/* Zhakaw Multi-Theme Appearance Studio v2.2.0
   Adds seven complete interface presets and advanced local appearance controls. */

/* Extended accent palette */
[data-accent="violet"]{--accent:#7c3aed;--accent2:#ec4899}
[data-accent="indigo"]{--accent:#4f46e5;--accent2:#8b5cf6}
[data-accent="blue"]{--accent:#2563eb;--accent2:#06b6d4}
[data-accent="cyan"]{--accent:#0891b2;--accent2:#22c55e}
[data-accent="teal"]{--accent:#0f9f8f;--accent2:#22c55e}
[data-accent="green"]{--accent:#16a34a;--accent2:#06b6d4}
[data-accent="lime"]{--accent:#65a30d;--accent2:#16a34a}
[data-accent="amber"]{--accent:#d97706;--accent2:#ef4444}
[data-accent="orange"]{--accent:#ea580c;--accent2:#f59e0b}
[data-accent="red"]{--accent:#dc2626;--accent2:#f97316}
[data-accent="rose"]{--accent:#e11d48;--accent2:#f43f5e}
[data-accent="pink"]{--accent:#db2777;--accent2:#f97316}

/* Shared appearance variables */
.classic-chat-page{
  --ui-radius-xs:6px;
  --ui-radius-sm:8px;
  --ui-radius-md:12px;
  --ui-radius-lg:18px;
  --ui-panel-gap:0px;
  --ui-transition:.18s ease;
  --ui-message-pad-y:6px;
  --ui-message-pad-x:12px;
  --ui-room-min:50px;
  --ui-user-min:49px;
  --ui-font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif;
  font-family:var(--ui-font);
}

/* Font options */
[data-font="system"]{--ui-font:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Tahoma,Arial,sans-serif}
[data-font="modern"]{--ui-font:"Segoe UI Variable","Aptos",Inter,ui-sans-serif,system-ui,sans-serif}
[data-font="rounded"]{--ui-font:"Trebuchet MS","Arial Rounded MT Bold",Nunito,ui-sans-serif,system-ui,sans-serif}
[data-font="serif"]{--ui-font:Georgia,"Times New Roman",serif}
[data-font="mono"]{--ui-font:"Cascadia Code","SFMono-Regular",Consolas,"Liberation Mono",monospace}

/* Corner options */
[data-radius="sharp"]{--ui-radius-xs:2px;--ui-radius-sm:3px;--ui-radius-md:5px;--ui-radius-lg:7px}
[data-radius="soft"]{--ui-radius-xs:6px;--ui-radius-sm:8px;--ui-radius-md:12px;--ui-radius-lg:18px}
[data-radius="rounded"]{--ui-radius-xs:10px;--ui-radius-sm:14px;--ui-radius-md:19px;--ui-radius-lg:28px}

.classic-chat-page .community-card,
.classic-chat-page .classic-room,
.classic-chat-page .classic-room-icon,
.classic-chat-page .room-search-box input,
.classic-chat-page .current-room-avatar,
.classic-chat-page .stage-actions button,
.classic-chat-page .composer-item,
.classic-chat-page .classic-compose-row .message-input,
.classic-chat-page .classic-send,
.classic-chat-page .classic-user-item,
.classic-chat-page .right-info-card,
.classic-chat-page .right-primary-link,
.classic-chat-page .right-search input,
.classic-chat-page .account-menu,
.classic-chat-page .account-menu>a,
.classic-chat-page .account-menu>button,
.classic-chat-page .modal,
.classic-chat-page .modal-head,
.classic-chat-page .modal-close,
.classic-chat-page .field input,
.classic-chat-page .field select,
.classic-chat-page .field textarea,
.classic-chat-page .primary-btn,
.classic-chat-page .secondary-btn,
.classic-chat-page .danger-btn,
.classic-chat-page .gift-item,
.classic-chat-page .online-user,
.classic-chat-page .composer-extension-panel,
.classic-chat-page .chat-log-actions,
.classic-chat-page .back-to-bottom{
  border-radius:var(--ui-radius-sm)!important;
}
.classic-chat-page .modal{border-radius:var(--ui-radius-lg)!important}
.classic-chat-page .classic-room-icon,
.classic-chat-page .classic-user-avatar .avatar,
.classic-chat-page .chat-log-avatar .avatar,
.classic-chat-page .story-ring,
.classic-chat-page .story-ring .avatar{border-radius:calc(var(--ui-radius-md) + 8px)}
[data-radius="rounded"] .classic-room-icon,
[data-radius="rounded"] .classic-user-avatar .avatar,
[data-radius="rounded"] .chat-log-avatar .avatar,
[data-radius="rounded"] .story-ring,
[data-radius="rounded"] .story-ring .avatar{border-radius:50%}

