:root {
  color-scheme: dark;
  --ink: #f7fbff;
  --muted: #9fb1c6;
  --bg: #07111f;
  --panel: #0c1929;
  --panel-2: #101f31;
  --line: #26384d;
  --cyan: #55e7ff;
  --amber: #ffbd59;
  --danger: #ff7b79;
  --radius: 18px;
  --shadow: 0 28px 70px rgba(0, 0, 0, 0.34);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; overflow-x: clip; background: radial-gradient(circle at 82% 0%, #12344c 0, transparent 31rem), var(--bg); color: var(--ink); min-height: 100vh; }
img, svg { max-width: 100%; }
button, input, select { font: inherit; }
button { cursor: pointer; }
a { color: inherit; }
.skip-link { position: fixed; inset-inline-start: 1rem; top: -4rem; z-index: 10; padding: .75rem 1rem; background: var(--cyan); color: #031019; border-radius: 8px; }
.skip-link:focus { top: 1rem; }
.topbar { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; min-height: 76px; display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid rgba(255,255,255,.09); }
.brand { text-decoration: none; display: inline-flex; align-items: center; gap: .7rem; font-weight: 800; letter-spacing: -.02em; }
.brand-mark { display: block; width: 2.65rem; height: 2.65rem; object-fit: contain; padding: .22rem; background: #f7fbff; border: 1px solid rgba(255,255,255,.42); border-radius: 11px; box-shadow: 0 8px 24px rgba(0,0,0,.22); }
.header-actions { display: flex; align-items: center; gap: .75rem; }
.privacy-pill { color: var(--muted); font-size: .78rem; border: 1px solid var(--line); border-radius: 999px; padding: .45rem .7rem; }
.lang-toggle { color: var(--ink); background: transparent; border: 1px solid var(--line); border-radius: 999px; padding: .55rem .85rem; min-height: 42px; }
.lang-toggle:hover, .lang-toggle:focus-visible { border-color: var(--cyan); outline: none; }
.source-banner { width: min(1180px, calc(100% - 2rem)); margin: 1rem auto 0; padding: .8rem 1rem; display: flex; align-items: center; justify-content: center; gap: .65rem; text-align: center; color: #06121d; background: var(--cyan); border-radius: 12px; }
.source-banner[hidden] { display: none; }
main { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; }
.calculator-shell { padding: clamp(3.4rem, 7vw, 7rem) 0 4rem; }
.intro { max-width: 800px; margin-bottom: 2.2rem; }
.eyebrow { margin: 0 0 .7rem; color: var(--cyan); font: 800 .74rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .16em; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(2.65rem, 7vw, 5.7rem); line-height: .98; letter-spacing: -.065em; max-width: 980px; margin-bottom: 1.25rem; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.04; letter-spacing: -.045em; }
.lede { color: var(--muted); max-width: 650px; font-size: clamp(1.05rem, 2vw, 1.25rem); line-height: 1.55; }
.calculator-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(330px, .92fr); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.input-panel, .result-panel { padding: clamp(1.35rem, 3.4vw, 2.75rem); }
.input-panel { background: rgba(12, 25, 41, .92); display: grid; gap: 2rem; }
.result-panel { background: linear-gradient(145deg, #10263b, #0a1726); border-inline-start: 1px solid var(--line); }
.field { min-width: 0; }
.label-row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; }
label, legend { display: block; color: #d9e7f4; font-size: .9rem; font-weight: 700; margin-bottom: .65rem; }
output { color: var(--cyan); font: 800 1.25rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
input[type="range"] { width: 100%; accent-color: var(--cyan); }
.range-notes { display: flex; justify-content: space-between; color: #70859c; font-size: .72rem; }
input[type="number"], select { width: 100%; color: var(--ink); background: #071321; border: 1px solid #34495f; border-radius: 10px; padding: .82rem .9rem; min-height: 48px; }
input:focus, select:focus { border-color: var(--cyan); outline: 3px solid rgba(85, 231, 255, .13); }
.input-with-prefix { display: grid; grid-template-columns: 92px 1fr; gap: .6rem; }
.input-with-prefix > *, .two-up > * { min-width: 0; }
