:root {
  color-scheme: light;
  --page: #f6f8f4;
  --surface: #ffffff;
  --surface-soft: #eef3ee;
  --surface-accent: #e5efe8;
  --ink: #202722;
  --ink-soft: #526057;
  --ink-faint: #758078;
  --line: #dce4dd;
  --line-strong: #bdcbbf;
  --green: #3f6f58;
  --green-dark: #28503d;
  --green-soft: #e2eee6;
  --danger: #9a3d36;
  --focus: rgba(63, 111, 88, .28);
  --shadow: 0 18px 54px rgba(42, 65, 50, .11);
  --font: "Microsoft YaHei UI", "PingFang SC", "Noto Sans CJK SC", system-ui, sans-serif;
  --number: "Segoe UI", "DIN Alternate", var(--font);
  --radius: 14px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button,
input,
select { font: inherit; }

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

button:active { transform: translateY(1px); }

[hidden] { display: none !important; }

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--surface);
  font-size: 13px;
  transform: translateY(-150%);
}

.skip-link:focus { transform: translateY(0); }

.app-shell {
  width: min(100%, 620px);
  min-height: 100dvh;
  margin: 0 auto;
  padding: 0 22px env(safe-area-inset-bottom);
}

#app:focus { outline: none; }

.view { padding: 25px 0 42px; }

.home-view { padding-top: clamp(30px, 8vh, 72px); }

.home-hero { max-width: 520px; }

.product-name,
.progress-copy,
.result-label {
  margin: 0 0 13px;
  color: var(--green);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: .02em;
}

.home-hero h1,
.page-heading h1,
.result-focus h1 {
  margin: 0;
  letter-spacing: -.045em;
  text-wrap: balance;
}

.home-hero h1 {
  max-width: 12em;
  font-size: clamp(34px, 9.3vw, 48px);
  line-height: 1.25;
}

.home-subtitle {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.7;
}

.primary-button,
.secondary-button {
  width: 100%;
  min-height: 54px;
  padding: 0 18px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 760;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 120ms ease;
}

.primary-button {
  border: 1px solid var(--green-dark);
  background: var(--green-dark);
  color: #f5faf6;
}

.primary-button:hover { background: var(--green); }

.secondary-button {
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--green-dark);
}

.secondary-button:hover { border-color: var(--green); background: var(--green-soft); }

.home-cta { width: auto; min-width: 178px; margin-top: 26px; }

.quick-example {
  margin-top: 48px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-example > p {
  margin: 0 0 13px;
  color: var(--ink-faint);
  font-size: 12px;
}

.example-equation {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
  color: var(--ink-soft);
  font-family: var(--number);
  font-size: 13px;
  line-height: 1.6;
}

.example-equation b { color: var(--green); font-weight: 600; }

.example-result {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-top: 14px;
}

.example-result span { color: var(--ink-soft); font-size: 13px; }
.example-result strong { color: var(--green-dark); font-family: var(--number); font-size: 29px; letter-spacing: -.04em; }
.quick-example .example-question { margin: 13px 0 0; color: var(--ink); font-size: 14px; font-weight: 700; }

.home-privacy {
  margin: 15px 0 0;
  color: var(--ink-faint);
  font-size: 11px;
  line-height: 1.6;
}

.more-tools { margin-top: 51px; }
.more-tools h2 { margin: 0 0 7px; color: var(--ink-faint); font-size: 13px; font-weight: 650; }

.more-tools > button {
  display: grid;
  width: 100%;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.more-tools > button span { display: grid; gap: 4px; }
.more-tools strong { font-size: 14px; }
.more-tools small { color: var(--ink-faint); font-size: 11px; }
.more-tools b { color: var(--green); font-size: 22px; font-weight: 500; }

.back-button {
  min-height: 38px;
  margin: 0 0 22px -10px;
  padding: 0 10px;
  border: 0;
  background: transparent;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 680;
  cursor: pointer;
}

.back-button::before { content: "‹"; margin-right: 7px; color: var(--green); font-size: 19px; vertical-align: -1px; }

.page-heading { margin-bottom: 34px; }
.page-heading h1 { max-width: 15em; font-size: clamp(28px, 7.5vw, 38px); line-height: 1.25; }
.page-heading > p:last-child { max-width: 34em; margin: 13px 0 0; color: var(--ink-soft); font-size: 14px; line-height: 1.7; }
.compact-heading { margin-bottom: 25px; }

