/* Chronique impériale : thème activé uniquement par la configuration du projet. */
:root[data-story-theme="imperial"]{--paper:#f3eee5;--surface:#fcf8ef;--ink:#29252b;--body:#47404a;--muted:#756878;--line:#d9cdbc;--green:#7e233b;--green-soft:#eadce0;--gold:#987234;--shadow:0 20px 55px #32222c10}
:root[data-story-theme="imperial"][data-theme="dark"]{--paper:#121319;--surface:#1b1c24;--ink:#f1e8d8;--body:#d0cad0;--muted:#aea1a8;--line:#36313b;--green:#e0bf87;--green-soft:#33232d;--gold:#c7aa70;--shadow:0 20px 55px #0004}
html[data-story-theme="imperial"]{background:var(--paper)}
[data-story-theme="imperial"] body{background:radial-gradient(ellipse at 80% 8%,#7d29360d,transparent 52%),var(--paper)}
[data-story-theme="imperial"] .site-header{background:var(--paper);border-bottom:1px solid var(--gold)}
[data-story-theme="imperial"] .masthead{padding-top:22px;padding-bottom:20px}
[data-story-theme="imperial"] .brand>span{font-size:28px;letter-spacing:2px;text-transform:uppercase}
[data-story-theme="imperial"] .brand-sub{font:9px/1.7 'Segoe UI',Arial,sans-serif;letter-spacing:2.3px;color:var(--gold)}
[data-story-theme="imperial"] .brand .imperial-brand-mark{display:block;width:35px;height:43px;stroke:var(--gold);fill:none;stroke-width:1.5}
[data-story-theme="imperial"] .chapter-nav>a,[data-story-theme="imperial"] .tools-menu>summary{border-radius:3px}
[data-story-theme="imperial"] .chapter-nav>a.active{background:var(--green-soft);box-shadow:inset 0 -2px var(--gold);color:var(--green)}
[data-story-theme="imperial"] .stories-switch,[data-story-theme="imperial"] .theme-button{border-radius:4px}
.imperial-hero{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.8fr);gap:45px;align-items:center;padding:66px 0 52px;border-bottom:1px solid var(--line);margin-bottom:28px}
.imperial-kicker{font:10px/1.6 'Segoe UI',Arial,sans-serif;letter-spacing:3px;color:var(--gold);display:flex;align-items:center;gap:12px}
.imperial-kicker>span{width:32px;height:1px;background:var(--gold)}
.imperial-hero h1{font:88px/1.05 Georgia,'Times New Roman',serif;letter-spacing:5px;text-transform:uppercase;margin:20px 0 22px;color:var(--ink)}
.imperial-hero h1>span{display:block;font:27px/1.4 Georgia,serif;letter-spacing:0;text-transform:none;color:var(--gold);margin-top:18px}
.imperial-hero-copy>p{max-width:520px;font-size:14px;line-height:1.9;color:var(--muted);margin:0}
.imperial-hero-actions{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:28px}
[data-story-theme="imperial"] .primary-button{background:#762b40;color:#fff1e4;border:1px solid #a35161;border-radius:4px;box-shadow:0 4px 20px #4b172519;font-size:13px;padding:14px 18px}
[data-story-theme="imperial"] .primary-button:hover{background:#913a50;border-color:#ca8a90}
.imperial-hero-actions .primary-button span{margin-left:15px}
.imperial-text-link{color:var(--gold);font-size:12px;border-bottom:1px solid var(--line);padding:7px 0}
.imperial-topics{display:flex;flex-wrap:wrap;gap:0;margin-top:29px;color:var(--muted);font:9px/1.6 'Segoe UI',Arial,sans-serif;letter-spacing:1.7px;text-transform:uppercase}
.imperial-topics span+span:before{content:'·';color:var(--gold);margin:0 15px}
.imperial-hero-art{position:relative;min-height:340px;display:flex;align-items:center;justify-content:center;overflow:hidden;border-left:1px solid var(--line);background:radial-gradient(ellipse at center,#b8995220,transparent 68%)}
.imperial-seal{position:relative;z-index:1;text-align:center;width:230px;margin-top:-20px}
.imperial-seal svg{display:block;width:230px;height:230px;fill:none;stroke:var(--gold);stroke-width:.7}
.imperial-seal .imperial-shield{fill:#872e4014;stroke-width:1.4}
.imperial-seal .imperial-letter{stroke-width:2.5}
