:root {
  color-scheme: light;
  --navy: #102d4f;
  --blue: #176dc0;
  --blue-dark: #0d4b83;
  --sky: #e9f3fc;
  --ink: #17263a;
  --muted: #64748b;
  --line: #d8e2ed;
  --surface: #ffffff;
  --background: #f2f6fa;
  --green: #16845b;
  --green-soft: #e8f6f0;
  --red: #ca3543;
  --red-soft: #fff0f1;
  --amber: #a86808;
  --amber-soft: #fff7e5;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; color: var(--ink); background: var(--background); }
button, input { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.muted { color: var(--muted); }
.eyebrow { margin: 0 0 5px; color: var(--blue); font-size: .75rem; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 9px; font-size: clamp(1.8rem, 4vw, 2.6rem); line-height: 1.08; }
h2 { margin-bottom: 6px; }

.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top left,#ddecfb,transparent 38%),linear-gradient(135deg,#f8fbfe,#e9f1f8); }
.login-card { width: min(440px,100%); padding: 38px; border: 1px solid rgba(255,255,255,.8); border-radius: 28px; background: rgba(255,255,255,.94); box-shadow: 0 25px 70px rgba(16,45,79,.14); }
.brand-mark { width: 62px; height: 62px; margin-bottom: 22px; display: grid; place-items: center; border-radius: 18px; color: #fff; background: linear-gradient(145deg,#2385d4,#0d436f); font-size: 1.65rem; font-weight: 900; box-shadow: 0 12px 24px rgba(23,109,192,.22); }
.brand-mark.small { width: 42px; height: 42px; margin: 0; border-radius: 12px; font-size: 1.05rem; box-shadow: none; }
.stack-form { display: grid; gap: 15px; margin-top: 28px; }
label { display: grid; gap: 7px; color: #34455b; font-size: .86rem; font-weight: 760; }
label small { color: var(--muted); font-weight: 500; }
input { width: 100%; min-height: 48px; padding: 11px 13px; border: 1px solid #c7d5e4; border-radius: 12px; color: var(--ink); background: #fbfdff; outline: none; }
input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(23,109,192,.13); }
.primary-button, .secondary-button, .icon-button { min-height: 42px; padding: 10px 16px; border-radius: 11px; border: 0; font-weight: 800; }
.primary-button { color: #fff; background: linear-gradient(135deg,#237fd0,#124b80); box-shadow: 0 8px 18px rgba(18,75,128,.18); }
.primary-button:disabled { opacity: .55; cursor: wait; }
.secondary-button { color: var(--navy); border: 1px solid #c5d4e2; background: #fff; box-shadow: none; }
.icon-button { width: 42px; padding: 0; font-size: 1.6rem; color: var(--muted); background: #eef3f7; }
.full-button { width: 100%; margin-top: 18px; }
.status-line { min-height: 20px; margin: 3px 0 0; color: var(--muted); font-size: .88rem; }
.status-line.error { color: var(--red); }

