/* Facilitator Command Center - "Aurora" theme. System fonts only; no inline styles anywhere (strict CSP). Every animation is off for reduced-motion users. */
:root {
  --bg: #eef1f8; --bg2: #e3e9fb; --panel: #ffffff; --panel2: #f6f8fd; --fg: #141a2e; --muted: #5b6684; --line: #dfe5f1;
  --brand: #0f766e; --brand2: #0891b2; --brand-fg: #ffffff; --ok: #0f8f62; --warn: #b45309; --bad: #d92d20;
  --rgos: #a64b00; --rgos-bg: #fff2d9; --rgos-ac: #f59e0b;
  --rgab: #1d4ed8; --rgab-bg: #e2ebff; --rgab-ac: #3b82f6;
  --focus: #0ea5e9; --shadow: 0 1px 2px #1b25461a, 0 10px 28px -14px #1b254659; --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0a0f1d; --bg2: #101831; --panel: #131a2d; --panel2: #18213a; --fg: #e9edfb; --muted: #9aa6c6; --line: #263154; --brand: #2dd4bf; --brand2: #38bdf8; --brand-fg: #04201d;
    --ok: #4ade9c; --warn: #fbbf5e; --bad: #ff8a80; --rgos: #fbbf5e; --rgos-bg: #3a2a0d; --rgos-ac: #f59e0b; --rgab: #8fb5ff; --rgab-bg: #15264d; --rgab-ac: #5b8cff;
    --focus: #38bdf8; --shadow: 0 1px 2px #0006, 0 14px 34px -16px #000a; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--fg); font: 15px/1.5 "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif; letter-spacing: .005em; min-height: 100vh;
  background: radial-gradient(1100px 420px at 85% -120px, color-mix(in srgb, var(--brand2) 16%, transparent), transparent 70%), radial-gradient(900px 380px at -10% -100px, color-mix(in srgb, var(--rgos-ac) 14%, transparent), transparent 70%), linear-gradient(180deg, var(--bg2) 0, var(--bg) 360px), var(--bg); background-attachment: fixed; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }
a { color: var(--brand); }
.hidden { display: none !important; }

/* ------------------------------------------------------------ login */
body:has(.login) { background: radial-gradient(700px 500px at 20% 10%, color-mix(in srgb, var(--rgos-ac) 28%, transparent), transparent 70%), radial-gradient(800px 560px at 85% 85%, color-mix(in srgb, var(--rgab-ac) 30%, transparent), transparent 70%), linear-gradient(135deg, #0b1330, #0d2b3e 60%, #0b1330); background-attachment: fixed; }
.login { max-width: 410px; margin: 9vh auto; padding: 30px 28px 24px; background: color-mix(in srgb, var(--panel) 92%, transparent); backdrop-filter: blur(14px); border: 1px solid color-mix(in srgb, #fff 24%, var(--line)); border-radius: 22px; box-shadow: 0 30px 80px -20px #000a; }
.login h1 { margin: 0 0 4px; font-size: 22px; display: flex; align-items: center; gap: 12px; }
.login h1::before, .topbar h1::before { content: ""; flex: none; width: 34px; height: 34px; border-radius: 11px; box-shadow: 0 6px 16px -6px #0008;
  background: radial-gradient(circle at 37% 50%, var(--rgos-ac) 0 8px, transparent 9px), radial-gradient(circle at 63% 50%, var(--rgab-ac) 0 8px, transparent 9px), linear-gradient(140deg, #0f172a, #1f2d4d); }
.login p { margin: 0 0 18px; color: var(--muted); }
.field { display: grid; gap: 5px; margin-bottom: 14px; }
.field label { font-size: 13px; font-weight: 600; color: var(--muted); }
.field input, .field select, input[type="date"], input[type="search"], input[type="text"], input[type="time"], input[type="datetime-local"], select { padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel2); transition: border-color .15s, box-shadow .15s, background-color .15s; }
.field input:focus, input:focus, select:focus { outline: none; border-color: var(--focus); box-shadow: 0 0 0 4px color-mix(in srgb, var(--focus) 25%, transparent); background: var(--panel); }
.btn { padding: 10px 16px; border-radius: 12px; border: 1px solid transparent; background: linear-gradient(135deg, var(--brand), var(--brand2)); color: var(--brand-fg); font-weight: 600; cursor: pointer; box-shadow: 0 6px 16px -8px color-mix(in srgb, var(--brand) 80%, #000); }
.btn.secondary { background: var(--panel); color: var(--fg); border-color: var(--line); box-shadow: none; font-weight: 500; }
.btn.danger { background: linear-gradient(135deg, #e5483d, #b42318); color: #fff; box-shadow: 0 6px 16px -8px #b42318; }
.btn:disabled { opacity: .45; cursor: not-allowed; box-shadow: none; filter: grayscale(.4); }
.err { color: var(--bad); min-height: 1.4em; }
.ok { color: var(--ok); }

