.econnect-calculator {
  --ec-bg: #07131f;
  --ec-panel: #10283b;
  --ec-line: #2b4a61;
  --ec-text: #f4f8fb;
  --ec-muted: #abc0cf;
  --ec-cyan: #27d5e7;
  --ec-amber: #ffbf3f;
  --ec-good: #51dfa7;
  --ec-bad: #ff746d;
  max-width: 1160px;
  margin: 32px auto;
  padding: clamp(18px, 4vw, 44px);
  border-radius: 26px;
  background:
    radial-gradient(circle at 88% 4%, rgba(39, 213, 231, .13), transparent 25rem),
    var(--ec-bg);
  color: var(--ec-text);
  font: 16px/1.55 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  box-sizing: border-box;
}
.econnect-calculator *,
.econnect-calculator *::before,
.econnect-calculator *::after { box-sizing: border-box; }
.econnect-calculator button,
.econnect-calculator input, .econnect-calculator select { font: inherit; }
.econnect-calculator button { cursor: pointer; }
.econnect-calculator h2,
.econnect-calculator h3 { margin: 0; color: var(--ec-text); line-height: 1.12; letter-spacing: -.03em; }
.econnect-calculator h2 { font-size: clamp(2rem, 5vw, 4rem); max-width: 780px; }
.econnect-calculator h3 { font-size: clamp(1.45rem, 3vw, 2.2rem); }
.ec-intro { max-width: 810px; }
.ec-intro > p:last-child,
.ec-upload-intro p,
.ec-method p { color: var(--ec-muted); }
.ec-eyebrow { margin: 0 0 8px; color: var(--ec-cyan); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.ec-tabs { display: inline-flex; gap: 5px; margin: 30px 0 14px; padding: 5px; border: 1px solid var(--ec-line); border-radius: 14px; background: rgba(255, 255, 255, .06); }
.ec-tab { border: 0; border-radius: 10px; padding: 12px 18px; color: var(--ec-muted); background: transparent; font-weight: 750; }
.ec-tab.is-active { color: #03141b; background: var(--ec-cyan); }
.ec-panel,
.ec-results,
.ec-method { padding: clamp(18px, 3vw, 28px); border: 1px solid var(--ec-line); border-radius: 22px; background: linear-gradient(145deg, rgba(18, 42, 63, .98), rgba(11, 29, 44, .98)); }
.ec-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.ec-form-grid fieldset { min-width: 0; margin: 0; padding: 18px; border: 1px solid var(--ec-line); border-radius: 16px; background: rgba(3, 14, 23, .28); }
.ec-form-grid fieldset.ec-wide { grid-column: 1 / -1; }
.ec-form-grid legend { padding: 0 7px; color: var(--ec-cyan); font-weight: 800; }
.econnect-calculator label { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 12px 0; color: #dce7ef; }
.econnect-calculator label span { display: flex; align-items: center; justify-content: flex-end; gap: 7px; color: var(--ec-muted); white-space: nowrap; }
.econnect-calculator input[type="number"], .econnect-calculator select { min-height: 42px; padding: 8px 10px; border: 1px solid #3a5d76; border-radius: 9px; background: #071725; color: var(--ec-text); }
.econnect-calculator input[type="number"] { width: 110px; text-align: right; }
.econnect-calculator select { max-width: 230px; }
.econnect-calculator input:focus, .econnect-calculator select:focus { outline: 2px solid var(--ec-cyan); outline-offset: 2px; }
.ec-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.ec-note,
.ec-result-note { margin: 10px 0 0; color: var(--ec-muted); font-size: .9rem; }
.ec-primary,
.ec-secondary { min-height: 48px; padding: 12px 20px; border-radius: 12px; font-weight: 800; }
.ec-primary { margin-top: 20px; border: 0; background: var(--ec-cyan); color: #03141b; }
.ec-primary:hover { background: #69e6f1; }
.ec-secondary { border: 1px solid #138b99; background: transparent; color: var(--ec-cyan); }
.ec-auto-note { display: inline-block; margin-left: 12px; color: var(--ec-muted); font-size: .86rem; }
.ec-upload-intro { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-bottom: 20px; }
