/* Anti-flash gate: hide body until auth.js guardPage() adds .ra-ready
   (unauthenticated visitors get redirected without briefly seeing the app shell).
   Login pages must add the class themselves — they don't call guardPage. */
body{visibility:hidden}
html.ra-ready body{visibility:visible}

/* ============================================================================
   EQUITY RESEARCH LEARNING PLATFORM  —  assets/styles.css
   Shared design system: tokens + reusable components.
   Framework-free. Load on every learner + admin page (admin.css overrides after).
   ----------------------------------------------------------------------------
   SECTIONS
     1.  Design tokens (CSS variables)
     2.  Base / reset / typography
     3.  Layout helpers
     4.  Buttons
     5.  Forms & inputs
     6.  Cards
     7.  Entity / stat / template cards
     8.  Tables
     9.  Badges & chips
     10. Breadcrumbs
     11. Progress (linear + circular)
     12. Tabs
     13. Accordion
     14. Modals & overlays
     15. Toasts
     16. Tooltips
     17. Sidebar & top nav
     18. Empty states
     19. Loading skeletons
     20. Animations (red-vibrate, fades)
     21. Utilities
============================================================================ */

/* ============================================================
   1. DESIGN TOKENS
   ============================================================ */
:root{
  /* --- Color: surfaces --- */
  --bg:#FAF8F3;
  --surface:#FFFFFF;
  --surface-2:#F5F2EA;
  --surface-3:#EFEBE0;

  /* --- Color: brand --- */
  --navy:#0A2540;
  --navy-700:#0F3355;
  --navy-600:#264875;
  --navy-100:#E7ECF2;
  --gold:#B8860B;
  --gold-600:#9A6F09;
  --gold-soft:#F3EAD0;
  --gold-50:#FBF6E9;

  /* --- Color: text --- */
  --ink:#1A1A1A;
  --ink-2:#5A5A5A;
  --ink-3:#8A857A;

  /* --- Color: lines --- */
  --border:#E5E1D8;
  --border-strong:#D6D0C2;

  /* --- Color: semantic --- */
  --success:#1B4332;
  --success-600:#2D6A4F;
  --success-soft:#E4EEE7;
  --error:#B22234;
  --error-soft:rgba(178,34,52,0.15);
  --warn:#B8860B;
  --warn-soft:#F7EFD6;
  --info:#0F3355;
  --info-soft:#E7ECF2;

  /* --- Type --- */
  --serif:'Source Serif 4',Georgia,'Times New Roman',serif;
  --sans:'IBM Plex Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,'SF Mono',monospace;

  /* --- Radius --- */
  --r-sm:4px; --r-md:6px; --r-lg:10px; --r-xl:14px; --r-pill:999px;

  /* --- Shadow --- */
  --sh-1:0 1px 2px rgba(20,30,40,.04);
  --sh-2:0 4px 18px rgba(20,30,40,.08);
  --sh-3:0 18px 50px rgba(10,20,35,.16);

  /* --- Spacing scale --- */
  --s-1:4px; --s-2:8px; --s-3:12px; --s-4:16px; --s-5:20px;
  --s-6:24px; --s-8:32px; --s-10:40px; --s-12:48px;

  /* --- Layout --- */
  --maxw:1280px;
  --topbar-h:64px;
}

/* ============================================================
   2. BASE / RESET / TYPOGRAPHY
   ============================================================ */
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{font-family:var(--serif);font-weight:600;color:var(--ink);line-height:1.15;letter-spacing:-.01em}
h1{font-size:32px} h2{font-size:24px} h3{font-size:19px} h4{font-size:16px}
p{text-wrap:pretty}
a{color:var(--navy);text-decoration:none;transition:color .15s}
a:hover{color:var(--gold)}
.num,.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}
.serif{font-family:var(--serif)}
.kicker{font-family:var(--mono);font-size:12px;letter-spacing:.12em;
  text-transform:uppercase;color:var(--gold)}
.muted{color:var(--ink-2)} .dim{color:var(--ink-3)}
.pos{color:var(--success-600)} .neg{color:var(--error)}

