/* ChartQuest — design system (clean / corporate) */
:root {
  --bg: #f4f6f9;
  --bg-2: #eef1f5;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --surface-3: #eef1f5;
  --border: #e2e6ed;
  --border-strong: #cbd2dc;
  --text: #0f172a;
  --text-2: #334155;
  --muted: #64748b;
  --primary: #2453d4;
  --primary-ink: #1b41ad;
  --primary-soft: #ebf0fd;
  --navy: #0f1b3d;
  --navy-2: #172650;
  --green: #12935f; --green-soft: #e7f5ee; --green-ink: #0b7048;
  --amber: #c97d06; --amber-soft: #fcf3e2; --amber-ink: #925700;
  --red: #d33a46; --red-soft: #fcebed; --red-ink: #ad2531;
  --blue: #0b7bbf; --blue-soft: #e5f2fa; --blue-ink: #075f94;
  --pink: #7c4dbd;
  --grad: var(--primary);
  --grad-warm: var(--amber);
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 3px rgba(15, 23, 42, .04);
  --shadow-lg: 0 12px 32px -8px rgba(15, 23, 42, .18), 0 2px 6px rgba(15, 23, 42, .06);
  --radius: 10px;
  --radius-sm: 8px;
  --font: 'Segoe UI', system-ui, -apple-system, Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: Consolas, 'Cascadia Mono', ui-monospace, Menlo, monospace;
  --paper: #ffffff;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120; --bg-2: #0e1528; --surface: #121a2e; --surface-2: #162038; --surface-3: #1d2843;
    --border: #243152; --border-strong: #33436b; --text: #e8edf6; --text-2: #c2cbdc; --muted: #8592ab;
    --primary: #5b84f0; --primary-ink: #8aa8f6; --primary-soft: #1a2a52; --navy: #0a1122; --navy-2: #131d38;
    --green-soft: #0f2e24; --green-ink: #5fd1a2; --amber-soft: #33270f; --amber-ink: #f0c36b;
    --red-soft: #351a1f; --red-ink: #f3a0a7; --blue-soft: #10283f; --blue-ink: #86c6ef;
    --shadow: 0 1px 2px rgba(0,0,0,.3); --shadow-lg: 0 16px 40px -12px rgba(0,0,0,.7);
    --paper: #151e33; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1120; --bg-2: #0e1528; --surface: #121a2e; --surface-2: #162038; --surface-3: #1d2843;
  --border: #243152; --border-strong: #33436b; --text: #e8edf6; --text-2: #c2cbdc; --muted: #8592ab;
  --primary: #5b84f0; --primary-ink: #8aa8f6; --primary-soft: #1a2a52; --navy: #0a1122; --navy-2: #131d38;
  --green-soft: #0f2e24; --green-ink: #5fd1a2; --amber-soft: #33270f; --amber-ink: #f0c36b;
  --red-soft: #351a1f; --red-ink: #f3a0a7; --blue-soft: #10283f; --blue-ink: #86c6ef;
  --shadow: 0 1px 2px rgba(0,0,0,.3); --shadow-lg: 0 16px 40px -12px rgba(0,0,0,.7);
  --paper: #151e33; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); background: var(--bg); color: var(--text); font-size: 14px; line-height: 1.55; -webkit-font-smoothing: antialiased; font-feature-settings: 'cv11', 'ss01'; }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-ink); }
h1, h2, h3, h4 { margin: 0; line-height: 1.3; letter-spacing: -.011em; font-weight: 600; }
p { margin: 0 0 .8em; }
small { font-size: 12.5px; }
code, .mono { font-family: var(--mono); }
img { max-width: 100%; }
hr { border: 0; border-top: 1px solid var(--border); margin: 18px 0; }
.ic { flex: none; vertical-align: middle; }
.muted { color: var(--muted); }
.d-block { display: block; }
.center { text-align: center; }
.hidden { display: none !important; }
.nowrap { white-space: nowrap; }
.mt-0 { margin-top: 0 } .mt-1 { margin-top: 8px } .mt-2 { margin-top: 16px } .mt-3 { margin-top: 24px } .mb-0 { margin-bottom: 0 } .mb-2 { margin-bottom: 16px }
.row { display: flex; align-items: center; gap: 10px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.wrap { flex-wrap: wrap; }
.grow { flex: 1; min-width: 0; }
.gap-sm { gap: 6px; }
.text-green { color: var(--green-ink); } .text-red { color: var(--red-ink); } .text-amber { color: var(--amber-ink); }
.eyebrow { font-size: 11.5px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }

/* ---------- Shell ---------- */
.shell { display: flex; min-height: 100vh; }
.sidebar { width: 248px; flex: none; background: var(--navy); color: #c9d2e6; padding: 18px 12px; display: flex; flex-direction: column; gap: 18px; position: sticky; top: 0; height: 100vh; overflow-y: auto; z-index: 40; }
.brand { display: flex; align-items: center; gap: 11px; padding: 4px 8px 10px; color: #fff; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand:hover { color: #fff; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 8px; background: var(--primary); color: #fff; flex: none; }
.brand-text b { display: block; font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.brand-text small { color: #8d9abb; font-size: 11.5px; }
.nav-label { padding: 0 10px; font-size: 11px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: #6c7a9c; margin-bottom: -10px; }
.nav { display: flex; flex-direction: column; gap: 1px; }
