body { min-height: 100vh; }
.tool-shell, .settings-shell { width: min(1120px, calc(100% - 28px)); margin: 0 auto; padding: max(14px, env(safe-area-inset-top)) 0 max(36px, env(safe-area-inset-bottom)); }
.utility-bar, .settings-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 52px; }
.back-link { color: var(--blue-dark); font-weight: 750; text-decoration: none; padding: 10px 2px; }
.tool-brand { text-align: center; padding: 18px 0 26px; }
.tool-logo, .client-logo { display: block; width: min(250px, 65vw); height: auto; max-height: 170px; object-fit: contain; margin: 0 auto 8px; }
.tool-logo-fallback, .client-logo-fallback { color: var(--blue); font-size: 1.3rem; font-weight: 800; margin: 34px auto 22px; }
.tool-brand h1, .client-brand h1 { margin: 0; font-size: clamp(1.65rem, 7vw, 2.65rem); line-height: 1.1; letter-spacing: -.025em; }
.calculator-layout { display: grid; gap: 16px; }
.form-flow { display: grid; gap: 14px; min-width: 0; }
.card { min-width: 0; border: 1px solid rgba(66,114,180,.14); border-radius: var(--radius); background: rgba(255,255,255,.97); box-shadow: var(--shadow); padding: 20px; }
.step-card { display: grid; grid-template-columns: 34px minmax(0,1fr); gap: 12px; }
.step-tag { display: grid; place-items: center; align-self: start; width: 30px; height: 30px; border-radius: 50%; background: var(--blue-soft); color: var(--blue-dark); font-size: .82rem; font-weight: 900; }
.step-body { min-width: 0; }
label, .field-label { display: block; color: var(--ink); font-weight: 750; }
input[type="text"], input[type="number"], input:not([type]), select, textarea { width: 100%; min-height: 48px; margin-top: 8px; border: 1px solid #b9cbd9; border-radius: 11px; background: #fff; color: var(--ink); padding: 11px 12px; }
textarea { min-height: 230px; resize: vertical; line-height: 1.45; }
input[type="checkbox"], input[type="radio"] { width: 21px; height: 21px; margin: 1px 9px 0 0; accent-color: var(--blue); flex: 0 0 auto; }
.helper { margin: 8px 0 0; color: var(--muted); font-size: .87rem; }
.choice-stack { display: grid; gap: 10px; margin-top: 10px; }
.choice-tile { display: flex; gap: 4px; align-items: flex-start; min-height: 64px; padding: 13px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdff; }
.choice-tile:has(input:checked) { border-color: var(--blue); background: var(--blue-soft); }
.choice-tile span { display: grid; gap: 3px; }
.choice-tile small { color: var(--muted); font-weight: 450; }
.nested-panel, .reference-box { margin-top: 14px; padding: 14px; border-radius: 12px; background: #f7fafc; }
.internal-note { color: #765b1f; margin: 8px 0 0; font-size: .86rem; font-weight: 700; }
.reference-box { color: var(--blue-dark); border-left: 3px solid var(--cyan); font-size: .9rem; font-weight: 700; }
.money-field { display: grid; grid-template-columns: 42px minmax(0,1fr); margin-top: 8px; }
.money-field span { display: grid; place-items: center; min-height: 48px; border: 1px solid #b9cbd9; border-right: 0; border-radius: 11px 0 0 11px; background: #eef4f8; font-weight: 800; }
.money-field input { margin: 0 !important; border-radius: 0 11px 11px 0 !important; }
.price-card { background: linear-gradient(145deg, #eef8fc, #fff); }
.hero-price { display: block; margin-top: 5px; color: var(--blue-dark); font-size: clamp(2rem, 10vw, 3.2rem); line-height: 1.05; letter-spacing: -.035em; }
.extra-card { margin-top: 12px; padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdff; }
.extra-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.extra-heading > span { display: flex; align-items: flex-start; }
.extra-heading > strong { color: var(--blue-dark); white-space: nowrap; }
.status-wrap { margin-top: 10px; font-size: .86rem; }
.status-wrap select { margin-top: 5px; }
.summary-column { min-width: 0; display: grid; align-content: start; gap: 14px; }
.summary-card h2, .share-card h2, .settings-view h1, .settings-view h2 { margin: 4px 0 14px; line-height: 1.2; }
.summary-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; padding: 11px 0; border-bottom: 1px solid #e7eef3; }
.summary-row > div:first-child { min-width: 0; }
.summary-value { flex: 0 0 auto; text-align: right; font-weight: 800; }
.summary-subtext { color: var(--muted); font-size: .78rem; }
.summary-status { display: inline-block; margin-top: 4px; padding: 2px 7px; border-radius: 99px; background: var(--blue-soft); color: var(--blue-dark); font-size: .72rem; font-weight: 800; }
.summary-total { padding-top: 17px; font-size: 1.05rem; }
.remaining-row { color: var(--blue-dark); font-size: 1.14rem; border: 0; }
.empty-state { color: var(--muted); padding: 22px 0; text-align: center; }
.validation-box { margin: 12px 0; padding: 13px 15px; border: 1px solid #efb0ad; border-radius: 11px; background: var(--danger-bg); color: #832d29; }
.validation-box ul { margin: 0; padding-left: 20px; }
.notice { margin: 0 0 14px; padding: 13px 15px; border-radius: 11px; }
.notice.warning { color: var(--warning); background: var(--warning-bg); }
.notice.info { color: var(--blue-dark); background: var(--blue-soft); }
.action-stack { display: grid; gap: 9px; margin-top: 18px; }
.button { min-height: 46px; border: 1px solid transparent; border-radius: 11px; padding: 11px 15px; font-weight: 800; }
.button:disabled { opacity: .45; cursor: not-allowed; }
.button-primary { color: #fff; background: var(--blue); }
.button-secondary { color: var(--blue-dark); border-color: #a9c3d9; background: #fff; }
.button-quiet { color: var(--blue-dark); background: var(--blue-soft); }
.button-danger { color: var(--danger); border-color: #e7b6b3; background: #fff; }
.copy-row { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin-top: 12px; }
.copy-status { color: var(--success); font-weight: 750; }