/* Density */
[data-density="compact"]{--ui-message-pad-y:3px;--ui-message-pad-x:10px;--ui-room-min:42px;--ui-user-min:42px;--classic-head:46px;--classic-foot:42px}
[data-density="comfortable"]{--ui-message-pad-y:6px;--ui-message-pad-x:12px;--ui-room-min:50px;--ui-user-min:49px}
[data-density="spacious"]{--ui-message-pad-y:10px;--ui-message-pad-x:16px;--ui-room-min:60px;--ui-user-min:58px;--classic-head:56px;--classic-foot:52px}
[data-density] .chat-log{padding:var(--ui-message-pad-y) var(--ui-message-pad-x)}
[data-density] .classic-room{min-height:var(--ui-room-min)}
[data-density] .classic-user-item{min-height:var(--ui-user-min)}
[data-density="compact"] .left-panel-body,[data-density="compact"] .right-tab-panel{padding:6px}
[data-density="compact"] .classic-room-icon{width:31px;height:31px;min-width:31px;font-size:15px}
[data-density="compact"] .chat-log-avatar,[data-density="compact"] .chat-log-avatar .avatar{width:34px;height:34px;min-width:34px}
[data-density="compact"] .chat-log-content{font-size:12px;line-height:1.35}
[data-density="compact"] .panel-toolbar,[data-density="compact"] .panel-tool{height:35px;min-height:35px}
[data-density="spacious"] .left-panel-body,[data-density="spacious"] .right-tab-panel{padding:14px}
[data-density="spacious"] .classic-room-icon{width:42px;height:42px;min-width:42px;font-size:20px}
[data-density="spacious"] .chat-log-avatar,[data-density="spacious"] .chat-log-avatar .avatar{width:46px;height:46px;min-width:46px}
[data-density="spacious"] .chat-log-content{font-size:14px;line-height:1.58}
[data-density="spacious"] .classic-compose-row{min-height:48px}
[data-density="spacious"] .classic-compose-row .message-input{min-height:43px;padding:11px 13px}

/* Sidebar width */
[data-sidebar-size="narrow"]{--left-width:230px;--right-width:255px}
[data-sidebar-size="default"]{--left-width:280px;--right-width:300px}
[data-sidebar-size="wide"]{--left-width:340px;--right-width:350px}

/* Optional app rail */
@media(min-width:851px){
  .classic-chat-page[data-left-rail="hidden"] .left-rail{display:none}
  .classic-chat-page[data-left-rail="hidden"] .classic-logo{width:var(--left-width)}
  .classic-chat-page[data-left-rail="hidden"] .classic-shell{grid-template-columns:var(--left-width) minmax(320px,1fr) var(--right-width)}
  .classic-chat-page[data-left-rail="hidden"] .left-panel{grid-column:1}
  .classic-chat-page[data-left-rail="hidden"] .chat-stage{grid-column:2}
  .classic-chat-page[data-left-rail="hidden"] .right-panel{grid-column:3}
  .classic-chat-page[data-left-rail="hidden"] .classic-shell.left-collapsed{grid-template-columns:0 minmax(320px,1fr) var(--right-width)}
  .classic-chat-page[data-left-rail="hidden"] .classic-shell.right-collapsed{grid-template-columns:var(--left-width) minmax(320px,1fr) 0}
  .classic-chat-page[data-left-rail="hidden"] .classic-shell.left-collapsed.right-collapsed{grid-template-columns:0 minmax(320px,1fr) 0}
}
@media(min-width:851px) and (max-width:1220px){
  .classic-chat-page[data-left-rail="hidden"] .classic-shell,
  .classic-chat-page[data-left-rail="hidden"] .classic-shell.right-collapsed,
  .classic-chat-page[data-left-rail="hidden"] .classic-shell.left-collapsed.right-collapsed{grid-template-columns:var(--left-width) minmax(320px,1fr)}
  .classic-chat-page[data-left-rail="hidden"] .classic-shell.left-collapsed{grid-template-columns:0 minmax(320px,1fr)}
}