.nav a { display: flex; align-items: center; gap: 11px; padding: 8px 10px; border-radius: 7px; color: #b6c0d8; font-weight: 500; font-size: 13.5px; transition: background .12s, color .12s; }
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav a.active { background: rgba(255,255,255,.1); color: #fff; }
.nav a.active .ic { color: #8fb0ff; }
.side-card { margin-top: auto; padding: 14px; border-radius: 9px; background: var(--navy-2); border: 1px solid rgba(255,255,255,.06); display: grid; gap: 8px; color: #c9d2e6; }
.side-card b { color: #fff; font-weight: 600; }
.side-card small, .side-card .muted { color: #8d9abb; }
.side-tip small { line-height: 1.5; }
.side-level { display: flex; gap: 10px; align-items: center; }
.side-level small { display: block; font-weight: 500; }
.lv-ic { width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center; background: rgba(143,176,255,.14); color: #8fb0ff; flex: none; }
.xpbar { height: 6px; border-radius: 99px; background: var(--surface-3); overflow: hidden; }
.side-card .xpbar { background: rgba(255,255,255,.1); }
.xpbar span { display: block; height: 100%; border-radius: 99px; background: var(--primary); transition: width .8s ease; }
.side-card .xpbar span { background: #8fb0ff; }
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 14px; padding: 12px 28px; background: color-mix(in srgb, var(--surface) 92%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); min-height: 64px; }
.tb-title { flex: 1; min-width: 0; }
.tb-title h1 { font-size: 18px; font-weight: 600; }
.tb-title p { margin: 1px 0 0; color: var(--muted); font-size: 13px; }
.tb-actions { display: flex; align-items: center; gap: 8px; }
.content { padding: 24px 28px 60px; max-width: 1440px; width: 100%; }
.only-mobile { display: none; }
.sidebar-scrim { display: none; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 8px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); font: 500 13.5px/1.25 var(--font); cursor: pointer; transition: background .12s, border-color .12s, box-shadow .12s; white-space: nowrap; text-decoration: none; box-shadow: var(--shadow-sm); }
.btn:hover { background: var(--surface-2); color: var(--text); }
.btn:focus-visible, .icon-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-ink); border-color: var(--primary-ink); color: #fff; }
.btn-soft { background: var(--primary-soft); color: var(--primary-ink); border-color: transparent; box-shadow: none; }
.btn-soft:hover { background: color-mix(in srgb, var(--primary-soft) 80%, var(--primary) 20%); color: var(--primary-ink); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-2); box-shadow: none; }
.btn-ghost:hover { background: var(--surface-3); }
.btn-danger { background: var(--surface); color: var(--red-ink); border-color: color-mix(in srgb, var(--red) 35%, var(--border)); }
.btn-danger:hover { background: var(--red-soft); color: var(--red-ink); }
.btn-success { background: var(--green); color: #fff; border-color: var(--green); }
.btn-success:hover { color: #fff; filter: brightness(.94); background: var(--green); }
.btn-white { background: #fff; color: var(--navy); border-color: #fff; }
.btn-white:hover { background: #eef2fb; color: var(--navy); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.35); box-shadow: none; }
.btn-outline-light:hover { background: rgba(255,255,255,.08); color: #fff; }
.btn-sm { padding: 6px 10px; font-size: 13px; }
.btn-lg { padding: 10px 18px; font-size: 14.5px; }
.btn-xl { padding: 12px 22px; font-size: 15px; }
.btn-block { width: 100%; }
.icon-btn { position: relative; width: 36px; height: 36px; display: grid; place-items: center; border-radius: var(--radius-sm); border: 1px solid var(--border); background: var(--surface); color: var(--text-2); cursor: pointer; }
.icon-btn:hover { color: var(--text); background: var(--surface-2); }
.link-btn { background: none; border: 0; padding: 0; color: var(--primary); font: 500 13px var(--font); cursor: pointer; }
.dot-count { position: absolute; top: -4px; right: -4px; min-width: 17px; height: 17px; padding: 0 4px; border-radius: 99px; background: var(--red); color: #fff; font-size: 10.5px; font-weight: 600; display: grid; place-items: center; border: 2px solid var(--surface); }
[data-theme-toggle] .i-sun { display: none; }
:root[data-theme="dark"] [data-theme-toggle] .i-sun { display: inline; }
:root[data-theme="dark"] [data-theme-toggle] .i-moon { display: none; }

/* ---------- Dropdown ---------- */
.dropdown { position: relative; }
.dropdown-menu { position: absolute; right: 0; top: calc(100% + 6px); min-width: 230px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow-lg); padding: 5px; display: none; z-index: 50; }
.dropdown.open .dropdown-menu { display: block; animation: pop .12s ease-out; }
