/* PF-001 — Missed-Call Revenue Calculator
   3-pass polish matching Redwood design system.
   Works standalone AND embedded in an iframe on a marketing page.
   - Pass 1: hierarchy, 4/8/12/16/24/32/48 spacing rhythm
   - Pass 2: tighter copy, sharper CTA, fewer generic-SaaS tropes
   - Pass 3: focus-visible, contrast, prefers-reduced-motion
*/

:root {
  --bg: #0b0e13;
  --bg-soft: #10141b;
  --panel: #141a23;
  --panel-2: #1a2230;
  --ink: #e9edf3;
  --ink-mute: #a7b1bf;
  --ink-dim: #6c7888;
  --line: #1f2835;
  --line-strong: #2c3a4d;
  --accent: #8ab8ff;
  --accent-2: #5b9bff;
  --accent-warm: #ffb169;
  --accent-green: #7dd3a8;
  --danger: #ff8a7a;
  --radius: 12px;
  --radius-sm: 8px;
  --radius-tag: 5px;
  --mono: ui-monospace, "JetBrains Mono", SFMono-Regular, Menlo, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --shadow-lg: 0 24px 60px -30px rgba(0,0,0,0.6), 0 1px 0 rgba(255,255,255,0.04) inset;
  --shadow-md: 0 12px 30px -20px rgba(0,0,0,0.55), 0 1px 0 rgba(255,255,255,0.04) inset;
}

* { box-sizing: border-box; }

*:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-feature-settings: "cv11", "ss01", "ss03";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

body {
  min-height: 100vh;
  background-image:
    radial-gradient(1200px 600px at 50% -200px, rgba(91, 155, 255, 0.08), transparent 70%),
    radial-gradient(800px 400px at 90% 100%, rgba(255, 177, 105, 0.04), transparent 70%);
}

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

.page-shell {
  width: min(1120px, 100% - 32px);
  margin: 0 auto;
  padding: 48px 0 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ============ HERO ============ */
.hero {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 760px;
  padding: 8px 0 8px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 12px rgba(125, 211, 168, 0.6);
}

h1#page-title {
  font-size: clamp(28px, 4.2vw, 44px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: var(--ink);
}

.subtitle {
  color: var(--ink-mute);
  font-size: 16px;
  line-height: 1.55;
  max-width: 640px;
}

/* ============ CALCULATOR GRID ============ */
.calculator {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: 16px;
  align-items: start;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.panel-heading {
  margin-bottom: 20px;
}

.panel-heading h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 4px;
}

.panel-heading p {
  color: var(--ink-mute);
  font-size: 13px;
  line-height: 1.5;
}

/* ============ FIELDS ============ */
.field {
  display: grid;
  gap: 8px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.field:first-of-type { border-top: 0; padding-top: 4px; }

.field > span {
  font-size: 13px;
  font-weight: 500;
  color: var(--ink-mute);
  letter-spacing: -0.005em;
}

.field input[type="number"] {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font: inherit;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
  background: var(--bg-soft);
  transition: border-color 140ms ease, background 140ms ease;
  min-height: 42px;
}
.field input[type="number"]:hover { border-color: #3a4a60; }
.field input[type="number"]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: transparent;
}

.money-input {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
}
.money-input span {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 14px;
  pointer-events: none;
}
.money-input input { padding-left: 28px !important; }

.range-field {
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 12px 16px;
}
.range-field > span { grid-column: 1 / -1; }
.range-field input[type="range"] {
  width: 100%;
  grid-column: 1;
  accent-color: var(--accent);
}
.range-field strong {
  grid-column: 2;
  grid-row: 2;
  justify-self: end;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(138, 184, 255, 0.08);
  border: 1px solid rgba(138, 184, 255, 0.22);
  border-radius: var(--radius-tag);
  padding: 3px 8px;
  min-width: 48px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* ============ METRICS (outputs) ============ */
.metric {
  padding: 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-soft);
  border: 1px solid var(--line);
}

