/* ISP Support Desk — theme (telecom palette, see docs/DESIGN.md §9) */
:root {
  --blue:   #1e3a8a;
  --blue-2: #1b3478;
  --cyan:   #06b6d4;
  --success:#16a34a;
  --warning:#f59e0b;
  --danger: #dc2626;
  --indigo: #4f46e5;
  --slate:  #64748b;
  --bg:     #f1f5f9;
  --surface:#ffffff;
  --ink:    #0f172a;
  --muted:  #64748b;
  --line:   #e2e8f0;
  --sidebar-w: 248px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Inter', -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
}

/* ---------------- Auth screen ---------------- */
.auth-wrap {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-hero {
  background: linear-gradient(135deg, var(--blue) 0%, #0c2461 60%, var(--cyan) 160%);
  color: #fff;
  padding: 56px 52px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.auth-hero .brand { display: flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 700; }
.auth-hero .brand .logo {
  width: 42px; height: 42px; border-radius: 11px;
  background: rgba(255,255,255,.15); display: grid; place-items: center; font-size: 22px;
}
.auth-hero h1 { font-size: 34px; line-height: 1.2; margin: 0 0 14px; font-weight: 700; }
.auth-hero p { opacity: .85; max-width: 420px; line-height: 1.6; }
.auth-hero .feature { display: flex; gap: 10px; align-items: center; margin: 10px 0; opacity: .92; }
.auth-hero .feature i { color: #67e8f9; }
.auth-form-side { display: grid; place-items: center; padding: 32px; }
.auth-card { width: 100%; max-width: 380px; }
.auth-card h2 { font-weight: 700; margin-bottom: 4px; }
.auth-card .sub { color: var(--muted); margin-bottom: 26px; }

@media (max-width: 860px) {
  .auth-wrap { grid-template-columns: 1fr; }
  .auth-hero { display: none; }
}

/* ---------------- App shell ---------------- */
.app { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: #0c1b3a;
  color: #cbd5e1;
  position: fixed;
  inset: 0 auto 0 0;
  display: flex;
  flex-direction: column;
  z-index: 1040;
  transition: transform .25s ease;
}
.sidebar .brand {
  display: flex; align-items: center; gap: 11px;
  padding: 20px 20px;
  color: #fff; font-weight: 700; font-size: 18px;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.sidebar .brand .logo {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  display: grid; place-items: center; color:#fff;
}
.sidebar .nav-section { padding: 16px 14px 4px; font-size: 11px; letter-spacing: .8px; text-transform: uppercase; color: #64748b; }
.sidebar .nav-link {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 16px; margin: 2px 10px; border-radius: 9px;
  color: #cbd5e1; text-decoration: none; font-weight: 500; font-size: 14.5px;
}
.sidebar .nav-link i { font-size: 17px; width: 20px; text-align: center; }
.sidebar .nav-link:hover { background: rgba(255,255,255,.06); color: #fff; }
.sidebar .nav-link.active { background: linear-gradient(135deg, var(--blue), var(--cyan)); color: #fff; box-shadow: 0 6px 16px rgba(6,182,212,.25); }
.sidebar .nav-link .soon { margin-left: auto; font-size: 10px; background: rgba(255,255,255,.12); color:#94a3b8; padding: 2px 7px; border-radius: 999px; }
.sidebar .spacer { flex: 1; }
.sidebar .side-foot { padding: 16px; font-size: 12px; color: #475569; border-top: 1px solid rgba(255,255,255,.07); }

.main { flex: 1; margin-left: var(--sidebar-w); display: flex; flex-direction: column; min-width: 0; }

.topbar {
  height: 64px; background: var(--surface);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; gap: 16px;
  padding: 0 22px; position: sticky; top: 0; z-index: 1030;
}
.topbar .search { flex: 1; max-width: 440px; position: relative; }
.topbar .search i { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); color: var(--muted); }
.topbar .search input {
  width: 100%; padding: 9px 12px 9px 38px; border: 1px solid var(--line);
  border-radius: 10px; background: var(--bg); font-size: 14px;
}
.topbar .search input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(6,182,212,.15); }
.topbar .spacer { flex: 1; }
.icon-btn { position: relative; width: 40px; height: 40px; border-radius: 10px; border: 1px solid var(--line); background: var(--surface); color: var(--ink); display: grid; place-items: center; cursor: pointer; }
.icon-btn:hover { background: var(--bg); }
.icon-btn .badge-dot { position: absolute; top: 7px; right: 8px; width: 8px; height: 8px; border-radius: 50%; background: var(--danger); border: 2px solid #fff; }
.hamburger { display: none; }

.content { padding: 26px 28px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; flex-wrap: wrap; gap: 12px; }
.page-head h1 { font-size: 24px; font-weight: 700; margin: 0; }
.page-head .crumb { color: var(--muted); font-size: 13.5px; margin-top: 3px; }

/* KPI cards */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi {
  background: var(--surface); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px; display: flex; align-items: center; gap: 14px;
}
.kpi .ic { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 22px; color: #fff; flex-shrink: 0; }
.kpi .label { color: var(--muted); font-size: 13px; }
.kpi .value { font-size: 26px; font-weight: 700; line-height: 1.1; }
.kpi.k-total .ic { background: var(--blue); }
.kpi.k-open .ic { background: #2563eb; }
.kpi.k-pending .ic { background: var(--warning); }
.kpi.k-progress .ic { background: var(--cyan); }
.kpi.k-resolved .ic { background: var(--success); }
.kpi.k-overdue .ic { background: var(--danger); }
.kpi.k-unassigned .ic { background: var(--slate); }
.kpi.k-staff .ic { background: var(--indigo); }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.panel h3 { font-size: 15px; font-weight: 700; margin: 0 0 4px; }
.panel .panel-sub { color: var(--muted); font-size: 13px; margin-bottom: 14px; }
.grid-2 { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-top: 16px; }

.empty {
  text-align: center; color: var(--muted); padding: 36px 16px;
}
.empty i { font-size: 34px; color: #cbd5e1; }

.banner {
  display: flex; gap: 12px; align-items: flex-start;
  background: #eff6ff; border: 1px solid #bfdbfe; color: #1e40af;
  padding: 13px 16px; border-radius: 12px; margin-bottom: 20px; font-size: 14px;
}
.banner i { font-size: 18px; margin-top: 1px; }

@media (max-width: 1100px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } .grid-2 { grid-template-columns: 1fr; } }
@media (max-width: 992px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .hamburger { display: grid; }
}
@media (max-width: 560px) { .kpi-grid { grid-template-columns: 1fr; } .topbar .search { display: none; } }

.backdrop { display: none; position: fixed; inset: 0; background: rgba(2,6,23,.45); z-index: 1035; }
.backdrop.show { display: block; }