/* Deux surfaces : vitrine commerciale et navigation progressive de l'espace privé. */
.commercial-header { position: relative; gap: 20px; }
.commercial-header .brand { font-size: 19px; }
.commercial-header .desktop-commercial-nav { gap: 18px; }
.commercial-header .desktop-commercial-nav > a:not(.button) { font-size: 13px; white-space: nowrap; }
.commercial-header .button { padding-inline: 18px; }
.public-mobile-menu { display: none; }
.commercial-hero { grid-template-columns: 1.2fr 1fr; gap: 56px; padding-top: 48px; }
.commercial-hero h1 { font-size: clamp(38px, 4vw, 56px); letter-spacing: -.045em; }
.commercial-hero .highlight { white-space: normal; }
.commercial-hero .hero-actions { gap: 12px; }
.commercial-hero .hero-actions .button { font-size: 13px; padding-inline: 20px; }
.launch-note { font-size: 12px; margin-top: 24px; max-width: 500px; line-height: 1.7; }
.launch-note strong { color: var(--navy); }
.strategy-chain { list-style: none; padding: 0; margin: 0; }
.strategy-chain li { padding: 9px 0; display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--navy); border-bottom: 1px solid var(--border); }
.strategy-chain li span { color: var(--muted); font-size: 12px; }
.chain-result { display: flex; align-items: center; gap: 12px; padding: 16px; margin-top: 20px; border-radius: 12px; background: var(--accent-soft); color: var(--navy); font-weight: 600; font-size: 14px; }
.problem-section, .build-section { background: var(--canvas); }
.problem-section .section { padding-block: 72px; }
.problem-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.problem-grid p { display: flex; align-items: flex-start; gap: 12px; font-size: 14px; color: var(--navy); }
.problem-grid svg { color: var(--muted); width: 18px; margin-top: 3px; }
.problem-close { margin-top: 36px; max-width: 650px; }
.four-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.four-grid .step-card { padding: 24px; }
.four-grid h3 { font-size: 20px; }
.foundation-card { padding: 32px; background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); }
.foundation-card .icon-tile { background: var(--canvas); margin-bottom: 24px; }
.foundation-card h3 { margin-bottom: 20px; }
.foundation-card ul { padding-left: 20px; margin: 0; color: var(--muted); font-size: 14px; line-height: 2; }
.tool-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
.tool-card { padding: 28px; border: 1px solid var(--border); border-radius: var(--radius); }
.tool-number { font-size: 12px; color: var(--blue); font-weight: 700; }
.tool-card h3 { margin: 24px 0 16px; }
.tool-card p { font-size: 14px; margin-bottom: 20px; }
.assistant-section { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; padding: 56px; background: var(--navy); color: var(--white); border-radius: 24px; align-items: center; }
.assistant-section h2 { color: var(--white); margin-bottom: 24px; }
.assistant-section .eyebrow { color: #fdba74; }
.assistant-section p:not(.eyebrow) { color: #c9d7e4; margin-bottom: 20px; }
.assistant-section .small { font-size: 12px; }
.prompt-examples blockquote { margin: 12px 0; padding: 16px 20px; border: 1px solid #526078; border-radius: 12px; font-size: 14px; }
.prompt-examples .eyebrow { font-size: 12px; }
.memory-section { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 64px; }
.memory-section .section-heading { margin: 0; }
.memory-tags { display: flex; flex-wrap: wrap; gap: 12px; }
.memory-tags span { display: flex; align-items: center; gap: 10px; background: var(--canvas); border: 1px solid var(--border); border-radius: 999px; padding: 12px 18px; color: var(--navy); font-size: 14px; }
.memory-tags svg { width: 16px; color: var(--blue); }
.audience-section { padding-block: 64px; border-block: 1px solid var(--border); }
.audience-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.audience-inner p + p { margin-top: 20px; }
.pricing-section > .section-heading { margin-inline: auto; text-align: center; }
.price-card { display: grid; grid-template-columns: .85fr 1.15fr; border: 1px solid var(--border); border-radius: 24px; overflow: hidden; box-shadow: var(--shadow); }
.price-summary { padding: 48px; background: var(--navy); color: var(--white); }
.price-summary > .pill { background: var(--accent-soft); color: var(--navy); }
.price-summary h3 { color: var(--white); font-size: 26px; margin-top: 28px; }
.price-summary .price { color: var(--white); font-size: 72px; font-weight: 700; letter-spacing: -4px; line-height: 1.2; margin-top: 20px; }
.price span { font-size: 44px; font-weight: 400; }
.price-summary .price-frequency { color: #fdba74; font-size: 16px; }