.metric.primary {
  background: linear-gradient(180deg, rgba(138, 184, 255, 0.08), var(--bg-soft));
  border-color: rgba(138, 184, 255, 0.3);
  padding: 20px;
  margin-bottom: 12px;
}
.metric.primary .metric-label { color: var(--accent); }
.metric.primary strong { color: var(--ink); }

.metric.highlight {
  background: linear-gradient(180deg, rgba(255, 177, 105, 0.06), var(--bg-soft));
  border-color: rgba(255, 177, 105, 0.22);
}
.metric.highlight strong { color: var(--accent-warm); }

.metric-label {
  display: block;
  color: var(--ink-dim);
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.metric strong {
  display: block;
  font-size: clamp(22px, 3.4vw, 32px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.metric-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* ============ COMPARISON ============ */
.comparison {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.comparison > h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  color: var(--ink);
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.comparison-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-radius: var(--radius-sm);
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  position: relative;
}
.comparison-card .card-label {
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
  padding-bottom: 8px;
  margin-bottom: 4px;
  border-bottom: 1px solid var(--line);
}
.comparison-card.before {
  border-left: 2px solid var(--danger);
}
.comparison-card.before .card-label { color: var(--danger); }
.comparison-card.after {
  border-left: 2px solid var(--accent-green);
}
.comparison-card.after .card-label { color: var(--accent-green); }

.comparison-card p { color: var(--ink-mute); font-size: 13.5px; line-height: 1.5; }
.comparison-card p strong { color: var(--ink); font-weight: 600; }
.comparison-card span { color: var(--ink-dim); font-size: 12px; }

.comparison-card .money {
  color: var(--ink) !important;
  font-size: clamp(24px, 4.5vw, 36px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1;
  margin-top: 4px;
  font-variant-numeric: tabular-nums;
}

/* ============ CTA ============ */
.cta {
  background: linear-gradient(180deg, rgba(138, 184, 255, 0.08), var(--panel) 80%);
  border: 1px solid rgba(138, 184, 255, 0.22);
  border-radius: var(--radius);
  padding: 24px 24px 20px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px 24px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}

.cta-copy h2 {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin-bottom: 4px;
}
.cta-copy p {
  color: var(--ink-mute);
  font-size: 14px;
  line-height: 1.5;
  max-width: 52ch;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.cta .small-note {
  grid-column: 1 / -1;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-dim);
  letter-spacing: 0.02em;
  margin-top: 4px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  letter-spacing: -0.005em;
  transition: background 140ms ease, border-color 140ms ease, transform 80ms ease;
  border: 1px solid transparent;
}

.primary-button {
  background: var(--accent);
  color: #0a1628;
}
.primary-button:hover { background: #a2c6ff; }
.primary-button:active { transform: translateY(1px); }

.secondary-button {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.secondary-button:hover { border-color: var(--accent); color: var(--accent); }
.secondary-button:active { transform: translateY(1px); }

/* ============ FOOTER ============ */
footer {
  padding: 16px 0 8px;
  border-top: 1px solid var(--line);
  color: var(--ink-dim);
  text-align: center;
}
footer p {
  font-size: 12px;
  line-height: 1.5;
  max-width: 60ch;
  margin: 0 auto;
}

/* ============ RESPONSIVE ============ */
@media (max-width: 900px) {
  .calculator { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
}

@media (max-width: 620px) {
  .page-shell { width: min(100% - 16px, 1120px); padding: 24px 0 24px; gap: 16px; }
  .panel, .comparison, .cta { padding: 20px; }
  .comparison-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr; }
  h1#page-title { font-size: 26px; }
  .button { width: 100%; }
  .cta-actions { width: 100%; }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  .button, .field input, .metric, .comparison-card {
    transition: none !important;
  }
  .button:active { transform: none; }
}