.calculator-form,
.project-fields { display: grid; gap: 25px; }

.short-form { max-width: 520px; }

.question-block { display: grid; gap: 9px; }

.question-title,
.balance-step > label,
.reuse-input > label {
  color: var(--ink);
  font-size: 15px;
  font-weight: 730;
  line-height: 1.55;
}

.question-title > span { margin-left: 7px; color: var(--ink-faint); font-size: 11px; font-weight: 500; }

.input-shell {
  display: grid;
  min-height: 55px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.input-shell:focus-within { border-color: var(--green); box-shadow: 0 0 0 3px var(--focus); }

.input-shell input,
.input-shell select {
  width: 100%;
  min-width: 0;
  min-height: 53px;
  padding: 0 15px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--number);
  font-size: 18px;
}

.input-shell input::placeholder { color: var(--ink-faint); opacity: .78; font-family: var(--font); font-size: 14px; }
.input-shell select { width: auto; padding-right: 35px; color: var(--green-dark); font-size: 14px; font-weight: 700; }
.unit { padding: 0 14px; color: var(--ink-soft); font-size: 12px; white-space: nowrap; }
.compact-input { width: min(180px, 100%); }

.quick-options,
.target-rate-options,
.source-options,
.mode-options,
.binary-options { display: flex; flex-wrap: wrap; gap: 8px; }

.quick-option,
.mode-option,
.binary-options button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.quick-option.is-selected,
.mode-option.is-selected,
.binary-options button.is-selected {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green-dark);
}

.question-hint { margin: 0; color: var(--ink-faint); font-size: 11px; line-height: 1.6; }
.field-error { min-height: 0; margin: 0; color: var(--danger); font-size: 11px; }
.field-error:empty { display: none; }
.form-error { display: none; margin: -4px 0; padding: 11px 13px; border-left: 3px solid var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); color: var(--danger); font-size: 12px; line-height: 1.6; }
.form-error.is-visible { display: block; }

.result-view { padding-top: 22px; }

.result-focus {
  margin-bottom: 14px;
  padding: 27px 24px;
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.result-kicker { margin: 0 0 6px; color: var(--ink-soft); font-size: 14px; }
.result-number { display: flex; align-items: baseline; gap: 8px; margin: 0; color: var(--green-dark); }
.result-number strong { font-family: var(--number); font-size: clamp(53px, 15vw, 72px); font-weight: 790; letter-spacing: -.065em; line-height: 1.12; }
.result-number small { font-size: 13px; font-weight: 700; }
.result-focus h1 { margin-top: 3px; font-size: 23px; line-height: 1.4; }
.only-quantity { margin: 18px 0 0; padding-top: 15px; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 13px; }

.discovery-section,
.plain-disclosure,
.result-actions,
.consult-section,
.project-questions {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.discovery-section h2,
.consult-section h2,
.project-questions h2,
.payback-discovery h2 {
  margin: 0 0 13px;
  font-size: 22px;
  letter-spacing: -.035em;
  line-height: 1.4;
}

.discovery-section > p,
.consult-section > p,
.net-income-gate > p {
  margin: 0 0 19px;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.75;
}

.discovery-lead { margin-bottom: 12px !important; }

.target-rate-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }

.target-rate-button {
  display: grid;
  min-width: 0;
  min-height: 64px;
  place-content: center;
  gap: 3px;
  padding: 8px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink-soft);
  cursor: pointer;
}

.target-rate-button span { font-family: var(--number); font-size: 13px; font-weight: 750; white-space: nowrap; }
.target-rate-button small { min-height: 14px; color: var(--ink-faint); font-size: 9px; }
.target-rate-button.is-selected { border-color: var(--green); background: var(--green-soft); color: var(--green-dark); }

.instant-finding {
  display: grid;
  gap: 4px;
  margin-top: 16px;
  padding: 17px 0 17px 15px;
  border-left: 3px solid var(--green);
}

.instant-finding span { color: var(--ink-soft); font-size: 12px; }
.instant-finding b { color: var(--green-dark); font-family: var(--number); font-size: 24px; letter-spacing: -.03em; }

.consulting-judgment {
  margin: 23px 0 0 !important;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft) !important;
}