.input-with-suffix { position: relative; }
.input-with-suffix input { padding-inline-end: 3.3rem; }
.input-with-suffix span { position: absolute; inset-inline-end: .9rem; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: .8rem; }
.two-up { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.field-help { color: var(--muted); font-size: .78rem; line-height: 1.45; margin: .55rem 0 0; }
.quality-fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
.segmented { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid #34495f; border-radius: 10px; overflow: hidden; }
.segmented label { margin: 0; position: relative; }
.segmented input { position: absolute; opacity: 0; }
.segmented span { display: grid; place-items: center; min-height: 45px; border-inline-end: 1px solid #34495f; background: #071321; color: var(--muted); }
.segmented label:last-child span { border-inline-end: 0; }
.segmented input:checked + span { background: var(--cyan); color: #06121d; font-weight: 900; }
.segmented input:focus-visible + span { outline: 3px solid white; outline-offset: -3px; }
.result-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.result-label { font-size: .9rem; font-weight: 700; color: #d9e7f4; }
.assumption { color: var(--amber); border: 1px solid rgba(255,189,89,.45); border-radius: 999px; padding: .35rem .55rem; font-size: .7rem; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.hero-number { font: 800 clamp(3rem, 7vw, 5.9rem)/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: -.065em; color: var(--cyan); margin: 2.8rem 0 .35rem; overflow-wrap: anywhere; }
.hero-caption { color: var(--muted); margin-bottom: 2.5rem; }
.metric-list { border-top: 1px solid var(--line); }
.metric { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.metric span { color: var(--muted); font-size: .88rem; }
.metric strong { min-width: 0; max-width: 58%; overflow-wrap: anywhere; text-align: end; font: 750 1.18rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; }
.metric.waste strong { color: var(--amber); }
.explain { color: #7f95ab; font: .78rem/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; margin: 1.15rem 0; }
.result-actions { display: grid; grid-template-columns: 1fr 1fr; gap: .7rem; }
.result-to-kit { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: .85rem; padding: .9rem 1rem; color: var(--ink); text-decoration: none; background: rgba(85, 231, 255, .08); border: 1px solid rgba(85, 231, 255, .34); border-radius: 10px; }
.result-to-kit span { color: var(--muted); font-size: .78rem; }
.result-to-kit strong { color: var(--cyan); font-size: .84rem; text-align: end; }
.result-to-kit:hover { background: rgba(85, 231, 255, .13); border-color: var(--cyan); }
.result-to-kit:focus-visible { outline: 3px solid white; outline-offset: 2px; }
.primary, .secondary { min-height: 48px; border-radius: 10px; padding: .8rem 1rem; font-weight: 850; border: 1px solid transparent; }
.primary { background: var(--cyan); color: #04131d; }
.primary:hover { background: #86efff; }
.secondary { background: transparent; color: var(--ink); border-color: #3c5269; }
.secondary:hover { border-color: var(--cyan); }
.primary:focus-visible, .secondary:focus-visible { outline: 3px solid white; outline-offset: 2px; }
.full { width: 100%; }
.status { min-height: 1.3em; color: var(--cyan); font-size: .78rem; margin: .65rem 0 0; }
.decision-strip { padding: 5rem 0; display: grid; grid-template-columns: .8fr 1.2fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.decision-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.decision-grid article { background: var(--bg); padding: 1.5rem; min-height: 170px; }
.decision-grid article > span { color: var(--cyan); font: .75rem/1 ui-monospace, SFMono-Regular, Menlo, monospace; }
.decision-grid h3 { font-size: 1.25rem; margin: 1.8rem 0 .5rem; }
.decision-grid p { color: var(--muted); line-height: 1.45; }
.kit-section { margin: 2rem 0 5rem; padding: clamp(1.5rem, 5vw, 4rem); background: var(--amber); color: #171008; border-radius: var(--radius); display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 7vw, 7rem); align-items: center; }
