:root {
  --ink: #1f2a30;
  --muted: #627078;
  --line: #dfe5e6;
  --paper: #fff;
  --surface: #f4f6f5;
  --hero: #27333b;
  --hero-2: #34434b;
  --accent: #c46f45;
  --accent-dark: #a95734;
  --accent-soft: #f6e8df;
  --positive: #19724b;
  --positive-soft: #e8f5ef;
  --warning: #9a6416;
  --warning-soft: #fff6df;
  --negative: #a93c3c;
  --negative-soft: #fbecec;
  --shadow: 0 18px 55px rgba(31, 42, 48, .09);
  --radius: 20px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

button, input, select { font: inherit; }

button, a { -webkit-tap-highlight-color: transparent; }

a { color: inherit; }

.shell {
  width: min(1180px, calc(100% - 32px));
  margin-inline: auto;
}

.hero {
  color: #f8f4ee;
  background:
    radial-gradient(circle at 78% 10%, rgba(196, 111, 69, .18), transparent 30%),
    linear-gradient(125deg, var(--hero), var(--hero-2));
  padding: 72px 0 96px;
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, .65fr);
  gap: 72px;
  align-items: end;
}

.hero h1 {
  max-width: 720px;
  margin: 14px 0 18px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.02;
  letter-spacing: -.04em;
}

.hero__lead {
  max-width: 700px;
  margin: 0 0 24px;
  color: #dce3e4;
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.4;
}

.eyebrow {
  display: inline-block;
  color: #e5a986;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.eyebrow--dark { color: var(--accent-dark); }

.hero__benefits {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 30px;
}

.hero__benefits span {
  padding: 7px 11px;
  color: #e8eeee;
  border: 1px solid rgba(255,255,255,.17);
  border-radius: 999px;
  font-size: 13px;
}

.hero__note {
  padding: 24px;
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 18px;
  background: rgba(255,255,255,.07);
  backdrop-filter: blur(8px);
}

.hero__note strong { color: #e5a986; }
.hero__note p { margin: 8px 0 0; color: #e1e7e7; }

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 750;
  text-decoration: none;
  transition: transform .18s ease, background .18s ease, border-color .18s ease;
}

.button:hover { transform: translateY(-1px); }
.button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible {
  outline: 3px solid rgba(196,111,69,.3);
  outline-offset: 2px;
}
.button--accent { color: white; background: var(--accent); }
.button--accent:hover { background: var(--accent-dark); }
.button--ghost { color: var(--muted); border-color: var(--line); background: white; }
.button--light { color: var(--ink); background: white; }

.calculator {
  position: relative;
  z-index: 2;
  margin-top: -44px;
  overflow: hidden;
  border: 1px solid rgba(31,42,48,.07);
  border-radius: var(--radius);
  background: white;
  box-shadow: var(--shadow);
}

.section-heading {
  display: flex;
  gap: 24px;
  align-items: end;
  justify-content: space-between;
  padding: 32px 36px 26px;
  border-bottom: 1px solid var(--line);
}

.section-heading h2, .audit-section h2, .seo-section h2 {
  margin: 6px 0 5px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.15;
  letter-spacing: -.025em;
}

.section-heading p { margin: 0; color: var(--muted); }

.calculator__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(430px, .92fr);
}

.inputs-panel { padding: 32px 36px 38px; }

fieldset {
  margin: 0 0 30px;
  padding: 0;
  border: 0;
}

legend {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  font-size: 15px;
  font-weight: 800;
}

legend span {
  display: inline-grid;
  width: 27px;
  height: 27px;
  place-items: center;
  color: white;
  border-radius: 8px;
  background: var(--hero);
  font-size: 13px;
}

.field-grid { display: grid; gap: 17px 18px; }
.field-grid--two { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.field { display: flex; min-width: 0; flex-direction: column; gap: 7px; }
.field > span { min-height: 24px; color: #46545b; font-size: 13px; font-weight: 700; }
.field small { color: #7b888e; font-size: 11px; }

.hint {
  display: inline-grid;
  width: 19px;
  height: 19px;
  margin-left: 3px;
  padding: 0;
  place-items: center;
  color: var(--muted);
  border: 1px solid #cbd3d5;
  border-radius: 50%;
  background: white;
  cursor: help;
  font-size: 11px;
}

