/* EFO-style theme tokens (adopted) */
:root{
  --bg:#EEF3FF; 
  --card:#fff; 
  --ink:#101828; 
  --muted:#667085;
  --primary:#3B82F6; 
  --primary-contrast:#fff; 
  --border:#E5E7EB;
  --shadow:0 10px 25px -12px rgba(16,24,40,.15);
  --radius:14px; 
  --radius-sm:10px; 
  --space:clamp(16px,2.5vw,24px);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  line-height: 1.55;
}

/* Container + header (re-skinned) */
#email-subject-tester .container {
  max-width: 1100px;
  margin: 0 auto;
  padding: calc(var(--space) * 1.5) var(--space);
}

.header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: calc(var(--space) * 1.1);
}
.title {
  font-size: clamp(26px, 2.8vw, 36px);
  font-weight: 800;
  letter-spacing: .2px;
  margin-bottom: 6px;
}
.subtitle {
  text-align: center;
  color: var(--muted);
  max-width: 760px;
  margin: 0 auto;
}

/* Grid */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 1024px){ .grid { grid-template-columns: 1fr; } }

/* Cards — adopt EFO card look */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
  overflow: hidden;
}
.card-header { padding: 16px 16px 0 16px; }
.card-title { font-size: 1.1rem; font-weight: 800; color: #0b1220; display: flex; align-items: center; justify-content: space-between; }
.card-content { padding: 16px; }

/* Inputs styled to match EFO */
.input-group { margin-bottom: 16px; }
.label { display: block; font-size: 14px; font-weight: 700; margin-bottom: 8px; color: #374151; }
.textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  font-size: 0.98rem;
  transition: box-shadow .15s ease, border-color .15s ease;
  resize: vertical;
}
.textarea:focus { outline: 2px solid #DBEAFE; border-color: #93C5FD; }

/* Copy row */
.char-info { display: flex; align-items: center; gap: 10px; margin-top: 8px; font-size: 13px; color: var(--muted); }
.copy-btn {
  background: #fff; border: 1px solid var(--border); color: #4b5563;
  cursor: pointer; padding: 8px 10px; border-radius: 10px; font-weight: 700;
  transition: filter .2s ease, transform .06s ease;
}
.copy-btn:hover { filter: brightness(1.03); }
.copy-btn:active { transform: translateY(1px); }

/* Badges adopt EFO chip tones */
.badge {
  display: inline-flex; align-items: center;
  padding: 6px 10px; font-size: 12px; font-weight: 800;
  border-radius: 9999px; letter-spacing: .3px;
  background: #E8F0FF; color: #1D4ED8;
}
.badge.success { background: #DCFCE7; color: #065F46; }
.badge.warning { background: #FEF3C7; color: #92400E; }
.badge.danger  { background: #FEE2E2; color: #991B1B; }

/* Progress bar using EFO palette */
.progress-container { margin-bottom: 12px; }
.progress-bar {
  width: 100%; height: 12px; background: #EDF2F7; border-radius: 8px; overflow: hidden; border: 1px solid var(--border);
}
.progress-fill { height: 100%; transition: width .35s ease; border-radius: 8px; }
.progress-fill.success { background: linear-gradient(90deg, #10b981, #059669); }
.progress-fill.warning { background: linear-gradient(90deg, #f59e0b, #d97706); }
.progress-fill.danger  { background: linear-gradient(90deg, #ef4444, #dc2626); }

/* Device checks */
.device-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.device-check { display: flex; align-items: center; gap: 8px; font-size: 0.95rem; color: #1f2937; }
.status-icon { width: 16px; height: 16px; border-radius: 6px; }
.status-icon.success { background: #10b981; position: relative; }
.status-icon.success::after {
  content: '✓'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -60%);
  color: white; font-size: 10px; font-weight: 800;
}
.status-icon.warning { background: #f59e0b; position: relative; }
.status-icon.warning::after {
  content: '!'; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -60%);
  color: white; font-size: 10px; font-weight: 800;
}

