/* ============================================================
   LUMIÈRE — Apple Minimalism Restyle
   Clean, premium, generous whitespace — apple.com luxury feel
   ============================================================ */

:root {
  --bg: #FAFAFA;
  --bg-alt: #F5F5F7;
  --bg-dark: #1D1D1F;
  --text: #1D1D1F;
  --text-secondary: #86868B;
  --text-muted: #6E6E73;
  --accent: #B8860B;
  --accent-light: #D4A843;
  --border: rgba(0, 0, 0, 0.08);
  --border-subtle: rgba(0, 0, 0, 0.04);
  --white: #FFFFFF;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 17px;
  line-height: 1.47;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-weight: 400;
}

/* ── NAV ── */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 60px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(250, 250, 250, 0.88);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
}

.nav-lang {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.lang-switch {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
  font-weight: 400;
}

.lang-switch:hover, .lang-switch.active {
  color: var(--text);
}

.lang-sep {
  color: var(--border);
  font-weight: 300;
}

.nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
  margin-left: auto;
  margin-right: 32px;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text);
}

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 60px 80px;
  background: var(--white);
}

.hero-eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.hero-headline {
  font-size: clamp(2.8rem, 5.5vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.06;
  color: var(--text);
  margin-bottom: 24px;
  max-width: 840px;
}

.hero-headline em {
  font-style: normal;
  color: var(--accent);
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 48px;
  max-width: 560px;
}

.hero-actions {
  display: flex;
  gap: 32px;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  display: inline-block;
  padding: 14px 28px;
  background: var(--text);
  color: var(--white);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: 980px;
  transition: background 0.2s, transform 0.2s;
}

.btn-primary:hover {
  background: #2a2a2e;
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-block;
  color: var(--text-secondary);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s;
  font-weight: 400;
}

.btn-ghost:hover {
  color: var(--text);
}

/* ── PROOF BAR ── */
.proof-bar {
  background: var(--bg-alt);
  padding: 64px 60px;
}

.proof-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 64px;
  max-width: 960px;
  margin: 0 auto;
}

.proof-item {
  text-align: center;
}

.proof-stat {
  font-size: 3rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
  margin-bottom: 8px;
}

.proof-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
  max-width: 180px;
}

.proof-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* ── SECTION SHARED ── */
.section-eyebrow {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-headline {
  font-size: clamp(1.9rem, 3vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--text);
  margin-bottom: 24px;
}

.section-body {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.section-body em {
  font-style: italic;
  color: var(--text);
}

.highlight-box {
  background: var(--bg-alt);
  padding: 20px 24px;
  border-radius: 12px;
  color: var(--text);
  font-weight: 500;
  font-size: 1rem;
  line-height: 1.6;
  margin-top: 8px;
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* ── PROBLEM ── */
.problem {
  padding: 120px 60px;
  background: var(--white);
}

.problem-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 96px;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
}

.problem-text {
  max-width: 480px;
}

.problem-diagram {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.diagram-block {
  background: var(--bg-alt);
  border-radius: 16px;
  padding: 20px 24px;
}

.diagram-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.diagram-query {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.5;
  font-style: italic;
}

.diagram-signals {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.signal-item {
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: var(--white);
  padding: 8px 12px;
  border-radius: 8px;
  text-align: center;
}

.diagram-winner {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.diagram-win {
  background: var(--white);
  border: 1px solid var(--border);
}

.diagram-arrow {
  display: flex;
  justify-content: center;
  color: var(--border);
  padding: 4px 0;
}

.diagram-arrow svg {
  opacity: 0.4;
}

/* ── OFFRES ── */
.offres {
  padding: 120px 60px;
  background: var(--bg-alt);
}

.offres .section-headline {
  color: var(--text);
}

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

.offer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 1060px;
  margin: 0 auto;
}

.offer-card {
  background: var(--white);
  border-radius: 20px;
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease;
}

.offer-card:hover {
  transform: translateY(-4px);
}

.offer-card-featured {
  background: var(--text);
  color: var(--white);
}

.offer-card-featured .offer-name,
.offer-card-featured .offer-price,
.offer-card-featured .offer-desc,
.offer-card-featured .offer-features li,
.offer-card-featured .offer-note {
  color: var(--white);
}

.offer-card-featured .offer-features li::before {
  border-color: rgba(255, 255, 255, 0.5);
}

.offer-card-featured .offer-tag {
  color: var(--accent-light);
}

.offer-card-featured .offer-note {
  color: rgba(255, 255, 255, 0.6);
  border-top-color: rgba(255, 255, 255, 0.1);
}

.offer-tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.offer-name {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 14px;
  line-height: 1.2;
}

.offer-price {
  margin-bottom: 18px;
}

.price-currency {
  font-size: 1.1rem;
  color: var(--accent);
  font-weight: 500;
}

.price-value {
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--text);
  line-height: 1;
}

.price-range {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.price-period {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.offer-desc {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 24px;
  flex-grow: 1;
}

.offer-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.offer-features li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  padding-left: 22px;
  position: relative;
  line-height: 1.5;
}

.offer-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 7px;
  height: 7px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
}

