/* SchoolHub Shared UI · design system (v2-derived from legacy Blazor app)
   Packaged inside SchoolHub.Shared (RCL). Both the Web app and the future
   MAUI Hybrid app reference it via _content/SchoolHub.Shared/css/sh-design.css */

:root {
  --sh-primary:        #FC7A1E;
  --sh-primary-2:      #E05A00;
  --sh-primary-soft:   #FEEAD7;
  --sh-primary-grad:   linear-gradient(135deg,#FFA94D 0%,#FC7A1E 100%);
  --sh-accent:         #8661D9;
  --sh-accent-soft:    #ECE5FA;

  --sh-good:           #27A55A;  --sh-good-soft: #E7F6EC;
  --sh-bad:            #E5506E;  --sh-bad-soft:  #FDEAEF;
  --sh-warn:           #FF8A36;  --sh-warn-soft: #FEF0E5;
  --sh-info:           #3DB4EB;  --sh-info-soft: #E5F4FC;
  --sh-teal:           #1FBFA8;
  --sh-yellow:         #F4B740;

  --sh-bg:             #F3F1FA;
  --sh-bg-g1:          #E9EEFE;
  --sh-bg-g2:          #E8F3EB;
  --sh-bg-g3:          #F3E8F4;
  --sh-card:           #FFFFFF;
  --sh-card-2:         #FAFBFF;
  --sh-chip:           #F4F6FC;

  --sh-ink:            #1C1F33;
  --sh-ink-2:          #3F4458;
  --sh-ink-3:          #6E738A;
  --sh-ink-4:          #9A9FB5;
  --sh-ink-5:          #C6CADC;
  --sh-line:           #E9ECF5;
  --sh-line-2:         #F2F4FA;

  --sh-shadow-sm:      0 1px 2px rgba(28,31,51,.05),0 1px 0 rgba(28,31,51,.02);
  --sh-shadow-md:      0 1px 2px rgba(28,31,51,.05),0 6px 24px -10px rgba(28,31,51,.1);

  --sh-topnav-bg:      rgba(255,255,255,.82);
  --sh-body-bg-img:
    radial-gradient(1200px 800px at 0% 0%, var(--sh-bg-g1) 0%, transparent 55%),
    radial-gradient(900px 700px at 100% 15%, var(--sh-bg-g3) 0%, transparent 55%),
    radial-gradient(1100px 700px at 30% 100%, var(--sh-bg-g2) 0%, transparent 55%),
    var(--sh-bg);
}

html[data-mode="dark"] {
  --sh-bg:#0F1220; --sh-bg-g1:#1C2140; --sh-bg-g2:#192235; --sh-bg-g3:#231836;
  --sh-card:#1A1E2E; --sh-card-2:#151827; --sh-chip:#23283B;
  --sh-primary-soft:#1E2650; --sh-accent-soft:#241A3E;
  --sh-ink:#F3F5FB; --sh-ink-2:#C8CCD8; --sh-ink-3:#9299AD; --sh-ink-4:#5E657A; --sh-ink-5:#3A3F52;
  --sh-line:#2A2F44; --sh-line-2:#20253A;
  --sh-topnav-bg: rgba(26,30,46,.82);
  --sh-shadow-sm: 0 1px 0 rgba(255,255,255,.02),0 1px 2px rgba(0,0,0,.35);
  --sh-shadow-md: 0 1px 0 rgba(255,255,255,.02),0 10px 24px -10px rgba(0,0,0,.5);
}

html.sh, html.sh body {
  margin:0; padding:0;
  background: var(--sh-bg); color: var(--sh-ink);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px; line-height: 1.55; font-weight: 500; letter-spacing: -.002em;
  -webkit-font-smoothing: antialiased;
}
html.sh body {
  min-height: 100vh;
  background: var(--sh-body-bg-img);
  background-attachment: fixed;
  transition: background .4s, color .3s;
}
html.sh a { color: inherit; text-decoration: none; }
html.sh button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
html.sh ::selection { background: var(--sh-primary-soft); color: var(--sh-primary-2); }
html.sh :focus-visible { outline: 2px solid var(--sh-primary); outline-offset: 2px; }
/* Blazor's <FocusOnNavigate> programmatically focuses the page <h1> after every
   route change for screen readers. The h1 isn't an interactive target, so we
   suppress the outline — keyboard users skip it on Tab anyway. The html.sh
   prefix is required to outweigh the rule above (which has the same prefix). */
html.sh h1:focus, html.sh h1:focus-visible { outline: none; }

/* ═══════════════ TOP NAV (web layout) ═══════════════ */
.sh-topnav {
  position: sticky; top: 0; z-index: 50; width: 100%;
  background: var(--sh-topnav-bg);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--sh-line);
}
.sh-topnav .inner {
  max-width: 1440px; margin: 0 auto; padding: 0 16px; height: 60px;
  display: flex; gap: 12px; align-items: center; overflow: hidden;
}
.sh-brand { display: flex; align-items: center; gap: 9px; flex: 0 0 auto; color: var(--sh-ink); }
.sh-brand .mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: var(--sh-primary-grad);
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 16px; letter-spacing: -.04em;
  box-shadow: 0 8px 16px -6px color-mix(in srgb, var(--sh-primary) 45%, transparent);
  transition: transform .3s; flex: 0 0 32px;
}
.sh-brand:hover .mark { transform: rotate(-6deg) scale(1.06); }
.sh-brand .wm { font-weight: 800; font-size: 17px; letter-spacing: -.025em; line-height: 1; white-space: nowrap; }
.sh-brand .wm em { font-style: normal;
  background: linear-gradient(135deg, var(--sh-primary), var(--sh-accent));
  -webkit-background-clip: text; background-clip: text; color: transparent; }
.sh-brand .wm .sub { display: block; font-size: 9.5px; font-weight: 500; color: var(--sh-ink-3); letter-spacing: .02em; margin-top: 2px; }