/* Message presentation */
[data-message-style="flat"] .chat-log{border-bottom:1px solid color-mix(in srgb,var(--classic-border) 34%,transparent);margin:0}
[data-message-style="cards"] .classic-messages{padding:10px;background-size:26px 26px}
[data-message-style="cards"] .chat-log{margin:5px 0;border:1px solid var(--classic-border);background:color-mix(in srgb,var(--classic-panel) 96%,var(--accent) 4%);border-radius:var(--ui-radius-md)!important;box-shadow:0 4px 14px rgba(20,28,48,.055)}
[data-message-style="cards"] .chat-log:hover{border-color:color-mix(in srgb,var(--accent) 28%,var(--classic-border));background:var(--classic-panel)}
[data-message-style="cards"] .chat-log.own{background:color-mix(in srgb,var(--accent) 7%,var(--classic-panel));border-color:color-mix(in srgb,var(--accent) 20%,var(--classic-border))}
[data-message-style="bubbles"] .classic-messages{padding:12px 10px}
[data-message-style="bubbles"] .chat-log{margin:2px 0;border-bottom:0;background:transparent!important}
[data-message-style="bubbles"] .chat-log-main{max-width:min(82%,760px)}
[data-message-style="bubbles"] .chat-log-content{display:inline-block;max-width:100%;margin-top:2px;padding:8px 11px;border:1px solid var(--classic-border);border-radius:4px var(--ui-radius-md) var(--ui-radius-md) var(--ui-radius-md);background:var(--classic-panel-soft);box-shadow:0 3px 12px rgba(18,27,45,.05)}
[data-message-style="bubbles"] .chat-log.own{justify-content:flex-start}
[data-message-style="bubbles"] .chat-log.own .chat-log-content{background:linear-gradient(135deg,color-mix(in srgb,var(--accent) 17%,var(--classic-panel)),color-mix(in srgb,var(--accent2) 8%,var(--classic-panel)));border-color:color-mix(in srgb,var(--accent) 25%,var(--classic-border))}
[data-message-style="bubbles"] .chat-log-head{max-width:100%}

/* Chat background patterns */
[data-bg-pattern="none"] .classic-messages{background-image:none}
[data-bg-pattern="dots"] .classic-messages{background-image:radial-gradient(circle at 1px 1px,color-mix(in srgb,var(--classic-border) 36%,transparent) .8px,transparent .95px);background-size:22px 22px}
[data-bg-pattern="grid"] .classic-messages{background-image:linear-gradient(color-mix(in srgb,var(--classic-border) 25%,transparent) 1px,transparent 1px),linear-gradient(90deg,color-mix(in srgb,var(--classic-border) 25%,transparent) 1px,transparent 1px);background-size:28px 28px}
[data-bg-pattern="glow"] .classic-messages{background-image:radial-gradient(circle at 15% 12%,color-mix(in srgb,var(--accent) 10%,transparent),transparent 28%),radial-gradient(circle at 85% 82%,color-mix(in srgb,var(--accent2) 9%,transparent),transparent 30%)}

/* High contrast */
[data-contrast="high"]{--classic-border:color-mix(in srgb,var(--classic-text) 34%,var(--classic-panel));--classic-muted:color-mix(in srgb,var(--classic-text) 72%,var(--classic-panel))}
[data-contrast="high"] .classic-room.active,[data-contrast="high"] .right-tab.active,[data-contrast="high"] .stage-actions button:hover{outline:2px solid color-mix(in srgb,var(--accent) 55%,transparent);outline-offset:-2px}
[data-contrast="high"] .chat-log-content{font-weight:500}

/* Animation switch */
[data-animations="off"] *,[data-animations="off"] *::before,[data-animations="off"] *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}

/* Preset 1: Classic remains the familiar baseline. */
[data-ui-style="classic"]{
  --classic-shadow:0 5px 22px rgba(26,35,58,.10);
}

/* Preset 2: Modern */
[data-ui-style="modern"]{
  --classic-bg:#edf2f8;
  --classic-panel:#ffffff;
  --classic-panel-soft:#f3f6fa;
  --classic-border:#d9e1eb;
  --classic-text:#172033;
  --classic-muted:#718096;
  --classic-hover:#eaf0f7;
  --classic-shadow:0 16px 42px rgba(35,51,78,.12);
}
[data-ui-style="modern"][data-theme="dark"]{
  --classic-bg:#0b1220;
  --classic-panel:#111b2d;
  --classic-panel-soft:#17243a;
  --classic-border:#263750;
  --classic-text:#eff5ff;
  --classic-muted:#9aa9bf;
  --classic-hover:#1d2b43;
}
[data-ui-style="modern"] .classic-head,[data-ui-style="modern"] .classic-footer{background:color-mix(in srgb,var(--classic-panel) 93%,transparent);backdrop-filter:blur(18px) saturate(1.25)}
[data-ui-style="modern"] .left-panel,[data-ui-style="modern"] .right-panel,[data-ui-style="modern"] .chat-stage{box-shadow:0 10px 35px rgba(24,39,68,.07)}
[data-ui-style="modern"] .left-rail{background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 9%,var(--classic-panel)),var(--classic-panel))}
[data-ui-style="modern"] .community-card{box-shadow:0 7px 20px rgba(26,42,72,.07)}
[data-ui-style="modern"] .classic-room.active{box-shadow:inset 3px 0 0 var(--accent),0 4px 12px color-mix(in srgb,var(--accent) 10%,transparent)}
[data-ui-style="modern"] .classic-send{box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 25%,transparent)}

