/* Email List Growth Forecast – theme matched to EFO */
/* Based on your previous calculator’s tokens, spacing, components, and responsive grid. */
*{box-sizing:border-box;margin:0;padding:0}
: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);
}
html,body{height:100%;font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial;color:var(--ink);background:var(--bg);line-height:1.55}
.email-calculator{max-width:1040px;margin:0 auto;padding:calc(var(--space)*1.5) var(--space)}
.calculator-header{text-align:center;display:flex;flex-direction:column;align-items:center;margin-bottom:calc(var(--space) * 1.25)}
.calculator-icon{width:56px;height:56px;margin:0 auto 10px;display:grid;place-items:center;border-radius:50%;color:var(--primary-contrast);background:var(--primary)}
.calculator-title{font-size:clamp(26px,2.8vw,36px);font-weight:800;letter-spacing:.2px;margin-bottom:6px}
.calculator-subtitle{text-align:center;color:var(--muted);max-width:760px;margin:0 auto}
.calculator-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:calc(var(--space)*1.1);margin-top:var(--space);box-shadow:var(--shadow)}

.validation-banner{display:flex;gap:8px;align-items:flex-start;background:#F7F9FF;border:1px solid #E5E7EE;border-radius:12px;padding:12px 14px;margin-bottom:14px;font-size:14px}
.validation-banner.warn{background:#FFF7ED;border-color:#FED7AA}
.validation-banner strong{font-weight:800;margin-right:4px}

.form-group{margin-bottom:18px}
.form-label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
.text-input{width:100%;padding:12px 12px;border:1px solid var(--border);border-radius:10px;background:#fff}
.text-input:focus{outline:2px solid #DBEAFE;border-color:#93C5FD}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}

.info{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;margin-left:6px;border-radius:50%;font-size:12px;font-weight:800;color:#1D4ED8;background:#E8F0FF;cursor:default;position:relative}
.info::after{content:attr(data-tip);position:absolute;left:50%;transform:translateX(-50%) translateY(6px);min-width:240px;max-width:360px;padding:10px 12px;border-radius:10px;background:#111;color:#fff;font-size:12px;line-height:1.45;box-shadow:var(--shadow);opacity:0;pointer-events:none;transition:opacity .15s ease, transform .15s ease;white-space:pre-line;z-index:20}
.info:hover::after{opacity:1;transform:translateX(-50%) translateY(10px)}

.radio-group{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.radio-group.pills{grid-template-columns:repeat(3,minmax(0,1fr))}
.radio-pill{display:flex;gap:10px;align-items:center;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;cursor:pointer;user-select:none}
.radio-pill input{appearance:none;width:18px;height:18px;border:2px solid var(--border);border-radius:50%;position:relative}
.radio-pill input:checked{border-color:var(--primary)}
.radio-pill input:checked::after{content:'';position:absolute;inset:4px;background:var(--primary);border-radius:50%}
.radio-pill span{display:flex;flex-direction:column}
.radio-pill strong{font-size:14px}
.radio-pill small{color:var(--muted);font-size:12px}

.calculate-btn{margin-top:10px;width:100%;display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 16px;border:none;border-radius:var(--radius-sm);background:var(--primary);color:var(--primary-contrast);font-weight:700;font-size:16px;cursor:pointer;box-shadow:var(--shadow);transition:transform .06s ease,filter .2s ease}
.calculate-btn:hover{filter:brightness(1.05)}
.calculate-btn:active{transform:translateY(1px)}

