:root {
  --ink: #171a1f;
  --muted: #667085;
  --line: #d9dee8;
  --panel: #ffffff;
  --wash: #f5f7fb;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --warn: #b42318;
  --shadow: 0 16px 40px rgba(23, 26, 31, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: var(--wash);
}

button,
input,
select {
  font: inherit;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  width: min(1240px, calc(100% - 28px));
  margin: 0 auto;
  padding: 18px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 900;
  text-decoration: none;
}

.brand span {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: white;
  background: var(--accent);
  border-radius: 8px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 20px;
  width: min(1240px, calc(100% - 28px));
  margin: 18px auto 56px;
}

.planner,
.results-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.planner {
  padding: clamp(22px, 4vw, 36px);
}

.results-panel {
  display: grid;
  align-content: start;
  gap: 16px;
  padding: 24px;
}

.panel-head {
  display: grid;
  gap: 8px;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1;
}

h2,
h3,
h4 {
  margin: 0;
}

.brief-form,
.field-grid,
.option-row {
  display: grid;
  gap: 16px;
}

.brief-form {
  margin-top: 28px;
}

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

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  color: var(--ink);
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: none;
}

input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}

.option-row {
  grid-template-columns: minmax(0, 220px) 1fr;
}

fieldset {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
}

legend {
  color: var(--muted);
  font-weight: 900;
}

fieldset label {
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

fieldset input {
  width: auto;
  min-height: auto;
}

.primary-button,
.secondary-button {
  min-height: 46px;
  padding: 0 18px;
  font-weight: 900;
  border-radius: 8px;
  cursor: pointer;
}

.primary-button {
  color: white;
  background: var(--accent);
  border: 0;
}

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

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

.status {
  padding: 12px 14px;
  color: var(--accent-dark);
  font-weight: 800;
  background: #e8f6f3;
  border-radius: 8px;
}

.status.error {
  color: var(--warn);
  background: #fff1f0;
}

.campaign-output,
.history-output,
.campaign-card,
.copy-stack {
  display: grid;
  gap: 14px;
}

.campaign-card {
  padding: 18px;
  background: #fbfcff;
  border: 1px solid var(--line);
  border-radius: 12px;
}

.strategy-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.strategy-grid div,
.copy-card,
.history-item {
  display: grid;
  gap: 7px;
  padding: 14px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.strategy-grid span,
.copy-card span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.55;
}

pre {
  margin: 0;
  white-space: pre-wrap;
  color: var(--ink);
  font: inherit;
  line-height: 1.5;
}

em,
.history-item small {
  color: var(--muted);
  font-style: normal;
  font-weight: 800;
}

.history-item {
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.history-item:hover {
  border-color: var(--accent);
}

@media (max-width: 920px) {
  .workspace,
  .field-grid,
  .option-row,
  .strategy-grid {
    grid-template-columns: 1fr;
  }
}