/* ─────────────────────────────────────────────────────────────
   ROI Calculator — AIOS / Nova Solutions
   Reusable component, configurable per page via data-config attr.
   Brand: teal/blue gradient (#2dd4bf, #60a5fa)
   ───────────────────────────────────────────────────────────── */

.roi-calc {
  --calc-fg: var(--text, #e7eef7);
  --calc-fg2: var(--text2, #a4b1c2);
  --calc-muted: var(--muted, #6b7a90);
  --calc-bg: rgba(2, 6, 10, .5);
  --calc-bg-out: linear-gradient(135deg, rgba(13,148,136,.08), rgba(8,145,178,.05));
  --calc-border: var(--border, rgba(255,255,255,.08));
  --calc-accent: #2dd4bf;
  --calc-accent2: #60a5fa;
  --calc-accent-glow: rgba(45, 212, 191, .3);

  font-family: inherit;
  color: var(--calc-fg);
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 22px;
  background: rgba(2, 6, 10, .35);
  border: 1px solid var(--calc-border);
  border-radius: 18px;
}

.roi-calc__head { text-align: center; margin-bottom: 22px; }
.roi-calc__eyebrow {
  font-size: .72rem; font-weight: 700; letter-spacing: .14em;
  text-transform: uppercase; color: var(--calc-accent);
  display: block; margin-bottom: 8px;
}
.roi-calc__title {
  font-size: clamp(1.4rem, 3.2vw, 1.9rem);
  font-weight: 800; letter-spacing: -.02em; line-height: 1.15;
  margin: 0 0 8px;
}
.roi-calc__sub {
  font-size: .92rem; color: var(--calc-fg2);
  max-width: 580px; margin: 0 auto; line-height: 1.5;
}

/* Currency toggle */
.roi-calc__ccy {
  display: inline-flex; gap: 4px;
  background: rgba(2, 6, 10, .6);
  border: 1px solid var(--calc-border);
  border-radius: 999px;
  padding: 4px;
  margin: 14px auto 0;
  max-width: max-content;
}
.roi-calc__ccy-btn {
  background: transparent; border: none; color: var(--calc-fg2);
  font-family: inherit; font-size: .8rem; font-weight: 600;
  padding: 6px 14px; border-radius: 999px; cursor: pointer;
  transition: all .15s;
}
.roi-calc__ccy-btn.is-active {
  background: linear-gradient(135deg, var(--calc-accent), #14b8a6);
  color: #02060a; box-shadow: 0 4px 12px var(--calc-accent-glow);
}
.roi-calc__ccy-wrap { text-align: center; margin-bottom: 18px; }

/* 2-column layout */
.roi-calc__grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
  margin-top: 8px;
  align-items: stretch;
}
@media (max-width: 860px) {
  .roi-calc__grid { grid-template-columns: 1fr; }
}

/* INPUT panel */
.roi-calc__inputs {
  background: var(--calc-bg);
  border: 1px solid var(--calc-border);
  border-radius: 14px;
  padding: 22px 20px;
}
.roi-calc__inputs h4 {
  font-size: .76rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--calc-fg2);
  margin: 0 0 16px;
}