.consulting-judgment strong { color: var(--ink); }

.cost-discoveries { border-top: 1px solid var(--line); }

.cost-discovery { border-bottom: 1px solid var(--line); }

.cost-discovery > button {
  display: grid;
  width: 100%;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 18px 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.cost-discovery > button span { display: grid; gap: 5px; }
.cost-discovery > button strong { font-size: 15px; }
.cost-discovery > button small { color: var(--ink-faint); font-size: 11px; line-height: 1.55; }
.cost-discovery > button b { color: var(--green); font-size: 12px; white-space: nowrap; }

.cost-input-region { padding: 2px 0 19px; }
.cost-input-region > label { display: block; margin: 0 0 8px; font-size: 13px; font-weight: 700; }
.cost-input-region > p { margin: 0 0 9px; color: var(--ink-faint); font-size: 11px; }

.live-cost-total {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 6px;
  margin-top: 24px;
}

.live-cost-total span { margin-right: auto; color: var(--ink-soft); font-size: 13px; }
.live-cost-total strong { color: var(--green-dark); font-family: var(--number); font-size: 33px; letter-spacing: -.04em; }
.live-cost-total small { color: var(--ink-soft); font-size: 11px; }

.cost-breakdown { margin-top: 17px; padding-top: 12px; border-top: 1px solid var(--line); }
.cost-breakdown > div { display: flex; justify-content: space-between; gap: 16px; padding: 6px 0; color: var(--ink-soft); font-size: 12px; }
.cost-breakdown strong { color: var(--ink); font-family: var(--number); }
.cost-breakdown .minus { color: var(--green); }

.cognitive-upgrade {
  margin-top: 28px;
  padding: 22px 20px;
  border-radius: var(--radius);
  background: var(--surface-accent);
}

.cognitive-upgrade > p { margin: 0 0 8px; color: var(--ink-soft); font-size: 12px; line-height: 1.65; }
.cognitive-upgrade > strong { display: block; margin: 3px 0 7px; color: var(--green-dark); font-family: var(--number); font-size: 31px; letter-spacing: -.04em; }
.cognitive-upgrade #upgradeDelta strong { color: var(--green-dark); }
.cognitive-upgrade blockquote { margin: 23px 0 8px; color: var(--ink); font-size: 18px; font-weight: 760; line-height: 1.55; }
.cognitive-upgrade small { color: var(--ink-faint); font-size: 11px; line-height: 1.6; }

.source-options { display: grid; gap: 8px; }

.source-option {
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink-soft);
  text-align: left;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.source-option.is-selected { border-color: var(--green); background: var(--green-soft); color: var(--green-dark); }
.source-feedback:empty { display: none; }
.source-feedback { margin-top: 16px; }
.source-feedback > p { margin: 0; padding-left: 14px; border-left: 3px solid var(--green); color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.priority-finding { padding: 18px; border-radius: var(--radius); background: var(--surface-accent); }
.priority-finding h3 { margin: 0 0 9px; font-size: 18px; }
.priority-finding p { margin: 6px 0; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.priority-finding strong { color: var(--green-dark); }

.plain-disclosure > button {
  display: flex;
  width: 100%;
  justify-content: space-between;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 750;
  cursor: pointer;
}

#sensitivityContent { padding-top: 19px; }
#sensitivityContent > p { margin: 0 0 12px; color: var(--ink-soft); font-size: 12px; }
.sensitivity-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); }
.sensitivity-list > div { display: grid; gap: 5px; padding: 13px 7px; background: var(--page); text-align: center; }
.sensitivity-list span { color: var(--ink-faint); font-size: 11px; }
.sensitivity-list strong { font-family: var(--number); font-size: 14px; }

.question-prompts article { padding: 15px 0; border-top: 1px solid var(--line); }
.question-prompts article:last-child { padding-bottom: 0; }
.question-prompts h3 { margin: 0 0 5px; font-size: 15px; }
.question-prompts p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.65; }

.balance-progress {
  position: sticky;
  top: 10px;
  z-index: 5;
  margin-bottom: 24px;
  padding: 17px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  box-shadow: 0 10px 28px rgba(42, 65, 50, .08);
  backdrop-filter: blur(12px);
}

.balance-progress > div:first-child { display: flex; justify-content: space-between; gap: 14px; color: var(--ink-soft); font-size: 12px; }
.balance-progress > div:first-child strong,
.balance-progress > div:first-child b { color: var(--green-dark); font-family: var(--number); }
.progress-track { height: 5px; margin: 10px 0 13px; overflow: hidden; border-radius: 999px; background: var(--line); }
.progress-track i { display: block; height: 100%; border-radius: inherit; background: var(--green); transition: width 220ms ease; }
.balance-progress p { margin: 0; font-size: 15px; font-weight: 650; }
.balance-progress p strong { color: var(--green-dark); font-family: var(--number); font-size: 19px; }

