/* ═══════════════════════════════════════════
   APEX SYSTEMATIC — cost-of-stalling.css
   ═══════════════════════════════════════════
   1.  Hero
   2.  Calculator (inputs + results)
   3.  Methodology
   4.  Calibration
   5.  Final CTA
   6.  Media queries
═══════════════════════════════════════════ */


/* ── 1. Hero ── */
.cos-hero {
  padding: calc(var(--section-y) * 0.85) 0;
  border-bottom: 1px solid var(--border);
}

.cos-hero-inner {
  max-width: 820px;
}

.cos-hero h1 {
  margin-bottom: 1.5rem;
}

.cos-hero-sub {
  font-size: 1.1rem;
  line-height: 1.75;
  margin-bottom: 2rem;
  max-width: 700px;
}

.evidence-note {
  border-left: 1px solid var(--border-light);
  padding-left: 1.25rem;
}

.evidence-note p {
  font-size: 0.85rem;
  color: var(--text-dim);
  line-height: 1.6;
  margin: 0;
}

.evidence-note p + p {
  margin-top: 0.4rem;
}


/* ── 2. Calculator ── */
.calc-section {
  background: var(--surface);
}

.calc-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

/* ── Inputs ── */
.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.calc-input-block {
  display: flex;
  flex-direction: column;
}

.calc-label {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
}

.calc-label-num {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--gold);
  font-weight: 400;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.calc-label-text {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--white);
  line-height: 1.4;
}

.calc-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.calc-options-stacked {
  grid-template-columns: 1fr;
}

.calc-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 400;
  padding: 14px 18px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--ease), background var(--ease), color var(--ease);
  line-height: 1.4;
}

.calc-option:hover {
  border-color: var(--text-muted);
}

.calc-option.is-selected {
  background: rgba(201, 168, 76, 0.08);
  border-color: var(--gold);
  color: var(--white);
}

.calc-option.is-selected .calc-opt-desc {
  color: var(--text);
}

.calc-options-stacked .calc-option {
  padding: 16px 20px;
}

.calc-opt-title {
  font-weight: 500;
  color: var(--white);
  margin-bottom: 4px;
}

.calc-opt-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}


/* ── Results ── */
.calc-results {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 40px;
  border-radius: var(--radius);
  position: sticky;
  top: calc(var(--nav-h, 97px) + 24px);
}

.calc-results-empty {
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.calc-empty-h {
  font-size: 1.6rem !important;
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.calc-empty-p {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin: 0;
}

.calc-headline {
  margin-top: 0.75rem;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.calc-headline-num {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(2.6rem, 4.5vw, 3.6rem);
  color: var(--gold);
  line-height: 1.05;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.calc-headline-label {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.5;
  max-width: 360px;
}

.calc-breakdown {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}

.calc-stat {
  border-left: 1px solid var(--border-light);
  padding-left: 14px;
}

.calc-stat-num {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--white);
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.calc-stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.calc-context {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 22px 24px;
  border-radius: var(--radius);
  margin-bottom: 28px;
}

.calc-context .section-tag {
  margin-bottom: 0.65rem;
}

.calc-context p {
  font-size: 0.93rem;
  line-height: 1.65;
  color: var(--text);
  margin: 0;
}

.calc-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.calc-cta .btn {
  flex: 1;
  min-width: 140px;
}


/* ── 3. Methodology ── */
.method-section {
  background: var(--bg);
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.method-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 32px;
  border-radius: var(--radius);
}

.method-card .section-tag {
  margin-bottom: 0.8rem;
}

.method-h {
  margin-bottom: 0.85rem;
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 500;
}

.method-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

.method-src {
  font-size: 0.78rem;
  color: var(--text-dim);
  line-height: 1.5;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.method-callout {
  background: var(--surface-2);
  border: 1px solid var(--border-light);
  padding: 24px 28px;
  border-radius: var(--radius);
}

.method-callout p {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text);
}

.method-callout strong {
  color: var(--white);
  font-weight: 500;
}


/* ── 4. Calibration ── */
.calibration-section {
  background: var(--surface);
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.cal-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 32px;
  border-radius: var(--radius);
}

.cal-h {
  margin-bottom: 1rem;
  color: var(--white);
  font-size: 1.15rem;
  font-weight: 500;
}

.cal-card p {
  font-size: 0.95rem;
  line-height: 1.7;
  margin: 0;
}


/* ── 5. Final CTA ── */
.cos-cta-section {
  background: var(--bg);
}

.cos-cta-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  gap: 40px;
  justify-content: space-between;
}

.cos-cta-text {
  flex: 1;
}

.cos-cta-text .section-tag {
  margin-bottom: 1rem;
}

.cos-cta-text h2 {
  margin-bottom: 0.85rem;
  font-size: clamp(1.6rem, 2.6vw, 2.2rem);
}

.cos-cta-text p {
  font-size: 1rem;
  line-height: 1.7;
  margin: 0;
  max-width: 560px;
}


/* ── 6. Media queries ── */
@media (max-width: 960px) {
  .calc-wrap {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .calc-results {
    position: static;
  }

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

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

  .cos-cta-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 36px;
    gap: 28px;
  }
}

@media (max-width: 600px) {
  .calc-options {
    grid-template-columns: 1fr;
  }

  .calc-results {
    padding: 28px 22px;
  }

  .calc-breakdown {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .calc-stat {
    border-left: none;
    border-top: 1px solid var(--border-light);
    padding-left: 0;
    padding-top: 14px;
  }

  .calc-stat:first-child {
    border-top: none;
    padding-top: 0;
  }

  .method-card,
  .cal-card {
    padding: 24px;
  }

  .calc-cta {
    flex-direction: column;
  }

  .calc-cta .btn {
    width: 100%;
  }
}