.dm-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 9px 11px; border-bottom: 1px solid var(--border); margin-bottom: 4px; }
.dm-item { display: flex; width: 100%; align-items: center; gap: 10px; padding: 8px 11px; border-radius: 6px; color: var(--text-2); background: none; border: 0; font: 500 13.5px var(--font); cursor: pointer; text-align: left; }
.dm-item:hover { background: var(--surface-2); color: var(--text); }
.dm-item.danger { color: var(--red-ink); }
.notif-menu { width: 360px; max-height: 70vh; overflow-y: auto; }
.notif { display: flex; gap: 11px; padding: 10px 11px; border-radius: 7px; color: var(--text); }
.notif:hover { background: var(--surface-2); color: var(--text); }
.notif.unread { background: var(--primary-soft); }
.notif-ic { width: 28px; height: 28px; border-radius: 7px; display: grid; place-items: center; background: var(--surface-3); color: var(--muted); flex: none; }
.notif.unread .notif-ic { background: var(--primary); color: #fff; }
.notif b { font-weight: 600; font-size: 13.5px; }
.notif small { display: block; color: var(--muted); }
.notif em { display: block; font-style: normal; font-size: 11.5px; color: var(--muted); margin-top: 2px; }
.empty-mini { padding: 18px; text-align: center; color: var(--muted); }
.user-chip { display: flex; align-items: center; gap: 9px; padding: 3px 9px 3px 3px; border: 1px solid var(--border); border-radius: 99px; background: var(--surface); cursor: pointer; color: var(--text); font-family: var(--font); }
.uc-text { text-align: left; line-height: 1.2; }
.uc-text b { display: block; font-size: 13px; font-weight: 600; }
.uc-text small { color: var(--muted); font-size: 11.5px; }

/* ---------- Avatar & pills ---------- */
.avatar { --h: 220; width: 36px; height: 36px; flex: none; border-radius: 50%; display: inline-grid; place-items: center; font-weight: 600; font-size: 13px; color: hsl(var(--h) 45% 32%); background: hsl(var(--h) 45% 92%); }
:root[data-theme="dark"] .avatar { color: hsl(var(--h) 60% 82%); background: hsl(var(--h) 30% 24%); }
.avatar-sm { width: 30px; height: 30px; font-size: 11.5px; }
.avatar-lg { width: 52px; height: 52px; font-size: 18px; }
.avatar-xl { width: 76px; height: 76px; font-size: 26px; }
.pill { display: inline-flex; align-items: center; gap: 5px; padding: 2px 9px; border-radius: 99px; font-size: 12px; font-weight: 500; white-space: nowrap; border: 1px solid transparent; }
.pill-green { background: var(--green-soft); color: var(--green-ink); }
.pill-amber { background: var(--amber-soft); color: var(--amber-ink); }
.pill-red { background: var(--red-soft); color: var(--red-ink); }
.pill-blue { background: var(--blue-soft); color: var(--blue-ink); }
.pill-gray { background: var(--surface-3); color: var(--text-2); }
.pill-violet { background: var(--primary-soft); color: var(--primary-ink); }
.pill-outline { background: transparent; border-color: var(--border-strong); color: var(--text-2); }
.tag { display: inline-block; padding: 1px 7px; border-radius: 5px; background: var(--surface-3); color: var(--text-2); font-size: 11.5px; font-weight: 500; }

/* ---------- Cards & grids ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.card-head h2, .card-head h3 { font-size: 14.5px; font-weight: 600; }
.card-head p { margin: 2px 0 0; color: var(--muted); font-size: 12.5px; }
.card-body { padding: 18px; }
.card-foot { padding: 12px 18px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; flex-wrap: wrap; background: var(--surface-2); border-radius: 0 0 var(--radius) var(--radius); }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-main-side { grid-template-columns: minmax(0, 1fr) 340px; }
.stack { display: grid; gap: 18px; }

.stat { display: flex; gap: 14px; align-items: flex-start; padding: 16px 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.stat-ic { width: 36px; height: 36px; border-radius: 8px; display: grid; place-items: center; flex: none; }
.stat small { display: block; color: var(--muted); font-weight: 500; font-size: 12.5px; }
.stat b { display: block; font-size: 24px; font-weight: 600; letter-spacing: -.02em; color: var(--text); line-height: 1.25; margin-top: 2px; }
.stat em { font-style: normal; font-size: 12px; color: var(--muted); }
.stat-violet .stat-ic { background: var(--primary-soft); color: var(--primary); }
.stat-green .stat-ic { background: var(--green-soft); color: var(--green); }
.stat-amber .stat-ic { background: var(--amber-soft); color: var(--amber); }
.stat-blue .stat-ic { background: var(--blue-soft); color: var(--blue); }
.stat-pink .stat-ic { background: color-mix(in srgb, var(--pink) 12%, transparent); color: var(--pink); }

/* ---------- Forms ---------- */
