/* BSRDMS v16.24.13 — organisation-wide appearance themes.
   This file is the final semantic appearance bridge. The Super Admin selects a
   complete preset; server-generated tokens provide palette, density, radius,
   elevation and hero character everywhere without page-specific recolouring. */

html{
 --control-height:var(--appearance-control-height,44px)!important;
 --ui-radius-sm:calc(var(--brand-radius,16px) * .62)!important;
 --ui-radius:var(--brand-radius,16px)!important;
 --ui-radius-lg:calc(var(--brand-radius,16px) * 1.35)!important;
 --ui-shadow-sm:var(--appearance-shadow-sm,0 4px 14px rgba(15,35,52,.055))!important;
 --ui-shadow:var(--appearance-shadow,0 12px 34px rgba(15,35,52,.085))!important;
 --ui-shadow-lg:var(--appearance-shadow-lg,0 18px 46px rgba(15,35,52,.13))!important;
}

/* Shared surface/control consumption moved to design-system.css in v16.25.3.
   This file now supplies appearance tokens, preset previews and settings UI. */

/* Theme-dependent hero elevation while design-system.css owns contrast safety. */
html body :is(
 .v14-hero,.management-hero,.enterprise-hero,.work-hero,.workspace-hero,
 .learning-hero,.notes-hero,.school-profile-hero,.builder-hero,.governance-hero,
 .meeting-hub-hero,.permission-hero,.memo-hero,.leadership-hero
){
 box-shadow:var(--appearance-shadow-lg)!important;
}

/* Settings — curated appearance library ---------------------------------- */
.theme-library-intro{margin:-3px 0 15px;color:var(--brand-muted);line-height:1.55;max-width:78ch}
.appearance-theme-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin:0 0 18px}
.appearance-theme-card{position:relative;display:grid;gap:10px;min-width:0;margin:0;padding:14px;border:2px solid var(--brand-line);border-radius:16px;background:var(--brand-surface);cursor:pointer;transition:border-color .16s ease,box-shadow .16s ease,transform .16s ease}
.appearance-theme-card:hover{border-color:color-mix(in srgb,var(--brand-primary) 45%,var(--brand-line));transform:translateY(-1px);box-shadow:var(--appearance-shadow-sm)}
.appearance-theme-card.active{border-color:var(--brand-primary);box-shadow:0 0 0 3px color-mix(in srgb,var(--brand-primary) 13%,transparent),var(--appearance-shadow-sm)}
.appearance-theme-card>input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.appearance-theme-card:focus-within{outline:3px solid color-mix(in srgb,var(--brand-primary) 30%,transparent);outline-offset:2px}
.theme-card-top{display:flex;align-items:center;justify-content:space-between;gap:8px}
.theme-card-top strong{font-size:.95rem;color:var(--brand-text)}
.theme-card-top em{font-style:normal;font-size:.64rem;font-weight:850;letter-spacing:.05em;text-transform:uppercase;padding:5px 7px;border-radius:999px;background:color-mix(in srgb,var(--brand-primary) 9%,var(--brand-surface));color:var(--brand-primary)}
.appearance-theme-card.active .theme-card-top em{background:var(--brand-primary);color:var(--brand-on-primary)}
.theme-card-preview{height:104px;display:grid;grid-template-columns:24px repeat(3,1fr);grid-template-rows:20px 48px 16px;gap:6px;padding:8px;border:1px solid var(--brand-line);border-radius:12px;background:var(--brand-page);overflow:hidden}
.theme-mini-nav{grid-row:1/-1;border-radius:7px;background:var(--brand-nav)}
.theme-mini-hero{grid-column:2/-1;border-radius:calc(var(--brand-radius) * .45);background:linear-gradient(var(--appearance-hero-angle,128deg),var(--brand-hero-start),var(--brand-hero-mid) 65%,var(--brand-hero-end))}
.theme-card-preview u{border:1px solid var(--brand-line);border-radius:calc(var(--brand-radius) * .34);background:var(--brand-surface);text-decoration:none}
.theme-card-preview small{height:5px;align-self:center;border-radius:99px;background:color-mix(in srgb,var(--brand-text) 16%,var(--brand-surface))}
.theme-card-preview small:last-child{background:var(--brand-accent)}
.theme-card-copy{display:grid;gap:3px;min-width:0}.theme-card-copy b{font-size:.78rem;color:var(--brand-text)}.theme-card-copy small{font-size:.69rem;line-height:1.42;color:var(--brand-muted)}
.custom-theme-card .theme-card-top em{background:color-mix(in srgb,var(--brand-accent) 16%,var(--brand-surface));color:color-mix(in srgb,var(--brand-accent) 75%,var(--brand-text))}

.advanced-appearance{margin:0 0 24px;border:1px solid var(--brand-line);border-radius:14px;background:color-mix(in srgb,var(--brand-page) 55%,var(--brand-surface));overflow:hidden}
.advanced-appearance>summary{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:14px 16px;cursor:pointer;font-weight:800;color:var(--brand-text);list-style:none}
.advanced-appearance>summary::-webkit-details-marker{display:none}.advanced-appearance>summary:after{content:'+';font-size:1.15rem;color:var(--brand-primary)}.advanced-appearance[open]>summary:after{content:'−'}
.advanced-appearance>summary small{font-weight:500;color:var(--brand-muted)}
.advanced-appearance-body{padding:4px 16px 17px;border-top:1px solid var(--brand-line)}
.appearance-tuning-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.appearance-tuning-grid label{margin:0}.appearance-tuning-grid select{margin-top:7px}
.appearance-preview .preview-theme-label{display:block;margin:0 0 2px;font-size:.6rem;font-weight:900;letter-spacing:.12em;color:var(--brand-primary)}
.appearance-preview .preview-theme-name{margin:0 0 11px;color:var(--brand-text);font-size:1.05rem}
.appearance-preview .preview-hero{background:linear-gradient(var(--appearance-hero-angle,128deg),var(--brand-hero-start),var(--brand-hero-mid) 65%,var(--brand-hero-end))!important;color:var(--brand-on-hero,#fff)!important}
.appearance-preview .preview-cards i{box-shadow:var(--appearance-shadow-sm)}
.branding-savebar strong{color:var(--brand-text)}

@media(max-width:900px){
 .appearance-theme-grid{grid-template-columns:1fr}
 .appearance-tuning-grid{grid-template-columns:1fr}
 .advanced-appearance>summary{align-items:flex-start;flex-direction:column;gap:3px}
}
@media(max-width:760px){
 .appearance-theme-card{padding:12px}.theme-card-preview{height:92px;grid-template-rows:18px 40px 14px}
 .appearance-preview{position:static!important}.theme-library-intro{font-size:.88rem}
}

@media(prefers-reduced-motion:reduce){.appearance-theme-card{transition:none}}