/* ============================================================
   3. LAYOUT HELPERS
   ============================================================ */
.container{max-width:var(--maxw);margin:0 auto;padding:0 32px}
.stack{display:flex;flex-direction:column}
.row{display:flex;align-items:center}
.between{justify-content:space-between}
.wrap{flex-wrap:wrap}
.grid{display:grid}
.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-5{gap:20px}.gap-6{gap:24px}
.flex-1{flex:1}
.page{min-height:100vh;display:flex;flex-direction:column}
.page-body{flex:1;padding:32px 0 56px}
.section-head{margin-bottom:24px}
.section-head .kicker{display:block;margin-bottom:6px}
.section-head h1,.section-head h2{margin-bottom:4px}
.section-head p{color:var(--ink-2);max-width:640px}

/* ============================================================
   4. BUTTONS
   ============================================================ */
.btn{font-family:var(--sans);font-weight:500;font-size:14px;
  border:1px solid transparent;border-radius:var(--r-md);
  padding:9px 16px;cursor:pointer;display:inline-flex;align-items:center;
  gap:8px;transition:all .18s ease;line-height:1;white-space:nowrap;
  text-decoration:none}
.btn svg{width:16px;height:16px;flex:none}
.btn:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-primary{background:var(--navy);color:#fff}
.btn-primary:hover{background:var(--navy-700);color:#fff}
.btn-gold{background:var(--gold);color:#fff}
.btn-gold:hover{filter:brightness(1.07);color:#fff}
.btn-secondary{background:var(--surface);color:var(--navy);border-color:var(--border-strong)}
.btn-secondary:hover{border-color:var(--navy);color:var(--navy)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--border-strong)}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy)}
.btn-danger{background:var(--error);color:#fff}
.btn-danger:hover{filter:brightness(1.06);color:#fff}
.btn-link{background:none;border:none;color:var(--navy);padding:0;text-decoration:underline;
  text-underline-offset:3px}
.btn-link:hover{color:var(--gold)}
.btn-sm{padding:6px 11px;font-size:13px}.btn-sm svg{width:14px;height:14px}
.btn-lg{padding:13px 24px;font-size:15px}
.btn-block{width:100%;justify-content:center}
.btn-pill{border-radius:var(--r-pill)}
.btn-icon{padding:8px;border-radius:var(--r-md)}

/* ============================================================
   5. FORMS & INPUTS
   ============================================================ */
.field-group{margin-bottom:18px}
.field-label{display:block;font-weight:600;font-size:13.5px;color:var(--ink);margin-bottom:7px}
.field-label .req{color:var(--error);margin-left:2px}
.field-hint{font-size:12.5px;color:var(--ink-2);margin-top:6px}
.field-unit{font-family:var(--mono);font-size:12px;color:var(--ink-3);font-weight:400;margin-left:6px}
.input,.textarea,.select{
  width:100%;font-family:var(--sans);font-size:14.5px;color:var(--ink);
  background:var(--surface);border:1.5px solid var(--border-strong);
  border-radius:var(--r-md);padding:11px 13px;transition:all .18s;line-height:1.4}
.input.mono{font-family:var(--mono)}
.input::placeholder,.textarea::placeholder{color:var(--ink-3)}
.input:focus,.textarea:focus,.select:focus{outline:none;border-color:var(--navy);
  box-shadow:0 0 0 3px var(--navy-100)}
.input:disabled,.textarea:disabled{background:var(--surface-2);color:var(--ink-3);cursor:not-allowed}
.input.is-error{border-color:var(--error);background:var(--error-soft)}
.input.is-ok{border-color:var(--success-600);color:var(--success);font-weight:600}
.textarea{resize:vertical;min-height:96px}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235A5A5A' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;padding-right:36px}
.input-icon{position:relative}
.input-icon .input{padding-left:40px}
.input-icon > svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;color:var(--ink-3)}

/* toggle switch */
.toggle{position:relative;display:inline-block;width:42px;height:24px;flex:none;cursor:pointer}
.toggle input{opacity:0;width:0;height:0;position:absolute}
.toggle .track{position:absolute;inset:0;background:var(--border-strong);border-radius:var(--r-pill);transition:.2s}
.toggle .track::before{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;
  background:#fff;border-radius:50%;transition:.2s;box-shadow:var(--sh-1)}
.toggle input:checked + .track{background:var(--success-600)}
.toggle input:checked + .track::before{transform:translateX(18px)}
.toggle input:focus-visible + .track{outline:2px solid var(--gold);outline-offset:2px}

/* checkbox & radio */
.check,.radio{display:inline-flex;align-items:center;gap:9px;cursor:pointer;font-size:14px}
.check input,.radio input{width:17px;height:17px;accent-color:var(--navy);cursor:pointer}

