:root {
  color-scheme: dark;
  --bg: #060815;
  --panel: rgba(10, 16, 34, 0.52);
  --panel-strong: rgba(11, 17, 38, 0.74);
  --border: rgba(175, 223, 255, 0.22);
  --text: #f4fbff;
  --muted: rgba(222, 239, 255, 0.72);
  --accent: #63dcff;
  --accent-2: #5c7cff;
  --danger: #ff7b92;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.backdrop {
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgba(2, 6, 18, 0.25), rgba(2, 6, 18, 0.55));
  pointer-events: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(100, 206, 255, 0.24), transparent 32%),
    radial-gradient(circle at bottom right, rgba(92, 124, 255, 0.2), transparent 30%);
  pointer-events: none;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1440px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 40px;
}

.glass {
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.card {
  border-radius: 28px;
  padding: 24px;
}

.auth-card {
  width: min(520px, calc(100vw - 32px));
  margin: 8vh auto 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-radius: 28px;
  padding: 20px 24px;
  margin-bottom: 20px;
}

.topbar-actions,
.form-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.summary-card {
  border-radius: 22px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(202, 236, 255, 0.18);
}

.summary-card strong {
  display: block;
  font-size: 30px;
  margin-top: 6px;
}

.content-grid {
  display: grid;
  grid-template-columns: 420px minmax(0, 1fr);
  gap: 20px;
}

.list-panel,
.detail-panel {
  min-height: 70vh;
}

.panel-header,
.detail-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.filters {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  gap: 10px;
  margin-bottom: 16px;
}

.customer-list,
.detail-list {
  display: grid;
  gap: 10px;
}

.customer-item,
.detail-list-item,
.meta-item {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(216, 238, 255, 0.14);
  border-radius: 20px;
}

.customer-item {
  padding: 16px;
  cursor: pointer;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.customer-item:hover,
.customer-item.active {
  transform: translateY(-1px);
  border-color: rgba(99, 220, 255, 0.4);
  background: rgba(99, 220, 255, 0.09);
}

.customer-item h3,
.detail-section h3,
h1,
h2,
h3,
p {
  margin: 0;
}

.customer-item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.subtle,
.message,
.meta-label,
.eyebrow {
  color: var(--muted);
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(196, 234, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  font-size: 13px;
}

.detail-badges {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.meta-item {
  padding: 16px;
}

.meta-item strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.full-span {
  grid-column: 1 / -1;
}

.toggle-grid {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.detail-section {
  margin-top: 24px;
}

.detail-list-item {
  padding: 14px 16px;
}

.stack {
  display: flex;
  flex-direction: column;
}

.gap-xs {
  gap: 6px;
}

.gap-md {
  gap: 16px;
}

.gap-lg {
  gap: 20px;
}

label span {
  font-size: 13px;
  color: var(--muted);
}

input,
select,
textarea,
button {
  font: inherit;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(193, 231, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 14px 16px;
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: rgba(219, 238, 255, 0.42);
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(99, 220, 255, 0.4);
  box-shadow: 0 0 0 3px rgba(99, 220, 255, 0.14);
}

.primary-button,
.ghost-button {
  border: 1px solid rgba(193, 231, 255, 0.16);
  border-radius: 16px;
  cursor: pointer;
  transition: transform 120ms ease, background 120ms ease, border-color 120ms ease;
}

.primary-button {
  padding: 14px 18px;
  color: #03101d;
  background: linear-gradient(135deg, #9eeeff, #69a5ff);
}

.ghost-button {
  padding: 12px 16px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
  border-color: rgba(99, 220, 255, 0.4);
}

.empty-state {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
}

.hidden {
  display: none !important;
}

@media (max-width: 1180px) {
  .summary-grid,
  .meta-grid,
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100vw - 18px, 100%);
    padding: 12px 0 24px;
  }

  .topbar,
  .card {
    padding: 18px;
    border-radius: 22px;
  }

  .summary-grid,
  .meta-grid,
  .form-grid,
  .filters {
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }
}