:root{color-scheme:light;--theme-bg:#f5f7fb;--theme-surface:#fff;--theme-ink:#15213a;--theme-muted:#6c7890;--theme-line:#e5eaf2;--theme-input:#fff}
[data-theme="dark"]{color-scheme:dark;--theme-bg:#071126;--theme-surface:#101d36;--theme-ink:#edf5ff;--theme-muted:#9aabc2;--theme-line:#263752;--theme-input:#14233e;--bg:#071126;--ink:#edf5ff;--muted:#9aabc2;--line:#263752;--white:#101d36}
[data-theme="dark"] body{background:var(--theme-bg);color:var(--theme-ink)}
[data-theme="dark"] .panel,[data-theme="dark"] .stat,[data-theme="dark"] .block-card,[data-theme="dark"] .date-chip,[data-theme="dark"] dialog,[data-theme="dark"] .auth-card{background:var(--theme-surface);color:var(--theme-ink);border-color:var(--theme-line)}
[data-theme="dark"] input,[data-theme="dark"] select,[data-theme="dark"] textarea,[data-theme="dark"] .search{background:var(--theme-input);color:var(--theme-ink);border-color:var(--theme-line)}
[data-theme="dark"] th,[data-theme="dark"] td{border-color:var(--theme-line)}
[data-theme="dark"] .alert-item,[data-theme="dark"] .room-tag,[data-theme="dark"] .icon-btn,[data-theme="dark"] .btn.secondary{background:#172640;color:var(--theme-ink)}
[data-theme="dark"] .bar-track,[data-theme="dark"] .mini-track{background:#263752}
.app-logo{width:48px;height:48px;object-fit:contain;display:block;filter:drop-shadow(0 4px 9px rgba(0,0,0,.16))}.sidebar .app-logo{width:44px;height:44px}.theme-toggle{border:1px solid var(--theme-line,#e5eaf2);background:var(--theme-surface,#fff);color:var(--theme-ink,#15213a);border-radius:10px;padding:9px 12px;font:700 12px system-ui;cursor:pointer}.auth-theme{position:fixed;right:18px;top:18px}