/* ------------------------------------------------------------ shell */
.topbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; padding: 12px 22px; background: color-mix(in srgb, var(--panel) 78%, transparent); backdrop-filter: blur(16px) saturate(1.4); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.topbar h1 { font-size: 18px; margin: 0 auto 0 0; display: flex; align-items: center; gap: 12px; letter-spacing: -.01em; }
.badge { padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; border: 1px solid var(--line); background: var(--panel2); color: var(--muted); }
.badge.warn { border-color: var(--warn); color: var(--warn); } .badge.bad { border-color: var(--bad); color: var(--bad); } .badge.ok { border-color: var(--ok); color: var(--ok); }
.banner { padding: 10px 22px; background: linear-gradient(90deg, #b42318, #e5483d); color: #fff; font-weight: 700; text-align: center; letter-spacing: .01em; }
.synth { padding: 7px 22px; background: color-mix(in srgb, var(--rgos-ac) 18%, var(--panel)); color: var(--fg); font-size: 12.5px; border-bottom: 1px solid var(--line); text-align: center; }
nav.tabs { display: flex; flex-wrap: wrap; gap: 6px; padding: 14px 22px 0; max-width: 1320px; margin: 0 auto; }
nav.tabs button { padding: 9px 16px; border: 1px solid transparent; border-radius: 999px; background: transparent; color: var(--muted); font-weight: 600; cursor: pointer; }
nav.tabs button:hover { background: color-mix(in srgb, var(--panel) 80%, transparent); color: var(--fg); }
nav.tabs button[aria-selected="true"] { background: var(--panel); color: var(--fg); border-color: var(--line); box-shadow: var(--shadow); }
nav.tabs button[aria-selected="true"]::after { content: ""; position: absolute; left: 18px; right: 18px; bottom: 3px; height: 3px; border-radius: 3px; background: linear-gradient(90deg, var(--brand), var(--brand2)); }
main { padding: 18px 22px 60px; max-width: 1320px; margin: 0 auto; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; margin-bottom: 16px; box-shadow: var(--shadow); }
.card h2 { margin: 0 0 10px; font-size: 17px; letter-spacing: -.005em; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 14px; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; background: var(--panel); box-shadow: var(--shadow); }
.seg button { padding: 8px 14px; background: transparent; border: 0; cursor: pointer; font-weight: 600; color: var(--muted); }
.seg button:hover { color: var(--fg); background: var(--panel2); }
.seg button[aria-pressed="true"] { background: linear-gradient(135deg, var(--brand), var(--brand2)); color: var(--brand-fg); }
.title { font-weight: 700; margin: 0 6px; font-size: 16px; }

/* live numbers above the calendar (click to filter) */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat { position: relative; text-align: left; padding: 14px 16px 12px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--panel); box-shadow: var(--shadow); cursor: pointer; overflow: hidden; }
.stat::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 5px; background: var(--muted); }
.stat.s-RGOS::before { background: var(--rgos-ac); } .stat.s-RGAB::before { background: var(--rgab-ac); } .stat.s-ALL::before { background: linear-gradient(180deg, var(--brand), var(--brand2)); } .stat.s-ATT::before { background: var(--warn); }
.stat .num { display: block; font-size: 30px; line-height: 1.1; font-weight: 800; letter-spacing: -.02em; }
.stat .lbl { font-size: 12.5px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.stat[aria-pressed="true"] { border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 28%, transparent), var(--shadow); }
.stat.s-RGOS .num { color: var(--rgos); } .stat.s-RGAB .num { color: var(--rgab); } .stat.s-ATT .num { color: var(--warn); }