.balance-steps { display: grid; gap: 12px; }
.balance-step { padding: 22px 0; border-bottom: 1px solid var(--line); }
.balance-step > label,
.step-question { display: block; margin: 0 0 12px; font-size: 16px; font-weight: 730; line-height: 1.55; }
.reuse-input { margin-top: 16px; }
.reuse-input > label { display: block; margin-bottom: 8px; font-size: 13px; }

.balance-final {
  margin-top: 34px;
  padding: 25px 22px;
  border-radius: var(--radius);
  background: var(--surface-accent);
}

.balance-final > p { margin: 0 0 10px; color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.balance-final h2 { margin: 0 0 13px; color: var(--green-dark); font-size: 27px; letter-spacing: -.04em; line-height: 1.35; }
.balance-final blockquote { margin: 22px 0 0; padding-top: 18px; border-top: 1px solid var(--line-strong); font-size: 16px; font-weight: 750; line-height: 1.6; }

.mode-options { margin-bottom: 27px; }
.project-fields { gap: 22px; }

.instant-project-result,
.payback-live,
.net-benefit {
  display: grid;
  gap: 4px;
  margin-top: 22px;
  padding: 19px 0 19px 16px;
  border-left: 3px solid var(--green);
}

.instant-project-result span,
.payback-live span,
.net-benefit span { color: var(--ink-soft); font-size: 12px; }
.instant-project-result strong,
.payback-live strong,
.net-benefit strong { color: var(--green-dark); font-family: var(--number); font-size: 31px; letter-spacing: -.04em; }
.instant-project-result small,
.net-benefit small { color: var(--ink-faint); font-size: 11px; line-height: 1.5; }

.text-button {
  min-height: 44px;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--green-dark);
  font-size: 14px;
  font-weight: 760;
  text-align: left;
  cursor: pointer;
}

.result-oriented { margin-top: 14px; }

.payback-discovery { margin-top: 22px; padding: 27px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.payback-discovery > .question-block { margin-top: 18px; }
.net-income-gate { margin-top: 30px; padding-top: 25px; border-top: 1px solid var(--line); }
.net-income-gate h3 { margin: 0 0 9px; font-size: 20px; letter-spacing: -.025em; }
#runningCostRegion { margin-top: 19px; }
.project-questions { border-top: 0; }

.result-actions { display: grid; gap: 12px; }
.small-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 2px; background: var(--line); }
.small-actions button { min-height: 42px; border: 0; background: var(--page); color: var(--green-dark); font-size: 12px; font-weight: 700; cursor: pointer; }

.share-card {
  display: none;
  margin-top: 5px;
  padding: 25px 22px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
}

.share-card.is-visible { display: block; animation: view-in 180ms ease-out both; }
.share-brand { margin: 0 0 24px; color: var(--green); font-size: 11px; font-weight: 750; }
.share-card h3 { margin: 0 0 20px; font-size: 20px; }
.share-label { margin: 11px 0 4px; color: var(--ink-faint); font-size: 10px; }
.share-main,
.share-secondary { margin: 0; color: var(--green-dark); font-family: var(--number); font-size: 29px; font-weight: 780; letter-spacing: -.04em; }
.share-secondary { font-size: 23px; }
.share-highlight { margin-top: 18px; padding: 13px 0 13px 14px; border-left: 3px solid var(--green); background: var(--green-soft); }
.share-highlight p { margin: 0 0 4px; color: var(--ink-soft); font-size: 10px; }
.share-highlight strong { font-family: var(--number); font-size: 17px; }
.share-footer { margin: 24px 0 0; color: var(--ink-faint); font-size: 10px; }
.share-balance { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.share-balance p { margin: 0; color: var(--ink-soft); font-size: 11px; }
.share-balance strong { display: block; margin-top: 5px; color: var(--ink); font-family: var(--number); font-size: 17px; }
.screenshot-hint { display: none; margin: 0; color: var(--ink-faint); font-size: 11px; text-align: center; }
.screenshot-hint.is-visible { display: block; }

.consult-section { border-bottom: 0; }

.site-footer {
  padding: 24px 0 34px;
  border-top: 1px solid var(--line);
  color: var(--ink-faint);
  font-size: 10px;
  line-height: 1.7;
  text-align: center;
}

