:root {
     
   /* Layout */
  --max-w:       1360px;
  --gutter:      clamp(16px, 4vw, 32px);

  /* Radii */
  --r:           12px;
  --r-lg:        18px;
  --r-xl:        24px;
  --r-full:      9999px;

  /* Motion */
  --ease:        cubic-bezier(.4, 0, .2, 1);
  --t:           260ms;
  --t-slow:      500ms; 
  
  /* Typography — min 16px everywhere */
  --font:        'Quicksand', system-ui, sans-serif;
  --fs-sm:       16px;
  --fs-base:     17px;
  --fs-md:       18px;
  --fs-lg:       20px;
  --fs-xl:       24px;
  --fs-2xl:      30px;
  --fs-3xl:      clamp(28px, 3.5vw, 58px);
  --fs-hero:     clamp(36px, 5vw, 62px);
  
  
     
  /* Brand */
  --orange:      #fca742;
  --dark-orange:  #ef8b00;
  --grad:        linear-gradient(135deg, #fca742 0%, #ef8b00 100%);
  --grad-rev:    linear-gradient(135deg, #ef8b00 0%, #fca742 100%);

  /* Surfaces */
  --surface:     #F4F6FE;
  --white:       #FFFFFF;

  /* Text */
  --dark:        #1A1C3A;
  --text:        #2C2E50;
  --text-2:      #4A4C6A;
  --muted:       #6E7190;

  /* Utilities */
  --border:      #dddddd;

  
}
 
 
 
/* ── Calculator shell ────────────────────────────────────── */
.apr-wrap {
  max-width: var(--max-w);
  margin: 50px auto 0;
  padding: 0 var(--gutter) 0px;
  position: relative;
  z-index: 2;
}

.apr-card {
  background: var(--white);
  border-radius: var(--r-xl);
  box-shadow: 0 24px 60px rgba(13,15,34,.16), 0 4px 16px rgba(0,0,0,.06);
  overflow: hidden;
}

.apr-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
}

/* ── Left: inputs ────────────────────────────────────────── */
.apr-inputs {
  padding: 48px 46px;
}
.apr-inputs-head { margin-bottom: 34px; }
.apr-inputs-head h2 {
  font-size: var(--fs-xl);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 6px;
}
.apr-inputs-head p {
  font-size: var(--fs-sm);
  color: var(--muted);
}

.apr-field { margin-bottom: 30px; }
.apr-field:last-child { margin-bottom: 0; }

.apr-field-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 12px;
}
.apr-field-top label {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--text);
}
.apr-field-val {
  font-size: var(--fs-lg);
  font-weight: 800;
  color: var(--dark-orange);
  white-space: nowrap;
}

/* Range slider — themed */
.apr-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: var(--r-full);
  background: var(--border);
  outline: none;
  cursor: pointer;
  --fill: 0%;
}
.apr-range::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--dark-orange) 0%, var(--orange) var(--fill), var(--border) var(--fill), var(--border) 100%);
}
.apr-range::-moz-range-track {
  height: 6px;
  border-radius: var(--r-full);
  background: var(--border);
}
.apr-range::-moz-range-progress {
  height: 6px;
  border-radius: var(--r-full);
  background: var(--grad);
}
.apr-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px; height: 22px;
  margin-top: -8px;
  border-radius: 50%;
  background: var(--white);
  border: 4px solid var(--dark-orange);
  box-shadow: 0 2px 10px rgba(97,98,219,.45);
  cursor: pointer;
  transition: transform var(--t) var(--ease);
}
.apr-range::-webkit-slider-thumb:hover { transform: scale(1.12); }
.apr-range::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--white);
  border: 4px solid var(--dark-orange);
  box-shadow: 0 2px 10px rgba(97,98,219,.45);
  cursor: pointer;
}

.apr-field-minmax {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: var(--fs-sm);
  color: var(--muted);
  font-weight: 600;
}

.apr-note {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  font-size: var(--fs-sm);
  color: var(--text-2);
}
.apr-note i { color: var(--dark-orange); font-size: 15px; }
.apr-note b { color: var(--dark-range); }

/* ── Right: results panel ────────────────────────────────── */
.apr-results {
  background: linear-gradient(180deg, #F4F6FE 0%, #EEF0FC 100%);
  border-left: 1px solid var(--border);
  padding: 48px 42px;
  display: flex;
  flex-direction: column;
}
.apr-results-head {
  font-size: var(--fs-lg);
  font-weight: 800;
  color: var(--dark-orange);
  margin-bottom: 22px;
}

.apr-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--fs-base);
}
.apr-row span:first-child { color: var(--text-2); font-weight: 600; }
.apr-row span:last-child { color: var(--dark-orange); font-weight: 700; }
.apr-row.apr-row--sub span:first-child { padding-left: 18px; color: var(--muted); font-weight: 500; font-size: var(--fs-sm); }
.apr-row.apr-row--sub span:last-child { color: var(--text-2); font-weight: 600; font-size: var(--fs-sm); }
.apr-row.apr-row--total span { color: var(--dark-orange); font-weight: 800; }
.apr-row.apr-row--total { border-bottom: none; padding-top: 16px; }

.apr-hero-result {
  margin-top: 22px;
  padding: 26px 24px;
  border-radius: var(--r-lg);
  background: var(--grad);
  color: #fff;
  box-shadow: 0 14px 34px rgba(97,98,219,.35);
}
.apr-hero-result .apr-hr-label {
  display: flex; align-items: center; gap: 8px;
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  opacity: .9;
  margin-bottom: 8px;
}
.apr-hero-result .apr-hr-value {
  font-size: 44px;
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1;
}
.apr-hero-result .apr-hr-value sup { font-size: 20px; font-weight: 700; }

.apr-disclaimer {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  padding: 14px 16px;
  background: rgba(247, 183, 51, .12);
  border: 1px solid rgba(247, 183, 51, .35);
  border-radius: var(--r);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-2);
}
.apr-disclaimer i { color: #C88A00; font-size: 15px; margin-top: 2px; flex-shrink: 0; }
.apr-disclaimer b { color: var(--dark-orange); }

.apr-cta {
  margin-top: 22px;
  width: 100%;
  text-align: center;
  padding: 15px 28px;
  background: #fca742;
  color: var(--white);
}

/* ── Formula strip below the calculator ─────────────────── */
.apr-formula {
  margin-top: 34px;
  background: var(--white);
  border-radius: var(--r-lg);
  box-shadow: 0 8px 32px rgba(97,98,219,.10), 0 2px 8px rgba(0,0,0,.05);
  padding: 34px 40px;
}
.apr-formula h3 {
  font-size: var(--fs-lg);
  font-weight: 800;
  color: var(--dark-orange);
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.apr-formula h3 i { color: var(--dark-orange); }
.apr-formula-eq {
  font-family: 'Courier New', monospace;
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--dark-orange);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 16px 20px;
  overflow-x: auto;
  white-space: nowrap;
  margin-bottom: 16px;
}
.apr-formula p {
  font-size: var(--fs-sm);
  color: var(--muted);
  line-height: 1.75;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 980px) {
  .apr-grid { grid-template-columns: 100%; }
  .apr-results { border-left: none; border-top: 1px solid var(--border); }
  .apr-inputs, .apr-results { padding: 38px 28px; }
}

@media (max-width: 576px) {
  .apr-banner { padding: 48px 0 76px; }
  .apr-inputs, .apr-results { padding: 30px 20px; }
  .apr-hero-result .apr-hr-value { font-size: 36px; }
  .apr-formula { padding: 26px 22px; }
  .apr-formula-eq { font-size: 14px; white-space: normal; }
}