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field > label, .label { font-weight: 500; font-size: 13px; color: var(--text-2); }
.field .hint { color: var(--muted); font-size: 12px; }
input:not([type]), input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=search], input[type=url], select, textarea {
  width: 100%; padding: 8px 11px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--surface); color: var(--text); font: 400 13.5px var(--font); transition: border-color .12s, box-shadow .12s; outline: none; min-height: 36px;
}
input:focus, select:focus, textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 16%, transparent); }
input:disabled, select:disabled, textarea:disabled { background: var(--surface-2); color: var(--muted); }
textarea { resize: vertical; min-height: 76px; line-height: 1.5; }
input[type=file] { padding: 9px; border: 1px dashed var(--border-strong); border-radius: var(--radius-sm); width: 100%; background: var(--surface-2); color: var(--text-2); font-family: var(--font); font-size: 13px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; }
.form-grid .full { grid-column: 1 / -1; }
.check { display: flex; align-items: center; gap: 9px; font-weight: 500; cursor: pointer; }
.check input { width: 16px; height: 16px; accent-color: var(--primary); }
.switch { position: relative; display: inline-flex; align-items: center; gap: 11px; cursor: pointer; font-weight: 500; }
.switch input { position: absolute; opacity: 0; }
.switch .track { width: 36px; height: 20px; border-radius: 99px; background: var(--border-strong); position: relative; transition: background .15s; flex: none; }
.switch .track::after { content: ''; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; box-shadow: var(--shadow-sm); transition: transform .15s; }
.switch input:checked + .track { background: var(--primary); }
.switch input:checked + .track::after { transform: translateX(16px); }
.choice-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.choice { position: relative; cursor: pointer; }
.choice input { position: absolute; opacity: 0; }
.choice > span { display: flex; gap: 11px; align-items: center; padding: 11px 13px; border: 1px solid var(--border-strong); border-radius: var(--radius-sm); transition: border-color .12s, background .12s; }
.choice > span b { display: block; font-weight: 600; }
.choice > span small { color: var(--muted); }
.choice .ch-ic { width: 32px; height: 32px; border-radius: 7px; display: grid; place-items: center; background: var(--surface-3); color: var(--text-2); flex: none; }
.choice input:checked + span { border-color: var(--primary); background: var(--primary-soft); box-shadow: 0 0 0 1px var(--primary); }
.choice input:checked + span .ch-ic { background: var(--primary); color: #fff; }
.choice input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: separate; border-spacing: 0; }
.table th { text-align: left; font-size: 11.5px; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 600; padding: 10px 16px; background: var(--surface-2); border-bottom: 1px solid var(--border); white-space: nowrap; }
.table td { padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--surface-2); }
.person { display: flex; align-items: center; gap: 11px; min-width: 0; }
.person b { display: block; font-weight: 600; }
.person small { color: var(--muted); display: block; overflow: hidden; text-overflow: ellipsis; }
.actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: wrap; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 2px; padding: 3px; background: var(--surface-3); border-radius: var(--radius-sm); width: fit-content; max-width: 100%; overflow-x: auto; }
.tabs a, .tabs button { padding: 6px 12px; border-radius: 6px; font: 500 13px var(--font); color: var(--muted); border: 0; background: none; cursor: pointer; white-space: nowrap; display: inline-flex; align-items: center; gap: 6px; }
.tabs a:hover { color: var(--text); }
.tabs a.active, .tabs button.active { background: var(--surface); color: var(--text); box-shadow: var(--shadow-sm); }
.tabs .count { padding: 0 6px; border-radius: 99px; background: var(--surface-3); font-size: 11px; color: var(--muted); }
.tabs a.active .count { background: var(--primary-soft); color: var(--primary-ink); }

/* ---------- Toasts ---------- */
.toasts { position: fixed; right: 20px; bottom: 20px; display: grid; gap: 8px; z-index: 200; max-width: min(400px, calc(100vw - 40px)); }
.toast { padding: 11px 14px 11px 16px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-lg); font-weight: 500; font-size: 13.5px; animation: toastIn .2s ease-out; border-left: 3px solid var(--primary); }
.toast-success { border-left-color: var(--green); }