/* Preset 3: Glass */
[data-ui-style="glass"]{
  --classic-bg:#e9eff9;
  --classic-panel:rgba(255,255,255,.73);
  --classic-panel-soft:rgba(244,248,255,.62);
  --classic-border:rgba(126,145,179,.25);
  --classic-text:#1b2940;
  --classic-muted:#64748b;
  --classic-hover:rgba(255,255,255,.58);
  --classic-shadow:0 18px 50px rgba(44,62,96,.18);
}
[data-ui-style="glass"][data-theme="dark"]{
  --classic-bg:#09111f;
  --classic-panel:rgba(18,29,48,.73);
  --classic-panel-soft:rgba(30,45,70,.62);
  --classic-border:rgba(155,178,216,.19);
  --classic-text:#f0f6ff;
  --classic-muted:#a7b4c8;
  --classic-hover:rgba(69,91,124,.35);
}
[data-ui-style="glass"]{background:radial-gradient(circle at 8% 8%,color-mix(in srgb,var(--accent) 24%,transparent),transparent 32%),radial-gradient(circle at 92% 90%,color-mix(in srgb,var(--accent2) 20%,transparent),transparent 35%),var(--classic-bg)}
[data-ui-style="glass"] .classic-shell{background:transparent;padding:10px;gap:10px}
[data-ui-style="glass"] .classic-head,[data-ui-style="glass"] .classic-footer,[data-ui-style="glass"] .left-panel,[data-ui-style="glass"] .right-panel,[data-ui-style="glass"] .chat-stage,[data-ui-style="glass"] .left-rail{backdrop-filter:blur(22px) saturate(1.35);-webkit-backdrop-filter:blur(22px) saturate(1.35);background:var(--classic-panel);border:1px solid var(--classic-border);box-shadow:var(--classic-shadow)}
[data-ui-style="glass"] .classic-head{margin:8px;border-radius:var(--ui-radius-md);inset:0 0 auto;height:calc(var(--classic-head) - 4px)}
[data-ui-style="glass"] .classic-shell{inset:calc(var(--classic-head) + 7px) 0 calc(var(--classic-foot) + 7px)}
[data-ui-style="glass"] .classic-footer{margin:8px;border-radius:var(--ui-radius-md);inset:auto 0 0;height:calc(var(--classic-foot) - 4px)}
[data-ui-style="glass"] .left-rail,[data-ui-style="glass"] .left-panel,[data-ui-style="glass"] .chat-stage,[data-ui-style="glass"] .right-panel{border-radius:var(--ui-radius-md);overflow:hidden}
[data-ui-style="glass"] .classic-logo{border-right-color:transparent}
[data-ui-style="glass"] .chat-stream-wrap,[data-ui-style="glass"] .classic-messages,[data-ui-style="glass"] .classic-composer,[data-ui-style="glass"] .classic-chat-page .typing{background-color:transparent}
[data-ui-style="glass"] .classic-room.active,[data-ui-style="glass"] .classic-user-item:hover{background:color-mix(in srgb,var(--accent) 12%,rgba(255,255,255,.35))}
@media(max-width:850px){[data-ui-style="glass"] .classic-shell{padding:0;gap:0}[data-ui-style="glass"] .chat-stage{border-radius:0;border-left:0;border-right:0}[data-ui-style="glass"] .classic-head,[data-ui-style="glass"] .classic-footer{margin:0;border-radius:0}}