.price-summary p { color: #c9d7e4; }
.price-description { margin: 28px 0 20px; font-size: 14px; }
.price-credits { display: flex; align-items: flex-start; gap: 10px; font-size: 13px; margin-bottom: 28px; }
.price-credits svg { color: #fdba74; width: 18px; margin-top: 3px; }
.price-summary .button { width: 100%; }
.price-summary > .small { margin-top: 16px; font-size: 12px; }
.price-includes { padding: 48px; }
.price-includes h3 { font-size: 22px; }
.price-includes ul { list-style: none; padding: 0; margin: 24px 0 32px; display: grid; gap: 14px; }
.price-includes li { display: flex; align-items: flex-start; gap: 12px; color: var(--text); font-size: 14px; }
.price-includes li svg { width: 18px; color: var(--success); margin-top: 3px; }
.offer-pending { padding: 20px; background: var(--canvas); border-radius: 12px; font-size: 12px; }
.offer-pending strong { color: var(--navy); }
.offer-pending p { margin-top: 8px; }
.comparison-section { padding-top: 0; max-width: 900px; }
.comparison-table { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.comparison-table table { width: 100%; border-collapse: collapse; font-size: 14px; }
.comparison-table caption { padding: 16px; color: var(--muted); font-size: 12px; text-align: left; }
.comparison-table th, .comparison-table td { padding: 16px 24px; text-align: left; border-top: 1px solid var(--border); }
.comparison-table th { background: var(--canvas); color: var(--navy); font-weight: 600; }
.comparison-table td:first-child { color: var(--muted); }
.cta-footnote { margin-top: 20px; font-size: 12px; color: #c9d7e4; }

/* Une sidebar stable ; sous-navigation uniquement dans la rubrique courante. */
.sidebar { padding: 24px 16px; gap: 28px; overflow-y: auto; }
.sidebar .brand { align-self: flex-start; }
.workspace-menu { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.workspace-menu > summary { display: none; }
.navigation-body { display: flex; flex-direction: column; min-height: calc(100dvh - 132px); gap: 20px; }
.sidebar nav { display: grid; gap: 6px; }
.sidebar .nav-group > a { font-size: 13px; min-height: 46px; gap: 10px; padding: 10px; }
.sidebar nav a.section-active { background: #eef4ff; color: var(--blue); font-weight: 600; }
.sidebar .nav-children { padding: 4px 0 4px 18px; margin-left: 20px; border-left: 1px solid var(--border); }
.sidebar .nav-children a { font-size: 12px; min-height: 40px; padding: 8px; }
.sidebar .utility-navigation { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--border); }
.sidebar-bottom { position: static; margin-top: 0; padding-top: 16px; border-top: 1px solid var(--border); }
.sidebar-bottom .account-chip { display: flex; }
.section-navigation { display: flex; gap: 8px; flex-wrap: wrap; margin: -12px 0 28px; }
.section-navigation a { display: inline-flex; align-items: center; min-height: 44px; padding: 8px 16px; border: 1px solid var(--border); border-radius: 999px; text-decoration: none; color: var(--muted); background: var(--white); font-size: 13px; }
.section-navigation a[aria-current] { background: var(--navy); color: var(--white); border-color: var(--navy); }
.section-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.section-cards article { display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.section-cards article h2 { font-size: 22px; }
.section-cards article p { font-size: 14px; flex: 1; }
.section-cards .button { margin-top: 0; }
.section-intro { margin-bottom: 24px; }
.pending-panel { max-width: 800px; padding: 32px; }
.pending-panel h2 { font-size: 26px; margin: 24px 0 16px; }
.pending-panel > p { max-width: 640px; margin-bottom: 24px; }
.progress-unavailable { font-size: 12px; margin: 20px 0; padding: 12px 16px; background: var(--canvas); border-radius: 8px; }
.roadmap { list-style: none; margin: 24px 0 0; padding: 0; }
.roadmap li { display: flex; align-items: center; gap: 20px; padding: 24px 0; border-top: 1px solid var(--border); }
.roadmap-number { width: 36px; height: 36px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-size: 14px; color: var(--navy); flex-shrink: 0; }
.roadmap li > div { flex: 1; min-width: 0; }
.roadmap h3 { font-size: 18px; margin-bottom: 8px; }
.roadmap p { font-size: 13px; }
.roadmap a { min-height: 44px; display: inline-flex; align-items: center; font-size: 13px; white-space: nowrap; }
.profile-summary { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 16px; margin-block: 28px; font-size: 14px; }
.profile-summary dt { color: var(--muted); }
.profile-summary dd { margin: 0; color: var(--navy); overflow-wrap: anywhere; }
.credits-panel { max-width: 720px; }