.toast-error { border-left-color: var(--red); }
.toast-warning { border-left-color: var(--amber); }
.toast.out { animation: toastOut .2s forwards; }
@keyframes toastIn { from { opacity: 0; transform: translateY(8px); } }
@keyframes toastOut { to { opacity: 0; transform: translateY(8px); } }
@keyframes pop { from { opacity: 0; transform: translateY(-4px); } }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: flex-start; justify-content: center; padding: 8vh 16px; background: rgba(15, 23, 42, .45); overflow-y: auto; }
.modal.open { display: flex; animation: fade .15s; }
.modal-box { width: 100%; max-width: 600px; background: var(--surface); border-radius: 12px; box-shadow: var(--shadow-lg); animation: rise .18s ease-out; border: 1px solid var(--border); }
.modal-box.wide { max-width: 860px; }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-head h3 { font-size: 16px; font-weight: 600; }
.modal-body { padding: 20px; }
.modal-foot { padding: 14px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 10px; background: var(--surface-2); border-radius: 0 0 12px 12px; }
@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(10px); } }

/* ---------- Empty, alerts ---------- */
.empty { text-align: center; padding: 44px 20px; }
.empty-ic { width: 48px; height: 48px; border-radius: 12px; display: inline-grid; place-items: center; background: var(--surface-3); color: var(--muted); margin-bottom: 12px; }
.empty h3 { font-size: 15px; margin-bottom: 4px; }
.empty p { color: var(--muted); max-width: 420px; margin: 0 auto 16px; }
.alert { display: flex; gap: 11px; padding: 11px 14px; border-radius: var(--radius-sm); background: var(--blue-soft); color: var(--blue-ink); font-weight: 400; margin-bottom: 16px; align-items: flex-start; border: 1px solid color-mix(in srgb, currentColor 18%, transparent); font-size: 13.5px; }
.alert .ic { margin-top: 2px; }
.alert a { color: inherit; text-decoration: underline; font-weight: 500; }
.alert-amber { background: var(--amber-soft); color: var(--amber-ink); }
.alert-red { background: var(--red-soft); color: var(--red-ink); }
.alert-green { background: var(--green-soft); color: var(--green-ink); }
.alert-violet { background: var(--primary-soft); color: var(--primary-ink); }

/* ---------- Auth pages ---------- */
.bare-main { min-height: 100vh; }
.auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 32px 16px; background: var(--bg); }
.auth-split { width: 100%; max-width: 980px; display: grid; grid-template-columns: 1fr 1fr; background: var(--surface); border-radius: 14px; box-shadow: var(--shadow-lg); overflow: hidden; border: 1px solid var(--border); }
.auth-art { background: var(--navy); color: #c9d2e6; padding: 40px; display: flex; flex-direction: column; gap: 28px; position: relative; overflow: hidden; }
.auth-art::after { content: ''; position: absolute; right: -120px; bottom: -120px; width: 360px; height: 360px; border-radius: 50%; border: 60px solid rgba(91, 132, 240, .12); }
.auth-art .brand { border: 0; padding: 0; }
.auth-art h2 { font-size: 26px; font-weight: 600; line-height: 1.25; letter-spacing: -.02em; color: #fff; }
.auth-art p { font-size: 14.5px; color: #a9b5d0; }
.feature-list { display: grid; gap: 14px; margin-top: auto; position: relative; z-index: 1; }
.feature-list div { display: flex; gap: 12px; align-items: flex-start; font-size: 13.5px; }
.feature-list .fi { width: 30px; height: 30px; border-radius: 7px; display: grid; place-items: center; background: rgba(143,176,255,.14); color: #8fb0ff; flex: none; }
.feature-list b { display: block; color: #fff; font-weight: 600; }
.feature-list small { color: #95a3c4; }
.auth-form { padding: 44px 40px; display: flex; flex-direction: column; justify-content: center; }
.auth-form h1 { font-size: 22px; font-weight: 600; margin-bottom: 4px; }
.auth-card { width: 100%; max-width: 440px; background: var(--surface); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow-lg); padding: 36px; }
.auth-card h1 { font-size: 20px; font-weight: 600; margin-bottom: 4px; }
.auth-icon { width: 44px; height: 44px; border-radius: 10px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); margin-bottom: 14px; }
.auth-card.center .auth-icon { margin-left: auto; margin-right: auto; }
.pw-meter { height: 4px; border-radius: 99px; background: var(--surface-3); overflow: hidden; margin-top: 4px; }
.pw-meter span { display: block; height: 100%; width: 0; transition: width .25s, background .25s; }

/* ---------- Candidate dashboard ---------- */
.hero { position: relative; border-radius: 12px; padding: 26px 28px; color: #c9d2e6; background: var(--navy); overflow: hidden; }
.hero h2 { font-size: 21px; font-weight: 600; letter-spacing: -.02em; color: #fff; }
