:root {
  --brand: #23B20D;
  --brand-dark: #143F17;
  --brand-light: #4CC722;
  --brand-tint: #f8fef5;
  --brand-tint-2: #dff7d4;
  --risk: #E11D48;
  --risk-tint: #FEF2F2;
  --ink: #0A0A0A;
  --ink-soft: #4b4b4b;
  --muted: #737373;
  --border: #e5e5e5;
  --bg: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  line-height: 1.5;
}

.wrap {
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.page-header {
  border-bottom: 1px solid var(--border);
  padding: 18px 0;
}
.page-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--brand-dark);
  letter-spacing: -0.02em;
}
.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  object-fit: cover;
}
.header-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}
.header-link:hover { color: var(--brand); }

/* Hero */
.hero {
  padding: 48px 0 24px;
  max-width: 720px;
}
.hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-dark);
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}
.hero p {
  color: var(--ink-soft);
  font-size: 1.05rem;
  margin: 0;
}

/* Currency selector */
.currency-row {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: flex-end;
  margin-bottom: 20px;
}
.currency-row label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.currency-row select {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--ink);
}

/* Calculator card */
.calculator-card {
  border-radius: 24px;
  border: 1px solid var(--border);
  background: var(--bg);
  box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  overflow: hidden;
  margin-bottom: 60px;
}

.step-wrapper.hidden { display: none; }

.step-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--brand-dark);
  color: #fff;
  padding: 16px 20px;
}
.step-title { font-weight: 600; }
.step-back, .step-close {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: #fff;
  position: relative;
}
.step-back::before {
  content: "←";
  font-size: 1.2rem;
}
.step-close::before {
  content: "✕";
  font-size: 1rem;
}
.step-back:disabled { opacity: 0.35; cursor: default; }

.step-body {
  display: flex;
  flex-wrap: wrap;
  padding: 28px;
  gap: 24px;
}
.step-main {
  flex: 1 1 420px;
}
.step-main h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--brand-dark);
  margin: 0 0 20px;
}
.step-info {
  flex: 1 1 280px;
  max-width: 340px;
  background: var(--brand-tint);
  border-radius: 16px;
  padding: 20px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}
.step-info .info-title {
  font-weight: 700;
  color: var(--brand-dark);
  margin: 0 0 10px;
}
.step-info p { margin: 0 0 10px; }
.step-info p:last-child { margin-bottom: 0; }

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}
@media (max-width: 640px) {
  .options-grid { grid-template-columns: 1fr; }
}

.option-btn {
  text-align: left;
  padding: 18px;
  border-radius: 16px;
  border: 2px solid var(--border);
  background: #fff;
  cursor: pointer;
  font-family: inherit;
  color: var(--ink);
  transition: border-color .15s, background .15s;
}
.option-btn:hover { border-color: var(--brand-light); }
.option-btn.active {
  border-color: var(--brand);
  background: var(--brand-tint-2);
}
.option-title {
  display: block;
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 6px;
}
.option-desc {
  display: block;
  font-size: 0.88rem;
  color: var(--muted);
}

.input-row {
  margin-bottom: 24px;
}
.input-row input {
  width: 100%;
  padding: 16px;
  font-size: 1.1rem;
  border-radius: 14px;
  border: 2px solid var(--border);
  font-family: inherit;
  color: var(--ink);
}
.input-row input:focus {
  outline: none;
  border-color: var(--brand);
}
.input-row label {
  display: block;
  margin-top: 8px;
  font-weight: 600;
  color: var(--ink-soft);
  font-size: 0.9rem;
}
.error-msg {
  display: block;
  color: var(--risk);
  font-weight: 600;
  font-size: 0.85rem;
  margin-top: 6px;
}

.btn-continue {
  padding: 14px 28px;
  border-radius: 14px;
  border: none;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-light) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  font-family: inherit;
}
.btn-continue:hover { filter: brightness(1.05); }

.step-footnote {
  padding: 0 28px 24px;
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
}

/* Result screens */
.result-wrapper { padding: 28px; }
.result-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.badge-success {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: 14px;
  background: #dfffdf99;
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.9rem;
}
.btn-edit {
  padding: 8px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--brand);
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.result-wrapper h3 {
  color: var(--brand-dark);
  font-size: 1.2rem;
  margin: 24px 0 4px;
}
.result-wrapper h3:first-of-type { margin-top: 0; }
.muted { color: var(--muted); font-size: 0.92rem; margin: 0 0 16px; }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}
@media (max-width: 780px) {
  .summary-grid { grid-template-columns: repeat(2, 1fr); }
}
.summary-box {
  position: relative;
  background: #F8FAFC;
  border-radius: 14px;
  padding: 14px;
}
.summary-label {
  display: block;
  text-transform: uppercase;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.03em;
}
.summary-value {
  display: block;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--brand-dark);
  margin-top: 4px;
}
.summary-tag {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--brand-dark);
  color: #fff;
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 10px;
}

.disclaimer {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 4px 0 8px;
}

.scenarios-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 16px 0 20px;
}
@media (max-width: 900px) {
  .scenarios-grid { grid-template-columns: 1fr; }
}

.scenario-card {
  border-radius: 16px;
  padding: 20px;
  display: flex;
  flex-direction: column;
}
.scenario-baseline {
  background: #fff;
  border: 1px solid var(--border);
}
.scenario-risk {
  background: var(--risk-tint);
  border: 1px solid rgba(225, 29, 72, 0.4);
}
.scenario-smart {
  background: var(--brand-tint-2);
  border: 1px solid rgba(20, 63, 23, 0.4);
}
.scenario-tag {
  display: inline-flex;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 12px;
  background: var(--brand-dark);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 12px;
}
.tag-risk { background: var(--risk); }
.tag-smart { background: var(--brand); }
.scenario-title {
  font-weight: 700;
  color: var(--brand-dark);
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.scenario-desc {
  color: var(--ink-soft);
  font-size: 0.88rem;
  margin: 0 0 14px;
}
.scenario-value {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--brand-dark);
  margin-bottom: 8px;
}
.value-risk { color: var(--risk); }
.value-smart { color: var(--brand); }
.scenario-foot {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin: auto 0 0;
}

.alert-box {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px 20px;
  font-size: 1rem;
  line-height: 1.6;
}
.text-risk { color: var(--risk); }

/* Footer */
.page-footer {
  border-top: 1px solid var(--border);
  padding: 24px 0 40px;
}
.page-footer p {
  color: var(--muted);
  font-size: 0.82rem;
  margin: 0;
}