.topbar { min-height: 72px; padding: 12px max(22px,calc((100vw - 1240px)/2)); display: flex; align-items: center; justify-content: space-between; gap: 18px; color: #fff; background: linear-gradient(120deg,#0e2949,#15568e); box-shadow: 0 8px 24px rgba(14,41,73,.16); }
.brand-row, .topbar-actions { display: flex; align-items: center; gap: 13px; }
.topbar .eyebrow { color: #8ec8f5; }
.health-chip { padding: 8px 12px; border-radius: 999px; font-size: .78rem; font-weight: 800; background: rgba(255,255,255,.14); }
.health-chip.online { background: rgba(54,211,145,.2); }
main { width: min(1240px,calc(100% - 36px)); margin: 28px auto 56px; }
.hero-panel { padding: 30px; display: flex; justify-content: space-between; align-items: center; gap: 24px; border-radius: 22px; color: #fff; background: linear-gradient(120deg,#123b68,#1e73b8); box-shadow: 0 18px 40px rgba(18,59,104,.17); }
.hero-panel p:last-child { margin-bottom: 0; color: #d9ebfa; }
.hero-panel .eyebrow { color: #9ed1f7; }
.hero-panel .primary-button { color: var(--navy); background: #fff; white-space: nowrap; }
.metrics-grid { margin: 20px 0; display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.metrics-grid article { padding: 18px; border: 1px solid var(--line); border-radius: 17px; background: var(--surface); box-shadow: 0 8px 20px rgba(24,54,84,.05); }
.metrics-grid span { display: block; color: var(--muted); font-size: .82rem; font-weight: 700; }
.metrics-grid strong { display: block; margin-top: 7px; font-size: 1.85rem; color: var(--navy); }
.content-panel { padding: 24px; border: 1px solid var(--line); border-radius: 22px; background: var(--surface); box-shadow: 0 12px 30px rgba(24,54,84,.06); }
.section-heading, .dialog-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.customer-grid { display: grid; gap: 14px; }
.customer-card { padding: 18px; display: grid; grid-template-columns: minmax(220px,1.2fr) minmax(180px,.85fr) minmax(190px,.8fr) auto; gap: 16px; align-items: center; border: 1px solid var(--line); border-radius: 16px; background: #fbfdff; }
.customer-card h3 { margin: 0 0 5px; }
.customer-card small, .customer-card span { display: block; color: var(--muted); }
.customer-meta { display: grid; gap: 6px; font-size: .84rem; }
.customer-meta b { color: var(--ink); }
.status-stack { display: grid; gap: 7px; }
.status-badge { width: fit-content; padding: 5px 9px; border-radius: 999px; font-size: .75rem; font-weight: 850; }
.status-badge.green { color: var(--green); background: var(--green-soft); }
.status-badge.red { color: var(--red); background: var(--red-soft); }
.status-badge.pending { color: var(--amber); background: var(--amber-soft); }
.card-actions { display: grid; gap: 8px; }
.empty-state { padding: 40px 20px; border: 1px dashed #c9d8e6; border-radius: 16px; text-align: center; color: var(--muted); background: #f9fbfd; }

.modal { width: min(760px,calc(100% - 28px)); max-height: calc(100vh - 30px); padding: 25px; border: 0; border-radius: 22px; color: var(--ink); box-shadow: 0 30px 80px rgba(10,31,52,.3); }
.modal::backdrop { background: rgba(12,31,49,.58); backdrop-filter: blur(3px); }
.form-grid { margin-top: 20px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .wide { grid-column: 1/-1; }
.dialog-actions { margin-top: 20px; display: flex; justify-content: flex-end; gap: 10px; }
.credential-modal { width: min(620px,calc(100% - 28px)); }
.credential-box { margin-top: 12px; padding: 14px; display: grid; grid-template-columns: 1fr auto; gap: 8px 14px; align-items: center; border: 1px solid var(--line); border-radius: 14px; background: #f5f9fd; }
.credential-box span { grid-column: 1/-1; color: var(--muted); font-size: .75rem; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
.credential-box code, .credential-box strong { overflow-wrap: anywhere; font-size: .95rem; }

@media (max-width: 920px) {
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .customer-card { grid-template-columns: 1fr 1fr; }
  .card-actions { grid-column: 1/-1; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .topbar { align-items: flex-start; }
  .topbar-actions { flex-direction: column; align-items: flex-end; }
  main { width: min(100% - 22px,1240px); margin-top: 14px; }
  .hero-panel { padding: 22px; align-items: flex-start; flex-direction: column; }
  .metrics-grid, .form-grid, .customer-card { grid-template-columns: 1fr; }
  .form-grid .wide { grid-column: auto; }
  .card-actions { grid-column: auto; }
  .content-panel { padding: 17px; }
  .login-card { padding: 27px 22px; }
}