.hero p { font-size: 14.5px; max-width: 640px; color: #a9b5d0; }
.hero .eyebrow { color: #8fb0ff; }
.hero-meta { display: flex; gap: 22px; flex-wrap: wrap; margin: 16px 0 20px; }
.hero-meta div small { display: block; color: #8d9abb; font-size: 12px; }
.hero-meta div b { color: #fff; font-weight: 600; font-size: 15px; }
.timer-box { padding: 8px 16px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface-2); text-align: center; }
.timer-box b { font-size: 22px; font-weight: 600; }
/* ---------- Mini charts ---------- */
.bars { display: grid; gap: 11px; }
.bar-row { display: grid; grid-template-columns: 120px 1fr 44px; gap: 12px; align-items: center; font-size: 13px; }
.bar-row .track { height: 8px; border-radius: 99px; background: var(--surface-3); overflow: hidden; }
.bar-row .track span { display: block; height: 100%; border-radius: 99px; background: var(--primary); }
.bar-row b { text-align: right; font-weight: 600; }
.spark { display: flex; align-items: flex-end; gap: 8px; height: 130px; padding-top: 10px; }
.spark div { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.spark i { display: block; width: 100%; max-width: 28px; border-radius: 4px 4px 2px 2px; background: var(--primary); min-height: 3px; opacity: .85; }
.spark small { color: var(--muted); font-size: 11px; }

/* ---------- Chart library ---------- */
.chart-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.chart-card { padding: 16px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 10px; transition: border-color .12s, box-shadow .12s; }
.chart-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-lg); }
.chart-card.inactive { opacity: .6; }
.chart-card h3 { font-size: 14px; font-weight: 600; }
.cc-top { display: flex; gap: 12px; align-items: flex-start; }
.cc-ic { width: 36px; height: 36px; border-radius: 8px; display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); flex: none; }
.cc-meta { display: flex; gap: 6px; flex-wrap: wrap; }
.cc-codes { display: flex; gap: 6px; flex-wrap: wrap; }
.code-chip { font-family: var(--mono); font-size: 11.5px; font-weight: 500; padding: 2px 7px; border-radius: 5px; background: var(--surface-3); color: var(--text-2); border: 1px solid var(--border); }
.code-chip.date { background: var(--green-soft); color: var(--green-ink); border-color: transparent; }
.cc-foot { margin-top: auto; display: flex; justify-content: space-between; align-items: center; color: var(--muted); font-size: 12.5px; padding-top: 10px; border-top: 1px solid var(--border); }
.key-rows { display: grid; gap: 8px; }
.key-row { display: grid; grid-template-columns: 170px minmax(0, 1fr) 36px; gap: 8px; }
/* ---------- Assessment screen ---------- */
.focus-main { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }
.play-top { display: flex; align-items: center; gap: 16px; padding: 8px 16px; background: var(--navy); color: #c9d2e6; flex: none; flex-wrap: wrap; }
.play-top .brand-mark { width: 32px; height: 32px; }
.pt-title small { color: #8d9abb; font-size: 11.5px; font-weight: 500; letter-spacing: .04em; text-transform: uppercase; }
.pt-title div { color: #fff; font-weight: 600; }
.case-dots { display: flex; gap: 6px; flex: 1; justify-content: center; flex-wrap: wrap; }
.case-dot { display: flex; align-items: center; gap: 7px; padding: 3px 11px 3px 4px; border-radius: 99px; border: 1px solid rgba(255,255,255,.14); font-size: 12.5px; font-weight: 500; color: #a9b5d0; }
.case-dot i { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-style: normal; background: rgba(255,255,255,.1); font-size: 11.5px; font-weight: 600; }
.case-dot:hover { color: #fff; border-color: rgba(255,255,255,.3); }
.case-dot.current { color: #fff; border-color: #8fb0ff; background: rgba(143,176,255,.12); }
.case-dot.current i { background: #8fb0ff; color: var(--navy); }
.case-dot.done { color: #7fd9b0; }
.case-dot.done i { background: #1a7f57; color: #fff; }
.timer { display: flex; align-items: center; gap: 7px; padding: 5px 12px; border-radius: 99px; background: rgba(255,255,255,.08); font-family: var(--mono); font-size: 15px; color: #fff; }
.timer.warn { background: rgba(240,180,60,.2); color: #ffd68a; }
.timer.danger { background: rgba(240,100,112,.25); color: #ffc1c6; }
.play-grid { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(420px, 1fr); }
.chart-pane { min-height: 0; display: flex; flex-direction: column; border-right: 1px solid var(--border); background: var(--bg-2); }
.pane-bar { display: flex; align-items: center; gap: 8px; padding: 8px 14px; border-bottom: 1px solid var(--border); background: var(--surface); min-height: 48px; }
.pane-bar h2 { font-size: 14px; font-weight: 600; flex: 1; min-width: 0; }
