:root {
  --bg-1: #f3ecde;
  --bg-2: #d7e4d7;
  --panel: rgba(250, 247, 240, 0.86);
  --panel-border: rgba(59, 74, 55, 0.14);
  --ink: #1f2b23;
  --muted: #5b665f;
  --accent: #b88a2c;
  --accent-strong: #7f5c10;
  --paper: #fffdf8;
  --shadow: 0 18px 50px rgba(30, 38, 31, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 248, 224, 0.92), transparent 28%),
    radial-gradient(circle at bottom right, rgba(177, 204, 181, 0.5), transparent 25%),
    linear-gradient(135deg, var(--bg-1), var(--bg-2));
}

.page-shell {
  display: grid;
  grid-template-columns: 360px 1fr;
  min-height: 100vh;
}

.control-panel,
.preview-panel {
  padding: 32px;
}

.control-panel {
  background: var(--panel);
  backdrop-filter: blur(14px);
  border-right: 1px solid var(--panel-border);
}

.panel-intro h1,
.preview-header h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.eyebrow {
  margin: 0 0 8px;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--accent-strong);
}

.brand-link {
  color: inherit;
  text-decoration: none;
}

.brand-link:hover,
.brand-link:focus-visible {
  text-decoration: underline;
}

.lede,
.status-text,
label {
  color: var(--muted);
}

.editor-form {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.template-picker-block {
  display: grid;
  gap: 10px;
}

.template-picker-header {
  display: grid;
  gap: 8px;
}

.template-grid {
  display: grid;
  gap: 6px;
  grid-template-columns: 1fr;
  max-height: 220px;
  overflow: auto;
  padding-right: 2px;
}

.template-card {
  text-align: left;
  padding: 6px 2px;
  border-radius: 0;
  border: 0;
  border-bottom: 1px solid rgba(58, 72, 56, 0.08);
  background: transparent;
  display: block;
  box-shadow: none;
}

.template-card.is-selected {
  border-bottom-color: rgba(47, 94, 71, 0.34);
  background: transparent;
}

.template-card-title {
  font-weight: 600;
  color: var(--muted);
}

.template-card.is-selected .template-card-title {
  color: var(--ink);
}

label {
  display: grid;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
}

.palette-fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
  display: grid;
  gap: 8px;
}

.palette-fieldset legend {
  padding: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
}

.background-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.palette-swatch {
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 999px;
  border: 2px solid rgba(58, 72, 56, 0.16);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.7);
}

.palette-swatch.is-selected {
  border-color: rgba(47, 94, 71, 0.78);
  box-shadow: 0 0 0 3px rgba(47, 94, 71, 0.12);
}

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

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid rgba(58, 72, 56, 0.14);
  background: rgba(255, 255, 255, 0.92);
  color: var(--ink);
}

textarea {
  resize: vertical;
  min-height: 104px;
}

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

.actions {
  display: flex;
  gap: 12px;
  margin-top: 6px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  cursor: pointer;
}

button.primary {
  background: linear-gradient(135deg, #2f5e47, #234738);
  color: #fff;
  box-shadow: 0 10px 24px rgba(35, 71, 56, 0.24);
}

button.secondary {
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  border: 1px solid rgba(58, 72, 56, 0.12);
}

.preview-panel {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 18px;
}

.preview-header {
  display: block;
}

.ad-slot {
  min-height: 90px;
  padding: 8px 0;
}

.ad-slot .ad_space {
  display: flex;
  justify-content: center;
}

.preview-stage {
  display: grid;
  justify-items: center;
  align-items: start;
  overflow: auto;
}

.certificate-preview {
  width: min(100%, 1100px);
  aspect-ratio: 11 / 8.5;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
  background: var(--paper);
  transition: transform 220ms ease, box-shadow 220ms ease;
}

.certificate-preview:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 60px rgba(30, 38, 31, 0.16);
}

.preview-canvas {
  display: block;
  width: 100%;
  height: auto;
}

.download-shell {
  max-width: 980px;
  margin: 0 auto;
  padding: 40px 20px 56px;
  display: grid;
  gap: 20px;
}

.download-card {
  background: rgba(250, 247, 240, 0.9);
  border: 1px solid rgba(59, 74, 55, 0.12);
  border-radius: 28px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.download-title {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--ink);
}

.download-copy {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1rem;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.download-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 12px 18px;
  text-decoration: none;
  font-weight: 600;
}

.primary-link {
  background: linear-gradient(135deg, #2f5e47, #234738);
  color: #fff;
  box-shadow: 0 10px 24px rgba(35, 71, 56, 0.24);
}

.secondary-link {
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  border: 1px solid rgba(58, 72, 56, 0.12);
}

@media (max-width: 1100px) {
  .page-shell {
    grid-template-columns: 1fr;
  }

  .control-panel {
    border-right: 0;
    border-bottom: 1px solid var(--panel-border);
  }
}

@media (max-width: 760px) {
  .control-panel,
  .preview-panel {
    padding: 20px;
  }

  .template-grid,
  .split-fields {
    grid-template-columns: 1fr;
  }

  .actions,
  .preview-header,
  .download-actions {
    flex-direction: column;
    align-items: stretch;
  }
}