.offer-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  border-top: 1px solid var(--border);
  padding-top: 16px;
  margin-top: auto;
}

.offres-cta {
  text-align: center;
  margin-top: 48px;
}

.offres-note {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.7;
}

/* ── METHODE ── */
.methode {
  padding: 120px 60px;
  background: var(--white);
}

.methode-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  max-width: 1040px;
  margin: 0 auto;
}

.methode-step {
  display: flex;
  gap: 24px;
}

.step-number {
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--accent);
  line-height: 1;
  flex: 0 0 40px;
}

.step-content {
  flex: 1;
}

.step-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.3;
}

.step-body {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── AUDIT ── */
.audit {
  padding: 120px 60px;
  background: var(--bg-alt);
}

.audit-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1120px;
  margin: 0 auto;
}

.audit-report {
  background: var(--bg-dark);
  border-radius: 20px;
  padding: 40px 36px;
}

.report-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 28px;
}

.report-logo {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: -0.01em;
}

.report-type {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  font-weight: 500;
}

.report-property {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.report-property-name {
  font-size: 1.2rem;
  color: var(--white);
  font-style: italic;
  margin-bottom: 4px;
}

.report-property-tag {
  font-size: 0.8rem;
  color: var(--accent-light);
}

.report-score {
  margin-bottom: 24px;
}

.score-label {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 8px;
}

.score-number {
  font-size: 3.5rem;
  font-weight: 600;
  color: var(--accent-light);
  line-height: 1;
  display: inline;
  letter-spacing: -0.03em;
}

.score-max {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.3);
  margin-left: 4px;
}

.score-bar {
  width: 100%;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  margin-top: 12px;
  overflow: hidden;
}

.score-fill {
  height: 100%;
  background: var(--accent-light);
  border-radius: 2px;
}

.report-findings {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 24px;
}

.finding {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  padding: 10px 14px;
  border-radius: 10px;
}

.finding-positive {
  background: rgba(184, 134, 11, 0.15);
  color: rgba(255, 255, 255, 0.85);
}

.finding-negative {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.45);
}

.finding-icon {
  font-size: 0.65rem;
  width: 12px;
}

.report-cta {
  font-size: 0.85rem;
  color: var(--accent-light);
  text-align: right;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.audit-text .section-headline {
  margin-bottom: 20px;
}

.audit-form {
  margin-top: 36px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.form-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-field input {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: var(--white);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}

.form-field input::placeholder {
  color: var(--text-muted);
}

.form-field input:focus {
  border-color: var(--accent);
}

.form-submit {
  margin-top: 4px;
}

.form-submit button {
  width: 100%;
  padding: 16px 24px;
  background: var(--text);
  color: var(--white);
  border: none;
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s;
}

.form-submit button:hover {
  background: #2a2a2e;
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
}

/* ── CLOSING ── */
.closing {
  padding: 120px 60px;
  background: var(--bg-dark);
  text-align: center;
}

.closing-inner {
  max-width: 640px;
  margin: 0 auto;
}

.closing-quote {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 36px;
}

.closing-body {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.8;
  margin-bottom: 12px;
}

.closing-cta {
  margin-top: 48px;
}

/* ── FOOTER ── */
.footer {
  background: var(--white);
  border-top: 1px solid var(--border);
}

.footer-inner {
  padding: 64px 60px 48px;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  max-width: 1120px;
  margin: 0 auto;
}

.footer-logo {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
  letter-spacing: -0.02em;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col-title {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a,
.footer-col span {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-col a:hover {
  color: var(--text);
}

.footer-note {
  font-size: 0.8rem !important;
  color: var(--text-muted) !important;
}

.footer-bottom {
  padding: 20px 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border);
  max-width: 1120px;
  margin: 0 auto;
}

.footer-legal {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-built {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-built a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-built a:hover {
  color: var(--text);
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .nav {
    padding: 16px 28px;
  }

  .hero {
    padding: 100px 28px 64px;
  }

  .hero-headline {
    font-size: clamp(2.2rem, 8vw, 3.5rem);
  }

  .hero-actions {
    flex-direction: column;
    gap: 20px;
  }

  .proof-bar {
    padding: 48px 28px;
  }

  .proof-inner {
    flex-direction: column;
    gap: 36px;
  }

  .proof-divider {
    width: 48px;
    height: 1px;
  }

  .problem,
  .offres,
  .methode,
  .audit,
  .closing {
    padding: 80px 28px;
  }

  .problem-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .problem-text {
    max-width: 100%;
  }

  .offer-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .methode-steps {
    grid-template-columns: 1fr;
  }

  .audit-inner {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 48px 28px 32px;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
  }

  .footer-bottom {
    padding: 20px 28px;
  }

  .section-header {
    text-align: left;
  }
}

@media (max-width: 600px) {
  .hero {
    padding: 88px 20px 56px;
  }

  .problem,
  .offres,
  .methode,
  .audit,
  .closing {
    padding: 64px 20px;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    padding: 16px 20px;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
  }

  .proof-stat {
    font-size: 2.4rem;
  }

  .diagram-signals {
    grid-template-columns: 1fr;
  }
}