.hint:hover::after, .hint:focus::after {
  position: absolute;
  z-index: 10;
  width: min(260px, 70vw);
  margin: 27px 0 0 -130px;
  padding: 9px 11px;
  color: white;
  border-radius: 8px;
  background: var(--hero);
  box-shadow: 0 8px 24px rgba(0,0,0,.14);
  content: attr(data-tip);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.35;
}

select, .input-unit {
  width: 100%;
  min-height: 46px;
  border: 1px solid #cfd7d8;
  border-radius: 11px;
  background: white;
}

select { padding: 10px 12px; color: var(--ink); }

.input-unit {
  display: flex;
  overflow: hidden;
  align-items: center;
}

.input-unit:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(196,111,69,.12); }

.input-unit input {
  width: 100%;
  min-width: 0;
  padding: 10px 6px 10px 12px;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
  font-weight: 750;
}

.input-unit b {
  padding: 0 11px 0 6px;
  color: #778389;
  font-size: 11px;
  white-space: nowrap;
}

.input-unit--target { border-color: #ddb092; background: #fffaf7; }

input[type=number]::-webkit-inner-spin-button,
input[type=number]::-webkit-outer-spin-button { appearance: none; margin: 0; }
input[type=number] { -moz-appearance: textfield; }

.expenses-details {
  margin-top: -5px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #fafbfa;
}

.expenses-details summary {
  padding: 14px 16px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
}

.details-body { padding: 4px 16px 18px; }

.form-note {
  margin: 18px 0 0;
  padding: 12px 14px;
  color: #675c50;
  border-radius: 10px;
  background: #faf4ed;
  font-size: 12px;
}

.results-panel {
  padding: 32px 34px 38px;
  border-left: 1px solid var(--line);
  background: #f7f9f8;
}

.result-status {
  display: inline-block;
  margin-bottom: 15px;
  padding: 5px 9px;
  color: var(--positive);
  border-radius: 999px;
  background: var(--positive-soft);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.result-status[data-state="warning"] { color: var(--warning); background: var(--warning-soft); }
.result-status[data-state="negative"] { color: var(--negative); background: var(--negative-soft); }

.key-results {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 10px;
}

.key-card {
  display: flex;
  min-height: 132px;
  flex-direction: column;
  padding: 15px;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: white;
}

.key-card--primary { color: white; border-color: var(--hero); background: var(--hero); }
.key-card span { min-height: 42px; color: #66747a; font-size: 11px; font-weight: 750; line-height: 1.3; }
.key-card--primary span { color: #cad3d5; }
.key-card strong { margin-top: auto; font-size: clamp(20px, 2vw, 27px); line-height: 1; white-space: nowrap; }
.key-card small { margin-top: 7px; color: #79868b; font-size: 10px; }
.key-card--primary small { color: #cbd4d5; }

.diagnosis {
  margin: 20px 0;
  padding: 17px 18px;
  color: #3c4a50;
  border-left: 4px solid var(--positive);
  border-radius: 3px 12px 12px 3px;
  background: var(--positive-soft);
  font-size: 13px;
}

.diagnosis.warning { border-color: var(--warning); background: var(--warning-soft); }
.diagnosis.negative { border-color: var(--negative); background: var(--negative-soft); }
.diagnosis strong { color: var(--ink); }

.metrics, .waterfall { margin-top: 24px; }
.metrics h3, .waterfall h3 { margin: 0; font-size: 15px; }
.metrics dl { margin: 12px 0 0; }
.metrics dl div { display: flex; gap: 20px; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid var(--line); }
.metrics dt { color: var(--muted); font-size: 12px; }
.metrics dd { margin: 0; text-align: right; font-size: 12px; font-weight: 800; }

.subheading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 13px; }
.subheading span { font-size: 13px; font-weight: 800; }

.bar-row {
  display: grid;
  grid-template-columns: 118px 1fr 82px;
  gap: 9px;
  align-items: center;
  margin: 9px 0;
  font-size: 11px;
}

