:root {
  --bg: #f7f1e7;
  --bg-2: #fbf7ef;
  --card: #fffdf8;
  --card-2: #fffaf1;
  --text: #2f261d;
  --muted: #75695d;
  --line: #e4d7c3;
  --line-strong: #d4bd95;
  --accent: #b78a3b;
  --accent-dark: #8f6726;
  --accent-soft: #f2dfb8;
  --danger: #9f2d2d;
  --success-soft: #f5ead0;
  --shadow: 0 18px 48px rgba(67, 48, 25, 0.10);
  --shadow-soft: 0 10px 28px rgba(67, 48, 25, 0.07);
  --radius-xl: 30px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 14% 4%, rgba(183, 138, 59, 0.16), transparent 28%),
    radial-gradient(circle at 86% 12%, rgba(183, 138, 59, 0.10), transparent 24%),
    linear-gradient(180deg, var(--bg-2) 0%, var(--bg) 100%);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(183, 138, 59, 0.35);
  outline-offset: 3px;
}

.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.language-screen {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  place-items: center;
  padding: 28px 0;
}

.language-card,
.calculator-card,
.result-card,
.checklist-card,
.partner-card {
  background: rgba(255, 253, 248, 0.94);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(6px);
}

.language-card {
  width: min(620px, 100%);
  padding: clamp(26px, 5vw, 46px);
  text-align: center;
}

.brand-mark {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: linear-gradient(145deg, var(--accent), var(--accent-dark));
  font-weight: 850;
  letter-spacing: 0.05em;
  box-shadow: 0 10px 24px rgba(143, 103, 38, 0.22);
}

.language-card h1,
.hero h2 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 5vw, 3.75rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.language-card p,
.hero p,
.section-heading p,
.partner-card p,
.footer p {
  color: var(--muted);
  line-height: 1.6;
}

.language-actions,
.result-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

.btn {
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  min-height: 48px;
  font-weight: 800;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  user-select: none;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: #fff;
  background: linear-gradient(145deg, var(--accent), var(--accent-dark));
  box-shadow: 0 10px 22px rgba(143, 103, 38, 0.20);
}

.btn-secondary {
  color: var(--text);
  background: var(--accent-soft);
}

.btn-wide {
  width: 100%;
  margin-top: 8px;
}

.app {
  padding: 24px 0 34px;
}

.hero {
  display: grid;
  gap: 16px;
  align-items: center;
  padding: clamp(24px, 5vw, 52px) 0 22px;
}

.hero p {
  max-width: 780px;
  font-size: clamp(1rem, 2vw, 1.15rem);
}

.hero-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.hero-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent-dark);
  background: rgba(255, 250, 241, 0.88);
  font-size: 0.88rem;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.8rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calculator-card,
.result-card,
.checklist-card,
.partner-card {
  padding: clamp(18px, 3vw, 28px);
  margin: 18px 0;
}

.section-heading {
  display: grid;
  gap: 6px;
  margin-bottom: 6px;
}

.section-heading h3,
.result-card h3,
.checklist-card h3,
.partner-card h3 {
  margin: 0;
  font-size: clamp(1.4rem, 3vw, 2.05rem);
  line-height: 1.12;
  letter-spacing: -0.035em;
}

.section-heading p {
  margin: 0;
}

.field-group {
  border: 0;
  padding: 0;
  margin: 22px 0;
}

.field-group legend,
.field-group label {
  display: block;
  margin-bottom: 10px;
  font-weight: 850;
}

.choice-grid,
.format-grid,
.checkbox-grid {
  display: grid;
  gap: 10px;
}

.choice-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.format-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.choice-btn,
.format-card {
  min-height: 54px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--card-2);
  text-align: left;
  box-shadow: var(--shadow-soft);
}

.choice-btn {
  display: grid;
  place-items: center;
  text-align: center;
  font-weight: 800;
  line-height: 1.2;
}

.format-card {
  display: grid;
  gap: 8px;
  align-content: start;
}

.format-card strong {
  font-size: 1.02rem;
}

.format-card span {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.choice-btn.is-active,
.format-card.is-active {
  border-color: var(--accent);
  background: #fff3d5;
  box-shadow:
    inset 0 0 0 1px var(--accent),
    0 10px 24px rgba(143, 103, 38, 0.10);
}

input[type="number"] {
  width: 100%;
  min-height: 56px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--text);
  background: var(--card-2);
  outline: none;
  box-shadow: var(--shadow-soft);
}

input[type="number"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(183, 138, 59, 0.16);
}

.checkbox-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.checkbox-grid label {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card-2);
  font-weight: 720;
  line-height: 1.25;
  box-shadow: var(--shadow-soft);
}