/* fieldset row */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ============================================================
   6. CARDS
   ============================================================ */
.card{background:var(--surface);border:1px solid var(--border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1)}
.card-pad{padding:22px}
.card-head{padding:16px 22px;border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-head h3,.card-head h4{margin:0}
.card-head .tag{font-size:12px;color:var(--ink-3);letter-spacing:.02em}
.card-body{padding:22px}
.card-foot{padding:14px 22px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-hover{transition:transform .18s,box-shadow .18s,border-color .18s;cursor:pointer}
.card-hover:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--border-strong)}

/* ============================================================
   7. ENTITY / STAT / TEMPLATE CARDS
   ============================================================ */
.entity-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px}
.entity-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px 22px 22px;cursor:pointer;transition:transform .18s,box-shadow .18s,border-color .18s;
  display:flex;flex-direction:column;gap:12px;position:relative;overflow:hidden}
.entity-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--navy)}
.entity-card .accent{position:absolute;top:0;left:0;right:0;height:4px}
.entity-emblem{width:52px;height:52px;border-radius:var(--r-lg);display:grid;place-items:center;
  background:var(--navy);color:var(--gold);flex:none;transition:transform .18s}
.entity-card:hover .entity-emblem{transform:scale(1.06)}
.entity-emblem svg{width:26px;height:26px}
.entity-emblem.gold{background:var(--gold-soft);color:var(--navy)}
.entity-card h3{font-size:18px;margin:0}
.entity-card .sub{font-size:13px;color:var(--ink-2);flex:1}
.entity-card .meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--ink-3);
  font-family:var(--mono);padding-top:12px;border-top:1px solid var(--border)}
.entity-card .arrow{position:absolute;top:26px;right:22px;color:var(--border-strong);transition:.18s}
.entity-card:hover .arrow{color:var(--gold);transform:translateX(3px)}

/* stat card */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px}
.stat-card .label{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3)}
.stat-card .value{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--ink);margin-top:8px;line-height:1}
.stat-card .delta{font-size:12.5px;margin-top:8px;font-family:var(--mono)}
.stat-card .icon{width:34px;height:34px;border-radius:var(--r-md);background:var(--navy-100);
  color:var(--navy);display:grid;place-items:center;float:right}
.stat-card .icon svg{width:18px;height:18px}

/* template card */
.tpl-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);
  overflow:hidden;cursor:pointer;transition:transform .18s,box-shadow .18s,border-color .18s;
  display:flex;flex-direction:column}
.tpl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--navy)}
.tpl-card.selected{border-color:var(--navy);box-shadow:0 0 0 2px var(--navy)}
.tpl-thumb{height:150px;background:var(--surface-2);border-bottom:1px solid var(--border);
  position:relative;overflow:hidden}
.tpl-thumb .mini{position:absolute;inset:0;padding:14px;display:flex;flex-direction:column;gap:6px}
.tpl-thumb .bar{height:7px;border-radius:2px;background:var(--border-strong)}
.tpl-body{padding:18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.tpl-body h3{margin:0}
.tpl-body .desc{font-size:13px;color:var(--ink-2);flex:1}
.tpl-meta{display:flex;gap:16px;font-size:12px;color:var(--ink-3);font-family:var(--mono);
  padding-top:12px;border-top:1px solid var(--border)}

