:root {
  color-scheme: light;
  --bg: #f6f8f6;
  --panel: #ffffff;
  --text: #17201c;
  --muted: #66736d;
  --line: #dce3df;
  --field: #f9faf9;
  --green: #1f7a63;
  --green-dark: #135744;
  --blue: #325f9f;
  --coral: #b65345;
  --amber: #936b16;
  --shadow: 0 10px 30px rgba(31, 44, 38, 0.08);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 32px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.1;
}

h2 {
  font-size: 17px;
  line-height: 1.2;
}

.status-strip {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.pill.ok {
  border-color: rgba(31, 122, 99, 0.28);
  color: var(--green-dark);
  background: #eef8f4;
}

.pill.warn {
  border-color: rgba(147, 107, 22, 0.3);
  color: var(--amber);
  background: #fff7e8;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.2fr) minmax(320px, 1fr);
  gap: 14px;
  align-items: start;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 16px;
}

.audience-panel,
.composer-panel {
  min-height: 620px;
}

.preview-panel,
.history-panel {
  grid-column: 3;
}

.history-panel {
  margin-top: 14px;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-heading.compact {
  margin-top: 16px;
  margin-bottom: 10px;
}

.icon-button,
.secondary-button,
.primary-button {
  min-height: 38px;
  border-radius: 6px;
  border: 1px solid var(--line);
  padding: 0 12px;
  background: #fff;
  color: var(--text);
  font-weight: 800;
}

.icon-button {
  width: 38px;
  padding: 0;
}

.primary-button {
  border-color: var(--green);
  background: var(--green);
  color: #fff;
}

.primary-button:hover {
  background: var(--green-dark);
}

.secondary-button:hover,
.icon-button:hover {
  border-color: #aab8b1;
  background: #f8faf9;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  min-height: 40px;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f1f4f2;
}

.segment {
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-weight: 800;
}

.segment.active {
  background: #fff;
  color: var(--text);
  box-shadow: 0 1px 4px rgba(31, 44, 38, 0.08);
}

.audience-mode {
  display: none;
  margin-top: 14px;
}

.audience-mode.active {
  display: block;
}

.audience-list,
.member-list,
.history-list {
  display: grid;
  gap: 8px;
}

.audience-card,
.member-row,
.history-row {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: inherit;
  text-align: left;
}

.audience-card {
  display: grid;
  gap: 6px;
  padding: 12px;
}

.audience-card.active {
  border-color: rgba(31, 122, 99, 0.55);
  box-shadow: inset 3px 0 0 var(--green);
}

.audience-card strong,
.history-row strong {
  display: block;
  font-size: 14px;
}

.audience-card span,
.history-row span,
.summary-row,
.send-status {
  color: var(--muted);
  font-size: 13px;
}

.field {
  display: grid;
  gap: 7px;
  margin-bottom: 13px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--field);
  color: var(--text);
  padding: 10px;
  font-weight: 500;
}

.field textarea {
  resize: vertical;
}

.grid-two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.toggle input {
  width: 18px;
  height: 18px;
  accent-color: var(--green);
}

.member-block {
  border-top: 1px solid var(--line);
  margin-top: 16px;
  padding-top: 2px;
}

.count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  height: 30px;
  border-radius: 6px;
  background: #eef3ff;
  color: var(--blue);
  font-weight: 900;
}

.member-list {
  max-height: 245px;
  overflow: auto;
}

.member-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-height: 38px;
  padding: 8px 10px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
}

.member-row.active {
  border-color: rgba(50, 95, 159, 0.55);
  background: #f2f6ff;
}

.summary-row {
  min-height: 38px;
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 10px;
  background: #fff;
}

.actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 4px;
}

.payload-preview {
  min-height: 405px;
  max-height: 470px;
  overflow: auto;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #101613;
  color: #d8f0e5;
  padding: 14px;
  font: 12px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.history-list {
  max-height: 222px;
  overflow: auto;
}

.history-row {
  padding: 10px;
}

.history-row.sent {
  border-left: 3px solid var(--green);
}

.history-row.dry {
  border-left: 3px solid var(--blue);
}

.history-row.failed {
  border-left: 3px solid var(--coral);
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns: 1fr 1fr;
  }

  .preview-panel,
  .history-panel {
    grid-column: auto;
  }
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 720px);
    padding-top: 16px;
  }

  .topbar,
  .workspace,
  .grid-two {
    grid-template-columns: 1fr;
    display: grid;
  }

  .topbar {
    align-items: start;
  }

  .status-strip {
    justify-content: start;
  }

  .audience-panel,
  .composer-panel {
    min-height: auto;
  }
}