:root {
  --forge-bg-base: #e8edf5;
  --forge-glass: rgba(255, 255, 255, 0.56);
  --forge-glass-strong: rgba(255, 255, 255, 0.76);
  --forge-border: rgba(255, 255, 255, 0.68);
  --forge-line: rgba(80, 112, 160, 0.14);
  --forge-text: #1e293b;
  --forge-muted: #64748b;
  --forge-faint: #94a3b8;
  --forge-accent: #2563eb;
  --forge-accent-2: #0ea5e9;
  --forge-success: #059669;
  --forge-warning: #d97706;
  --forge-danger: #e11d48;
  --forge-radius-sm: 10px;
  --forge-radius-md: 14px;
  --forge-radius-lg: 18px;
  --forge-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --forge-shadow-md: 0 4px 16px rgba(100, 120, 180, 0.1), 0 1px 4px rgba(0, 0, 0, 0.04);
  --forge-shadow-lg: 0 8px 32px rgba(100, 120, 180, 0.15), 0 2px 8px rgba(0, 0, 0, 0.05);
}

body {
  background: var(--forge-bg-base) !important;
  color: var(--forge-text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 4% 0%, rgba(147, 197, 253, 0.5), transparent 34%),
    radial-gradient(circle at 94% 28%, rgba(196, 181, 253, 0.38), transparent 32%),
    radial-gradient(circle at 38% 100%, rgba(165, 218, 255, 0.46), transparent 34%),
    linear-gradient(135deg, #e0e7ff 0%, #dbeafe 25%, #e0f2fe 50%, #ede9fe 75%, #e8edf5 100%) !important;
  mask-image: none !important;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.36) 1px, transparent 1px) 0 0 / 42px 42px,
    linear-gradient(0deg, rgba(78, 104, 154, 0.06) 1px, transparent 1px) 0 0 / 42px 42px;
  opacity: 0.6;
}

.shell,
.app {
  position: relative;
  z-index: 1;
}

.shell {
  width: min(1680px, calc(100vw - 40px));
  margin: 20px auto;
}

.app {
  width: min(1680px, calc(100vw - 40px));
  padding: 20px 0;
}

.topbar,
.module-tabs,
.toolbar,
.panel,
.search-strip,
.mail-list-panel,
.mail-detail-panel,
.log-panel,
.table-wrap,
.accounts,
.modal {
  border: 1px solid var(--forge-border) !important;
  border-radius: var(--forge-radius-lg) !important;
  background: var(--forge-glass) !important;
  box-shadow: var(--forge-shadow-md) !important;
  backdrop-filter: blur(28px) saturate(1.4) !important;
  -webkit-backdrop-filter: blur(28px) saturate(1.4) !important;
}

.topbar {
  min-height: 76px !important;
  padding: 14px 22px !important;
  margin-bottom: 14px !important;
}

.brand-mark {
  width: 42px !important;
  height: 42px !important;
  border-radius: 12px !important;
  background: linear-gradient(135deg, #3b82f6, #06b6d4) !important;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3) !important;
}

.brand-copy strong {
  color: var(--forge-text) !important;
  font-size: 18px !important;
  font-weight: 800 !important;
}

.brand-copy em {
  color: var(--forge-muted) !important;
  font-size: 12px !important;
}

.topnav a,
.meta-chip,
.module-tab,
button,
.button {
  border-radius: var(--forge-radius-sm) !important;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease !important;
}

.topnav a,
.meta-chip {
  min-height: 28px !important;
  padding: 4px 7px !important;
  border: 1px solid rgba(0, 0, 0, 0.06) !important;
  background: rgba(255, 255, 255, 0.55) !important;
  color: var(--forge-muted) !important;
  font-size: 11px !important;
  font-weight: 700 !important;
}

.topnav a:hover,
.meta-chip:hover,
button:hover:not(:disabled),
.button:hover:not(:disabled) {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.86) !important;
}

.module-tabs {
  padding: 4px !important;
  gap: 5px !important;
}

.module-tab {
  min-height: 28px !important;
  padding: 4px 7px !important;
  color: var(--forge-muted) !important;
  font-size: 11px !important;
}

button,
.button {
  min-height: 28px !important;
  padding: 4px 7px !important;
  font-size: 11px !important;
  line-height: 1.15 !important;
  white-space: nowrap !important;
}

.module-tab.active {
  background: linear-gradient(135deg, var(--forge-accent), var(--forge-accent-2)) !important;
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.28) !important;
}

input,
select,
textarea {
  border-color: rgba(0, 0, 0, 0.06) !important;
  border-radius: var(--forge-radius-sm) !important;
  background: rgba(255, 255, 255, 0.66) !important;
  color: var(--forge-text) !important;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(37, 99, 235, 0.42) !important;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1) !important;
  outline: none !important;
}

.primary,
.button-primary,
.segmented button[aria-pressed="true"] {
  border-color: transparent !important;
  background: linear-gradient(135deg, var(--forge-accent), var(--forge-accent-2)) !important;
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.24) !important;
}

.ghost,
.button-secondary,
.button-ghost,
button:not(.primary):not(.button-primary) {
  background: rgba(255, 255, 255, 0.52) !important;
  border-color: rgba(0, 0, 0, 0.06) !important;
  color: var(--forge-muted) !important;
}

.workspace {
  gap: 14px !important;
}

.panel,
.mail-list-panel,
.mail-detail-panel {
  overflow: hidden;
}

.panel-head,
.section-head {
  border-color: var(--forge-line) !important;
}

.eyebrow,
.stat-label,
.status-row,
.status-line,
.mail-item-meta,
.mail-item-preview,
label span,
.form-field > span,
.auto-fields,
.empty {
  color: var(--forge-muted) !important;
}

.counter,
.status-pill {
  border: 1px solid rgba(37, 99, 235, 0.14) !important;
  background: rgba(37, 99, 235, 0.08) !important;
  color: var(--forge-accent) !important;
}

.mailbox-row,
.mail-item,
.stat,
.log-item,
th,
td,
.session-guide,
.notice {
  border-color: rgba(0, 0, 0, 0.06) !important;
}

.mailbox-row,
.mail-item,
.stat,
.log-item {
  background: rgba(255, 255, 255, 0.52) !important;
}

.mail-item.active {
  background: rgba(255, 255, 255, 0.88) !important;
  border-color: rgba(37, 99, 235, 0.38) !important;
  box-shadow: inset 4px 0 0 var(--forge-accent), var(--forge-shadow-sm) !important;
}

th {
  background: rgba(239, 246, 255, 0.88) !important;
  color: var(--forge-muted) !important;
}

.mail-detail pre,
.mail-html-frame {
  border-color: rgba(0, 0, 0, 0.06) !important;
  border-radius: var(--forge-radius-md) !important;
  background: rgba(255, 255, 255, 0.72) !important;
}

.ok,
.ok-text,
.status-line.is-ok {
  color: var(--forge-success) !important;
}

.bad,
.bad-text,
.danger,
.status-line.is-error {
  color: var(--forge-danger) !important;
}

@media (max-width: 720px) {
  .shell,
  .app {
    width: calc(100vw - 12px);
    margin: 6px auto;
    padding-top: 0;
  }

  .topbar,
  .module-tabs,
  .toolbar,
  .panel,
  .search-strip,
  .mail-list-panel,
  .mail-detail-panel,
  .panel-head,
  .panel-body {
    border-radius: var(--forge-radius-md) !important;
  }
}