/* Previews adopt EFO panel vibe */
.preview-section { margin-bottom: 12px; }
.preview-header { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; font-size: .95rem; font-weight: 700; }
.preview-badge { font-size: 12px; padding: 2px 8px; background: #E0E7FF; color: #3730A3; border-radius: 9999px; }
.preview-badge.truncated { background: #F3F4F6; color: #374151; }
.preview-box {
  padding: 12px; background: #F9FAFB; border: 1px solid #E5E7EB; border-radius: 10px; word-break: break-word;
}

/* Variants list */
.variants-list { display: flex; flex-direction: column; gap: 12px; }
.variant-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px; border: 1px solid var(--border); border-radius: 12px; background: #fff;
}
.variant-content { flex: 1; }
.variant-text {
  font-size: .98rem; font-weight: 700; margin-bottom: 6px;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.variant-stats { display: flex; align-items: center; gap: 12px; font-size: .82rem; color: var(--muted); }
.variant-fit { display: flex; align-items: center; gap: 4px; }

/* Risk Analysis */
.warning-icon { color: #f59e0b; }
.risk-level { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; font-size: .95rem; }
.risk-terms-title { font-size: .95rem; font-weight: 700; margin-bottom: 6px; }
.risk-terms { display: flex; flex-wrap: wrap; gap: 8px; }
.risk-term { padding: 4px 8px; background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; border-radius: 8px; font-size: .85rem; }

/* Suggestions */
.lightbulb-icon { color: var(--primary); }
.suggestions-list { list-style: none; }
.suggestion-item { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 10px; font-size: .98rem; }
.suggestion-item:last-child { margin-bottom: 0; }
.suggestion-bullet { width: 8px; height: 8px; background: var(--primary); border-radius: 50%; margin-top: 6px; flex-shrink: 0; }

/* Placeholder card */
.placeholder-card { grid-column: 1 / -1; background: linear-gradient(180deg,#F8FAFF 0%,#FFFFFF 45%); }
.placeholder-content {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 32px 16px; text-align: center;
}
.placeholder-icon { font-size: 40px; margin-bottom: 12px; }
.placeholder-content h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: 6px; color: #111827; }
.placeholder-content p { color: var(--muted); }

/* Toast */
.toast {
  position: fixed; top: 20px; right: 20px;
  background: #10b981; color: white; padding: 12px 14px;
  border-radius: 10px; box-shadow: var(--shadow); z-index: 1000;
}

/* Related Tools section — copied styling from EFO */
.tools-section { margin-top: 24px; }
.how-wrap {
  max-width: 1100px; margin: 0 auto; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px;
}
.how-wrap h2 { font-size: 20px; font-weight: 800; margin-bottom: 8px; }
.how-wrap h3 { font-size: 16px; font-weight: 800; margin-top: 14px; margin-bottom: 6px; color: #111; }
.tool-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-top: 8px; }
.tool-card {
  display: flex; flex-direction: column; gap: 8px; background:#fff; border:1px solid #E5E7EB;
  border-radius:12px; padding:12px; text-decoration:none; color:inherit;
  transition: transform .08s ease, box-shadow .18s ease, border-color .18s ease;
}
.tool-card:hover { transform: translateY(-1px); box-shadow: var(--shadow); border-color: #E0E5EC; }
.tool-emoji { font-size: 22px; }
.tool-card h4 { font-size: 14px; font-weight: 800; }
.tool-card p { font-size: 13px; color: #667085; }
.tool-cta { margin-top: auto; font-weight: 800; color: #1D4ED8; }

/* Responsive */
@media (max-width: 768px) {
  .device-checks { grid-template-columns: 1fr; }
  .card-content { padding: 12px; }
  .tool-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 540px){
  .tool-grid{ grid-template-columns: 1fr; }
}