/* Preset 4: Midnight */
[data-ui-style="midnight"]{
  --classic-bg:#050916;
  --classic-panel:#0b1222;
  --classic-panel-soft:#111b30;
  --classic-border:#1d2a43;
  --classic-text:#eef4ff;
  --classic-muted:#8d9bb2;
  --classic-hover:#15223a;
  --classic-shadow:0 16px 52px rgba(0,0,0,.48);
}
[data-ui-style="midnight"] .classic-head{background:linear-gradient(90deg,#0b1222,#101a31)}
[data-ui-style="midnight"] .left-rail{background:#070d1a}
[data-ui-style="midnight"] .left-panel,[data-ui-style="midnight"] .right-panel{background:linear-gradient(180deg,#0c1425,#09101e)}
[data-ui-style="midnight"] .chat-stage-top,[data-ui-style="midnight"] .panel-toolbar{background:#0e182a}
[data-ui-style="midnight"] .classic-messages{background-color:#090f1d}
[data-ui-style="midnight"] .classic-room.active{background:linear-gradient(90deg,color-mix(in srgb,var(--accent) 24%,#0b1222),#111b30);border-color:color-mix(in srgb,var(--accent) 44%,#1d2a43)}
[data-ui-style="midnight"] .classic-send,[data-ui-style="midnight"] .rail-item.active{box-shadow:0 0 22px color-mix(in srgb,var(--accent) 35%,transparent)}
[data-ui-style="midnight"] .classic-logo img{background:#fff;border-radius:8px;padding:2px 7px}

/* Preset 5: Neon */
[data-ui-style="neon"]{
  --classic-bg:#03050a;
  --classic-panel:#080d14;
  --classic-panel-soft:#0d151f;
  --classic-border:#17303c;
  --classic-text:#eaffff;
  --classic-muted:#79a5ae;
  --classic-hover:#0d2028;
  --classic-shadow:0 0 26px color-mix(in srgb,var(--accent) 13%,transparent);
}
[data-ui-style="neon"] .classic-head,[data-ui-style="neon"] .classic-footer{background:#050a10;border-color:color-mix(in srgb,var(--accent) 35%,#12303a);box-shadow:0 0 22px color-mix(in srgb,var(--accent) 10%,transparent)}
[data-ui-style="neon"] .left-rail{background:linear-gradient(180deg,#060b11,#041016)}
[data-ui-style="neon"] .left-panel,[data-ui-style="neon"] .right-panel,[data-ui-style="neon"] .chat-stage{border-color:color-mix(in srgb,var(--accent) 30%,#17303c)}
[data-ui-style="neon"] .rail-item.active,[data-ui-style="neon"] .classic-send,[data-ui-style="neon"] .classic-room.active .classic-room-icon{box-shadow:0 0 12px var(--accent),0 0 28px color-mix(in srgb,var(--accent) 45%,transparent)}
[data-ui-style="neon"] .classic-room.active{border-color:var(--accent);box-shadow:inset 0 0 18px color-mix(in srgb,var(--accent) 14%,transparent),0 0 12px color-mix(in srgb,var(--accent) 18%,transparent)}
[data-ui-style="neon"] .current-room-avatar,[data-ui-style="neon"] .community-card,[data-ui-style="neon"] .right-info-card{border-color:color-mix(in srgb,var(--accent) 38%,var(--classic-border));box-shadow:inset 0 0 18px color-mix(in srgb,var(--accent) 6%,transparent)}
[data-ui-style="neon"] .chat-log-name,[data-ui-style="neon"] .current-room-copy strong{letter-spacing:.02em}
[data-ui-style="neon"] .chat-log-content a{color:color-mix(in srgb,var(--accent) 72%,#fff);text-shadow:0 0 8px color-mix(in srgb,var(--accent) 55%,transparent)}
[data-ui-style="neon"] .classic-logo img{background:#fff;border-radius:7px;padding:2px 6px;filter:drop-shadow(0 0 8px color-mix(in srgb,var(--accent) 45%,transparent))}