/* ============================================================
   8. TABLES
   ============================================================ */
.table-wrap{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}
table.data{width:100%;border-collapse:collapse;font-size:13.5px}
table.data th{text-align:left;padding:12px 16px;font-weight:600;font-size:11.5px;
  letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);background:var(--surface-2);
  border-bottom:1px solid var(--border);white-space:nowrap}
table.data th.sortable{cursor:pointer;user-select:none}
table.data th.sortable:hover{color:var(--navy)}
table.data th.num,table.data td.num{text-align:right;font-family:var(--mono)}
table.data td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--ink)}
table.data tbody tr{transition:background .12s}
table.data tbody tr:hover{background:var(--surface-2)}
table.data tbody tr:last-child td{border-bottom:none}
.row-actions{display:flex;gap:6px;justify-content:flex-end}
.table-toolbar{display:flex;align-items:center;gap:12px;padding:16px 0;flex-wrap:wrap}
.table-toolbar .flex-1{flex:1}
.pagination{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;
  border-top:1px solid var(--border);font-size:13px;color:var(--ink-2)}
.pagination .pages{display:flex;gap:4px}
.pagination .pages button{width:32px;height:32px;border:1px solid var(--border);background:var(--surface);
  border-radius:var(--r-sm);cursor:pointer;font-family:var(--mono);font-size:13px;color:var(--ink-2)}
.pagination .pages button:hover{border-color:var(--navy)}
.pagination .pages button.active{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ============================================================
   9. BADGES & CHIPS
   ============================================================ */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:600;
  padding:3px 9px;border-radius:var(--r-pill);letter-spacing:.02em;line-height:1.4}
.badge.success{background:var(--success-soft);color:var(--success)}
.badge.error{background:var(--error-soft);color:var(--error)}
.badge.warn{background:var(--warn-soft);color:var(--gold-600)}
.badge.info{background:var(--info-soft);color:var(--info)}
.badge.neutral{background:var(--surface-2);color:var(--ink-2)}
.badge.gold{background:var(--gold-soft);color:var(--gold-600)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
.badge-count{min-width:20px;height:20px;padding:0 6px;border-radius:var(--r-pill);
  background:var(--navy);color:#fff;font-family:var(--mono);font-size:11px;font-weight:600;
  display:inline-flex;align-items:center;justify-content:center}
.diff{font-size:11px;font-weight:600;padding:3px 10px;border-radius:var(--r-pill);text-transform:uppercase;letter-spacing:.06em}
.diff.beginner{background:var(--success-soft);color:var(--success)}
.diff.moderate{background:var(--warn-soft);color:var(--gold-600)}
.diff.advanced{background:var(--navy-100);color:var(--navy)}

/* ============================================================
   10. BREADCRUMBS
   ============================================================ */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);flex-wrap:wrap}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--gold)}
.crumbs .sep{color:var(--border-strong)}
.crumbs .cur{color:var(--ink);font-weight:600}

/* ============================================================
   11. PROGRESS
   ============================================================ */
.pbar{height:7px;background:var(--surface-2);border-radius:var(--r-pill);overflow:hidden;
  border:1px solid var(--border)}
.pbar > i{display:block;height:100%;background:linear-gradient(90deg,var(--navy),var(--gold));
  border-radius:var(--r-pill);transition:width .5s ease}
.pbar.thin{height:5px}
.progress-ring{transform:rotate(-90deg)}
.progress-ring circle{fill:none;stroke-width:4}
.progress-ring .track{stroke:var(--surface-3)}
.progress-ring .val{stroke:var(--navy);stroke-linecap:round;transition:stroke-dashoffset .6s ease}

/* ============================================================
   12. TABS
   ============================================================ */
.tabs{display:flex;gap:2px;background:var(--surface-2);border-radius:var(--r-md);padding:3px;width:fit-content}
.tab{font-size:13px;font-weight:500;color:var(--ink-2);padding:7px 15px;border-radius:var(--r-sm);
  cursor:pointer;transition:all .15s;border:none;background:none;font-family:var(--sans)}
.tab:hover{color:var(--ink)}
.tab.active{background:var(--surface);color:var(--navy);box-shadow:var(--sh-1);font-weight:600}
.tab-panel{display:none;animation:fadein .25s ease}
.tab-panel.active{display:block}
/* underline tab variant */
.tabs-line{display:flex;gap:4px;border-bottom:1px solid var(--border)}
.tabs-line .tab{border-radius:0;border-bottom:2px solid transparent;background:none;padding:11px 4px;margin-right:20px}
.tabs-line .tab.active{background:none;box-shadow:none;border-bottom-color:var(--navy);color:var(--navy)}

/* ============================================================
   13. ACCORDION
   ============================================================ */
.accordion{border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden}
.acc-item{border-bottom:1px solid var(--border)}
.acc-item:last-child{border-bottom:none}
.acc-head{width:100%;text-align:left;background:var(--surface);border:none;cursor:pointer;
  padding:14px 16px;display:flex;align-items:center;gap:10px;font-size:14px;font-weight:500;
  color:var(--ink);font-family:var(--sans)}
.acc-head:hover{background:var(--surface-2)}
.acc-head .chev{width:16px;height:16px;transition:transform .2s;color:var(--ink-3)}
.acc-item.open .acc-head .chev{transform:rotate(90deg)}
.acc-body{display:none;padding:0 16px 16px;font-size:13.5px;color:var(--ink-2);line-height:1.65}
.acc-item.open .acc-body{display:block;animation:fadein .25s ease}

