
.login-card label { display: block; margin-bottom: 15px; font-size: 13px; font-weight: 500; color: var(--muted); }
.login-card button { width: 100%; margin-top: 8px; padding: 10px; }
.error { color: var(--danger); font-size: 14px; margin: 0 0 14px; background: var(--danger-soft); padding: 9px 12px; border-radius: var(--r-sm); }
.ok-msg { color: var(--ok); font-size: 14px; margin: 0 0 14px; background: var(--ok-soft); padding: 9px 12px; border-radius: var(--r-sm); }

/* --- Поля вводу --- */
input[type=text], input[type=email], input[type=password], input[type=number],
input[type=datetime-local], select, textarea {
  font: inherit;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--panel);
  color: var(--ink);
  transition: border-color .15s, box-shadow .15s;
}
input:hover, select:hover, textarea:hover { border-color: #d7dbe6; }
.login-card input { display: block; width: 100%; margin-top: 6px; }

/* --- Вкладки / фільтри (пігулки) --- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; align-items: center; }
.filters select, .filters input { padding: 8px 10px; }
.tab {
  padding: 7px 13px; border: 1px solid var(--line); border-radius: 999px;
  color: var(--muted); background: var(--panel); font-weight: 500; font-size: 14px;
  transition: all .15s;
}
.tab:hover { color: var(--ink); border-color: #d7dbe6; text-decoration: none; }
.tab.active { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }

/* --- Таблиця --- */
.grid {
  width: 100%; border-collapse: separate; border-spacing: 0;
  background: var(--panel); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden; box-shadow: var(--shadow-sm);
}
.grid th, .grid td { text-align: left; padding: 12px 15px; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
.grid th { background: #fafbfd; font-size: 11.5px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; }
.grid tbody tr:hover td, .grid tr:hover td { background: #fbfcfe; }
.grid tr:last-child td { border-bottom: none; }
.grid input[type=text], .grid input[type=email] { width: 100%; }

/* --- Бейджі --- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; line-height: 1.5; }
.st-new { background: var(--accent-soft); color: #4338ca; }
.st-open { background: var(--ok-soft); color: var(--ok); }
.st-pending { background: var(--warn-soft); color: var(--warn); }
.st-solved { background: #eef2f6; color: #475569; }
.st-closed { background: #f1f3f7; color: #94a3b8; }
.kpi-met { background: var(--ok-soft); color: var(--ok); }
.kpi-breached { background: var(--danger-soft); color: var(--danger); }
.kpi-sla { background: var(--warn-soft); color: var(--warn); }

/* --- Дволанкова розкладка --- */
.detail { display: grid; grid-template-columns: 1fr 340px; gap: 22px; }
@media (max-width: 860px) { .detail { grid-template-columns: 1fr; } }
.thread { display: flex; flex-direction: column; gap: 16px; }
.sidebar { display: flex; flex-direction: column; gap: 16px; }

.banner { background: var(--warn-soft); border: 1px solid #fce7ba; padding: 10px 14px; border-radius: var(--r-sm); font-size: 13.5px; color: #92610a; }

/* --- Картки --- */
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; box-shadow: var(--shadow-sm); }
.card h3 { margin: 0 0 12px; font-size: 15px; font-weight: 650; }

/* --- Форми --- */
.stacked label { display: block; margin-bottom: 13px; font-size: 13px; font-weight: 500; color: var(--muted); }
.stacked input, .stacked select, .stacked textarea { width: 100%; margin-top: 5px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.row3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
@media (max-width: 640px) { .row2, .row3 { grid-template-columns: 1fr; } }
.form-actions { display: flex; align-items: center; gap: 14px; margin-top: 12px; }
.inline-form { display: flex; gap: 8px; }
.inline-form select, .inline-form input { flex: 1; }
.row-form { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.cb { display: inline-flex; align-items: center; gap: 7px; color: var(--ink); font-size: 14px; font-weight: 400; }
.cb input { accent-color: var(--accent); width: 16px; height: 16px; }

.meta { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; margin: 12px 0 0; font-size: 14px; }
.meta dt { color: var(--muted); }
.meta dd { margin: 0; font-weight: 500; }

/* --- Дії в рядку --- */
.row-actions { display: flex; gap: 6px; white-space: nowrap; }
.row-actions form { margin: 0; }
.row-actions button, .row-actions .btn { padding: 5px 11px; font-size: 13px; font-weight: 500; }

/* --- Метрики / дашборд --- */
.week-nav { display: flex; align-items: center; gap: 12px; }
.week-label { font-weight: 600; }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 20px; }
.metric { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 18px; box-shadow: var(--shadow-sm); }
.metric .m-val { font-size: 30px; font-weight: 750; letter-spacing: -.02em; }
.metric .m-lbl { font-size: 13px; color: var(--muted); margin-top: 5px; }
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 860px) { .chart-grid { grid-template-columns: 1fr; } }
.chart-grid .card h3 { margin-top: 0; }