.bar-label { overflow: hidden; color: var(--muted); text-overflow: ellipsis; white-space: nowrap; }
.bar-track { height: 8px; overflow: hidden; border-radius: 999px; background: #e4e9e9; }
.bar-fill { height: 100%; min-width: 2px; border-radius: inherit; background: #77888f; }
.bar-fill--profit { background: var(--positive); }
.bar-fill--loss { background: var(--negative); }
.bar-value { text-align: right; font-weight: 800; }

.scenario-section {
  margin-top: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: white;
}

.scenario-grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 34px;
  padding: 30px 36px 38px;
}

.scenario-controls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.quick-scenarios { display: flex; grid-column: 1 / -1; flex-wrap: wrap; gap: 8px; }
.quick-scenarios button { padding: 8px 11px; color: var(--accent-dark); border: 1px solid #dfb79f; border-radius: 9px; background: #fffaf7; cursor: pointer; font-size: 12px; font-weight: 750; }

.scenario-result {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  color: white;
  border-radius: 16px;
  background: var(--hero);
}

.scenario-result > span { color: #c8d2d4; font-size: 12px; }
.scenario-result > strong { margin: 8px 0; font-size: clamp(31px, 4vw, 46px); line-height: 1; }
.scenario-result > p { margin: 0 0 14px; color: #e5a986; font-weight: 800; }
.scenario-warning { color: #dce3e4; font-size: 12px; }

.audit-section {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 50px;
  align-items: center;
  margin-top: 28px;
  padding: 40px;
  color: white;
  border-radius: var(--radius);
  background: linear-gradient(120deg, #303d44, #3b4b52);
}

.audit-section h2 { max-width: 760px; }
.audit-section p { max-width: 720px; margin-bottom: 0; color: #d4dddd; }
.audit-actions { display: flex; flex-direction: column; gap: 10px; }

.seo-section { padding-block: 54px; }
.seo-section > p { max-width: 900px; color: var(--muted); }
.faq { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 24px; }
.faq details { padding: 16px; border: 1px solid var(--line); border-radius: 12px; background: white; }
.faq summary { cursor: pointer; font-size: 14px; font-weight: 800; }
.faq p { margin: 12px 0 0; color: var(--muted); font-size: 13px; }

footer { padding: 28px 0; color: #d7dfe0; background: #202a30; }
.footer__inner { display: flex; justify-content: space-between; }
.footer__inner div { display: flex; gap: 6px 18px; flex-wrap: wrap; }
.footer__inner span, .footer__inner a { color: #aebbbf; font-size: 13px; text-decoration: none; }

@media (max-width: 940px) {
  .hero__inner, .calculator__grid, .scenario-grid, .audit-section { grid-template-columns: 1fr; }
  .hero__inner { gap: 32px; }
  .hero__note { max-width: 620px; }
  .results-panel { border-top: 1px solid var(--line); border-left: 0; }
  .audit-actions { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 640px) {
  .shell { width: min(100% - 20px, 1180px); }
  .hero { padding: 52px 0 76px; }
  .hero h1 { font-size: 42px; }
  .calculator { margin-top: -28px; border-radius: 15px; }
  .section-heading { align-items: flex-start; padding: 24px 18px 20px; flex-direction: column; }
  .inputs-panel, .results-panel, .scenario-grid { padding: 24px 18px 28px; }
  .field-grid--two, .scenario-controls { grid-template-columns: 1fr; }
  .key-results { grid-template-columns: 1fr 1fr; }
  .key-card--primary { grid-column: 1 / -1; }
  .key-card { min-height: 118px; }
  .bar-row { grid-template-columns: 100px 1fr 76px; }
  .audit-section { gap: 24px; padding: 28px 20px; }
  .audit-actions { flex-direction: column; }
  .faq { grid-template-columns: 1fr; }
  .footer__inner { gap: 18px; flex-direction: column; }
}

@media print {
  body { background: white; }
  .hero, .scenario-section, .audit-section, .seo-section, footer, #resetButton { display: none !important; }
  .calculator { width: 100%; margin: 0; border: 0; box-shadow: none; }
  .calculator__grid { grid-template-columns: 1fr 1fr; }
  .inputs-panel, .results-panel { padding: 20px; }
  .expenses-details { display: block; }
  .expenses-details > .details-body { display: grid; }
}