.checkbox-grid input {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.form-error {
  min-height: 22px;
  color: var(--danger);
  font-weight: 800;
  line-height: 1.45;
}

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

.result-summary div,
.budget-total,
.breakdown,
.notice,
.tip,
.checklist-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--card-2);
}

.result-summary div {
  padding: 14px;
  min-width: 0;
  line-height: 1.45;
}

.result-summary strong {
  word-break: break-word;
}

.budget-total {
  display: grid;
  gap: 8px;
  margin: 16px 0;
  padding: clamp(18px, 3vw, 24px);
  background:
    radial-gradient(circle at top right, rgba(183, 138, 59, 0.16), transparent 32%),
    #fff5dc;
  border-color: var(--line-strong);
}

.budget-total span {
  color: var(--accent-dark);
  font-weight: 850;
}

.budget-total strong {
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.budget-total small {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.45;
}

.breakdown {
  padding: clamp(16px, 3vw, 20px);
}

.breakdown h4 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.breakdown-list {
  display: grid;
  gap: 0;
}

.breakdown-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.breakdown-row:last-child {
  border-bottom: 0;
}

.breakdown-row span {
  color: var(--muted);
  line-height: 1.35;
}

.breakdown-row strong {
  text-align: right;
  white-space: nowrap;
}

.notice,
.tip {
  padding: 16px;
  line-height: 1.6;
}

.notice {
  color: var(--muted);
}

.tip {
  background: var(--success-soft);
}

.checklist-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.checklist-grid article {
  padding: 18px;
}

.checklist-grid h4 {
  margin: 0 0 10px;
}

.checklist-grid ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.7;
}

.partner-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
}

.partner-card p {
  margin: 10px 0 0;
}

.footer {
  padding: 24px 0 34px;
  color: var(--muted);
  text-align: center;
}

.footer strong {
  color: var(--text);
}

.is-hidden {
  display: none !important;
}

@media (min-width: 980px) {
  .calculator-card {
    padding: 32px;
  }

  .result-card {
    padding: 32px;
  }
}

@media (max-width: 900px) {
  .choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .format-grid,
  .checklist-grid {
    grid-template-columns: 1fr;
  }

  .partner-card {
    grid-template-columns: 1fr;
  }

  .partner-card .btn {
    width: fit-content;
  }
}

@media (max-width: 640px) {
  .page {
    width: min(100% - 22px, 1120px);
  }

  .language-screen {
    align-items: start;
    padding-top: 22px;
  }

  .language-card,
  .calculator-card,
  .result-card,
  .checklist-card,
  .partner-card {
    border-radius: 22px;
  }

  .language-card {
    margin-top: 16px;
  }

  .language-card h1,
  .hero h2 {
    letter-spacing: -0.035em;
  }

  .hero {
    padding-top: 20px;
  }

  .hero-badges {
    gap: 8px;
  }

  .hero-badges span {
    font-size: 0.82rem;
    padding: 6px 10px;
  }

  .choice-grid,
  .checkbox-grid,
  .result-summary {
    grid-template-columns: 1fr;
  }

  .choice-btn,
  .format-card,
  .checkbox-grid label {
    min-height: 50px;
  }

  .format-card span {
    font-size: 0.9rem;
  }

  .language-actions,
  .result-actions {
    flex-direction: column;
  }

  .btn,
  .partner-card .btn {
    width: 100%;
  }

  .result-actions {
    gap: 10px;
  }

  .breakdown-row {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 11px 0;
  }

  .breakdown-row strong {
    text-align: left;
    white-space: normal;
  }
}

@media (max-width: 390px) {
  .page {
    width: min(100% - 16px, 1120px);
  }

  .language-card,
  .calculator-card,
  .result-card,
  .checklist-card,
  .partner-card {
    padding: 16px;
  }

  .btn {
    padding-left: 16px;
    padding-right: 16px;
  }

  .budget-total strong {
    font-size: 1.6rem;
  }
}

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

  .btn {
    transition: none;
  }
}


/* v9 visual upgrade */
body {
  background:
    radial-gradient(circle at 10% 2%, rgba(216,181,111,.30), transparent 30%),
    radial-gradient(circle at 90% 8%, rgba(186,135,50,.14), transparent 28%),
    linear-gradient(180deg, #fffaf2 0%, #f6efe4 48%, #f2e7d8 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .42;
  background-image:
    linear-gradient(rgba(128,89,30,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(128,89,30,.032) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(180deg, #000 0%, transparent 80%);
}

.language-card,
.calculator-card,
.result-card,
.checklist-card,
.partner-card,
.hero-preview {
  background: linear-gradient(180deg, rgba(255,253,248,.97), rgba(255,250,241,.94));
  border: 1px solid rgba(228,212,187,.96);
  box-shadow: 0 22px 60px rgba(67,48,25,.12);
}