/* company markers: colour AND shape/text, never colour alone */
.co { display: inline-flex; align-items: center; gap: 5px; padding: 2px 10px; border-radius: 8px; font-size: 12px; font-weight: 800; letter-spacing: .03em; }
.co-RGOS { background: var(--rgos-bg); color: var(--rgos); border: 1px solid color-mix(in srgb, var(--rgos-ac) 55%, transparent); }
.co-RGOS::before { content: "\25A0"; color: var(--rgos-ac); }
.co-RGAB { background: var(--rgab-bg); color: var(--rgab); border: 1px solid color-mix(in srgb, var(--rgab-ac) 55%, transparent); }
.co-RGAB::before { content: "\25CF"; color: var(--rgab-ac); }

/* calendar */
.dayrow { position: relative; display: grid; grid-template-columns: 64px 1fr; gap: 10px; padding: 5px 0; min-height: 38px; }
.dayrow::before { content: ""; position: absolute; left: 70px; top: 0; bottom: 0; width: 2px; background: var(--line); display: none; }
.dayrow + .dayrow { border-top: 1px dashed color-mix(in srgb, var(--line) 80%, transparent); }
.dayrow .t { color: var(--muted); font-variant-numeric: tabular-nums; font-weight: 700; padding-top: 10px; }
.ev { display: grid; gap: 6px; padding: 11px 14px; border-radius: 14px; border: 1px solid var(--line); border-left: 6px solid; background: var(--panel2); cursor: pointer; text-align: left; width: 100%; margin: 2px 0; box-shadow: 0 1px 2px #1b25460f; }
.ev.RGOS { border-left-color: var(--rgos-ac); background: linear-gradient(100deg, color-mix(in srgb, var(--rgos-bg) 85%, var(--panel)), var(--panel2) 55%); }
.ev.RGAB { border-left-color: var(--rgab-ac); background: linear-gradient(100deg, color-mix(in srgb, var(--rgab-bg) 85%, var(--panel)), var(--panel2) 55%); }
.ev.cancelled, .ev.no_show { opacity: .62; filter: saturate(.55); }
.ev.cancelled .l1 > span:not(.co):not(.note) { text-decoration: line-through; }
.ev .l1 { display: flex; flex-wrap: wrap; gap: 9px; align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: 5px; }
.chip { font-size: 12px; font-weight: 600; padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 85%, transparent); color: var(--muted); }
.chip.ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); background: color-mix(in srgb, var(--ok) 11%, transparent); }
.chip.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); background: color-mix(in srgb, var(--warn) 11%, transparent); }
.chip.bad { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 45%, transparent); background: color-mix(in srgb, var(--bad) 10%, transparent); }
.note { font-size: 12.5px; color: var(--muted); }
.mark { font-size: 12.5px; font-weight: 600; color: var(--muted); padding: 7px 12px; background: repeating-linear-gradient(45deg, transparent 0 7px, color-mix(in srgb, var(--line) 80%, transparent) 7px 8px); border: 1px dashed var(--line); border-radius: 10px; }
.nowline { display: flex; align-items: center; gap: 8px; color: var(--bad); font-weight: 800; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; padding-top: 6px; }
.nowline::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--bad); box-shadow: 0 0 0 0 color-mix(in srgb, var(--bad) 50%, transparent); }
.nowline::after { content: ""; flex: 1; height: 2px; background: linear-gradient(90deg, var(--bad), transparent); }
.week { display: grid; grid-template-columns: repeat(7, minmax(165px, 1fr)); gap: 10px; overflow-x: auto; padding-bottom: 6px; }
.week .col { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 10px; min-width: 165px; box-shadow: var(--shadow); }
.week .col.today { border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 22%, transparent), var(--shadow); }
.week h3 { margin: 0 0 8px; font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.week .col.today h3 { color: var(--focus); }
.month { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.month .dow { font-size: 12px; font-weight: 700; color: var(--muted); text-align: center; text-transform: uppercase; letter-spacing: .05em; }
.month .cell { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; min-height: 100px; padding: 7px; cursor: pointer; text-align: left; display: block; width: 100%; box-shadow: 0 1px 2px #1b25460f; }
.month .cell.other { opacity: .45; }
.month .cell.today { border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 22%, transparent); }
.month .cell .d { font-size: 12.5px; font-weight: 700; color: var(--muted); }
.month .mini { display: block; font-size: 11px; font-weight: 600; margin-top: 3px; padding: 1px 6px; border-radius: 6px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.month .mini.RGOS { background: var(--rgos-bg); color: var(--rgos); border-left: 3px solid var(--rgos-ac); }
.month .mini.RGAB { background: var(--rgab-bg); color: var(--rgab); border-left: 3px solid var(--rgab-ac); }