.sh-topnav .nav-wrap { flex: 1 1 auto; min-width: 0; position: relative; }
.sh-topnav .nav { display: flex; align-items: center; gap: 0; min-width: 0; overflow-x: auto; scrollbar-width: none; padding: 0 4px; }
.sh-topnav .nav::-webkit-scrollbar { display: none; }
.sh-topnav .nav a {
  padding: 7px 10px; font-size: 12.5px; font-weight: 600; color: var(--sh-ink-3);
  border-radius: 9px; display: inline-flex; align-items: center; gap: 6px;
  transition: background .18s, color .18s, transform .15s;
  position: relative; white-space: nowrap; flex: 0 0 auto;
}
.sh-topnav .nav a svg, .sh-topnav .nav a i { width: 14px; height: 14px; flex: 0 0 14px; font-size: 14px; }
.sh-topnav .nav a:hover { background: var(--sh-chip); color: var(--sh-ink); transform: translateY(-1px); }
.sh-topnav .nav a.active { background: var(--sh-primary-soft); color: var(--sh-primary); }
.sh-topnav .nav a.active::after {
  content: ""; position: absolute; left: 10px; right: 10px; bottom: -11px;
  height: 2px; background: var(--sh-primary); border-radius: 2px;
}
.sh-topnav .nav a .nav-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 16px; height: 16px; padding: 0 5px;
  border-radius: 999px; background: var(--sh-bad); color: #fff;
  font-size: 9.5px; font-weight: 700; line-height: 1;
}

.sh-topnav .right { display: flex; align-items: center; gap: 7px; flex: 0 0 auto; }
.sh-topnav .icn-btn {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--sh-card); border: 1px solid var(--sh-line);
  display: grid; place-items: center; color: var(--sh-ink-2); position: relative;
  transition: background .15s, border-color .15s, color .15s, transform .15s;
}
.sh-topnav .icn-btn svg, .sh-topnav .icn-btn i { width: 16px; height: 16px; font-size: 16px; }
.sh-topnav .icn-btn:hover { border-color: var(--sh-primary); color: var(--sh-primary); background: var(--sh-primary-soft); transform: translateY(-1px) rotate(-4deg); }
.sh-topnav .icn-btn .dot {
  position: absolute; top: 6px; right: 6px;
  min-width: 16px; height: 16px; padding: 0 4px;
  border-radius: 999px; background: var(--sh-bad); color: #fff;
  font-size: 9px; font-weight: 700; display: grid; place-items: center;
  border: 2px solid var(--sh-card);
}
.sh-topnav .avatar {
  width: 34px; height: 34px; border-radius: 9px;
  background: linear-gradient(135deg, var(--sh-accent), var(--sh-primary));
  color: #fff; display: grid; place-items: center;
  font-weight: 700; font-size: 13px; letter-spacing: -.02em;
  border: 2px solid var(--sh-card); box-shadow: 0 0 0 1px var(--sh-line);
  transition: transform .2s, box-shadow .2s;
}
.sh-topnav .avatar:hover { transform: scale(1.08) rotate(3deg); }

.sh-topnav .branch-chip {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 10px 5px 6px; border-radius: 999px;
  background: var(--sh-chip); border: 1px solid var(--sh-line);
  font-size: 12px; font-weight: 600; color: var(--sh-ink-2);
  white-space: nowrap; cursor: pointer;
}
.sh-topnav .branch-chip:hover { border-color: var(--sh-primary); color: var(--sh-primary); }
.sh-topnav .branch-chip .av {
  width: 22px; height: 22px; border-radius: 999px;
  background: linear-gradient(135deg, #0EA5E9, #0369A1);
  color: #fff; display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
}

/* ═══════════════ BOTTOM NAV (maui layout) ═══════════════ */
.sh-bottomnav {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 50;
  background: var(--sh-card); border: 1px solid var(--sh-line);
  border-radius: 999px;
  box-shadow: 0 14px 32px -10px rgba(28,31,51,.18), 0 2px 6px rgba(28,31,51,.06);
  display: flex; align-items: center; justify-content: space-around;
  padding: 6px;
  max-width: 540px; margin: 0 auto;
}
.sh-bottomnav .item {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 6px 4px; color: var(--sh-ink-3); border-radius: 999px;
  font-size: 10.5px; font-weight: 600; letter-spacing: .01em;
}
.sh-bottomnav .item .bubble {
  width: 32px; height: 32px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--sh-ink-2); transition: background .15s, color .15s, transform .15s;
}
.sh-bottomnav .item .bubble svg { width: 18px; height: 18px; }
.sh-bottomnav .item.active { color: var(--sh-primary); }
.sh-bottomnav .item.active .bubble { background: var(--sh-primary-soft); color: var(--sh-primary); transform: translateY(-2px); }
.sh-bottomnav .item.fab .bubble {
  width: 46px; height: 46px;
  background: var(--sh-primary-grad); color: #fff;
  box-shadow: 0 12px 24px -10px color-mix(in srgb, var(--sh-primary) 55%, transparent);
}
.sh-bottomnav .item.fab .bubble svg { width: 22px; height: 22px; }