.language-card {
  position: relative;
  overflow: hidden;
}

.language-card::before,
.language-card::after {
  content: "";
  position: absolute;
  width: 190px;
  height: 190px;
  border: 1px solid rgba(186,135,50,.16);
  border-radius: 50%;
  pointer-events: none;
}

.language-card::before {
  left: -94px;
  top: -86px;
}

.language-card::after {
  right: -94px;
  bottom: -94px;
}

.brand-mark {
  background:
    radial-gradient(circle at 32% 25%, rgba(255,255,255,.26), transparent 26%),
    linear-gradient(145deg, #d8b56f, #80591e);
  box-shadow: 0 18px 36px rgba(146,100,31,.20);
}

.hero {
  grid-template-columns: minmax(0,1.15fr) minmax(300px,.85fr);
  gap: clamp(18px,4vw,36px);
}

.hero-copy {
  min-width: 0;
}

.hero-preview {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 14px;
  padding: clamp(20px,4vw,28px);
  border-color: rgba(210,183,127,.82);
  background:
    radial-gradient(circle at top right, rgba(216,181,111,.34), transparent 32%),
    linear-gradient(145deg, rgba(255,252,246,.98), rgba(255,241,213,.92));
}

.preview-label {
  margin: 0;
  color: #80591e !important;
  font-size: .82rem;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.hero-preview strong {
  font-size: clamp(2rem,4vw,3rem);
  line-height: 1.02;
  letter-spacing: -.05em;
}

.preview-lines {
  display: grid;
  gap: 8px;
}

.preview-lines span {
  display: block;
  padding: 10px 12px;
  border: 1px solid rgba(228,212,187,.85);
  border-radius: 14px;
  color: var(--muted);
  background: rgba(255,253,248,.74);
  font-weight: 750;
  line-height: 1.35;
}

.choice-btn,
.format-card,
.checkbox-grid label,
input[type="number"] {
  background: linear-gradient(180deg, rgba(255,253,248,.96), rgba(255,248,238,.96));
  box-shadow: 0 12px 30px rgba(67,48,25,.08);
}

.choice-btn.is-active,
.format-card.is-active {
  background:
    radial-gradient(circle at top right, rgba(216,181,111,.24), transparent 36%),
    #fff3d5;
  box-shadow:
    inset 0 0 0 1px var(--accent),
    0 12px 26px rgba(143,103,38,.12);
}

.result-topline {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 16px;
  margin-bottom: 14px;
}

.result-pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 13px;
  border-radius: 999px;
  color: #80591e;
  background: #f4dfb8;
  font-weight: 900;
  white-space: nowrap;
}

.budget-total {
  background:
    radial-gradient(circle at top right, rgba(216,181,111,.34), transparent 34%),
    linear-gradient(145deg, #fff7df, #fff1cd);
  box-shadow: 0 18px 36px rgba(146,100,31,.18);
}

.partner-card {
  position: relative;
  background:
    radial-gradient(circle at 86% 12%, rgba(216,181,111,.32), transparent 28%),
    linear-gradient(145deg, rgba(255,253,248,.98), rgba(255,243,220,.95));
}

.partner-pattern {
  position: absolute;
  inset: auto -90px -110px auto;
  width: 260px;
  height: 260px;
  border: 1px solid rgba(186,135,50,.18);
  border-radius: 50%;
  pointer-events: none;
}

.partner-pattern::before,
.partner-pattern::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(186,135,50,.14);
  border-radius: 50%;
}

.partner-pattern::before { inset: 28px; }
.partner-pattern::after { inset: 58px; }

.btn-primary {
  background:
    radial-gradient(circle at 28% 20%, rgba(255,255,255,.22), transparent 26%),
    linear-gradient(145deg, #d8b56f, #80591e);
  box-shadow: 0 18px 36px rgba(146,100,31,.20);
}

@media (max-width: 940px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .hero-preview {
    max-width: 620px;
  }
}

@media (max-width: 640px) {
  .result-topline {
    display: grid;
  }
  .result-pill {
    width: fit-content;
  }
}

@media (max-width: 390px) {
  .budget-total strong,
  .hero-preview strong {
    font-size: 1.7rem;
  }
}


/* v10 compact navigation upgrade */
.app {
  padding-top: 14px;
}

.hero {
  padding-top: clamp(16px, 3vw, 32px);
  padding-bottom: 10px;
  gap: clamp(14px, 3vw, 26px);
}