.chart-frame { flex: 1; width: 100%; border: 0; background: #fff; }
.chart-scroll { flex: 1; overflow: auto; padding: 18px; }
.chart-doc { max-width: 820px; margin: 0 auto; background: var(--paper); border: 1px solid var(--border); border-radius: 4px; padding: 36px; font-family: Georgia, 'Times New Roman', serif; font-size: 14.5px; line-height: 1.7; white-space: pre-wrap; }
.chart-img { display: block; margin: 0 auto; max-width: 100%; border-radius: 4px; box-shadow: var(--shadow-lg); }
.work-pane { min-height: 0; display: flex; flex-direction: column; background: var(--surface-2); }
.work-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 12px 16px; background: var(--surface); border-bottom: 1px solid var(--border); }
.work-head b { font-size: 14.5px; }
.work-body { flex: 1; overflow-y: auto; padding: 14px 16px; display: grid; gap: 12px; align-content: start; grid-template-columns: minmax(0, 1fr); }
.work-add { padding: 0 16px 12px; }
.dos-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 12px; display: grid; gap: 8px; }
.dos-card-head { display: grid; grid-template-columns: auto minmax(0, 1fr) 90px 34px; gap: 10px; align-items: end; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.dos-n { display: inline-block; padding: 4px 9px; border-radius: 6px; background: var(--primary); color: #fff; font-size: 12px; font-weight: 600; align-self: center; white-space: nowrap; }
.dos-field { display: grid; gap: 4px; font-size: 12px; font-weight: 500; color: var(--muted); }
.dos-card-head .icon-btn { width: 34px; height: 36px; font-size: 18px; }
.cond-head, .cond-row { display: grid; grid-template-columns: 150px minmax(0, 1fr) 34px; gap: 8px; align-items: start; }
.cond-head { font-size: 11.5px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.cond-row .icon-btn { width: 34px; height: 36px; font-size: 18px; }
.cond-code input { font-family: var(--mono); text-transform: uppercase; }
.cond-code input::placeholder { text-transform: none; }
.cond-desc { display: block; font-size: 11.5px; color: var(--muted); line-height: 1.3; margin-top: 3px; }
.dos-comment { margin-top: 2px; }
.dos-card .btn-ghost { justify-self: start; }
.submit-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 10px 16px; background: var(--surface); border-top: 1px solid var(--border); }
.save-ind { font-size: 12.5px; color: var(--muted); display: inline-flex; align-items: center; gap: 7px; }
.save-ind::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--border-strong); }
.save-ind.saving::before { background: var(--amber); }
.save-ind.saved::before { background: var(--green); }

/* Instructions page */
.mission { min-height: 100vh; display: grid; place-items: center; padding: 32px 16px; }
.mission-card { max-width: 720px; width: 100%; background: var(--surface); border-radius: 14px; padding: 32px 36px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.mission-card h1 { font-size: 22px; font-weight: 600; margin: 4px 0 6px; }
.mission-head { display: flex; gap: 16px; align-items: flex-start; }
.mission-head .auth-icon { margin: 0; flex: none; }
.mission-facts { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border); border-radius: var(--radius); margin: 20px 0; }
.mission-facts div { padding: 12px 16px; border-left: 1px solid var(--border); }
.mission-facts div:first-child { border-left: 0; }
.mission-facts small { display: block; color: var(--muted); font-size: 12px; }
.mission-facts b { font-size: 17px; font-weight: 600; }
.mission-rules { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; margin: 4px 0 24px; }
.mission-rules div { display: flex; gap: 11px; align-items: flex-start; }
.mission-rules .ri { width: 28px; height: 28px; border-radius: 7px; display: grid; place-items: center; background: var(--surface-3); color: var(--text-2); flex: none; }
.mission-rules b { display: block; font-weight: 600; font-size: 13.5px; }
.mission-rules small { color: var(--muted); }
/* ---------- Review ---------- */
.seg { display: inline-flex; padding: 2px; border-radius: 7px; background: var(--surface-3); gap: 2px; border: 1px solid var(--border); }
.seg label { cursor: pointer; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg span { display: inline-flex; padding: 4px 10px; border-radius: 5px; font-weight: 500; font-size: 12.5px; color: var(--muted); }
.seg label:hover span { color: var(--text); }
.seg input:checked + span.v-correct { background: var(--green); color: #fff; }
.seg input:checked + span.v-partial { background: var(--amber); color: #fff; }
.seg input:checked + span.v-incorrect { background: var(--red); color: #fff; }
.seg input:focus-visible + span { outline: 2px solid var(--primary); }
