/* Reference-based charcoal surfaces, with the requested lavender accent. */
:root[data-theme=dark]{--canvas:#111111;--ink:#f4f4f4;--muted:#9c9c9c;--line:#303030;--white:#1f1f1f;--accent:#aca2ff;--accent-dark:#8e7eec;--accent-soft:#302b4b;--desk-surface:#1f1f1f;--desk-soft:#282828;--desk-border:#303030;--desk-muted:#999;--desk-shadow:none}
[data-theme=dark] body{background:#111111;color:#f4f4f4}
[data-theme=dark] .topbar{background:#1b1b1bf5;border-color:#2a2a2a;box-shadow:none}
[data-theme=dark] .sidebar,[data-theme=dark] .sidebar-bottom{background:#171717;border-color:#2a2a2a}
[data-theme=dark] .brand>span:last-child>span:last-child,[data-theme=dark] .header-caption,[data-theme=dark] .search-hint,[data-theme=dark] .item-copy small{color:#9c9c9c}
[data-theme=dark] .header-caption{background:#282828;border-color:#303030}
[data-theme=dark] .entity-heading h1,[data-theme=dark] .lesson-card h3,[data-theme=dark] .day-title-row h2,[data-theme=dark] .personal-heading h2{color:#f4f4f4}
[data-theme=dark] .entity-heading p,[data-theme=dark] .mobile-lesson-summary,[data-theme=dark] .period-selects label,[data-theme=dark] .catalog-caption,[data-theme=dark] .favorites-section h2{color:#9c9c9c}
[data-theme=dark] .search-field,[data-theme=dark] .period-selects select,[data-theme=dark] .group-filters select,[data-theme=dark] .schedule-options select{background-color:#282828;border-color:#303030;color:#ededed;border-radius:13px}
[data-theme=dark] .search-field input{color:#f4f4f4}
[data-theme=dark] .search-field input::placeholder{color:#898989}
[data-theme=dark] .search-field:focus-within{border-color:#aca2ff;box-shadow:0 0 0 3px #aca2ff16}
[data-theme=dark] .entity-tabs,[data-theme=dark] .view-switch{background:#151515;border-color:#303030;border-radius:14px}
[data-theme=dark] .entity-tabs button[aria-selected=false],[data-theme=dark] .view-switch button{background:transparent;color:#a3a3a3}
[data-theme=dark] .entity-tabs button[aria-selected=true],[data-theme=dark] .view-switch button[aria-pressed=true]{background:#302b4b;color:#aca2ff;border-color:#40395e;box-shadow:none}
[data-theme=dark] .catalog-item{border-radius:16px}
[data-theme=dark] .catalog-item:hover{background:#242424;border-color:#303030}
[data-theme=dark] .catalog-item.selected{background:#302b4b;border-color:#484066}
[data-theme=dark] .catalog-item .item-mark{background:#282828;color:#aaa}
[data-theme=dark] .catalog-item.selected .item-mark{background:#40385f;color:#aca2ff}
[data-theme=dark] .icon-button,[data-theme=dark] .heading-actions .icon-button,[data-theme=dark] .mobile-search,[data-theme=dark] .mobile-favorites,[data-theme=dark] .date-button,[data-theme=dark] .personal-close,[data-theme=dark] .sidebar .drawer-close{background:#282828;color:#c7c7c7;border-color:#303030;border-radius:13px}
[data-theme=dark] .theme-toggle{background:#302b4b;color:#aca2ff;border-color:#40395e;border-radius:13px}
[data-theme=dark] .heading-actions .favorite-toggle[aria-pressed=true]{background:#4b4024;color:#f4d47d;border-color:#5a4d2b}
[data-theme=dark] .toolbar{background:#1f1f1f;border-color:#292929;border-radius:24px 24px 0 0;box-shadow:none}
[data-theme=dark] .day-tabs{background:#1f1f1f;border-color:#292929;border-radius:0 0 24px 24px;box-shadow:none}
[data-theme=dark] .week-label strong,[data-theme=dark] .lesson-time strong{color:#e2e2e2}
[data-theme=dark] .week-label>span,[data-theme=dark] .lesson-time>span,[data-theme=dark] .freshness{color:#969696}