/* ═══════════════ MAUI top bar (compact) ═══════════════ */
.sh-mauinav {
  position: sticky; top: 0; z-index: 40;
  background: var(--sh-topnav-bg);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--sh-line);
  padding: 12px 16px;
}
.sh-mauinav .row { display: flex; align-items: center; gap: 12px; }
.sh-mauinav .greet { flex: 1; min-width: 0; }
.sh-mauinav .greet .hello { font-size: 12px; color: var(--sh-ink-3); font-weight: 500; }
.sh-mauinav .greet .name  { font-size: 16px; font-weight: 800; color: var(--sh-ink); letter-spacing: -.02em; }
.sh-mauinav .branch-row {
  display: flex; align-items: center; gap: 8px;
  margin-top: 8px; padding: 6px 10px 6px 6px;
  background: var(--sh-chip); border: 1px solid var(--sh-line);
  border-radius: 999px; width: fit-content;
  font-size: 11.5px; color: var(--sh-ink-2); font-weight: 600;
}
.sh-mauinav .branch-row .av {
  width: 18px; height: 18px; border-radius: 50%;
  background: linear-gradient(135deg, #0EA5E9, #0369A1);
  color: #fff; display: grid; place-items: center;
  font-size: 9px; font-weight: 700;
}

/* ═══════════════ Page shells ═══════════════ */
.sh-page         { max-width: 1440px; margin: 0 auto; padding: 28px 24px 56px; }
.sh-page-mobile  { padding: 16px 14px 110px; max-width: 720px; margin: 0 auto; }

.sh-ph { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 24px; flex-wrap: wrap; }
.sh-ph h1 { font-size: 26px; font-weight: 800; letter-spacing: -.025em; margin: 0 0 5px; color: var(--sh-ink); line-height: 1.1; }
.sh-ph .sub { font-size: 13px; color: var(--sh-ink-3); }
.sh-ph .actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ═══════════════ Buttons ═══════════════ */
.sh-btn { display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; font-size: 13.5px; font-weight: 600; border-radius: 12px;
  transition: transform .12s, box-shadow .15s, background .15s; border: 0; cursor: pointer; }
.sh-btn.primary { background: var(--sh-primary-grad); color: #fff;
  box-shadow: 0 8px 18px -8px color-mix(in srgb, var(--sh-primary) 55%, transparent); }
.sh-btn.primary:hover { transform: translateY(-1px); }
.sh-btn.ghost  { background: var(--sh-card); color: var(--sh-ink-2); border: 1px solid var(--sh-line); }
.sh-btn.ghost:hover { border-color: var(--sh-primary); color: var(--sh-primary); }
.sh-btn svg, .sh-btn i { width: 16px; height: 16px; font-size: 16px; }

/* ═══════════════ KPI / stat cards ═══════════════ */
.sh-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-bottom: 18px; }
.sh-stat  { background: var(--sh-card); border: 1px solid var(--sh-line); border-radius: 18px; padding: 18px;
  display: flex; align-items: center; gap: 16px; box-shadow: var(--sh-shadow-sm);
  transition: transform .15s, box-shadow .15s; }
.sh-stat:hover { transform: translateY(-2px); box-shadow: var(--sh-shadow-md); }
.sh-stat .ico { width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; flex: 0 0 56px; }
.sh-stat .ico.warn   { background: var(--sh-warn-soft);   color: var(--sh-warn); }
.sh-stat .ico.info   { background: var(--sh-info-soft);   color: var(--sh-info); }
.sh-stat .ico.good   { background: var(--sh-good-soft);   color: var(--sh-good); }
.sh-stat .ico.bad    { background: var(--sh-bad-soft);    color: var(--sh-bad); }
.sh-stat .ico.purple { background: var(--sh-accent-soft); color: var(--sh-accent); }
.sh-stat .ico svg, .sh-stat .ico i { width: 26px; height: 26px; font-size: 24px; }
.sh-stat .txt .v { font-size: 22px; font-weight: 800; color: var(--sh-ink); letter-spacing: -.03em; line-height: 1; margin-bottom: 4px; }
.sh-stat .txt .l { font-size: 13px; color: var(--sh-ink-3); font-weight: 500; }
.sh-stat .txt .delta { font-size: 11px; font-weight: 700; margin-top: 4px; padding: 1px 6px; border-radius: 999px; display: inline-flex; align-items: center; gap: 3px; }
.sh-stat .txt .delta.up   { color: var(--sh-good); background: var(--sh-good-soft); }
.sh-stat .txt .delta.down { color: var(--sh-bad);  background: var(--sh-bad-soft); }

.sh-kpi-rail { display: flex; gap: 12px; overflow-x: auto; scroll-snap-type: x mandatory;
  padding: 4px 14px 12px; margin: 0 -14px; scrollbar-width: none; }
.sh-kpi-rail::-webkit-scrollbar { display: none; }
.sh-kpi-rail .sh-stat { min-width: 250px; scroll-snap-align: start; }