/* Preset 6: Minimal */
[data-ui-style="minimal"]{
  --classic-bg:#f7f7f5;
  --classic-panel:#ffffff;
  --classic-panel-soft:#fafaf8;
  --classic-border:#deded9;
  --classic-text:#20201e;
  --classic-muted:#777771;
  --classic-hover:#f1f1ed;
  --classic-shadow:none;
}
[data-ui-style="minimal"][data-theme="dark"]{
  --classic-bg:#151513;
  --classic-panel:#1d1d1a;
  --classic-panel-soft:#23231f;
  --classic-border:#3a3a34;
  --classic-text:#f2f2ec;
  --classic-muted:#a5a59c;
  --classic-hover:#292925;
}
[data-ui-style="minimal"] .classic-head,[data-ui-style="minimal"] .classic-footer,[data-ui-style="minimal"] .left-panel,[data-ui-style="minimal"] .right-panel{box-shadow:none}
[data-ui-style="minimal"] .left-rail{background:var(--classic-panel-soft)}
[data-ui-style="minimal"] .rail-item.active{background:var(--classic-text);color:var(--classic-panel)}
[data-ui-style="minimal"] .classic-room.active{background:var(--classic-hover);border-color:var(--classic-text);box-shadow:none}
[data-ui-style="minimal"] .classic-room.active .classic-room-icon{background:var(--classic-text);color:var(--classic-panel)}
[data-ui-style="minimal"] .classic-send{background:var(--classic-text);color:var(--classic-panel);box-shadow:none}
[data-ui-style="minimal"] .classic-announcement{background:var(--classic-panel-soft);border-bottom-color:var(--classic-border)}
[data-ui-style="minimal"] .community-card{background:var(--classic-panel);box-shadow:none}
[data-ui-style="minimal"] .classic-messages{background-image:none}

/* Preset 7: Cozy */
[data-ui-style="cozy"]{
  --classic-bg:#f7efe7;
  --classic-panel:#fffaf5;
  --classic-panel-soft:#f8eee5;
  --classic-border:#ead8c8;
  --classic-text:#3b2d25;
  --classic-muted:#8d7465;
  --classic-hover:#f3e4d7;
  --classic-shadow:0 12px 34px rgba(93,61,38,.12);
}
[data-ui-style="cozy"][data-theme="dark"]{
  --classic-bg:#201713;
  --classic-panel:#2b201b;
  --classic-panel-soft:#352720;
  --classic-border:#503b30;
  --classic-text:#fff4e9;
  --classic-muted:#c0a28f;
  --classic-hover:#3e2d25;
}
[data-ui-style="cozy"] .classic-head,[data-ui-style="cozy"] .classic-footer{background:color-mix(in srgb,var(--classic-panel) 92%,#fff0e2);box-shadow:0 5px 22px rgba(100,67,45,.09)}
[data-ui-style="cozy"] .left-rail{background:linear-gradient(180deg,color-mix(in srgb,var(--accent) 8%,var(--classic-panel)),var(--classic-panel-soft))}
[data-ui-style="cozy"] .community-card{background:linear-gradient(145deg,color-mix(in srgb,var(--accent) 10%,var(--classic-panel)),var(--classic-panel));box-shadow:0 8px 22px rgba(99,66,42,.08)}
[data-ui-style="cozy"] .classic-room.active{box-shadow:0 6px 18px color-mix(in srgb,var(--accent) 12%,transparent)}
[data-ui-style="cozy"] .classic-compose-row .message-input{background:var(--classic-panel);box-shadow:inset 0 1px 3px rgba(80,50,30,.05)}
[data-ui-style="cozy"] .classic-send{box-shadow:0 7px 18px color-mix(in srgb,var(--accent) 22%,transparent)}