.site-footer p { margin: 4px 0; }
.company-name { opacity: .8; }

.consult-dialog {
  width: min(calc(100% - 32px), 420px);
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  box-shadow: 0 24px 70px rgba(12, 24, 17, .35);
}

.consult-dialog::backdrop { background: rgba(20, 27, 23, .56); }
.dialog-content { padding: 28px 24px 24px; }
.dialog-content h2 { margin: 0 36px 10px 0; font-size: 22px; line-height: 1.35; }
.dialog-content > p:not(.section-label):not(.qr-caption) { color: var(--ink-soft); font-size: 13px; line-height: 1.7; }
.section-label { margin: 0 0 7px; color: var(--green); font-size: 11px; font-weight: 750; }
.dialog-close { position: absolute; top: 10px; right: 10px; width: 40px; height: 40px; padding: 0; border: 0; border-radius: 50%; background: var(--surface-soft); color: var(--ink-soft); font-size: 25px; cursor: pointer; }
.qr-placeholder { display: grid; width: 168px; aspect-ratio: 1; place-content: center; margin: 22px auto 9px; border: 9px solid var(--ink); outline: 1px solid var(--line-strong); background: repeating-linear-gradient(45deg, var(--ink) 0 6px, var(--surface) 6px 12px); text-align: center; }
.qr-placeholder span,
.qr-placeholder strong { padding: 3px 7px; background: var(--surface); }
.qr-placeholder span { color: var(--ink-soft); font-size: 10px; }
.qr-placeholder strong { font-size: 13px; }
.qr-caption { margin: 0; color: var(--ink-soft); font-size: 11px; text-align: center; }

.consult-dialog.is-fallback-open { position: fixed; top: 50%; left: 50%; z-index: 40; display: block; max-height: calc(100dvh - 32px); margin: 0; overflow: auto; transform: translate(-50%, -50%); }
body.modal-fallback::before { content: ""; position: fixed; inset: 0; z-index: 35; background: rgba(20, 27, 23, .56); }

.toast { position: fixed; right: 18px; bottom: calc(18px + env(safe-area-inset-bottom)); left: 18px; z-index: 60; max-width: 480px; margin: auto; padding: 12px 15px; border-radius: 9px; background: var(--ink); color: var(--surface); font-size: 12px; line-height: 1.5; opacity: 0; pointer-events: none; transform: translateY(10px); transition: opacity 170ms ease, transform 170ms ease; }
.toast.is-visible { opacity: 1; transform: translateY(0); }

button:focus-visible,
input:focus-visible,
select:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }

@keyframes view-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

@media (prefers-reduced-motion: no-preference) {
  .result-number strong { animation: number-in 360ms cubic-bezier(.2, .75, .35, 1) both; }
}

@keyframes number-in { from { opacity: .25; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }

/* Industry selection and reusable scenario flow */
.home-view {
  display: flex;
  min-height: calc(100dvh - 92px);
  flex-direction: column;
}

.home-hero { margin-top: clamp(8px, 5vh, 42px); }
.home-hero h1 { max-width: 11em; }
.home-privacy { margin-top: auto; padding-top: 44px; }

.selection-view,
.scene-view { max-width: 560px; }

.industry-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.industry-grid > button {
  min-height: 84px;
  padding: 15px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 120ms ease;
}

.industry-grid > button:hover,
.industry-grid > button:focus-visible {
  border-color: var(--green);
  background: var(--green-soft);
}

.industry-grid > button:last-child { grid-column: 1 / -1; min-height: 68px; }
.industry-grid strong { font-size: 14px; line-height: 1.5; }

.skip-button {
  display: block;
  min-height: 44px;
  margin: 18px auto 0;
  padding: 0 12px;
  border: 0;
  background: transparent;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.scene-cards { display: grid; gap: 11px; }

.scene-card {
  display: grid;
  width: 100%;
  min-height: 104px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 17px;
  padding: 19px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 120ms ease;
}

.scene-card:hover,
.scene-card:focus-visible { border-color: var(--green); background: var(--green-soft); }
.scene-card > span { display: grid; gap: 7px; }
.scene-card strong { font-size: 16px; line-height: 1.5; }
.scene-card small { color: var(--ink-faint); font-size: 11px; line-height: 1.6; }
.scene-card > b { color: var(--green); font-size: 24px; font-weight: 500; }