/* ═══════════════ Cards ═══════════════ */
.sh-card { background: var(--sh-card); border: 1px solid var(--sh-line); border-radius: 20px; padding: 20px 22px; box-shadow: var(--sh-shadow-sm); }
/* When a SHCombo dropdown is open inside a card, lift the card so its panel
   paints above sibling cards / sticky footers. */
.sh-card:has(.sh-cb.open) { position: relative; z-index: 50; }
.sh-card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.sh-card-head h3 { font-size: 15.5px; font-weight: 700; letter-spacing: -.015em; margin: 0; color: var(--sh-ink); }
.sh-card-head .lk { color: var(--sh-primary); font-size: 12.5px; font-weight: 600; }

.sh-grid-2    { display: grid; grid-template-columns: 2fr 1fr; gap: 16px; margin-bottom: 16px; }
.sh-grid-2-eq { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }

/* ═══════════════ Pills ═══════════════ */
.sh-pill { display: inline-flex; align-items: center; gap: 6px;
  padding: 5px 12px; border-radius: 999px;
  font-size: 11.5px; font-weight: 700; letter-spacing: .01em; }
.sh-pill.good   { background: var(--sh-good-soft);   color: var(--sh-good); }
.sh-pill.bad    { background: var(--sh-bad-soft);    color: var(--sh-bad); }
.sh-pill.warn   { background: var(--sh-warn-soft);   color: var(--sh-warn); }
.sh-pill.info   { background: var(--sh-info-soft);   color: var(--sh-info); }
.sh-pill.purple { background: var(--sh-accent-soft); color: var(--sh-accent); }
.sh-pill.na     { background: var(--sh-chip);        color: var(--sh-ink-3); }

/* ═══════════════ Activity / schedule rows ═══════════════ */
.sh-act { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--sh-line-2); }
.sh-act:last-child { border-bottom: 0; }
.sh-act .body { flex: 1; min-width: 0; }
.sh-act .body .title { font-weight: 600; color: var(--sh-ink); font-size: 13.5px; }
.sh-act .body .meta  { font-size: 11.5px; color: var(--sh-ink-3); margin-top: 2px; }

.sh-sched-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--sh-line-2); }
.sh-sched-row:last-child { border-bottom: 0; }
.sh-sched-row .time { width: 64px; font-variant-numeric: tabular-nums; color: var(--sh-ink-3); font-weight: 600; font-size: 12.5px; }
.sh-sched-row .dot  { width: 8px; height: 8px; border-radius: 50%; background: var(--sh-primary); flex: 0 0 8px; }
.sh-sched-row.now .dot { background: var(--sh-good); box-shadow: 0 0 0 4px var(--sh-good-soft); }
.sh-sched-row .info { flex: 1; min-width: 0; }
.sh-sched-row .info .title { font-weight: 600; color: var(--sh-ink); font-size: 13.5px; }
.sh-sched-row .info .sub   { font-size: 11.5px; color: var(--sh-ink-3); margin-top: 2px; }

/* ═══════════════ Quick actions ═══════════════ */
.sh-quick     { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.sh-quick a   { display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 14px 8px; background: var(--sh-card); border: 1px solid var(--sh-line); border-radius: 14px;
  font-size: 11.5px; font-weight: 600; color: var(--sh-ink-2); text-align: center; }
.sh-quick a:hover { border-color: var(--sh-primary); color: var(--sh-primary); }
.sh-quick a .ico { width: 36px; height: 36px; border-radius: 10px;
  background: var(--sh-primary-soft); color: var(--sh-primary);
  display: grid; place-items: center; font-size: 16px; }

.sh-quick-web { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sh-quick-web a { display: flex; align-items: center; gap: 12px; padding: 12px 14px;
  background: var(--sh-card); border: 1px solid var(--sh-line); border-radius: 12px;
  font-weight: 600; color: var(--sh-ink-2); }
.sh-quick-web a:hover { border-color: var(--sh-primary); background: var(--sh-primary-soft); color: var(--sh-primary); }
.sh-quick-web a .ico { width: 34px; height: 34px; border-radius: 10px;
  background: var(--sh-primary-soft); color: var(--sh-primary);
  display: grid; place-items: center; font-size: 16px; flex: 0 0 34px; }

/* ═══════════════ Personalization swatches ═══════════════ */
.sh-pp-card { background: var(--sh-card); border: 1px solid var(--sh-line); border-radius: 18px; padding: 20px 24px; margin-bottom: 16px; box-shadow: var(--sh-shadow-sm); }
.sh-pp-card h3 { font-size: 15px; font-weight: 700; color: var(--sh-primary); margin: 0 0 8px; }
.sh-pp-card .sub { color: var(--sh-ink-3); font-size: 13px; margin: 0 0 18px; }
.sh-swatches { display: grid; gap: 8px; }
.sh-swatches.n15 { grid-template-columns: repeat(15, minmax(0, 1fr)); }
.sh-swatches.n12 { grid-template-columns: repeat(12, minmax(0, 1fr)); }
.sh-swatches.n5  { grid-template-columns: repeat(5, minmax(0, 90px)); gap: 16px; }
.sh-sw { display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 6px 2px; border: 0; background: none; cursor: pointer; border-radius: 10px;
  transition: background .15s; }
.sh-sw:hover { background: var(--sh-chip); }
.sh-sw .cc { width: 40px; height: 40px; border-radius: 50%;
  box-shadow: inset 0 0 0 1px rgba(28,31,51,.08), 0 2px 8px -4px rgba(28,31,51,.2);
  transition: transform .25s cubic-bezier(.3,.9,.4,1.3), box-shadow .3s; display: grid; place-items: center; }
.sh-sw:hover .cc { transform: scale(1.12) rotate(-3deg); }
.sh-sw.on .cc { box-shadow: inset 0 0 0 1px rgba(28,31,51,.08), 0 0 0 2px var(--sh-card), 0 0 0 4px var(--sh-primary); }
.sh-sw .lb { font-size: 11px; font-weight: 500; color: var(--sh-ink-3); white-space: nowrap; line-height: 1; }
.sh-sw.on .lb { color: var(--sh-ink); font-weight: 700; }

