/* Low-contrast slate surfaces, readable text, no bright white panels at night. */
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;min-width:0}
.header-actions .login-button{margin-left:0;max-width:220px;overflow:hidden;text-overflow:ellipsis}
.theme-toggle{width:40px;height:40px;flex-shrink:0;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:var(--muted);display:grid;place-items:center}
.theme-toggle svg{width:20px;height:20px}.theme-sun{display:none}
:root[data-theme="dark"]{color-scheme:dark;--bg:#151c24;--surface:#1d2732;--ink:#d5dee7;--muted:#98a7b6;--line:#303e4c;--accent:#91b8d3;--soft:#243544}
[data-theme="dark"] .theme-sun{display:block}[data-theme="dark"] .theme-moon{display:none}
[data-theme="dark"] .site-header{background:rgba(21,28,36,.97)}
[data-theme="dark"] .login-button{color:#b4cedf}
[data-theme="dark"] :is(dialog,.episode-panel,.watch-tool,.history-item,.schedule-item,.day-tab,.secondary-button,.quality-label select,.timing-fields input,.player-controls select){background:var(--surface)}
[data-theme="dark"] .primary-button{background:#537f9e;color:#f4f8fb}
[data-theme="dark"] :is(.poster,.detail-poster,.history-item>img,#videoSlot){background:#24313e}
[data-theme="dark"] :is(.episode-search input,.room-share input,.subtitle-search input,.bridge-field input){background:#17212b}
[data-theme="dark"] :is(.close-button,.detail-tags span,.episode-button,.subtitle-hit){background:#26333f;color:#bccad6}
[data-theme="dark"] .episode-button.current{background:#2c4355;border-color:#668aa4;color:#d2e5f2}
[data-theme="dark"] .episode-button.watched{color:#9bc9b8}
[data-theme="dark"] :is(.card-save,.rating){background:#1d2732ed;color:#c2d4e2}
[data-theme="dark"] .card-save.saved{background:#30475a;color:#bbd9ec}
[data-theme="dark"] .day-tab[aria-selected="true"]{background:#2a4052;color:#c9dfee;border-color:#6286a0}
[data-theme="dark"] .day-tab[aria-selected="true"] strong{color:#c9dfee}
[data-theme="dark"] .state-panel{border-color:var(--line)}
[data-theme="dark"] :is(.detail-description,.watch-preferences,.history-info p,.schedule-open p,#aiResult){color:#aebdca}
[data-theme="dark"] :is(.detail-tags span,.tool-badge,.history-info small,.poster-placeholder){color:#98aabd}
[data-theme="dark"] .watch-position{color:#a2c7df}
[data-theme="dark"] .auth-animation{background:#243d51}
[data-theme="dark"] dialog::backdrop{background:#060d17b3}
[data-theme="dark"] .skip-button{background:#243b4dee;color:#d8e8f3;border-color:#7394ad66}
[data-theme="dark"] .history-meter{background:#344250}
[data-theme="dark"] .skeleton .poster,[data-theme="dark"] .skeleton-line{background:linear-gradient(100deg,#22313e 30%,#2c3c4c 50%,#22313e 70%);background-size:200% 100%}
[data-theme="dark"] .toast{background:#2e465a;color:#e4eef6}
@media(hover:hover){.theme-toggle:hover{color:var(--accent);background:var(--soft)}[data-theme="dark"] .primary-button:hover{background:#628eac}[data-theme="dark"] :is(.secondary-button,.card-save):hover{background:#2c4051}}
@media(max-width:1050px){.header-inner{gap:22px}.navigation{gap:18px}}
@media(max-width:820px){.header-inner{height:108px;padding:0 16px;display:grid;grid-template-columns:1fr auto;grid-template-rows:60px 48px;gap:0}.header-actions{grid-column:2;grid-row:1}.navigation{grid-row:2;grid-column:1/-1;overflow-x:auto;scrollbar-width:none;font-size:13px}.navigation a{flex-shrink:0}.episode-panel{top:128px}}
@media(max-width:640px){.header-actions{grid-column:2;grid-row:1;gap:7px}.header-actions .login-button{font-size:11px;padding:8px;max-width:175px}.theme-toggle{width:36px;height:36px}.theme-toggle svg{width:18px;height:18px}.header-inner{gap:0}}