.details{margin:6px 0 8px}
.details summary{cursor:pointer;font-weight:700}

.results-section{margin-top:calc(var(--space)*1.1)}
.results-section.hidden{display:none}
.results-header{display:flex;gap:10px;align-items:center;justify-content:space-between;flex-wrap:wrap;margin-bottom:8px}
.results-title{font-size:20px;font-weight:800}
.sort-hint{color:var(--muted);font-size:13px}
.summary-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.summary-top{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center}
.rec-badge{display:inline-block;background:#E8F0FF;color:#1D4ED8;font-weight:800;padding:6px 10px;border-radius:9999px;font-size:12px;letter-spacing:.3px}
.rec-title{font-size:20px;font-weight:800;margin-top:6px}
.rec-subtitle{color:var(--muted);margin-top:4px}
.recommendation{display:flex;flex-direction:column;gap:2px}
.confidence{display:flex;flex-direction:column;align-items:center;gap:6px}
.gauge{--pct:0;width:92px;height:92px;border-radius:50%;background:conic-gradient(var(--primary) calc(var(--pct)*1%), #E5E7EB 0);display:grid;place-items:center;color:#111;box-shadow:inset 0 0 0 10px #fff, var(--shadow)}
.gauge span{font-weight:800;font-size:20px}
.gauge-caption{font-size:12px;color:var(--muted)}
.summary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:16px}
.panel{background:#F9FAFB;border:1px solid #EEF0F3;border-radius:12px;padding:12px}
.panel h4{font-size:14px;font-weight:800;margin-bottom:8px}
.panel h5{font-size:12px;font-weight:800;margin-top:10px;margin-bottom:6px}
.reason-list,.signal-list,.checklist{display:grid;gap:8px;padding-left:18px}

.chart-wrap{position:relative;width:100%;height:260px;border:1px dashed #E5E7EE;border-radius:12px;background:#fff;display:block;overflow:hidden;padding:6px}
#chart{width:100%;height:100%}
.chart-tip{position:absolute;pointer-events:none;background:#111;color:#fff;font-size:12px;padding:6px 8px;border-radius:8px;opacity:0;transform:translate(-50%,-120%);white-space:nowrap}

.table-scroll{overflow:auto;max-height:340px;background:#fff;border:1px solid #EEF0F3;border-radius:10px}
#detail-table{width:100%;border-collapse:collapse;font-size:13px}
#detail-table th,#detail-table td{padding:8px 10px;border-bottom:1px solid #F1F3F6;text-align:right}
#detail-table th:first-child,#detail-table td:first-child{text-align:left}

.secondary{background:#F7F9FF;border:1px dashed #E5E7EE}

@media (max-width:920px){.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:720px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .summary-grid{grid-template-columns:1fr}
  .summary-top{grid-template-columns:1fr;justify-items:center;text-align:center}
  .recommendation{align-items:center}
  .gauge{width:84px;height:84px}
}

/* — Sections & wrappers (drop-in snippet) — */

/* Section container for the tools grid */
.tools-section {
  margin-top: 24px;
}

/* Generic card-style wrapper used for both “How to Use” and “Tools” sections */
.how-wrap {
  max-width: 1100px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border, #E5E7EB);
  border-radius: var(--radius, 14px);
  box-shadow: 0 10px 25px -12px rgba(16, 24, 40, 0.15);
  padding: 16px;
}

/* Alias IDs (if you use IDs instead of the classes above) */
#related-tools {
  margin-top: 24px; /* mirrors .tools-section */
}

#related-tools-wrap {
  max-width: 1100px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--border, #E5E7EB);
  border-radius: var(--radius, 14px);
  box-shadow: 0 10px 25px -12px rgba(16, 24, 40, 0.15);
  padding: 16px;     /* mirrors .how-wrap */
}

/* — Tool grid + cards (drop-in snippet) — */

/* Grid wrapper for tool cards */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 8px;
}

/* Individual tool card */
.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: 0 10px 25px -12px rgba(16,24,40,.15);
  border-color: #E0E5EC;
}

/* Emoji/icon in the card header */
.tool-emoji {
  font-size: 22px;
}

/* Call-to-action row inside the card */
.tool-cta {
  margin-top: auto;
  font-weight: 800;
  color: #1D4ED8;
}

/* Responsive columns for the grid */
@media (max-width: 980px) {
  .tool-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 540px) {
  .tool-grid { grid-template-columns: 1fr; }
}