.sh-sw[data-theme="default"] .cc { background: linear-gradient(135deg,#FFA94D,#FC7A1E); }
.sh-sw[data-theme="blue"]    .cc { background: #2A3FCD; }
.sh-sw[data-theme="indigo"]  .cc { background: #5E3ED8; }
.sh-sw[data-theme="purple"]  .cc { background: #8661D9; }
.sh-sw[data-theme="pink"]    .cc { background: #D84B94; }
.sh-sw[data-theme="red"]     .cc { background: #E5506E; }
.sh-sw[data-theme="orange"]  .cc { background: #FF8A36; }
.sh-sw[data-theme="yellow"]  .cc { background: #F4B740; }
.sh-sw[data-theme="green"]   .cc { background: #27A55A; }
.sh-sw[data-theme="teal"]    .cc { background: #1FBFA8; }
.sh-sw[data-theme="cyan"]    .cc { background: #3DB4EB; }
.sh-sw[data-theme="grey"]    .cc { background: #7E8398; }
.sh-sw[data-theme="brown"]   .cc { background: #8B5A3C; }
.sh-sw[data-theme="choco"]   .cc { background: #4D2E1E; }
.sh-sw[data-theme="black"]   .cc { background: #1C1F33; }
.sh-sw[data-accent="blue"]   .cc { background: #3A62E4; }
.sh-sw[data-accent="purple"] .cc { background: #8661D9; }
.sh-sw[data-accent="rose"]   .cc { background: #E5506E; }
.sh-sw[data-accent="teal"]   .cc { background: #1FBFA8; }
.sh-sw[data-accent="amber"]  .cc { background: #F4B740; }
.sh-sw[data-bg="none"]   .cc { background: transparent; border: 1.5px dashed var(--sh-ink-4); box-shadow: none; }
.sh-sw[data-bg="white"]  .cc { background: #FFFFFF; box-shadow: inset 0 0 0 1.5px var(--sh-line); }
.sh-sw[data-bg="theme"]  .cc { background: linear-gradient(135deg,color-mix(in srgb,var(--sh-primary) 30%,white),color-mix(in srgb,var(--sh-primary) 10%,white)); }
.sh-sw[data-bg="grad-1"] .cc { background: linear-gradient(135deg,#E9EEFE,#C3D7FC); }
.sh-sw[data-bg="grad-2"] .cc { background: linear-gradient(135deg,#E8F7F4,#BEE9DF); }
.sh-sw[data-bg="grad-3"] .cc { background: linear-gradient(135deg,#FCE7F0,#F5C5D8); }
.sh-sw[data-bg="grad-4"] .cc { background: linear-gradient(135deg,#F6F1E4,#E6D9B0); }
.sh-sw[data-bg="grad-5"] .cc { background: linear-gradient(135deg,#F3E8F4,#D6B7D9); }
.sh-sw[data-bg="grad-6"] .cc { background: linear-gradient(135deg,#FFF0E5,#FBCAA9); }
.sh-sw[data-bg="grad-7"] .cc { background: linear-gradient(135deg,#E8F7FC,#B2E5F2); }
.sh-sw[data-bg="grad-8"] .cc { background: linear-gradient(135deg,#FFF8DC,#F5E6A3); }
.sh-sw[data-bg="grad-9"] .cc { background: linear-gradient(135deg,#EEECEA,#D3CCC0); }

.sh-toggle { display: flex; align-items: center; gap: 12px; }
.sh-toggle .lb { font-size: 13px; font-weight: 600; color: var(--sh-ink-3); min-width: 36px; }
.sh-toggle .lb.on { color: var(--sh-ink); }
.sh-switch { position: relative; width: 72px; height: 34px; border-radius: 999px;
  background: linear-gradient(90deg,#FF8A36,#FF4F8E); cursor: pointer;
  box-shadow: inset 0 2px 6px rgba(0,0,0,.1); transition: background .3s; }
.sh-switch.dark { background: linear-gradient(90deg,#2A3FCD,#0F1220); }
.sh-switch .knob { position: absolute; top: 3px; left: 3px;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--sh-card); display: grid; place-items: center;
  transition: left .3s cubic-bezier(.3,.8,.4,1.2), background .3s, color .3s;
  box-shadow: 0 3px 6px rgba(0,0,0,.18); color: #FF8A36; }
.sh-switch.on .knob { left: 41px; color: #2A3FCD; }
.sh-switch .knob svg { width: 16px; height: 16px; }