.all-scenes { margin-top: 25px; border-top: 1px solid var(--line); }
.all-scenes > summary { padding: 19px 0; color: var(--green-dark); font-size: 13px; font-weight: 750; cursor: pointer; }
.all-scenes[open] > summary { margin-bottom: 3px; }

.accuracy-details {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.accuracy-details > summary {
  padding: 17px 0;
  color: var(--green-dark);
  font-size: 13px;
  font-weight: 750;
  cursor: pointer;
}

.accuracy-details > div { display: grid; gap: 22px; padding: 4px 0 22px; }
.local-note { margin: -8px 0 0; color: var(--ink-faint); font-size: 10px; line-height: 1.6; text-align: center; }

.unified-result-focus .result-explanation {
  margin: 17px 0 0;
  padding-top: 15px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 12px;
  line-height: 1.7;
}

.quick-reminder,
.key-number,
.second-step,
.source-question,
.data-note {
  margin-top: 14px;
  padding: 23px 20px;
  border-radius: var(--radius);
}

.quick-reminder { background: var(--surface-accent); }
.quick-reminder > p,
.key-number > p,
.second-step > p {
  margin: 0 0 8px;
  color: var(--green);
  font-size: 11px;
  font-weight: 750;
}

.quick-reminder > strong { display: block; font-size: 14px; line-height: 1.75; }

.key-number {
  border: 1px solid var(--line);
  background: var(--surface);
}

.key-number h2 { margin: 0 0 7px; font-size: 20px; letter-spacing: -.025em; }
.key-number > strong { display: block; color: var(--ink-soft); font-size: 12px; font-weight: 600; line-height: 1.65; }

.second-step {
  padding-right: 0;
  padding-left: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
}

.second-step .secondary-button { text-align: left; }
.second-step #secondStepResult { margin-top: 14px; padding: 17px 0 17px 15px; border-left: 3px solid var(--green); }
.second-step #secondStepResult span { display: block; color: var(--ink-soft); font-size: 11px; }
.second-step #secondStepResult strong { display: block; margin-top: 4px; color: var(--green-dark); font-family: var(--number); font-size: 25px; }

.source-question {
  padding-right: 0;
  padding-left: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
}

.source-question h2 { margin: 0 0 14px; font-size: 19px; letter-spacing: -.025em; }
.source-options > button {
  min-height: 44px;
  padding: 0 13px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.source-options > button.is-selected { border-color: var(--green); background: var(--green-soft); color: var(--green-dark); }
.source-question .source-feedback { margin-top: 14px; padding-left: 13px; border-left: 3px solid var(--green); color: var(--ink-soft); font-size: 12px; line-height: 1.7; }
.source-question .source-feedback:empty { display: none; }

.data-note {
  padding-right: 0;
  padding-left: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
}

.data-note > summary { color: var(--ink-faint); font-size: 12px; font-weight: 700; cursor: pointer; }
.data-note > div { padding-top: 11px; }
.data-note p { margin: 6px 0; color: var(--ink-faint); font-size: 10px; line-height: 1.7; }
.balance-actions { margin-top: 24px; }

@media (max-width: 420px) {
  .industry-grid { grid-template-columns: 1fr 1fr; }
  .industry-grid > button { min-height: 76px; padding: 13px; }
  .industry-grid strong { font-size: 13px; }
  .scene-card { min-height: 96px; padding: 17px 15px; }
  .scene-card strong { font-size: 15px; }
}

@media (min-width: 620px) {
  .app-shell { padding-right: 32px; padding-left: 32px; }
  .view:not(.home-view) { padding-top: 34px; }
}

@media (max-width: 430px) {
  .target-rate-options { grid-template-columns: 1fr; }
  .target-rate-button { min-height: 48px; grid-template-columns: auto auto; align-items: center; gap: 8px; }
  .target-rate-button small { min-height: 0; }
  .cost-discovery > button { grid-template-columns: 1fr; gap: 9px; }
  .cost-discovery > button b { justify-self: start; }
}

@media (max-width: 360px) {
  .app-shell { padding-right: 16px; padding-left: 16px; }
  .home-hero h1 { font-size: 31px; }
  .example-result strong { font-size: 24px; }
  .result-number strong { font-size: 48px; }
  .mode-option { padding: 0 11px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
  .site-footer,
  .back-button,
  .secondary-button,
  .text-button,
  .small-actions,
  .consult-dialog,
  .toast { display: none !important; }
  .app-shell { width: 100%; max-width: 560px; }
  .share-card { display: block; }
}