.menus { display: inline-flex; gap: 8px; flex-wrap: wrap; }
.menus select { font-weight: 600; cursor: pointer; padding-right: 8px; box-shadow: var(--shadow); }

/* tables / lists */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; font-size: 14px; }
th { color: var(--muted); font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: .05em; }
tbody tr { transition: background-color .15s; }
tbody tr:hover { background: var(--panel2); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(330px, 1fr)); gap: 16px; }

/* drawer + dialogs */
.drawer { position: fixed; top: 0; right: 0; bottom: 0; width: min(540px, 100vw); background: var(--panel); border-left: 1px solid var(--line); border-radius: 22px 0 0 22px; box-shadow: -18px 0 50px -16px #000a; padding: 20px; overflow: auto; z-index: 20; }
.drawer h2 { margin: 14px 0 8px; font-size: 20px; letter-spacing: -.01em; display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 7px 12px; margin: 10px 0; padding: 14px; background: var(--panel2); border: 1px solid var(--line); border-radius: 14px; }
.kv dt { color: var(--muted); font-size: 13px; font-weight: 600; }
.kv dd { margin: 0; font-weight: 500; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0; }
.timeline { list-style: none; padding: 0 0 0 16px; margin: 0; font-size: 13.5px; border-left: 2px solid var(--line); }
.timeline li { position: relative; padding: 5px 0 5px 10px; }
.timeline li::before { content: ""; position: absolute; left: -22px; top: 11px; width: 10px; height: 10px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand2)); box-shadow: 0 0 0 3px var(--panel); }
dialog { border: 1px solid var(--line); border-radius: 22px; background: var(--panel); color: var(--fg); max-width: 580px; padding: 22px; box-shadow: 0 30px 80px -20px #000b; }
dialog::backdrop { background: #070b1699; backdrop-filter: blur(3px); }
.brandbox { border: 1px solid var(--line); border-radius: 14px; padding: 14px; margin: 12px 0; background: var(--panel2); }
.brandbox.brand-RGOS { border-top: 8px solid var(--rgos-ac); }
.brandbox.brand-RGAB { border-top: 8px solid var(--rgab-ac); }
.brandhead { margin-bottom: 8px; }
.brandbox ul { margin: 6px 0; padding-left: 20px; }
.scroll-x { overflow-x: auto; }
.month .cell .d { display: inline-block; min-width: 1.6em; }
.month .cell .n { display: inline-block; float: right; background: linear-gradient(135deg, var(--brand), var(--brand2)); color: var(--brand-fg); border-radius: 999px; padding: 0 8px; font-size: 12px; font-weight: 800; }

/* toasts */
.toasts { position: fixed; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 120; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.toast { padding: 11px 18px 11px 14px; border-radius: 999px; background: #0e1730; color: #fff; font-weight: 600; box-shadow: 0 14px 34px -10px #000c; display: flex; align-items: center; gap: 10px; border: 1px solid #ffffff22; }
.toast::before { content: "\2713"; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand2)); color: #04201d; font-weight: 900; font-size: 13px; }
.toast.bad::before { content: "!"; background: var(--bad); color: #fff; }
.toast.out { opacity: 0; }

@media (max-width: 720px) {
  main { padding: 10px 12px 50px; } nav.tabs { padding: 10px 12px 0; } .topbar { padding: 10px 12px; }
  .kv { grid-template-columns: 1fr; } .month .cell { min-height: 66px; } .month .mini { display: none; } .month .cell .n { font-weight: 800; }
  .stat .num { font-size: 24px; } .drawer { border-radius: 0; }
}

