/* ── CALC HERO ──────────────────────────── */
.calc-hero {
  position: relative;
  padding: 140px 0 60px;
  overflow: hidden;
}
.calc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, black, transparent 70%);
}
.calc-hero::after {
  content: "";
  position: absolute;
  top: -80px;
  left: 50%;
  width: 900px;
  height: 500px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse 50% 50% at 50% 50%, var(--accent-glow), transparent 70%);
  filter: blur(60px);
  z-index: 0;
  opacity: .5;
  pointer-events: none;
}
.calc-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}
.calc-hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 28px;
  font-family: 'Geist Mono', monospace;
  letter-spacing: .02em;
}
.calc-hero__pill .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--accent-glow); }
  50% { opacity: .7; box-shadow: 0 0 0 4px transparent; }
}
.calc-hero h1 {
  font-size: clamp(36px, 5.5vw, 72px);
  font-weight: 600;
  letter-spacing: -.045em;
  line-height: .98;
  text-wrap: balance;
  margin-bottom: 20px;
}
.calc-hero h1 .accent { color: var(--accent); }
.calc-hero__sub {
  font-size: clamp(15px, 1.4vw, 18px);
  color: var(--text-2);
  line-height: 1.55;
  max-width: 560px;
}

/* ── LAYOUT ──────────────────────────────── */
.calc-section { padding: 60px 0 100px; }
.calc-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 32px;
  align-items: start;
}
@media (max-width: 900px) {
  .calc-layout { grid-template-columns: 1fr; }
  .calc-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
}
@media (max-width: 600px) {
  .calc-sidebar { grid-template-columns: 1fr; }
}

/* ── CALC BOX ────────────────────────────── */
.calc-box {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 20px;
  padding: 48px;
  position: relative;
  overflow: hidden;
}
@media (max-width: 600px) {
  .calc-box { padding: 28px 20px; border-radius: 14px; }
}

/* ── STEPS ───────────────────────────────── */
.calc-step {
  display: none;
  animation: step-in .35s var(--ease) forwards;
}
.calc-step.active { display: block; }
.calc-step.leaving { animation: step-out .35s var(--ease) forwards; }

@keyframes step-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes step-out {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-20px); }
}

.calc-step__num {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.calc-step h2 {
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1.2;
  margin-bottom: 10px;
}
.calc-step__hint {
  font-size: 13px;
  color: var(--text-soft);
  line-height: 1.5;
  margin-bottom: 32px;
}

/* ── OPTIONS ─────────────────────────────── */
.calc-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
@media (max-width: 500px) {
  .calc-options { grid-template-columns: 1fr; }
}
.calc-opt {
  padding: 16px 18px;
  border-radius: 10px;
  border: 1.5px solid var(--border-2);
  background: var(--surface-2);
  color: var(--text);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -.01em;
  text-align: left;
  cursor: pointer;
  transition: border-color .18s, background .18s, transform .2s var(--ease-spring), color .18s;
  line-height: 1.3;
}
.calc-opt:hover {
  border-color: var(--accent);
  background: var(--accent-fade);
  color: var(--accent);
  transform: translateY(-2px);
}
.calc-opt.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
}

/* ── PROGRESS ────────────────────────────── */
.calc-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--border);
}
.calc-progress__bar {
  height: 100%;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
  transition: width .4s var(--ease);
}