.client-view { min-height: 100vh; padding: max(18px, env(safe-area-inset-top)) 14px max(24px, env(safe-area-inset-bottom)); background: #eef4f8; }
.client-sheet { width: min(760px, 100%); margin: 0 auto; padding: clamp(20px, 5vw, 46px); border-radius: 20px; background: #fff; box-shadow: var(--shadow); }
.client-brand { text-align: center; padding-bottom: 18px; border-bottom: 2px solid var(--blue-soft); }
.client-toolbar { display: flex; flex-wrap: wrap; gap: 9px; justify-content: center; margin: 18px 0; }
.client-toolbar .button { flex: 1 1 180px; }
.client-section { margin-top: 22px; }
.client-section-title { margin-bottom: 4px; color: var(--blue); font-size: .76rem; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.client-row { display: flex; justify-content: space-between; gap: 14px; padding: 13px 0; border-bottom: 1px solid var(--line); }
.client-row-title { font-weight: 750; }
.client-note, .client-included { margin-top: 3px; color: var(--muted); font-size: .82rem; }
.client-included { color: var(--blue-dark); font-weight: 750; }
.client-price { flex: 0 0 auto; font-weight: 850; }
.client-total-row { margin-top: 4px; font-size: 1.08rem; }
.client-balance-row { margin-top: 7px; padding: 16px 13px; border: 0; border-radius: 12px; background: var(--blue-soft); color: var(--blue-dark); font-size: 1.15rem; }
.quotation-note { margin: 24px 0 0; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.client-closing { color: var(--ink); font-weight: 650; }
.clean-exit { position: fixed; z-index: 20; top: max(10px, env(safe-area-inset-top)); right: max(10px, env(safe-area-inset-right)); min-height: 44px; padding: 9px 12px; border: 1px solid #abc5d9; border-radius: 10px; color: var(--blue-dark); background: rgba(255,255,255,.94); box-shadow: 0 4px 16px rgba(31,70,103,.12); font-weight: 800; }
.clean-exit.auto-hidden { display: none !important; }
body.clean-mode .client-view { padding: 0; background: #fff; }
body.clean-mode .client-sheet { border-radius: 0; box-shadow: none; }
body.clean-mode .client-toolbar { display: none !important; }

.settings-view { min-height: 100vh; }
.settings-list { display: grid; gap: 10px; }
.material-setting { padding: 14px; border: 1px solid var(--line); border-radius: 12px; background: #fbfdff; }
.material-setting h3 { margin: 0 0 10px; font-size: 1rem; }
.settings-grid { display: grid; gap: 12px; }
.settings-actions { display: grid; gap: 10px; margin-top: 22px; }

@media (min-width: 760px) {
  .tool-shell { padding-top: 22px; }
  .step-card { grid-template-columns: 42px minmax(0,1fr); padding: 24px; }
  .choice-stack { grid-template-columns: 1fr 1fr; }
  .settings-grid { grid-template-columns: 1fr 1fr; }
  .settings-actions { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 980px) {
  .calculator-layout { grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr); gap: 22px; align-items: start; }
  .summary-column { position: sticky; top: 14px; }
}

@media print {
  @page { margin: 14mm 13mm; }
  body { background: #fff !important; }
  #calculatorView, #settingsView, .no-print, .clean-exit { display: none !important; }
  #clientView { display: block !important; padding: 0 !important; background: #fff !important; }
  .client-sheet { width: 100% !important; padding: 0 !important; border-radius: 0 !important; box-shadow: none !important; }
  .client-section, .quotation-note { page-break-inside: avoid; }
}