:root {
  color-scheme: light;
  --bg: #f6f7f5;
  --panel: #ffffff;
  --ink: #18212f;
  --muted: #657184;
  --line: #d8ded8;
  --accent: #0f766e;
  --accent-dark: #0b5f59;
  --danger: #b42318;
  --warning: #9a6700;
  --success: #067647;
  --shadow: 0 18px 50px rgba(24, 33, 47, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Helvetica, Arial, sans-serif;
  font-size: 15px;
}

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

button {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  padding: 0 16px;
  background: var(--accent);
  color: #ffffff;
  font-weight: 800;
  cursor: pointer;
}

button:hover {
  background: var(--accent-dark);
}

button.secondary {
  border: 1px solid var(--line);
  background: #ffffff;
  color: var(--ink);
}

button.secondary:hover {
  border-color: #b7c2ba;
  background: #f9faf9;
}

button.danger {
  color: var(--danger);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
  color: var(--ink);
  padding: 10px 12px;
}

textarea {
  resize: vertical;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.app-shell {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}

.topbar,
.section-header,
.session,
.form-actions,
.target-search,
.message-row-meta,
.row-actions {
  display: flex;
  align-items: center;
}

.topbar {
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: 0;
}

h2 {
  font-size: 1.25rem;
}

h3 {
  font-size: 1rem;
}

.eyebrow {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px;
  box-shadow: var(--shadow);
}

.login-form {
  display: grid;
  max-width: 420px;
  gap: 14px;
  margin-top: 16px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(340px, 430px) 1fr;
  gap: 18px;
  align-items: start;
}

.control-panel {
  position: sticky;
  top: 18px;
}

.section-header {
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.section-header.compact {
  margin-bottom: 10px;
}

.filters {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}

.list-status {
  color: var(--muted);
  font-size: 0.88rem;
  margin-bottom: 10px;
}

.message-list {
  display: grid;
  gap: 8px;
  max-height: calc(100vh - 260px);
  overflow: auto;
}

.message-row {
  display: grid;
  gap: 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 12px;
  cursor: pointer;
  text-align: left;
}

.message-row:hover,
.message-row:focus {
  border-color: #b7c2ba;
  outline: 0;
}

.message-row.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.12);
}

.message-row-title {
  color: var(--ink);
  font-weight: 900;
}

.message-row-meta {
  flex-wrap: wrap;
  gap: 6px;
}

.pill {
  border-radius: 999px;
  background: #eef3ef;
  color: var(--ink);
  padding: 3px 8px;
  font-size: 0.73rem;
  font-weight: 900;
}

.pill.disabled {
  background: #fef3f2;
  color: var(--danger);
}

.pill.scheduled {
  background: #fff7d6;
  color: var(--warning);
}

.pill.active {
  background: #e7f8ef;
  color: var(--success);
}

.row-actions {
  justify-content: flex-end;
  gap: 8px;
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.full,
.target-section,
.form-actions,
.preview {
  grid-column: 1 / -1;
}

.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
}

.switch-row input {
  width: 22px;
  height: 22px;
}

.target-section {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.target-search {
  gap: 8px;
}

.target-search button {
  flex: 0 0 auto;
}

.target-selected {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

.target-results {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.target-result {
  display: grid;
  grid-template-columns: 40px 1fr auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: #e8ece8;
  object-fit: cover;
}

.form-actions {
  justify-content: flex-end;
  gap: 10px;
}

.preview {
  margin-top: 22px;
}

.message-card {
  display: grid;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  padding: 14px;
}

.message-body {
  color: var(--ink);
}

.message-body p {
  margin: 0 0 10px;
}

.message-body p:last-child {
  margin-bottom: 0;
}

.message-card img {
  display: block;
  width: 100%;
  max-height: 360px;
  border-radius: 6px;
  object-fit: cover;
}

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

.session {
  justify-content: flex-end;
  gap: 10px;
}

.hidden {
  display: none !important;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  max-width: min(420px, calc(100% - 36px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: var(--shadow);
  padding: 12px 14px;
  color: var(--ink);
  font-weight: 800;
}

@media (max-width: 980px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .control-panel {
    position: static;
  }

  .message-list {
    max-height: none;
  }
}

@media (max-width: 640px) {
  .app-shell {
    width: min(100% - 20px, 1440px);
    padding-top: 14px;
  }

  .topbar,
  .section-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .filters,
  .editor-grid {
    grid-template-columns: 1fr;
  }

  .target-result {
    grid-template-columns: 40px 1fr;
  }

  .target-result button {
    grid-column: 1 / -1;
  }
}