:root {
  --ec-orange: #ff6b35;
  --ec-orange-hover: #ff7a3d;
  --ec-blue-primary: #1e3a8a;
  --ec-blue-secondary: #1e40af;
  --ec-dark: #0f1f38;
  --ec-gray: #f9fafb;
  --ec-border: #dddddd;
  --ec-text: #1f2937;
  --ec-muted: #666666;
  --ec-red: #b42318;
  --ec-radius: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #ffffff;
  color: var(--ec-text);
}

.ec-calculator-wrapper {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 18px;
}

.ec-header {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 28px;
  padding: 28px;
  background: var(--ec-blue-primary);
  color: #ffffff;
  border-radius: var(--ec-radius);
  box-shadow: 0 18px 40px rgba(0,0,0,0.14);
}

.ec-header h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.ec-header p {
  margin: 0;
  font-size: 16px;
  line-height: 1.55;
  color: #f4f4f4;
}

.ec-badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 8px 12px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  font-weight: 700;
  color: #ffffff;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.ec-header-card {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 22px;
  border-radius: 14px;
  backdrop-filter: blur(4px);
}

.ec-header-card strong {
  display: block;
  font-size: 34px;
  margin-bottom: 4px;
}

.ec-main-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: start;
}

.ec-card {
  background: #ffffff;
  border: 1px solid var(--ec-border);
  border-radius: var(--ec-radius);
  padding: 24px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.06);
}

.ec-card h2 { margin: 0 0 18px; font-size: 23px; letter-spacing: -0.02em; }
.ec-card h3 { margin: 24px 0 12px; font-size: 17px; color: var(--ec-dark); }
.ec-field { margin-bottom: 16px; }
.ec-field label { display: block; font-weight: 700; margin-bottom: 7px; font-size: 14px; }
.ec-field small, .block-help { display: block; margin-top: 8px; color: var(--ec-muted); line-height: 1.35; }
.required { color: var(--ec-red); }

select,
input[type="number"],
input[type="text"],
input[type="email"],
input[type="tel"] {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid #cfcfcf;
  border-radius: 10px;
  font-size: 15px;
  background: #fff;
  color: var(--ec-text);
}

select:focus,
input:focus {
  outline: 3px solid rgba(255, 107, 53, 0.22);
  border-color: var(--ec-orange);
}

.ec-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.ec-checkbox-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 8px; }

.ec-check {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 11px;
  border: 1px solid var(--ec-border);
  border-radius: 10px;
  background: #fafafa;
  font-size: 14px;
  line-height: 1.3;
  cursor: pointer;
}

.ec-check input { margin-top: 1px; accent-color: var(--ec-orange); }

.ec-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 22px; }

.ec-form-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--ec-border);
}
.ec-form-topbar h2 { margin: 0; }
.ec-btn-small { padding: 10px 14px; font-size: 13px; border-radius: 10px; white-space: nowrap; }

.ec-btn {
  border: none;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.2s ease;
}
.ec-btn-primary { background: var(--ec-orange); color: #111827; }
.ec-btn-primary:hover { background: var(--ec-orange-hover); transform: translateY(-1px); }
.ec-btn-secondary { background: #eeeeee; color: #222222; }
.ec-btn-secondary:hover { background: #e0e0e0; }

.ec-result-card {
  position: sticky;
  top: 18px;
  background: #111111;
  color: #ffffff;
  border-radius: var(--ec-radius);
  padding: 24px;
  box-shadow: 0 18px 40px rgba(0,0,0,0.18);
}
.ec-result-card h2 { color: #ffffff; margin-bottom: 12px; }
.result-intro { margin: 0; color: #dddddd; line-height: 1.45; }

.ec-range {
  padding: 20px;
  background: #ffffff;
  color: #111111;
  border-radius: 14px;
  margin: 16px 0;
  border-left: 8px solid var(--ec-orange);
}
.ec-range .label { display: block; font-size: 13px; color: #666666; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 6px; }
.ec-range .amount { font-size: clamp(28px, 4vw, 38px); font-weight: 900; letter-spacing: -0.04em; }

.ec-result-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  padding: 11px 0;
  color: #eeeeee;
  font-size: 14px;
}
.ec-result-row strong { color: #ffffff; text-align: right; }

.ec-quality-box {
  margin-top: 16px;
  padding: 14px;
  border-radius: 12px;
  background: rgba(255, 107, 53, 0.14);
  border: 1px solid rgba(255, 107, 53, 0.4);
  line-height: 1.45;
  font-size: 14px;
}

.ec-warning {
  margin-top: 16px;
  padding: 14px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-left: 5px solid var(--ec-orange);
  border-radius: 12px;
  color: #7c2d12;
  line-height: 1.45;
  font-size: 14px;
}

.ec-note {
  margin-top: 18px;
  padding: 16px;
  background: var(--ec-gray);
  border-radius: 12px;
  line-height: 1.45;
  font-size: 14px;
  color: #444444;
}

.ec-lead-box {
  margin-top: 24px;
  background: #fafafa;
  border: 1px solid var(--ec-border);
  border-radius: var(--ec-radius);
  padding: 20px;
}
.form-block-top { margin-top: 0; margin-bottom: 24px; }
.ec-lead-box h3 { margin-top: 0; }

.ec-mini-table { width: 100%; border-collapse: collapse; margin-top: 12px; font-size: 14px; }
.ec-mini-table th,
.ec-mini-table td { text-align: left; border-bottom: 1px solid #e5e5e5; padding: 10px 8px; }
.ec-mini-table th { background: #f5f5f5; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; color: #555555; }

.ec-footer-note { margin-top: 24px; text-align: center; font-size: 12px; color: #777777; line-height: 1.45; }

@media print {
  body { background: #ffffff; }
  .ec-calculator-wrapper { max-width: none; padding: 0; }
  .ec-header, .ec-card, .ec-result-card { box-shadow: none; }
  .ec-main-grid { grid-template-columns: 1fr; }
  .ec-result-card { position: static; break-inside: avoid; }
  .ec-actions, .ec-form-topbar button { display: none !important; }
}

@media (max-width: 900px) {
  .ec-header, .ec-main-grid, .ec-two-col { grid-template-columns: 1fr; }
  .ec-result-card { position: static; }
}

@media (max-width: 620px) {
  .ec-checkbox-grid, .ec-actions { grid-template-columns: 1fr; }
  .ec-card, .ec-header, .ec-result-card { padding: 18px; }
}