.kit-section .eyebrow { color: #4a2d00; }
.kit-copy > p:not(.eyebrow) { font-size: 1.08rem; line-height: 1.6; max-width: 650px; }
.kit-copy ul { padding-inline-start: 1.25rem; line-height: 1.8; font-weight: 650; }
.kit-card { background: #10151c; color: var(--ink); border-radius: 14px; padding: 1.65rem; box-shadow: 0 20px 45px rgba(74,45,0,.25); }
.closing-cta { margin: 0 0 5rem; padding: clamp(1.5rem, 4vw, 3rem); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(135deg, #0d1d31, #102b42); display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.closing-cta h2 { max-width: 760px; margin-bottom: .8rem; }
.closing-cta p:not(.eyebrow) { color: var(--muted); max-width: 720px; margin-bottom: 0; line-height: 1.55; }
.closing-cta .primary { flex: 0 0 auto; }
.kit-edition { color: var(--cyan); font: 800 .72rem/1.3 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .14em; }
.kit-price { color: var(--muted); }
.kit-price strong { display: block; color: var(--ink); font-size: 2.8rem; margin: .4rem 0 1.3rem; }
.micro { color: var(--muted); font-size: .75rem; line-height: 1.45; margin: .7rem 0 0; }
.method { border-top: 1px solid var(--line); padding: 4rem 0 5rem; }
.method h2 { max-width: 700px; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.method-grid p { color: var(--muted); line-height: 1.55; border-inline-start: 2px solid var(--line); padding-inline-start: 1rem; }
.method-grid strong { color: var(--ink); }
.faq { padding: 0 0 5rem; }
.faq > h2 { max-width: 760px; }
.faq-list { display: grid; gap: .7rem; max-width: 900px; }
.faq details { background: rgba(12, 25, 41, .78); border: 1px solid var(--line); border-radius: 12px; padding: 0 1.1rem; }
.faq summary { cursor: pointer; color: var(--ink); font-weight: 800; padding-block: 1rem; padding-inline: 0 2rem; position: relative; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; inset-inline-end: 0; color: var(--cyan); font-size: 1.35rem; line-height: 1; }
.faq details[open] summary::after { content: "−"; }
.faq details p { color: var(--muted); font-size: 1rem; line-height: 1.6; margin: 0 0 1.1rem; max-width: 760px; }
footer { width: min(1180px, calc(100% - 2rem)); margin: 0 auto; min-height: 84px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--muted); font-size: .8rem; }
.footer-actions { display: flex; align-items: center; justify-content: flex-end; gap: .85rem; }
.privacy-settings { color: var(--muted); background: transparent; border: 0; border-bottom: 1px solid currentColor; padding: .15rem 0; font-size: inherit; }
.privacy-settings:hover, .privacy-settings:focus-visible { color: var(--cyan); outline: none; }
.consent-banner { position: fixed; z-index: 20; inset-inline: 1rem; bottom: 1rem; width: min(760px, calc(100% - 2rem)); margin-inline: auto; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.25rem; padding: 1.15rem; color: var(--ink); background: rgba(12, 25, 41, .98); border: 1px solid #3c5269; border-radius: 14px; box-shadow: var(--shadow); }
.consent-banner[hidden] { display: none; }
.consent-banner strong { display: block; margin-bottom: .3rem; }
.consent-banner p { color: var(--muted); font-size: .82rem; line-height: 1.5; margin: 0; }
.consent-actions { display: flex; gap: .55rem; }
.consent-actions button { white-space: nowrap; }
dialog { width: min(560px, calc(100% - 2rem)); color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 0; box-shadow: var(--shadow); }
dialog::backdrop { background: rgba(2, 7, 13, .78); backdrop-filter: blur(5px); }
dialog form { position: relative; padding: 2rem; }
dialog h2 { font-size: 1.8rem; letter-spacing: -.035em; }
dialog p:not(.eyebrow) { color: var(--muted); line-height: 1.55; }
.dialog-close { position: absolute; top: .7rem; inset-inline-end: .7rem; width: 42px; height: 42px; border: 0; border-radius: 50%; background: transparent; color: var(--muted); font-size: 1.6rem; }