.roi-calc__field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.roi-calc__field:last-child { margin-bottom: 0; }
.roi-calc__field-row {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.roi-calc__field-label {
  font-size: .85rem; font-weight: 600; color: var(--calc-fg); line-height: 1.3;
}
.roi-calc__field-val {
  font-size: .92rem; font-weight: 700; color: var(--calc-accent);
  font-variant-numeric: tabular-nums;
  background: rgba(13, 148, 136, .1);
  border: 1px solid rgba(45, 212, 191, .3);
  padding: 4px 10px; border-radius: 8px;
  min-width: 80px; text-align: center; flex-shrink: 0;
}
.roi-calc__slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px;
  background: linear-gradient(to right,
    var(--calc-accent) var(--fill, 50%),
    rgba(255, 255, 255, .08) var(--fill, 50%));
  border-radius: 999px;
  outline: none; cursor: pointer;
  transition: background .15s;
}
.roi-calc__slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, #14b8a6, #2dd4bf);
  border: 2px solid #02060a;
  box-shadow: 0 0 0 2px rgba(45, 212, 191, .3), 0 4px 12px rgba(13, 148, 136, .4);
  cursor: grab;
  transition: transform .15s;
}
.roi-calc__slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.roi-calc__slider::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.25); }
.roi-calc__slider::-moz-range-thumb {
  width: 20px; height: 20px; border-radius: 50%;
  background: linear-gradient(135deg, #14b8a6, #2dd4bf);
  border: 2px solid #02060a;
  box-shadow: 0 0 0 2px rgba(45, 212, 191, .3), 0 4px 12px rgba(13, 148, 136, .4);
  cursor: grab;
}
.roi-calc__hint {
  font-size: .7rem; color: var(--calc-muted);
  display: flex; justify-content: space-between;
  font-variant-numeric: tabular-nums;
}

/* OUTPUT panel */
.roi-calc__outputs {
  background: var(--calc-bg-out);
  border: 1px solid rgba(45, 212, 191, .3);
  border-radius: 14px;
  padding: 22px 20px;
  display: flex; flex-direction: column; gap: 14px;
}
.roi-calc__outputs h4 {
  font-size: .76rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--calc-fg2);
  margin: 0;
}

.roi-calc__hero {
  text-align: center;
  padding: 16px 0 20px;
  border-bottom: 1px dashed rgba(45, 212, 191, .2);
}
.roi-calc__hero-label {
  font-size: .7rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--calc-fg2);
  margin-bottom: 8px;
}
.roi-calc__hero-val {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 900; line-height: 1; letter-spacing: -.03em;
  background: linear-gradient(135deg, var(--calc-accent), var(--calc-accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  transition: transform .25s cubic-bezier(.34, 1.56, .64, 1);
  font-variant-numeric: tabular-nums;
}
.roi-calc__hero-val.bump { transform: scale(1.06); }
.roi-calc__hero-sub { font-size: .78rem; color: var(--calc-fg2); margin-top: 6px; }

.roi-calc__sub-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px;
}
.roi-calc__sub {
  background: rgba(2, 6, 10, .4);
  border: 1px solid var(--calc-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex; flex-direction: column; gap: 4px;
}
.roi-calc__sub-label {
  font-size: .66rem; color: var(--calc-fg2);
  text-transform: uppercase; letter-spacing: .06em; font-weight: 600;
}
.roi-calc__sub-val {
  font-size: 1.15rem; font-weight: 800; color: var(--calc-fg);
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.roi-calc__sub-val.green { color: #22c55e; }

.roi-calc__footnote {
  font-size: .72rem; color: var(--calc-muted); text-align: center;
  padding-top: 6px; line-height: 1.5;
}

.roi-calc__cta {
  display: inline-block; margin: 22px auto 0;
  padding: 14px 28px;
  background: linear-gradient(135deg, var(--calc-accent), #14b8a6);
  color: #02060a; font-weight: 700; font-size: .95rem;
  text-decoration: none; border-radius: 999px;
  box-shadow: 0 8px 24px rgba(13, 148, 136, .25);
  transition: transform .15s, box-shadow .15s;
}
.roi-calc__cta-wrap { text-align: center; }
.roi-calc__cta:hover { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(13, 148, 136, .35); }
.roi-calc__cta-note {
  display: block; font-size: .78rem; color: var(--calc-fg2);
  margin-top: 12px; max-width: 520px;
  margin-left: auto; margin-right: auto; line-height: 1.55;
}

@media (max-width: 480px) {
  .roi-calc { padding: 24px 16px; }
  .roi-calc__inputs, .roi-calc__outputs { padding: 18px 14px; }
  .roi-calc__sub-grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .roi-calc__hero-val { transition: none; }
  .roi-calc__slider::-webkit-slider-thumb { transition: none; }
}