/* Appearance Studio */
.appearance-modal{width:min(1040px,96vw)!important;max-height:94vh!important}
.appearance-modal .modal-head{align-items:flex-start!important}
.appearance-modal .modal-head h3{font-size:17px!important;margin-bottom:3px!important}
.appearance-subtitle{display:block;color:var(--classic-muted);font-size:10px;line-height:1.45}
.appearance-body{background:color-mix(in srgb,var(--classic-panel-soft) 56%,var(--classic-panel));padding:16px!important}
.appearance-section{padding:14px;border:1px solid var(--classic-border);border-radius:var(--ui-radius-md);background:var(--classic-panel);box-shadow:0 5px 18px rgba(20,28,48,.04)}
.appearance-section-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.appearance-section-head>div{min-width:0}
.appearance-section-head strong,.appearance-section-head small{display:block}
.appearance-section-head strong{font-size:12px}
.appearance-section-head small{margin-top:3px;color:var(--classic-muted);font-size:9px}
.appearance-live-badge{margin-left:auto;padding:4px 7px;border-radius:999px;background:color-mix(in srgb,var(--classic-green) 13%,var(--classic-panel));color:var(--classic-green);font-size:8px;font-weight:900;letter-spacing:.07em}
.theme-preset-grid{display:grid;grid-template-columns:repeat(7,minmax(105px,1fr));gap:8px}
.theme-preset-card{position:relative;min-width:0;padding:7px;border:1px solid var(--classic-border);border-radius:var(--ui-radius-sm);background:var(--classic-panel-soft);color:var(--classic-text);text-align:left;cursor:pointer;transition:transform .16s,border-color .16s,box-shadow .16s}
.theme-preset-card:hover{transform:translateY(-2px);border-color:color-mix(in srgb,var(--accent) 45%,var(--classic-border));box-shadow:0 8px 20px rgba(20,28,48,.09)}
.theme-preset-card.active{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 15%,transparent)}
.theme-preset-card>span:nth-child(2){display:block;padding:7px 2px 2px}
.theme-preset-card strong,.theme-preset-card small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.theme-preset-card strong{font-size:10px}
.theme-preset-card small{margin-top:3px;color:var(--classic-muted);font-size:8px}
.preset-check{display:none;position:absolute;right:5px;top:5px;width:18px;height:18px;border-radius:50%;place-items:center;background:var(--accent);color:#fff;font-size:10px;font-style:normal;font-weight:900}
.theme-preset-card.active .preset-check{display:grid}
.theme-preview{height:62px;display:grid;grid-template-columns:15px 28px 1fr;grid-template-rows:11px 1fr 9px;gap:3px;padding:5px;border-radius:7px;overflow:hidden;background:#eef1f6;border:1px solid #dfe3eb}
.theme-preview:before{content:"";grid-column:1/-1;background:#fff;border-radius:2px}
.theme-preview i{grid-row:2;grid-column:1;background:#7c3aed;border-radius:2px}
.theme-preview b{grid-row:2;grid-column:2;background:#fff;border-radius:2px}
.theme-preview em{grid-row:2;grid-column:3;background:linear-gradient(#fff 0 32%,#f7f8fb 32%);border-radius:2px;position:relative}
.theme-preview em:after{content:"";position:absolute;left:5px;right:9px;top:17px;height:4px;border-radius:4px;background:#d9deea;box-shadow:0 9px 0 #d9deea,0 18px 0 #d9deea}
.theme-preview:after{content:"";grid-column:1/-1;background:#fff;border-radius:2px}
.preview-modern{background:#edf2f8}.preview-modern b,.preview-modern:before,.preview-modern:after{box-shadow:0 3px 8px #73829c22}.preview-modern em{border-radius:5px}
.preview-glass{background:linear-gradient(135deg,#dbeafe,#fae8ff)}.preview-glass:before,.preview-glass:after,.preview-glass b,.preview-glass em{background:#ffffffaa;backdrop-filter:blur(3px)}
.preview-midnight{background:#050916;border-color:#1d2a43}.preview-midnight:before,.preview-midnight:after,.preview-midnight b{background:#0b1222}.preview-midnight em{background:linear-gradient(#111b30 0 32%,#090f1d 32%)}.preview-midnight em:after{background:#33435d;box-shadow:0 9px 0 #33435d,0 18px 0 #33435d}
.preview-neon{background:#03050a;border-color:#0d8999;box-shadow:inset 0 0 12px #00e5ff22}.preview-neon:before,.preview-neon:after,.preview-neon b{background:#080d14}.preview-neon i{background:#00d4e8;box-shadow:0 0 8px #00d4e8}.preview-neon em{background:#0d151f;border:1px solid #00d4e855}.preview-neon em:after{background:#155666;box-shadow:0 9px 0 #155666,0 18px 0 #155666}
.preview-minimal{background:#f7f7f5;border-color:#c9c9c3}.preview-minimal i{background:#20201e}.preview-minimal em{background:#fff}.preview-minimal em:after{height:2px;background:#cfcfca;box-shadow:0 9px 0 #cfcfca,0 18px 0 #cfcfca}
.preview-cozy{background:#f7efe7;border-color:#ead8c8}.preview-cozy:before,.preview-cozy:after,.preview-cozy b{background:#fffaf5}.preview-cozy i{background:#d97706;border-radius:5px}.preview-cozy em{background:#fffaf5;border-radius:6px}.preview-cozy em:after{background:#e6cdbb;box-shadow:0 9px 0 #e6cdbb,0 18px 0 #e6cdbb}
.appearance-options-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}
.appearance-segmented{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;border:1px solid var(--classic-border);border-radius:var(--ui-radius-sm);background:var(--classic-panel-soft)}
.appearance-segmented button{height:34px;border:0;border-radius:calc(var(--ui-radius-sm) - 2px);background:transparent;color:var(--classic-muted);font-size:10px;font-weight:800;cursor:pointer}
.appearance-segmented button.active{background:var(--classic-panel);color:var(--accent);box-shadow:0 2px 8px rgba(20,28,48,.10)}
.accent-swatch-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:7px}
.accent-swatch-grid button{position:relative;width:100%;aspect-ratio:1;border:2px solid var(--classic-panel);outline:1px solid var(--classic-border);border-radius:50%;background:var(--swatch);cursor:pointer;box-shadow:inset 0 0 0 1px #ffffff55}
.accent-swatch-grid button.active{outline:2px solid var(--classic-text);box-shadow:0 0 0 3px color-mix(in srgb,var(--swatch) 25%,transparent),inset 0 0 0 2px #fff}
.accent-swatch-grid button.active:after{content:"✓";position:absolute;inset:0;display:grid;place-items:center;color:#fff;font-size:10px;font-weight:900;text-shadow:0 1px 3px #0007}
.appearance-field-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.appearance-field-grid label{display:flex;flex-direction:column;gap:5px;color:var(--classic-muted);font-size:8px;text-transform:uppercase;font-weight:900;letter-spacing:.04em}
.appearance-field-grid select{width:100%;height:35px;padding:0 9px;border:1px solid var(--classic-border);border-radius:var(--ui-radius-xs);background:var(--classic-panel-soft);color:var(--classic-text);font-size:10px;text-transform:none;font-weight:700;outline:0}
.appearance-field-grid select:focus{border-color:var(--accent);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 13%,transparent)}
.appearance-toggle-list{display:grid;gap:5px;margin-top:10px}
.appearance-toggle-list>label{display:flex;align-items:center;gap:10px;padding:8px 9px;border:1px solid var(--classic-border);border-radius:var(--ui-radius-xs);background:var(--classic-panel-soft);cursor:pointer}
.appearance-toggle-list>label>span{min-width:0;flex:1}
.appearance-toggle-list strong,.appearance-toggle-list small{display:block}
.appearance-toggle-list strong{font-size:10px}
.appearance-toggle-list small{margin-top:2px;color:var(--classic-muted);font-size:8px}
.appearance-toggle-list input{appearance:none;width:34px;height:19px;min-width:34px;border-radius:10px;background:var(--classic-border);position:relative;cursor:pointer;transition:.18s}
.appearance-toggle-list input:after{content:"";position:absolute;top:3px;left:3px;width:13px;height:13px;border-radius:50%;background:#fff;box-shadow:0 1px 4px #0003;transition:.18s}
.appearance-toggle-list input:checked{background:var(--accent)}
.appearance-toggle-list input:checked:after{transform:translateX(15px)}
.appearance-footer{display:flex;align-items:center;gap:10px;margin-top:12px;padding:12px 3px 1px}
.appearance-footer .secondary-btn{width:auto!important;min-width:94px}
.appearance-footer>span{flex:1;text-align:center;color:var(--classic-muted);font-size:10px;font-weight:700}
.appearance-done{width:auto!important;min-width:105px;padding:10px 22px!important}