[data-theme=dark] .today-button{background:#282828;color:#aca2ff;border-color:#303030}
[data-theme=dark] .day-tab{background:#282828;border-color:transparent;border-radius:15px}
[data-theme=dark] .day-tab .weekday{color:#9b9b9b}
[data-theme=dark] .day-tab .day-number{color:#f3f3f3}
[data-theme=dark] .day-tab[aria-pressed=true],[data-theme=dark] .day-tab[aria-pressed=true]:hover,[data-theme=dark] .day-tab:hover{background:#302b4b;border-color:#5b4f83;box-shadow:none}
[data-theme=dark] .day-tab[aria-pressed=true] .day-number,[data-theme=dark] .day-tab:hover .day-number{color:#e6e0ff}
[data-theme=dark] .day-tab[aria-pressed=true] .weekday,[data-theme=dark] .day-tab:hover .weekday{color:#aca2ff}
[data-theme=dark] .day-tab.is-today:not([aria-pressed=true]){background:#25232c;border-color:#514968}
[data-theme=dark] .day-tab .day-dot{background:#aca2ff}
[data-theme=dark] .day-title-row>span{background:#282828;border-color:transparent;color:#aaa}
[data-theme=dark] .lesson-card,[data-theme=dark] .lesson-card:hover{background:#1f1f1f;border-color:#2b2b2b;border-left-color:var(--lesson-color);border-radius:23px;box-shadow:none}
[data-theme=dark] .lesson-row.is-current .lesson-card{background:#232227;border-color:#514968;border-left-color:var(--lesson-color);box-shadow:none}
[data-theme=dark] .lesson-card .detail-link{color:#aca2ff;text-decoration-color:#514968}
[data-theme=dark] .detail-row,[data-theme=dark] .detail-row .room-line{color:#c5c5c5}
[data-theme=dark] .detail-row svg{color:#898989}
[data-theme=dark] .lesson-group-badge,[data-theme=dark] .detail-row .subgroup-badge{background:#2d293e;color:#bcb2ff;border-radius:9px}
[data-theme=dark] .lesson-comment{background:#282828;color:#aaa;border-radius:12px}
[data-theme=dark] .week-section{border-color:#292929}
[data-theme=dark] .empty-day{background:#1f1f1f;border-color:#303030;border-radius:23px}
[data-theme=dark] .empty-day h3{color:#dedede}
[data-theme=dark] .empty-day p{color:#999}
[data-theme=dark] .personal-dialog,[data-theme=dark] .personal-panel{background:#1f1f1f;border-color:#292929}
[data-theme=dark] .quick-card{background:#282828;border-color:#303030;border-radius:18px}
[data-theme=dark] .quick-card.active{background:#302b4b;border-color:#514968}
[data-theme=dark] .quick-icon{background:#333;color:#aca2ff;border-radius:13px}
[data-theme=dark] .quick-copy small{color:#999}
[data-theme=dark] .welcome-icon{background:#302b4b;color:#aca2ff}
[data-theme=dark] .primary-button{background:#aca2ff;color:#211b37;box-shadow:none}
[data-theme=dark] .primary-button:hover{background:#beb5ff}
[data-theme=dark] .page-footer.feedback-footer a{color:#aca2ff}
[data-theme=dark] .sidebar-bottom{color:#8f8f8f}
@media(max-width:850px){
 [data-theme=dark] .toolbar{border-radius:22px;border:1px solid #292929}
 [data-theme=dark] .day-tabs{background:transparent;border:0;border-radius:0}
 [data-theme=dark] .lesson-card{padding:18px 16px}
 [data-theme=dark] .lesson-card h3{font-size:16px;line-height:1.45}
 [data-theme=dark] .lesson-details{gap:15px}
 [data-theme=dark] .sidebar{background:#1f1f1f;border-radius:27px 27px 0 0}
 [data-theme=dark] .personal-dialog{border-radius:28px 28px 0 0}
 [data-theme=dark] .mobile-navigation{background:#151515f5;border-top:1px solid #2b2b2b}
 [data-theme=dark] .mobile-navigation button{color:#929292}
 [data-theme=dark] .mobile-navigation button[aria-current=page]{background:#302b4b;color:#aca2ff}
}