.imperial-seal>span{display:block;font:20px/1.5 Georgia,serif;letter-spacing:9px;color:var(--gold);margin-left:9px}
.imperial-seal small{display:block;font:8px/1.8 'Segoe UI',Arial,sans-serif;letter-spacing:2px;color:var(--muted);margin-top:7px}
.imperial-palace{position:absolute;left:8%;right:8%;bottom:0;display:flex;gap:10px;justify-content:center;align-items:end;height:95px;opacity:.22;pointer-events:none}
.imperial-palace span{height:45px;width:48px;border:1px solid var(--gold);border-bottom:0;background:linear-gradient(90deg,transparent 24%,var(--gold) 25%,transparent 26%,transparent 74%,var(--gold) 75%,transparent 76%)}
.imperial-palace span:nth-child(2),.imperial-palace span:nth-child(4){height:65px}
.imperial-palace span:nth-child(3){height:90px;width:64px;clip-path:polygon(50% 0,100% 18%,100% 100%,0 100%,0 18%)}
[data-story-theme="imperial"] .continue-card{border-radius:4px;border-left:3px solid var(--gold);background:var(--surface);padding:23px 25px}
[data-story-theme="imperial"] .continue-card h2{font-size:22px}
[data-story-theme="imperial"] .continue-card p{font-size:13px;line-height:1.6;color:var(--muted);margin-top:7px}
[data-story-theme="imperial"] .home-columns{margin-top:38px;gap:34px}
[data-story-theme="imperial"] .section-heading h2{font-size:26px}
[data-story-theme="imperial"] .search-label,[data-story-theme="imperial"] .simple-home .chapter-grid,[data-story-theme="imperial"] .my-stories,[data-story-theme="imperial"] .home-help,[data-story-theme="imperial"] .story-card,[data-story-theme="imperial"] .voices,[data-story-theme="imperial"] .chapter-settings{border-radius:4px}
[data-story-theme="imperial"] .story-card.open-story{border-color:var(--gold)}
[data-story-theme="imperial"] .my-stories{border-top:2px solid var(--gold)}
[data-story-theme="imperial"] .eyebrow{color:var(--gold);letter-spacing:2px}
[data-story-theme="imperial"] .chapter-heading h1{font-family:Georgia,serif}
[data-story-theme="imperial"] .chapter-section{color:var(--ink)}
[data-story-theme="imperial"] .site-footer{border-top:1px solid var(--line);color:var(--muted)}
@media(max-width:900px){.imperial-hero{gap:25px;grid-template-columns:minmax(0,1.2fr) minmax(220px,.8fr)}.imperial-hero h1{font-size:68px;letter-spacing:3px}.imperial-hero h1>span{font-size:23px}.imperial-hero-art{min-height:310px}.imperial-seal,.imperial-seal svg{width:200px}.imperial-seal svg{height:200px}}
@media(max-width:700px){.imperial-hero{grid-template-columns:1fr;padding:38px 0 30px;gap:28px}.imperial-hero h1{font-size:58px;margin-top:16px}.imperial-hero h1>span{font-size:22px}.imperial-hero-copy>p{font-size:13px}.imperial-hero-art{min-height:220px;border-left:0;border-top:1px solid var(--line)}.imperial-seal{margin-top:0;width:150px;padding-top:12px}.imperial-seal svg{width:150px;height:150px}.imperial-seal>span{font-size:14px;letter-spacing:6px}.imperial-seal small{font-size:7px}.imperial-palace{height:60px;opacity:.15}.imperial-hero-actions{gap:14px;margin-top:22px}.imperial-kicker{font-size:8px;letter-spacing:2px}.imperial-topics{letter-spacing:1px;font-size:8px}.imperial-topics span+span:before{margin:0 10px}[data-story-theme="imperial"] .brand>span{font-size:22px}[data-story-theme="imperial"] .brand .imperial-brand-mark{width:27px;height:34px}[data-story-theme="imperial"] .brand-sub{display:block;font-size:7px;letter-spacing:1.5px}[data-story-theme="imperial"] .continue-card{padding:20px}[data-story-theme="imperial"] .home-columns{gap:25px}.imperial-hero-actions .primary-button{font-size:12px}}
@media print{.imperial-hero-art{display:none}.imperial-hero{display:block;padding:20px 0}.imperial-hero h1{font-size:40px}.imperial-hero-actions,.imperial-topics{display:none}}