/* ------------------------------------------------------------ guided tour */
.tour-shade { position: fixed; inset: 0; z-index: 90; background: transparent; }
.tour-hole { position: fixed; z-index: 91; border-radius: 16px; pointer-events: none; box-shadow: 0 0 0 9999px rgba(8, 13, 28, .66), 0 0 0 3px var(--focus), 0 0 34px 6px color-mix(in srgb, var(--focus) 55%, transparent); }
.tour-hole.none { border-radius: 0; box-shadow: 0 0 0 9999px rgba(8, 13, 28, .66); }
.tour-card { position: fixed; z-index: 92; width: min(380px, calc(100vw - 24px)); background: var(--panel); color: var(--fg); border: 1px solid var(--line); border-radius: 20px; padding: 18px 18px 14px; box-shadow: 0 24px 60px -12px #000a; opacity: 0; }
.tour-card.in { opacity: 1; }
.tour-count { font-size: 12px; font-weight: 700; color: var(--brand); text-transform: uppercase; letter-spacing: .08em; }
.tour-title { margin: 4px 0 6px; font-size: 20px; letter-spacing: -.01em; }
.tour-text { margin: 0 0 12px; color: var(--fg); }
.tour-dots { display: flex; gap: 5px; margin-bottom: 12px; flex-wrap: wrap; }
.tour-dot { width: 8px; height: 8px; border-radius: 999px; background: var(--line); }
.tour-dot.done { background: var(--muted); }
.tour-dot.on { background: linear-gradient(90deg, var(--brand), var(--brand2)); width: 22px; }
.tour-row { display: flex; gap: 8px; justify-content: flex-end; align-items: center; }
.tour-skip { margin-right: auto; background: transparent; border: 0; color: var(--muted); cursor: pointer; text-decoration: underline; padding: 6px; }
#tour-btn.hint { border-color: var(--focus); color: var(--focus); }

/* ------------------------------------------------------------ motion */
@media (prefers-reduced-motion: no-preference) {
  .tour-hole { transition: top .5s cubic-bezier(.2, .8, .2, 1), left .5s cubic-bezier(.2, .8, .2, 1), width .5s cubic-bezier(.2, .8, .2, 1), height .5s cubic-bezier(.2, .8, .2, 1); }
  .tour-card { transition: left .5s cubic-bezier(.2, .8, .2, 1), top .5s cubic-bezier(.2, .8, .2, 1), opacity .25s, transform .3s; transform: translateY(10px) scale(.97); }
  .tour-card.in { transform: none; }
  .tour-dot { transition: width .3s, background .3s; }
  #tour-btn.hint { animation: tourpulse 2s ease-in-out infinite; }
  @keyframes tourpulse { 0%, 100% { box-shadow: 0 0 0 0 #0ea5e955; } 50% { box-shadow: 0 0 0 8px #0ea5e900; } }

  .enter { animation: enter .32s cubic-bezier(.2, .8, .2, 1) both; }
  @keyframes enter { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
  .enter .dayrow, .enter .col, .enter .card, .enter .cell, .enter .stat { animation: enter .38s cubic-bezier(.2, .8, .2, 1) both; }
  .enter .dayrow:nth-child(2) { animation-delay: .03s; } .enter .dayrow:nth-child(3) { animation-delay: .07s; } .enter .dayrow:nth-child(4) { animation-delay: .11s; }
  .enter .dayrow:nth-child(5) { animation-delay: .15s; } .enter .dayrow:nth-child(6) { animation-delay: .19s; } .enter .dayrow:nth-child(n+7) { animation-delay: .23s; }
  .enter .col:nth-child(2) { animation-delay: .04s; } .enter .col:nth-child(3) { animation-delay: .08s; } .enter .col:nth-child(4) { animation-delay: .12s; }
  .enter .col:nth-child(5) { animation-delay: .16s; } .enter .col:nth-child(6) { animation-delay: .2s; } .enter .col:nth-child(7) { animation-delay: .24s; }
  .enter .card:nth-child(2) { animation-delay: .06s; } .enter .card:nth-child(3) { animation-delay: .12s; } .enter .card:nth-child(n+4) { animation-delay: .18s; }
  .enter .stat:nth-child(2) { animation-delay: .05s; } .enter .stat:nth-child(3) { animation-delay: .1s; } .enter .stat:nth-child(4) { animation-delay: .15s; }