/* ═══════════════ Toasts (stack host) ═══════════════ */
.sh-toast-host {
  position: fixed; right: 24px; bottom: 24px; z-index: 60;
  display: flex; flex-direction: column; gap: 10px;
  pointer-events: none; max-width: min(420px, calc(100vw - 48px));
}
.sh-toast {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px 14px; border-radius: 12px;
  font-size: 13px; font-weight: 600;
  background: var(--sh-ink); color: var(--sh-card);
  box-shadow: 0 20px 40px -16px rgba(0,0,0,.35);
  pointer-events: auto;
  animation: sh-fade-up .25s cubic-bezier(.3,.8,.4,1.1) both;
}
.sh-toast.t-good { background: var(--sh-good); color: #fff; }
.sh-toast.t-warn { background: var(--sh-warn); color: #1f2937; }
.sh-toast.t-bad  { background: var(--sh-bad);  color: #fff; }
.sh-toast.t-info { background: var(--sh-ink);  color: var(--sh-card); }
.sh-toast .x {
  background: transparent; border: 0; color: inherit;
  font-size: 18px; line-height: 1; padding: 0 4px; cursor: pointer; opacity: .85;
}
.sh-toast .x:hover { opacity: 1; }

/* ═══════════════ Modal ═══════════════ */
.sh-modal-backdrop {
  position: fixed; inset: 0; z-index: 70;
  background: rgba(15,18,28,.55); backdrop-filter: blur(2px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px; animation: sh-fade-up .18s ease-out both;
}
.sh-modal {
  background: var(--sh-card); color: var(--sh-ink);
  width: min(560px, 100%); max-height: calc(100vh - 48px); overflow: auto;
  border-radius: 16px; box-shadow: 0 30px 60px -20px rgba(0,0,0,.45);
  display: flex; flex-direction: column;
  animation: sh-fade-up .22s cubic-bezier(.3,.8,.4,1.1) both;
}
.sh-modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--sh-line);
}
.sh-modal-head h3 { margin: 0; font-size: 15px; font-weight: 700; letter-spacing: -.01em; }
.sh-modal-head .x {
  background: transparent; border: 0; color: var(--sh-ink-3);
  font-size: 22px; line-height: 1; padding: 2px 8px; border-radius: 8px; cursor: pointer;
}
.sh-modal-head .x:hover { background: var(--sh-line); color: var(--sh-ink); }
.sh-modal-body { padding: 18px 20px; font-size: 13px; line-height: 1.5; }
.sh-modal-foot {
  display: flex; justify-content: flex-end; gap: 10px;
  padding: 14px 20px; border-top: 1px solid var(--sh-line);
}

/* ═══════════════ Field ═══════════════ */
.sh-field {
  display: flex; flex-direction: column; gap: 4px;
  font-size: 12.5px; color: var(--sh-ink-2);
}
.sh-field-label { font-weight: 600; color: var(--sh-ink-2); display: inline-flex; gap: 4px; }
.sh-field-req { color: var(--sh-bad); font-weight: 700; }
.sh-field-hint { color: var(--sh-ink-4); font-size: 11.5px; }
.sh-field-error { color: var(--sh-bad); font-size: 11.5px; font-weight: 600; }
.sh-field.has-error .sh-input,
.sh-field.has-error select.sh-input,
.sh-field.has-error textarea.sh-input {
  border-color: var(--sh-bad);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--sh-bad) 18%, transparent);
}

.sh-input.compact {
  padding: 6px 10px; font-size: 12.5px; min-width: 140px;
}

/* ═══════════════ Skeletons ═══════════════ */
.sh-skel {
  display: inline-block;
  background: linear-gradient(90deg,
    color-mix(in srgb, var(--sh-line) 70%, transparent) 25%,
    color-mix(in srgb, var(--sh-line) 30%, transparent) 50%,
    color-mix(in srgb, var(--sh-line) 70%, transparent) 75%);
  background-size: 200% 100%;
  animation: sh-shimmer 1.4s ease-in-out infinite;
  border-radius: 6px; vertical-align: middle;
}
.sh-skel-line   { height: 12px; width: 60%; }
.sh-skel-block  { height: 64px; width: 100%; border-radius: 12px; }
.sh-skel-circle { height: 36px; width: 36px; border-radius: 50%; }
@keyframes sh-shimmer {
  from { background-position: 200% 0; }
  to   { background-position: -200% 0; }
}

/* ═══════════════ Empty state ═══════════════ */
.sh-empty {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 6px;
  padding: 26px 18px; text-align: center;
}
.sh-empty-ico {
  width: 44px; height: 44px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px; font-weight: 700; line-height: 1;
  background: var(--sh-line); color: var(--sh-ink-3);
  margin-bottom: 4px;
}
.sh-empty-title { font-weight: 700; font-size: 13.5px; color: var(--sh-ink); }
.sh-empty-body  { font-size: 12.5px; color: var(--sh-ink-3); max-width: 36ch; line-height: 1.45; }

.sh-empty-good .sh-empty-ico { background: var(--sh-good-soft); color: var(--sh-good); }
.sh-empty-warn .sh-empty-ico { background: color-mix(in srgb, var(--sh-warn) 18%, transparent); color: var(--sh-warn); }
.sh-empty-bad  .sh-empty-ico { background: var(--sh-bad-soft);  color: var(--sh-bad); }
.sh-empty-info .sh-empty-ico { background: color-mix(in srgb, var(--sh-primary) 14%, transparent); color: var(--sh-primary); }

