:root {
  --bg: #f4efe6;
  --ink: #171412;
  --muted: #655f58;
  --panel: rgba(255, 250, 242, 0.92);
  --line: rgba(23, 20, 18, 0.1);
  --accent: #c54b2c;
  --accent-soft: #efb062;
  --ok: #1d7f58;
  --warn: #a75b0f;
  --danger: #8e2722;
  --shadow: 0 18px 60px rgba(53, 32, 14, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "PingFang SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(239, 176, 98, 0.42), transparent 28%),
    radial-gradient(circle at top right, rgba(197, 75, 44, 0.18), transparent 26%),
    linear-gradient(180deg, #faf4ea 0%, #f2ebde 55%, #efe6d8 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(23, 20, 18, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 20, 18, 0.03) 1px, transparent 1px);
  background-size: 22px 22px;
  pointer-events: none;
}

.shell {
  position: relative;
  padding: 24px;
  max-width: 1480px;
  margin: 0 auto;
}

.hero {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(135deg, rgba(255, 247, 233, 0.9), rgba(255, 252, 246, 0.72));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero__meta,
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  color: var(--muted);
}

.hero h1,
.panel h2,
.domain-card h3,
.conversation-card h3,
.message-card h3,
.manager-card h3 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
}

.hero h1 {
  margin-top: 10px;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 0.92;
}

.hero__summary {
  max-width: 900px;
  margin: 16px 0 0;
  font-size: 18px;
  line-height: 1.65;
  color: var(--muted);
}

.hero__actions {
  display: flex;
  align-items: end;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.token-field {
  display: grid;
  gap: 6px;
  min-width: min(320px, 100%);
}

.token-field span {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.flash-banner {
  display: inline-flex;
  margin-top: 18px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(29, 127, 88, 0.12);
  color: var(--ok);
  border: 1px solid rgba(29, 127, 88, 0.18);
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin-top: 24px;
}

.hero-stat {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(23, 20, 18, 0.08);
}

.hero-stat__value {
  font-size: 28px;
  font-weight: 700;
}

.hero-stat__label {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 18px;
  margin-top: 20px;
}

.panel {
  grid-column: span 4;
  padding: 22px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.panel--wide {
  grid-column: span 8;
}

.panel--control {
  grid-column: span 12;
}

.panel__header,
.panel-title-row,
.domain-card__top,
.conversation-card__meta,
.list-card__top,
.message-card__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.panel__header {
  margin-bottom: 18px;
}

.button,
.attachment-chip {
  border: 0;
  padding: 12px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), #db7c2c);
  color: white;
  font-weight: 700;
  cursor: pointer;
  font: inherit;
}

.button--secondary,
.attachment-chip {
  border: 1px solid rgba(23, 20, 18, 0.1);
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
}

.button--ghost {
  border: 1px solid rgba(23, 20, 18, 0.1);
  background: transparent;
  color: var(--muted);
}

.domain-grid,
.conversation-list,
.message-stack,
.list-stack {
  display: grid;
  gap: 14px;
}

.domain-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.domain-card,
.conversation-card,
.message-card,
.detail-empty,
.detail-summary,
.reply-composer,
.manager-card,
.list-card {
  border-radius: 18px;
  border: 1px solid rgba(23, 20, 18, 0.08);
  background: rgba(255, 255, 255, 0.8);
}

.domain-card,
.conversation-card,
.message-card,
.detail-empty,
.detail-summary,
.reply-composer,
.manager-card {
  padding: 18px;
}

.manager-card {
  padding: 20px;
}

.manager-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 16px;
}

.manager-card {
  grid-column: span 4;
}

.manager-card--wide {
  grid-column: span 8;
}

.domain-card dl {
  display: grid;
  gap: 10px;
  margin: 14px 0 0;
}

.domain-card dl div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}

.domain-card dt,
.conversation-card p,
.detail-empty p,
.detail-summary p,
.message-card__subject,
.attachment-row--empty,
.list-card p {
  color: var(--muted);
}

.pill,
.status,
.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pill,
.tag {
  background: rgba(239, 176, 98, 0.18);
  color: #7a4a0a;
}

.status {
  background: rgba(29, 127, 88, 0.12);
  color: var(--ok);
}

.status--pending,
.status--quarantine,
.status--queued,
.status--bounced {
  background: rgba(167, 91, 15, 0.12);
  color: var(--warn);
}

.status--disabled,
.status--failed {
  background: rgba(142, 39, 34, 0.12);
  color: var(--danger);
}

.conversation-card {
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.conversation-card:hover,
.conversation-card--selected {
  transform: translateY(-1px);
  border-color: rgba(197, 75, 44, 0.28);
  box-shadow: 0 10px 24px rgba(197, 75, 44, 0.12);
}

.conversation-card time,
.message-card time {
  display: block;
  font-size: 13px;
  color: var(--muted);
}

.tag-row,
.detail-summary__meta,
.message-actions,
.attachment-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.tag-row {
  margin-top: 10px;
}

.detail-shell {
  display: grid;
  gap: 16px;
}

.message-card__subject {
  margin: 12px 0;
  font-weight: 600;
}

.message-body,
.mono,
pre {
  padding: 14px;
  border-radius: 14px;
  background: rgba(244, 239, 230, 0.9);
  border: 1px solid rgba(23, 20, 18, 0.06);
  line-height: 1.7;
  white-space: pre-wrap;
}

.mono,
pre {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.list-stack--scroll {
  max-height: 460px;
  overflow: auto;
  padding-right: 4px;
}

.reply-composer {
  display: grid;
  gap: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: grid;
  gap: 8px;
}

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

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

.field--actions {
  display: flex;
  justify-content: flex-start;
  align-items: center;
}

.field--checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(244, 239, 230, 0.72);
  border: 1px solid rgba(23, 20, 18, 0.06);
}

.field--checkbox span {
  color: var(--ink);
}

.input {
  width: 100%;
  border: 1px solid rgba(23, 20, 18, 0.1);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  padding: 12px 14px;
  font: inherit;
}

.input--textarea {
  min-height: 124px;
  resize: vertical;
}

.input--code {
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 13px;
}

.code-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.inline-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.inline-form .button {
  align-self: flex-end;
}

.list-card {
  padding: 16px;
}

.list-card__meta {
  display: grid;
  gap: 6px;
  margin-top: 10px;
}

.list-card__meta time {
  font-size: 13px;
  color: var(--muted);
}

.empty-note {
  padding: 16px;
  border-radius: 16px;
  background: rgba(244, 239, 230, 0.72);
  border: 1px dashed rgba(23, 20, 18, 0.1);
  color: var(--muted);
}

.subtle {
  color: var(--muted);
}

@media (max-width: 1200px) {
  .manager-card,
  .manager-card--wide {
    grid-column: span 6;
  }
}

@media (max-width: 960px) {
  .panel,
  .panel--wide,
  .panel--control,
  .manager-card,
  .manager-card--wide {
    grid-column: span 12;
  }

  .form-grid,
  .code-pair {
    grid-template-columns: 1fr;
  }

  .shell {
    padding: 16px;
  }

  .hero {
    padding: 20px;
  }

  .detail-summary,
  .panel__header,
  .panel-title-row,
  .message-card__top,
  .domain-card__top,
  .conversation-card__meta,
  .list-card__top {
    flex-direction: column;
  }
}