/* ── RESULT ──────────────────────────────── */
.calc-result {
  display: none;
}
.calc-result.visible {
  display: block;
  animation: step-in .4s var(--ease) forwards;
}
.calc-result__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  flex-wrap: wrap;
  gap: 8px;
}
.calc-result__label {
  font-family: 'Geist Mono', monospace;
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-soft);
}
.calc-result__tag {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 100px;
  background: var(--surface-3);
  color: var(--text-soft);
  font-family: 'Geist Mono', monospace;
  letter-spacing: .02em;
}
.calc-result__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}
@media (max-width: 500px) {
  .calc-result__grid { grid-template-columns: 1fr; }
}
.calc-metric {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}
.calc-metric--wide {
  grid-column: 1 / -1;
  background: color-mix(in oklab, var(--accent) 8%, var(--surface-2));
  border-color: color-mix(in oklab, var(--accent) 30%, var(--border));
}
.calc-metric__val {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -.04em;
  color: var(--text);
  line-height: 1;
  margin-bottom: 6px;
}
.calc-metric--wide .calc-metric__val {
  color: var(--accent);
}
.calc-metric__lbl {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-family: 'Geist Mono', monospace;
}
.calc-metric__sub {
  font-size: 12px;
  color: var(--text-soft);
  line-height: 1.4;
}
.calc-result__insight {
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  padding: 16px 18px;
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.55;
  margin-bottom: 28px;
}
.calc-result__insight strong { color: var(--text); }
.calc-result__cta {
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.calc-result__cta p {
  font-size: 14px;
  color: var(--text-2);
  margin-bottom: 16px;
  line-height: 1.5;
}
.calc-result__cta p strong { color: var(--text); }
.calc-result__cta .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 13px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -.005em;
  transition: transform .2s var(--ease-spring), box-shadow .25s;
  box-shadow: 0 0 0 0 var(--accent-glow);
  margin-right: 12px;
  margin-bottom: 12px;
}
.calc-result__cta .btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px var(--accent-glow);
}
.calc-result__cta .btn-accent svg { width: 13px; height: 13px; }
.calc-reset {
  font-size: 13px;
  color: var(--text-soft);
  padding: 8px 0;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  transition: color .15s;
  background: none;
  border: none;
  display: inline-block;
  vertical-align: middle;
}
.calc-reset:hover { color: var(--text); }

/* ── SIDEBAR ─────────────────────────────── */
.calc-sidebar { display: flex; flex-direction: column; gap: 16px; }
.calc-aside-card {
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: 14px;
  padding: 22px;
}
.calc-aside-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  color: var(--accent);
}
.calc-aside-icon svg { width: 20px; height: 20px; }
.calc-aside-icon--green { background: rgba(34,197,94,.12); color: #22c55e; }
.calc-aside-icon--orange { background: rgba(251,146,60,.12); color: #fb923c; }
.calc-aside-card h3 {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.02em;
  margin-bottom: 10px;
}
.calc-aside-card p {
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.55;
}
.calc-aside-card p strong { color: var(--text); }
.calc-aside-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.calc-aside-list li {
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 8px;
  line-height: 1.4;
}
.calc-aside-list li::before {
  content: "✓";
  color: #22c55e;
  font-weight: 600;
  flex-shrink: 0;
  font-size: 12px;
}
.calc-aside-tag {
  display: inline-block;
  margin-top: 10px;
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 100px;
  background: var(--surface-3);
  color: var(--text-soft);
  font-family: 'Geist Mono', monospace;
  letter-spacing: .02em;
}

/* ── BOTTOM CTA ──────────────────────────── */
.calc-bottom-cta {
  padding: 80px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-2);
}
.calc-bottom-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.calc-bottom-cta__inner h2 {
  font-size: clamp(22px, 2.5vw, 34px);
  font-weight: 600;
  letter-spacing: -.03em;
  margin-bottom: 8px;
}
.calc-bottom-cta__inner p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.5;
  max-width: 500px;
}
.calc-bottom-cta__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
}
@media (max-width: 600px) {
  .calc-hero { padding: 110px 0 40px; }
  .calc-hero h1 { font-size: clamp(30px, 9vw, 48px); letter-spacing: -.03em; }
  .calc-section { padding: 32px 0 64px; }
  .calc-bottom-cta { padding: 56px 0; }
  .calc-bottom-cta__inner { flex-direction: column; align-items: flex-start; gap: 24px; }
  .calc-bottom-cta__actions { width: 100%; }
  .calc-bottom-cta__actions .btn-accent,
  .calc-bottom-cta__actions .btn-ghost { width: 100%; justify-content: center; }
}
.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -.005em;
  transition: transform .2s var(--ease-spring), box-shadow .25s;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-accent:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px var(--accent-glow);
}
.btn-accent svg { width: 13px; height: 13px; transition: transform .25s var(--ease); }
.btn-accent:hover svg { transform: translate(2px, -2px); }