/* ═══════════════ Tables (attendance, finance, ...) ═══════════════ */
.sh-table-wrap { background: var(--sh-card); border: 1px solid var(--sh-line); border-radius: 16px; overflow: hidden; box-shadow: var(--sh-shadow-sm); }
.sh-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13.5px; }
.sh-table thead th {
  text-align: left; padding: 12px 14px;
  background: var(--sh-card-2); color: var(--sh-ink-3);
  font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
  border-bottom: 1px solid var(--sh-line);
}
.sh-table tbody td { padding: 12px 14px; border-bottom: 1px solid var(--sh-line-2); color: var(--sh-ink); vertical-align: middle; }
.sh-table tbody tr:last-child td { border-bottom: 0; }
.sh-table tbody tr:hover td { background: var(--sh-card-2); }
.sh-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.sh-table .student-cell { display: flex; align-items: center; gap: 10px; }
.sh-table .student-cell .av {
  width: 30px; height: 30px; border-radius: 8px; flex: 0 0 30px;
  background: linear-gradient(135deg, var(--sh-accent), var(--sh-primary));
  color: #fff; display: grid; place-items: center;
  font-size: 11px; font-weight: 700; letter-spacing: -.02em;
}
.sh-table .student-cell .roll { font-size: 11px; color: var(--sh-ink-3); font-weight: 500; }

/* ═══════════════ Filter / toolbar bar ═══════════════ */
.sh-toolbar {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 16px;
}
.sh-input, .sh-select {
  padding: 8px 12px; font: inherit; border: 1px solid var(--sh-line);
  border-radius: 10px; background: var(--sh-card); color: var(--sh-ink);
  outline: none; transition: border-color .15s, background .15s;
}
.sh-input:focus, .sh-select:focus { border-color: var(--sh-primary); }
.sh-input { min-width: 220px; }
/* Inside grid form rows (modal or not), inputs may need to shrink below the
   220px floor — let the grid track decide the width instead. */
.sh-modal-body [style*="grid-template-columns"] > .sh-field,
.sh-modal-body [style*="grid-template-columns"] > * { min-width: 0; }
.sh-modal-body [style*="grid-template-columns"] .sh-input { min-width: 0; }
.sh-select { min-width: 180px; }
.sh-meter {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  background: var(--sh-chip); color: var(--sh-ink-2);
  font-size: 12px; font-weight: 600;
}

/* ═══════════════ Segmented status buttons (mark sheet) ═══════════════ */
.sh-seg { display: inline-flex; gap: 4px; padding: 2px; border-radius: 10px; background: var(--sh-chip); }
.sh-seg button {
  padding: 6px 10px; border-radius: 8px; border: 0; background: transparent;
  font: inherit; font-size: 12px; font-weight: 600; color: var(--sh-ink-3); cursor: pointer;
  transition: background .12s, color .12s, transform .1s;
}
.sh-seg button:hover { color: var(--sh-ink); }
.sh-seg button.on-good   { background: var(--sh-good);   color: #fff; }
.sh-seg button.on-bad    { background: var(--sh-bad);    color: #fff; }
.sh-seg button.on-warn   { background: var(--sh-warn);   color: #fff; }
.sh-seg button.on-info   { background: var(--sh-info);   color: #fff; }
.sh-seg button.on-purple { background: var(--sh-accent); color: #fff; }

/* ═══════════════ Sticky form footer (mark sheet save bar) ═══════════════ */
.sh-formbar {
  position: sticky; bottom: 0; z-index: 5;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 18px; margin-top: 16px;
  background: color-mix(in srgb, var(--sh-card) 92%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--sh-line); border-radius: 14px;
  box-shadow: var(--sh-shadow-md);
}
.sh-formbar .totals { display: flex; gap: 14px; font-size: 12.5px; color: var(--sh-ink-3); }
.sh-formbar .totals strong { color: var(--sh-ink); font-weight: 700; }

/* MAUI mark-sheet: stacked rows */
.sh-mark-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px; border: 1px solid var(--sh-line); border-radius: 12px;
  background: var(--sh-card); margin-bottom: 8px;
}
.sh-mark-row .av {
  width: 36px; height: 36px; border-radius: 50%; flex: 0 0 36px;
  background: linear-gradient(135deg, var(--sh-accent), var(--sh-primary));
  color: #fff; display: grid; place-items: center;
  font-size: 12px; font-weight: 700;
}
.sh-mark-row .who { flex: 1; min-width: 0; }
.sh-mark-row .who .name { font-weight: 700; color: var(--sh-ink); font-size: 14px; }
.sh-mark-row .who .roll { font-size: 11.5px; color: var(--sh-ink-3); }