/* ============================================================
   14. MODALS & OVERLAYS
   ============================================================ */
.overlay{position:fixed;inset:0;background:rgba(10,20,35,.45);opacity:0;pointer-events:none;
  transition:opacity .25s;z-index:100;display:flex;align-items:center;justify-content:center;padding:24px}
.overlay.show{opacity:1;pointer-events:auto}
.modal{background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-3);
  width:min(560px,100%);max-height:88vh;display:flex;flex-direction:column;overflow:hidden;
  transform:translateY(12px) scale(.98);transition:transform .25s}
.overlay.show .modal{transform:none}
.modal.wide{width:min(860px,100%)}
.modal-head{padding:20px 24px;border-bottom:1px solid var(--border);display:flex;
  align-items:flex-start;justify-content:space-between;gap:16px}
.modal-head h3{margin:0}
.modal-head .sub{font-size:13px;color:var(--ink-2);margin-top:3px}
.modal-body{padding:24px;overflow-y:auto}
.modal-foot{padding:16px 24px;border-top:1px solid var(--border);display:flex;
  justify-content:flex-end;gap:10px;background:var(--surface-2)}
.modal-close{background:var(--surface-2);border:none;width:34px;height:34px;border-radius:var(--r-md);
  cursor:pointer;display:grid;place-items:center;color:var(--ink-2);flex:none}
.modal-close:hover{background:var(--surface-3);color:var(--ink)}
.modal-close svg{width:18px;height:18px}

/* slide-in drawer */
.drawer{position:fixed;top:0;right:0;height:100%;width:min(720px,92vw);background:var(--bg);
  box-shadow:var(--sh-3);z-index:110;transform:translateX(100%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}
.drawer.show{transform:none}

/* ============================================================
   15. TOASTS
   ============================================================ */
.toast-stack{position:fixed;bottom:24px;right:24px;z-index:200;display:flex;flex-direction:column;gap:10px}
.toast{background:var(--surface);border:1px solid var(--border);border-left:4px solid var(--navy);
  border-radius:var(--r-md);box-shadow:var(--sh-2);padding:13px 16px;min-width:280px;max-width:380px;
  display:flex;align-items:flex-start;gap:11px;animation:slidein .3s ease}
.toast.success{border-left-color:var(--success-600)}
.toast.error{border-left-color:var(--error)}
.toast.warn{border-left-color:var(--gold)}
.toast .t-icon{width:18px;height:18px;flex:none;margin-top:1px}
.toast.success .t-icon{color:var(--success-600)}
.toast.error .t-icon{color:var(--error)}
.toast .t-body{flex:1;font-size:13.5px}
.toast .t-body b{display:block;color:var(--ink);margin-bottom:1px}
.toast .t-body span{color:var(--ink-2)}
.toast .t-close{background:none;border:none;cursor:pointer;color:var(--ink-3);padding:0}

/* ============================================================
   16. TOOLTIPS
   ============================================================ */
.tip{position:relative;display:inline-flex}
.tip::after{content:attr(data-tip);position:absolute;bottom:calc(100% + 8px);left:50%;
  transform:translateX(-50%) translateY(4px);background:var(--navy);color:#fff;font-size:12px;
  font-family:var(--sans);padding:6px 10px;border-radius:var(--r-sm);white-space:nowrap;
  opacity:0;pointer-events:none;transition:all .18s;z-index:50;box-shadow:var(--sh-2)}
.tip:hover::after{opacity:1;transform:translateX(-50%)}

/* ============================================================
   17. SIDEBAR & TOP NAV
   ============================================================ */
.topnav{height:var(--topbar-h);background:var(--navy);color:#fff;display:flex;align-items:center;
  gap:24px;padding:0 26px;position:sticky;top:0;z-index:40}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);font-weight:600;
  font-size:17px;letter-spacing:.2px;white-space:nowrap;color:#fff}
.brand:hover{color:#fff}
.brand .mark{width:28px;height:28px;border:1.5px solid var(--gold);border-radius:4px;
  display:grid;place-items:center;color:var(--gold);font-family:var(--mono);font-size:13px;font-weight:600}
.topnav .spacer{flex:1}
.topnav-links{display:flex;gap:4px}
.topnav-links a{color:#C9D2DE;font-size:14px;padding:8px 12px;border-radius:var(--r-md)}
.topnav-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
.topnav-links a.active{color:#fff;background:rgba(255,255,255,.12)}
.user-chip{display:flex;align-items:center;gap:10px;cursor:pointer;padding:5px 6px 5px 12px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18)}
.user-chip:hover{background:rgba(255,255,255,.08)}
.user-chip .name{font-size:13.5px;color:#fff}
.avatar{width:30px;height:30px;border-radius:50%;background:var(--gold);color:var(--navy);
  display:grid;place-items:center;font-weight:600;font-size:13px;font-family:var(--sans)}