@media(max-width:900px){
  .theme-preset-grid{grid-template-columns:repeat(4,1fr)}
  .appearance-options-grid{grid-template-columns:1fr}
}
@media(max-width:620px){
  .appearance-body{padding:9px!important}
  .appearance-section{padding:10px}
  .theme-preset-grid{grid-template-columns:repeat(2,1fr)}
  .theme-preset-card:last-child{grid-column:1/-1}
  .appearance-field-grid{grid-template-columns:1fr 1fr}
  .accent-swatch-grid{grid-template-columns:repeat(6,1fr)}
  .appearance-footer{position:sticky;bottom:-9px;z-index:3;margin-left:-9px;margin-right:-9px;padding:10px 12px;background:color-mix(in srgb,var(--classic-panel) 94%,transparent);backdrop-filter:blur(12px);border-top:1px solid var(--classic-border)}
  .appearance-footer>span{display:none}
  .appearance-footer .secondary-btn,.appearance-done{flex:1}
}
@media(max-width:420px){.appearance-field-grid{grid-template-columns:1fr}.theme-preview{height:56px}}

/* Keep variable header/footer heights aligned with compact and spacious density. */
[data-density] .head-option,[data-density] .head-user{height:calc(var(--classic-head) - 1px)}
[data-density] .footer-item{height:calc(var(--classic-foot) - 1px)}
@media(max-width:850px){
  [data-ui-style="glass"] .classic-shell{inset:var(--classic-head) 0 var(--classic-foot)}
  [data-ui-style="glass"] .classic-head{height:var(--classic-head)}
  [data-ui-style="glass"] .classic-footer{height:var(--classic-foot)}
}