/* ═══════════════ Auth shell (centered card) ═══════════════ */
.sh-auth-shell {
  min-height: 100dvh;
  display: grid; place-items: center;
  padding: 24px 16px;
  background: var(--sh-body-bg-img, var(--sh-bg));
}
.sh-auth-card {
  width: 100%; max-width: 420px;
  background: var(--sh-card);
  border: 1px solid var(--sh-line);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: var(--sh-shadow-md);
  animation: sh-fade-up .5s cubic-bezier(.3,.8,.4,1.1) both;
}
.sh-auth-head { text-align: center; margin-bottom: 20px; }
.sh-auth-head .mark {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--sh-primary-grad);
  display: grid; place-items: center; margin: 0 auto 12px;
  color: #fff; font-weight: 800; font-size: 18px; letter-spacing: -.04em;
  box-shadow: 0 8px 18px -6px color-mix(in srgb, var(--sh-primary) 50%, transparent);
}
.sh-auth-head h1 { margin: 0; font-size: 22px; font-weight: 800; letter-spacing: -.02em; color: var(--sh-ink); }
.sh-auth-head .sub { margin-top: 4px; color: var(--sh-ink-3); font-size: 13px; }
.sh-auth-card .field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.sh-auth-card .field label { font-size: 12px; font-weight: 600; color: var(--sh-ink-2); }
.sh-auth-card .field input,
.sh-auth-card .field select {
  border: 1px solid var(--sh-line);
  background: var(--sh-card-2);
  border-radius: 10px;
  padding: 10px 12px;
  font: inherit; color: var(--sh-ink);
  outline: none;
  transition: border-color .15s, background .15s;
}
.sh-auth-card .field input:focus,
.sh-auth-card .field select:focus { border-color: var(--sh-primary); background: var(--sh-card); }
.sh-auth-card .row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 12.5px; color: var(--sh-ink-3); margin: 4px 0 16px;
}
.sh-auth-card .row a { color: var(--sh-primary); font-weight: 600; }
.sh-auth-card .row label { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; }
.sh-auth-card .submit {
  width: 100%; padding: 12px; border-radius: 10px; border: 0;
  background: var(--sh-primary-grad); color: #fff;
  font: inherit; font-weight: 700; letter-spacing: -.005em; cursor: pointer;
  box-shadow: 0 8px 18px -8px color-mix(in srgb, var(--sh-primary) 55%, transparent);
}
.sh-auth-card .submit:hover { transform: translateY(-1px); }
.sh-auth-card .err {
  background: var(--sh-bad-soft); color: var(--sh-bad);
  padding: 10px 12px; border-radius: 10px;
  font-size: 12.5px; font-weight: 600; margin-bottom: 14px;
}
.sh-auth-card .ok {
  background: var(--sh-good-soft); color: var(--sh-good);
  padding: 10px 12px; border-radius: 10px;
  font-size: 12.5px; font-weight: 600; margin-bottom: 14px;
}
.sh-auth-card .alt-link {
  text-align: center; margin-top: 18px;
  font-size: 13px; color: var(--sh-ink-3);
}
.sh-auth-card .alt-link a { color: var(--sh-primary); font-weight: 600; }

/* ═══════════════ Animations ═══════════════ */
@keyframes sh-fade-up    { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes sh-slide-down { from { transform: translateY(-12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.sh-topnav, .sh-mauinav { animation: sh-slide-down .45s .05s cubic-bezier(.3,.8,.4,1) both; }
.sh-ph, .sh-stats, .sh-card, .sh-pp-card { animation: sh-fade-up .5s both cubic-bezier(.3,.8,.4,1.1); }

/* ═══════════════ Responsive ═══════════════ */
@media (max-width: 1320px) { .sh-topnav .nav a { padding: 6px 8px; font-size: 12px; } }
@media (max-width: 1200px) {
  .sh-stats { grid-template-columns: repeat(2, 1fr); }
  .sh-grid-2, .sh-grid-2-eq { grid-template-columns: 1fr; }
}
@media (max-width: 1080px) { .sh-topnav .brand .wm .sub { display: none; } }
/* Modal form rows (inline grid styles) collapse to single column below tablet width
   so phone, iPad portrait (768), and narrow split-screens all get readable inputs. */
@media (max-width: 900px) {
  .sh-modal-body [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
}

@media (max-width: 760px) {
  .sh-topnav .inner { padding: 0 12px; gap: 8px; height: 56px; }
  .sh-topnav .brand .wm { display: none; }
  .sh-topnav .nav-wrap { display: none; }
  .sh-page { padding: 18px 14px 56px; }
  .sh-stats { grid-template-columns: 1fr 1fr; gap: 12px; }

  .sh-modal-backdrop { padding: 12px; align-items: flex-end; }
  .sh-modal {
    width: 100%; max-height: calc(100vh - 24px);
    border-radius: 14px;
  }
  .sh-modal-head { padding: 14px 16px; }
  .sh-modal-body { padding: 14px 16px; }
  .sh-modal-foot {
    padding: 12px 16px; flex-direction: column-reverse; gap: 8px;
  }
  .sh-modal-foot .sh-btn { width: 100%; justify-content: center; }
}

@media (max-width: 480px) {
  .sh-modal-backdrop { padding: 0; align-items: stretch; }
  .sh-modal {
    width: 100%; max-height: 100vh;
    border-radius: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .sh-topnav, .sh-mauinav, .sh-ph, .sh-stats, .sh-card, .sh-pp-card,
  .sh-toast, .sh-modal, .sh-modal-backdrop {
    animation: none !important;
  }
  .sh-skel { animation: none !important; }
}

.sh-subnav {
  display: flex; gap: 4px; flex-wrap: wrap;
  margin: 0 0 14px 0; padding: 4px;
  background: var(--sh-surface-2); border-radius: 10px;
}
.sh-subnav a {
  display: inline-flex; align-items: center;
  padding: 6px 14px; border-radius: 8px;
  color: var(--sh-ink-2); font-size: 13px; font-weight: 500;
  text-decoration: none; transition: background 120ms, color 120ms;
}
.sh-subnav a:hover { background: var(--sh-surface-3); color: var(--sh-ink-1); }
.sh-subnav a.active {
  background: var(--sh-surface-1); color: var(--sh-ink-1);
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.sh-subnav a .pending-chip {
  margin-left: 6px;
  padding: 1px 6px;
  font-size: 11px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--sh-warn);
  background: var(--sh-warn-soft);
  border-radius: 999px;
}