.review-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 16px; align-items: start; }
.review-chart { position: sticky; top: 76px; height: calc(100vh - 96px); display: flex; flex-direction: column; overflow: hidden; }
.review-chart .chart-doc { padding: 24px; font-size: 13.5px; }
.rv-code { padding: 10px 12px; border: 1px solid var(--border); border-left-width: 3px; border-radius: var(--radius-sm); display: grid; gap: 6px; background: var(--surface); }
.rv-code.v-correct { border-left-color: var(--green); }
.rv-code.v-partial { border-left-color: var(--amber); }
.rv-code.v-incorrect { border-left-color: var(--red); }
.rv-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.rv-top .cc-code { font-family: var(--mono); font-weight: 600; font-size: 14px; }
.rv-exp { font-size: 13px; color: var(--text-2); background: var(--surface-2); padding: 7px 10px; border-radius: 6px; border: 1px solid var(--border); }
.rv-exp .lbl { display: block; font-size: 11px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; color: var(--muted); margin-bottom: 2px; }
.key-box { padding: 12px 14px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); border-left: 3px solid var(--primary); }
.key-box h4 { font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--primary-ink); margin-bottom: 8px; font-weight: 600; }
.score-live { display: flex; align-items: center; gap: 12px; }
.chart-tabs { display: flex; gap: 6px; flex-wrap: wrap; }
.chart-tab { padding: 6px 12px; border-radius: var(--radius-sm); border: 1px solid var(--border-strong); background: var(--surface); font: 500 13px var(--font); color: var(--text-2); cursor: pointer; }
.chart-tab.active { border-color: var(--primary); background: var(--primary-soft); color: var(--primary-ink); }
.review-foot { position: sticky; bottom: 12px; z-index: 5; box-shadow: var(--shadow-lg); }
/* ---------- Leaderboard ---------- */
.rank-n { width: 28px; height: 28px; border-radius: 7px; display: grid; place-items: center; background: var(--surface-3); font-weight: 600; font-size: 12.5px; color: var(--text-2); flex: none; }
.rank-1 { background: #f6e7b8; color: #7a5a00; }
.rank-2 { background: #e3e7ee; color: #475569; }
.rank-3 { background: #f2dccb; color: #8a4b1c; }
/* ---------- Install ---------- */
.install-steps { display: grid; gap: 8px; margin: 16px 0; }
.install-steps div { display: flex; gap: 9px; align-items: center; font-weight: 500; font-size: 13.5px; }
.ok-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); }
.bad-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); }
.warn-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--amber); }

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-main-side { grid-template-columns: 1fr; }
  .review-grid { grid-template-columns: 1fr; }
  .review-chart { position: relative; top: 0; height: 560px; }
}
@media (max-width: 1000px) {
  .play-grid { grid-template-columns: 1fr; grid-template-rows: 55vh auto; }
  .focus-main { height: auto; min-height: 100vh; overflow: visible; }
  .chart-pane { border-right: 0; border-bottom: 1px solid var(--border); }
  .work-body { overflow: visible; }
}
@media (max-width: 900px) {
  .sidebar { position: fixed; left: 0; top: 0; transform: translateX(-100%); transition: transform .2s; box-shadow: var(--shadow-lg); }
  body.sidebar-open .sidebar { transform: none; }
  body.sidebar-open .sidebar-scrim { display: block; position: fixed; inset: 0; background: rgba(15,23,42,.4); z-index: 35; }
  .only-mobile { display: grid; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .auth-split { grid-template-columns: 1fr; }
  .auth-art { display: none; }
  .uc-text { display: none; }
  .topbar { padding: 10px 16px; }
  .content { padding: 18px 16px 50px; }
  .mission-rules { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .key-row { grid-template-columns: 1fr 36px; }
  .key-row input[type=date] { grid-column: 1 / -1; }
  .notif-menu { width: min(360px, calc(100vw - 32px)); }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
  .tb-title h1 { font-size: 16px; }
  .auth-form, .auth-card { padding: 26px 20px; }
  .bar-row { grid-template-columns: 90px 1fr 40px; }
  .mission-card { padding: 24px 18px; }
  .mission-facts { grid-template-columns: 1fr; }
  .mission-facts div { border-left: 0; border-top: 1px solid var(--border); }
  .mission-facts div:first-child { border-top: 0; }
  .case-dot span { display: none; }
  .dos-card-head { grid-template-columns: 1fr 34px; }
  .dos-card-head .dos-n { grid-column: 1 / -1; justify-self: start; }
  .cond-head { display: none; }
  .cond-row { grid-template-columns: 1fr 34px; }
  .cond-row > input { grid-column: 1; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}