  .ev, .month .cell, .btn, .seg button, .tabs button, .chip, .stat { transition: transform .16s ease, box-shadow .16s ease, background-color .16s ease, border-color .16s ease, color .16s ease, filter .16s ease; }
  .ev:hover { transform: translateX(4px); box-shadow: 0 10px 26px -12px #0007; }
  .month .cell:hover { transform: translateY(-3px); box-shadow: 0 12px 24px -12px #0006; }
  .stat:hover { transform: translateY(-3px); box-shadow: 0 14px 28px -14px #0007; }
  .btn:not(:disabled):hover { transform: translateY(-1px); filter: brightness(1.07); }
  .btn:not(:disabled):active { transform: translateY(0) scale(.97); filter: none; }
  .tabs button[aria-selected="true"]::after { animation: tabline .35s cubic-bezier(.2, .8, .2, 1) both; transform-origin: left; }
  @keyframes tabline { from { transform: scaleX(0); } }
  .drawer { animation: slide .3s cubic-bezier(.2, .8, .2, 1); }
  @keyframes slide { from { transform: translateX(44px); opacity: 0; } }
  dialog[open] { animation: pop .24s cubic-bezier(.2, .8, .2, 1); }
  dialog::backdrop { animation: fadein .24s ease both; }
  @keyframes pop { from { opacity: 0; transform: translateY(14px) scale(.96); } }
  @keyframes fadein { from { opacity: 0; } }
  .banner { animation: bannerpulse 2.4s ease-in-out infinite; }
  @keyframes bannerpulse { 0%, 100% { filter: none; } 50% { filter: brightness(1.2); } }
  .login { animation: enter .55s cubic-bezier(.2, .8, .2, 1) both; }
  body:has(.login) { background-size: 140% 140%, 140% 140%, 100% 100%; animation: aurora 14s ease-in-out infinite alternate; }
  @keyframes aurora { from { background-position: 0% 0%, 100% 100%, 0 0; } to { background-position: 30% 20%, 70% 80%, 0 0; } }
  .nowline::before { animation: nowpulse 1.8s ease-out infinite; }
  @keyframes nowpulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--bad) 55%, transparent); } 100% { box-shadow: 0 0 0 10px transparent; } }
  .toast { animation: toastin .3s cubic-bezier(.2, .8, .2, 1) both; transition: opacity .3s, transform .3s; }
  .toast.out { transform: translateY(8px); }
  @keyframes toastin { from { opacity: 0; transform: translateY(14px) scale(.96); } }
  .enter .stat .num { animation: numpop .45s cubic-bezier(.2, .9, .3, 1.3) both; }
  @keyframes numpop { from { transform: scale(.7); opacity: 0; } }
}
.tabs button { position: relative; }

/* ------------------------------------------------------------ left menu (wide screens) and tutorials */
@media (min-width: 960px) {
  nav.tabs { position: fixed; left: 0; top: 69px; bottom: 0; width: 232px; flex-direction: column; flex-wrap: nowrap; gap: 4px; padding: 18px 14px; margin: 0; max-width: none; overflow-y: auto;
    background: color-mix(in srgb, var(--panel) 70%, transparent); backdrop-filter: blur(14px); border-right: 1px solid var(--line); z-index: 4; }
  nav.tabs button { text-align: left; border-radius: 12px; padding: 11px 14px; width: 100%; }
  nav.tabs button[aria-selected="true"]::after { left: 0; right: auto; top: 10px; bottom: 10px; width: 4px; height: auto; }
  nav.tabs button[data-tab="tutorials"] { margin-top: auto; border: 1px dashed var(--line); }
  main { margin-left: 232px; max-width: none; padding-left: 28px; padding-right: 28px; }
  body:has(.synth) nav.tabs { top: 102px; }
}
.tutorials { display: grid; grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr); gap: 16px; align-items: start; }
@media (max-width: 900px) { .tutorials { grid-template-columns: 1fr; } }
.player { width: 100%; border-radius: 14px; background: #000; max-height: 62vh; }
.chap { display: flex; gap: 12px; align-items: flex-start; width: 100%; text-align: left; padding: 10px 12px; margin-bottom: 8px; border-radius: 14px; border: 1px solid var(--line); background: var(--panel2); cursor: pointer; }
.chap.on { border-color: var(--focus); box-shadow: 0 0 0 3px color-mix(in srgb, var(--focus) 22%, transparent); }
.chap-n { flex: none; width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; color: var(--brand-fg); background: linear-gradient(135deg, var(--brand), var(--brand2)); }
.chap-t { display: grid; gap: 2px; }
@media (prefers-reduced-motion: no-preference) { .chap { transition: transform .15s, box-shadow .15s, border-color .15s; } .chap:hover { transform: translateX(3px); } }

.login-methods { display: flex; margin: 0 0 14px; } .login-methods button { flex: 1; font-size: 13px; }

.markers { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 4px; } .markers .mk { font-size: 12.5px; padding: 6px 10px; }
.points { margin-top: 12px; padding: 12px 14px; border: 1px dashed var(--line); border-radius: 14px; background: var(--panel2); } .points h3 { margin: 0 0 6px; font-size: 14px; }
.pt { display: flex; gap: 10px; align-items: flex-start; padding: 5px 0; cursor: pointer; } .pt input { margin-top: 4px; accent-color: var(--brand); } .pt:has(input:checked) span { text-decoration: line-through; color: var(--muted); }