.credits-panel h2 { margin-top: 24px; }
.credits-value { font-size: 32px; font-weight: 600; color: var(--navy); margin-block: 24px; }
.credits-panel .button { margin-block: 24px 16px; }
.credits-panel a { display: inline-flex; align-items: center; min-height: 44px; margin-top: 12px; }
.app-help { max-width: 800px; }
.app-help h2:not(:first-child) { margin-top: 36px; }
.app-help p { margin-block: 16px 20px; }
.app-help .button { margin: 0 8px 12px 0; }
.assistant-empty { border-top: 1px solid var(--border); padding-top: 24px; }
.assistant-empty blockquote { margin: 16px 0; padding: 16px; border-left: 3px solid var(--blue); background: var(--canvas); font-size: 14px; }
.assistant-empty label { display: block; margin-top: 24px; font-size: 14px; font-weight: 600; }
.assistant-empty textarea { display: block; width: 100%; height: 100px; margin: 8px 0 16px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; font: inherit; font-size: 14px; background: var(--canvas); color: var(--muted); }
.assistant-empty .small { margin-top: 12px; }
button:disabled { cursor: not-allowed; }
form[aria-busy] button:disabled { cursor: wait; }

@media (max-width: 1199px) {
  .commercial-header .desktop-commercial-nav { display: none; }
  .public-mobile-menu { display: block; }
  .public-mobile-menu summary { display: flex; align-items: center; justify-content: center; list-style: none; cursor: pointer; min-height: 44px; padding: 8px 20px; border: 1px solid var(--border); border-radius: 999px; font-size: 14px; color: var(--navy); }
  .public-mobile-menu nav { position: absolute; right: 0; top: 80px; width: min(360px, 100%); display: flex; flex-direction: column; align-items: stretch; gap: 4px; padding: 20px; background: var(--white); box-shadow: var(--shadow); border: 1px solid var(--border); border-radius: 16px; z-index: 20; }
  .commercial-header .public-mobile-menu nav > a { display: flex; min-height: 44px; padding-inline: 12px; font-size: 14px; }
  .commercial-hero { gap: 32px; }
  .four-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .assistant-section { padding: 40px; gap: 32px; }
}
@media (max-width: 767px) {
  .commercial-header { min-height: 80px; }
  .commercial-hero { grid-template-columns: 1fr; }
  .commercial-hero h1 { font-size: 39px; }
  .commercial-hero .hero-actions .button { flex: auto; width: 100%; }
  .problem-grid, .four-grid, .tool-grid, .assistant-section, .memory-section, .audience-inner, .price-card { grid-template-columns: 1fr; }
  .problem-section .section { padding-block: 48px; }
  .problem-grid { gap: 20px; }
  .foundation-card { padding: 24px; }
  .assistant-section { padding: 32px 24px; gap: 24px; }
  .assistant-section h2 { font-size: 30px; }
  .memory-section, .audience-inner { gap: 32px; }
  .memory-tags { gap: 8px; }
  .memory-tags span { font-size: 13px; padding: 10px 14px; }
  .price-summary, .price-includes { padding: 32px 24px; }
  .price-summary .price { font-size: 64px; }
  .comparison-table th, .comparison-table td { padding: 14px; font-size: 13px; }
  .sidebar { overflow: visible; padding: 16px; gap: 16px; }
  .workspace-menu { display: block; }
  .workspace-menu > summary { display: flex; align-items: center; justify-content: space-between; min-height: 44px; list-style: none; font-size: 14px; font-weight: 600; color: var(--navy); cursor: pointer; padding: 8px 12px; background: var(--canvas); border-radius: 8px; }
  .workspace-menu > summary::after { content: '+'; font-size: 24px; font-weight: 400; }
  .workspace-menu[open] > summary::after { content: '−'; }
  .navigation-body { min-height: 0; padding-top: 16px; gap: 16px; }
  .sidebar nav { display: grid; gap: 4px; }
  .sidebar .nav-group > a { flex-direction: row; text-align: left; font-size: 14px; min-height: 48px; justify-content: flex-start; gap: 12px; }
  .sidebar .nav-children a { flex-direction: row; text-align: left; justify-content: flex-start; font-size: 13px; min-height: 44px; padding: 8px; }
  .sidebar .utility-navigation { margin: 0; padding-top: 16px; }
  .sidebar-bottom { position: static; }
  .sidebar-bottom .text-button { font-size: 13px; }
  .sidebar .brand { margin-bottom: 0; }
  .section-navigation { gap: 8px; }
  .section-navigation a { padding: 8px 12px; font-size: 12px; }
  .section-cards { grid-template-columns: 1fr; }
  .roadmap li { flex-wrap: wrap; gap: 12px; }
  .roadmap li > div { flex-basis: calc(100% - 48px); }
  .roadmap a { margin-left: 48px; }
  .profile-summary { grid-template-columns: 1fr; gap: 8px; }
  .profile-summary dd { margin-bottom: 16px; }
  .pending-panel { padding: 24px; }
}