.share-preview { white-space: pre-wrap; overflow-wrap: anywhere; margin: 1.2rem 0; padding: 1rem; border: 1px solid var(--line); border-radius: 10px; background: #071321; color: #d9e7f4; font: .88rem/1.55 ui-monospace, SFMono-Regular, Menlo, monospace; }
.dialog-actions { display: grid; grid-template-columns: 1fr 1.4fr; gap: .7rem; }

[dir="rtl"] body { font-family: Arial, "Noto Sans Hebrew", sans-serif; }
[dir="rtl"] .eyebrow, [dir="rtl"] .hero-number, [dir="rtl"] .metric strong, [dir="rtl"] output, [dir="rtl"] .explain { letter-spacing: 0; }

@media (max-width: 820px) {
  .privacy-pill { display: none; }
  .calculator-shell { padding-top: 3rem; }
  .calculator-grid, .decision-strip, .kit-section { grid-template-columns: 1fr; }
  .closing-cta { align-items: stretch; flex-direction: column; }
  .closing-cta .primary { width: 100%; }
  .result-panel { border-inline-start: 0; border-top: 1px solid var(--line); }
  .decision-strip { gap: 1.4rem; }
  .method-grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .source-banner { align-items: flex-start; flex-direction: column; text-align: start; }
  .topbar, main, footer { width: min(100% - 1.25rem, 1180px); }
  .topbar { min-height: 66px; }
  .brand { gap: .55rem; font-size: .98rem; }
  .brand-mark { width: 2.25rem; height: 2.25rem; border-radius: 9px; }
  .lang-toggle { min-height: 44px; padding-inline: .72rem; }
  .calculator-shell { padding: 2rem 0 2.75rem; }
  .intro { margin-bottom: 1.35rem; }
  .eyebrow { margin-bottom: .55rem; font-size: .7rem; letter-spacing: .12em; }
  h1 { max-width: 100%; margin-bottom: 1rem; font-size: clamp(2.15rem, 11.5vw, 2.75rem); line-height: 1.01; letter-spacing: -.048em; overflow-wrap: break-word; }
  h2 { font-size: clamp(1.85rem, 9vw, 2.35rem); line-height: 1.08; letter-spacing: -.035em; }
  .lede { margin-bottom: 0; font-size: 1rem; line-height: 1.5; }
  .calculator-grid { border-radius: 14px; }
  .input-panel, .result-panel { padding: 1rem; }
  .input-panel { gap: 1.5rem; }
  .two-up, .result-actions, .decision-grid { grid-template-columns: 1fr; }
  .two-up { gap: 1.25rem; }
  .input-with-prefix { grid-template-columns: 82px minmax(0, 1fr); }
  .dialog-actions { grid-template-columns: 1fr; }
  .decision-grid article { min-height: auto; }
  .segmented span { min-height: 48px; }
  .result-head { align-items: flex-start; flex-wrap: wrap; }
  .label-row { flex-wrap: wrap; gap: .35rem .75rem; }
  .hero-number { margin-top: 2rem; font-size: clamp(2.25rem, 12vw, 3.05rem); line-height: 1.05; letter-spacing: -.045em; }
  .hero-caption { margin-bottom: 1.75rem; }
  .metric { align-items: flex-start; gap: .75rem; }
  .metric span { line-height: 1.35; }
  .metric strong { max-width: 54%; font-size: 1.05rem; }
  .result-to-kit { align-items: flex-start; flex-direction: column; gap: .35rem; }
  .result-to-kit strong { text-align: start; }
  .decision-strip { padding: 3.25rem 0; }
  .decision-grid article { padding: 1.2rem; }
  .decision-grid h3 { margin-top: 1.15rem; }
  .kit-section { margin: 1rem 0 3.5rem; padding: 1.25rem; gap: 1.4rem; }
  .kit-card { padding: 1.25rem; }
  .kit-price strong { font-size: 2.35rem; }
  .method { padding: 3.25rem 0; }
  .faq { padding-bottom: 3.5rem; }
  .closing-cta { margin-bottom: 3.5rem; padding: 1.25rem; gap: 1.35rem; }
  footer, .footer-actions { align-items: flex-start; flex-direction: column; justify-content: center; padding: 1rem 0; }
  .footer-actions { gap: .55rem; padding: 0; }
  .consent-banner { grid-template-columns: 1fr; max-height: calc(100dvh - 2rem); overflow-y: auto; }
  .consent-actions { display: grid; grid-template-columns: 1fr 1.35fr; }
  dialog form { padding: 1.35rem; }
  dialog h2 { font-size: 1.55rem; }
}

@media (max-width: 380px) {
  .topbar, main, footer { width: min(100% - 1rem, 1180px); }
  .brand-mark { width: 2.1rem; height: 2.1rem; }
  .segmented span { font-size: .88rem; }
  .consent-actions { grid-template-columns: 1fr; }
  .consent-actions button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}