.hero h2 {
  max-width: 780px;
}

.hero p {
  margin-top: 8px;
  margin-bottom: 0;
}

.hero-badges {
  margin-top: 12px;
}

.hero-preview-compact {
  padding: clamp(16px, 3vw, 22px);
  gap: 10px;
}

.hero-preview-compact strong {
  font-size: clamp(1.65rem, 3.2vw, 2.45rem);
}

.preview-lines {
  gap: 6px;
}

.preview-lines span {
  padding: 8px 10px;
  font-size: .92rem;
}

.quick-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  margin: 4px 0 14px;
  padding: 8px;
  border: 1px solid rgba(228, 212, 187, .92);
  border-radius: 999px;
  background: rgba(255, 253, 248, .86);
  box-shadow: 0 14px 34px rgba(67,48,25,.10);
  backdrop-filter: blur(10px);
}

.quick-nav a {
  display: grid;
  place-items: center;
  min-height: 42px;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--text);
  text-decoration: none;
  font-weight: 850;
  line-height: 1.15;
  background: transparent;
  transition: background .18s ease, transform .18s ease, color .18s ease;
}

.quick-nav a:hover {
  transform: translateY(-1px);
  color: #80591e;
  background: #f4dfb8;
}

.calculator-card,
.result-card,
.checklist-card,
.partner-card {
  margin-top: 12px;
  margin-bottom: 14px;
}

.field-group {
  margin: 18px 0;
}

.section-heading {
  margin-bottom: 2px;
}

.choice-grid,
.format-grid,
.checkbox-grid {
  gap: 8px;
}

.choice-btn,
.format-card,
.checkbox-grid label {
  min-height: 50px;
}

.format-card {
  gap: 6px;
}

.format-card span {
  line-height: 1.36;
}

.result-summary {
  gap: 8px;
}

.budget-total {
  margin: 12px 0;
}

.breakdown-row {
  padding: 10px 0;
}

.checklist-grid {
  gap: 10px;
}

.checklist-grid article {
  padding: 15px;
}

.partner-card {
  gap: 14px;
}

.footer {
  padding-top: 14px;
}

@media (min-width: 941px) {
  .hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(260px, .65fr);
  }
}

@media (max-width: 940px) {
  .quick-nav {
    position: sticky;
    top: 0;
    border-radius: 24px;
  }
}

@media (max-width: 640px) {
  .app {
    padding-top: 10px;
  }

  .hero {
    padding-top: 10px;
    padding-bottom: 6px;
  }

  .hero-preview {
    display: none;
  }

  .quick-nav {
    grid-template-columns: 1fr;
    border-radius: 20px;
    margin-bottom: 10px;
  }

  .quick-nav a {
    min-height: 40px;
  }

  .calculator-card,
  .result-card,
  .checklist-card,
  .partner-card {
    margin-top: 10px;
    margin-bottom: 10px;
  }

  .field-group {
    margin: 15px 0;
  }

  .language-card,
  .calculator-card,
  .result-card,
  .checklist-card,
  .partner-card {
    padding: 16px;
  }
}


/* v11 price precision */
.advanced-panel {
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, rgba(216,181,111,.18), transparent 34%),
    rgba(255, 250, 241, .82);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.advanced-panel summary {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.advanced-panel summary::-webkit-details-marker {
  display: none;
}

.advanced-panel summary span {
  color: var(--text);
  font-weight: 900;
}

.advanced-panel summary small {
  color: var(--muted);
  line-height: 1.45;
}

.advanced-panel[open] summary {
  border-bottom: 1px solid var(--line);
}

.advanced-content {
  display: grid;
  gap: 16px;
  padding: 16px;
}

.advanced-section {
  display: grid;
  gap: 12px;
}

.advanced-section h4 {
  margin: 0;
  font-size: 1rem;
  letter-spacing: -.02em;
}

.advanced-hint {
  margin: -4px 0 0;
  color: var(--muted);
  font-size: .92rem;
  line-height: 1.45;
}

.advanced-group {
  margin: 0;
  padding: 0;
  border: 0;
}

.advanced-group legend {
  margin-bottom: 8px;
  font-weight: 850;
}

.mini-choice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.mini-choice {
  min-height: 42px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: 14px;
  color: var(--text);
  background: linear-gradient(180deg, rgba(255,253,248,.96), rgba(255,248,238,.96));
  font-weight: 800;
  line-height: 1.18;
  box-shadow: 0 8px 20px rgba(67,48,25,.06);
}

.mini-choice.is-active {
  border-color: var(--accent);
  background:
    radial-gradient(circle at top right, rgba(216,181,111,.22), transparent 36%),
    #fff3d5;
  box-shadow:
    inset 0 0 0 1px var(--accent),
    0 10px 22px rgba(143,103,38,.10);
}

@media (max-width: 760px) {
  .mini-choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .advanced-content {
    padding: 14px;
  }
}

@media (max-width: 390px) {
  .mini-choice-grid {
    grid-template-columns: 1fr;
  }
}