/* app shell w/ sidebar (admin) */
.shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}
.sidebar{background:var(--navy);color:#C9D2DE;padding:0;display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar .brand{padding:20px 22px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:8px}
.sidebar h5{font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#6B7C90;
  padding:16px 22px 8px;font-weight:600;font-family:var(--sans)}
.side-link{display:flex;align-items:center;gap:11px;padding:10px 22px;color:#C9D2DE;font-size:14px;
  border-left:3px solid transparent;cursor:pointer;transition:background .15s}
.side-link:hover{background:rgba(255,255,255,.06);color:#fff}
.side-link.active{background:rgba(255,255,255,.1);color:#fff;border-left-color:var(--gold)}
.side-link svg{width:18px;height:18px;flex:none;opacity:.85}
.side-link .badge-count{margin-left:auto}
.sidebar .side-foot{margin-top:auto;padding:16px 22px;border-top:1px solid rgba(255,255,255,.1)}
.shell-main{display:flex;flex-direction:column;min-width:0}
.admin-topbar{height:60px;background:var(--surface);border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:16px;padding:0 28px;position:sticky;top:0;z-index:30}
.admin-topbar h2{font-size:18px;margin:0}
.admin-topbar .spacer{flex:1}
.admin-content{padding:28px;flex:1}

/* ============================================================
   18. EMPTY STATES
   ============================================================ */
.empty{text-align:center;padding:56px 24px;max-width:420px;margin:0 auto}
.empty .emp-icon{width:56px;height:56px;border-radius:var(--r-lg);background:var(--surface-2);
  color:var(--ink-3);display:grid;place-items:center;margin:0 auto 18px}
.empty .emp-icon svg{width:26px;height:26px}
.empty h3{margin-bottom:8px}
.empty p{color:var(--ink-2);font-size:14px;margin-bottom:18px}

/* ============================================================
   19. LOADING SKELETONS
   ============================================================ */
.skeleton{background:linear-gradient(90deg,var(--surface-2) 25%,var(--surface-3) 50%,var(--surface-2) 75%);
  background-size:200% 100%;animation:shimmer 1.4s infinite;border-radius:var(--r-sm)}
.skeleton.line{height:12px;margin:8px 0}
.skeleton.title{height:20px;width:50%;margin-bottom:14px}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ============================================================
   20. ANIMATIONS
   ============================================================ */
@keyframes fadein{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
@keyframes slidein{from{opacity:0;transform:translateX(20px)}to{opacity:1;transform:none}}
@keyframes fadeup{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
/* red-vibrate alert (Match Mode wrong entry) */
@keyframes shake{
  0%,100%{transform:translateX(0)}
  15%{transform:translateX(-5px)} 30%{transform:translateX(5px)}
  45%{transform:translateX(-4px)} 60%{transform:translateX(4px)}
  75%{transform:translateX(-2px)} 90%{transform:translateX(2px)}}
.shake{animation:shake .48s cubic-bezier(.36,.07,.19,.97)}
@keyframes redpulse{0%{background:var(--error-soft)}100%{background:var(--surface)}}
.redpulse{animation:redpulse .9s ease}
@keyframes greenflash{0%{background:#CFE6D8}100%{background:var(--surface)}}
.greenflash{animation:greenflash .8s ease}
.fade-up{animation:fadeup .35s ease both}

/* ============================================================
   21. UTILITIES
   ============================================================ */
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}
.mt-6{margin-top:24px}.mt-8{margin-top:32px}
.mb-2{margin-top:0;margin-bottom:8px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}
.text-c{text-align:center}.text-r{text-align:right}
.hidden{display:none!important}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.divider-h{height:1px;background:var(--border);margin:20px 0}
.scroll-y{overflow-y:auto}
.scroll-y::-webkit-scrollbar{width:9px;height:9px}
.scroll-y::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:99px;border:2px solid var(--bg)}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:900px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;z-index:120;transform:translateX(-100%);transition:transform .3s}
  .sidebar.open{transform:none}
  .form-row{grid-template-columns:1fr}
  .container{padding:0 20px}
}