.ec-dropzone { display: grid !important; place-items: center; gap: 6px; min-height: 150px; padding: 22px; border: 1.5px dashed #4b7898; border-radius: 17px; background: rgba(3, 14, 23, .32); text-align: center; }
.ec-dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.ec-dropzone span { white-space: normal !important; justify-content: center !important; font-size: .86rem; }
.ec-csv-status { min-height: 26px; margin: 7px 0; color: var(--ec-muted); font-size: .9rem; }
.ec-compact { margin-top: 10px; }
.ec-results { margin-top: 20px; }
.ec-result-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.ec-badge { padding: 6px 10px; border: 1px solid var(--ec-line); border-radius: 99px; color: var(--ec-muted); font-size: .78rem; font-weight: 750; }
.ec-cost-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 22px; }
.ec-cost-cards article { min-height: 165px; padding: 20px; border: 1px solid var(--ec-line); border-radius: 16px; background: rgba(3, 14, 23, .32); }
.ec-cost-cards article > span,
.ec-cost-cards article > small { display: block; color: var(--ec-muted); }
.ec-cost-cards article > strong { display: block; margin-top: 15px; color: var(--ec-text); font-size: clamp(1.8rem, 4vw, 2.7rem); letter-spacing: -.04em; }
.ec-dynamic-card { border-color: rgba(39, 213, 231, .5) !important; }
.ec-cost-bar { height: 7px; margin-top: 18px; overflow: hidden; border-radius: 99px; background: #07131f; }
.ec-cost-bar i { display: block; width: 0; height: 100%; border-radius: inherit; transition: width .35s ease; }
#ec-fixed-bar { background: var(--ec-amber); }
#ec-dynamic-bar { background: var(--ec-cyan); }
.ec-positive strong { color: var(--ec-good) !important; }
.ec-negative strong { color: var(--ec-bad) !important; }
.ec-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 18px; overflow: hidden; border: 1px solid var(--ec-line); border-radius: 14px; background: var(--ec-line); }
.ec-metrics div { padding: 15px; background: #0b1d2c; }
.ec-metrics span,
.ec-metrics strong { display: block; }
.ec-metrics span { color: var(--ec-muted); font-size: .8rem; }
.ec-metrics strong { margin-top: 3px; color: var(--ec-text); font-size: 1.05rem; }
.ec-method { margin-top: 20px; }
.ec-method p:last-child { margin-bottom: 0; }
.econnect-calculator [hidden] { display: none !important; }

@media (max-width: 780px) {
  .ec-form-grid,
  .ec-two-col,
  .ec-cost-cards { grid-template-columns: 1fr; }
  .ec-form-grid fieldset.ec-wide { grid-column: auto; }
  .ec-metrics { grid-template-columns: 1fr 1fr; }
  .ec-upload-intro { align-items: flex-start; flex-direction: column; }
  .ec-tabs { display: grid; grid-template-columns: 1fr 1fr; width: 100%; }
  .ec-tab { padding-inline: 10px; }
  .econnect-calculator label { align-items: flex-start; flex-direction: column; gap: 6px; }
  .econnect-calculator label span { width: 100%; justify-content: space-between; white-space: normal; }
  .ec-auto-note { display: block; margin: 9px 0 0; }
}
@media (max-width: 440px) {
  .econnect-calculator { margin: 14px auto; padding: 14px; border-radius: 18px; }
  .ec-panel, .ec-results, .ec-method { padding: 16px; border-radius: 17px; }
  .ec-metrics { grid-template-columns: 1fr; }
}

.ec-compare { margin-top: 24px; padding-top: 22px; border-top: 1px solid var(--ec-line); }
.ec-table-wrap { overflow-x: auto; margin-top: 10px; }
.ec-compare table { width: 100%; border-collapse: collapse; min-width: 620px; }
.ec-compare th, .ec-compare td { padding: 11px 12px; border-bottom: 1px solid var(--ec-line); text-align: right; }
.ec-compare th:first-child, .ec-compare td:first-child { text-align: left; }
.ec-compare th { color: var(--ec-cyan); font-size: .82rem; }
.ec-compare td { color: var(--ec-text); }