/* Premium visual layer for every LMS tab except Overview (tokens only, so it follows the active
   brand: IK maroon / Unscripta violet, light and dark). Decorated by public/js/login-premium.js.
   Pure skin: no ids or layout of tab content are changed. */
.tab-panel:not(#tab-overview)>.page-header{position:relative;overflow:hidden;isolation:isolate;margin-bottom:20px;padding:22px var(--appbar-actions-w,212px) 22px 24px;border-radius:20px;color:#fff;
  background:linear-gradient(135deg,color-mix(in srgb,var(--brand) 88%,#fff) 0%,var(--brand) 48%,color-mix(in srgb,var(--brand) 52%,#000) 100%);
  box-shadow:0 16px 34px -18px color-mix(in srgb,var(--brand) 75%,transparent)}
.tab-panel:not(#tab-overview)>.page-header::before,.tab-panel:not(#tab-overview)>.page-header::after{content:"";position:absolute;z-index:-1;border-radius:50%;background:rgba(255,255,255,.09);pointer-events:none}
.tab-panel:not(#tab-overview)>.page-header::before{width:220px;height:220px;right:-60px;top:-100px;animation:pmxfloat 10s ease-in-out infinite}
.tab-panel:not(#tab-overview)>.page-header::after{width:130px;height:130px;right:150px;bottom:-80px;animation:pmxfloat 13s ease-in-out infinite reverse}
.tab-panel:not(#tab-overview)>.page-header h1{color:#fff;margin-bottom:4px}
.tab-panel:not(#tab-overview)>.page-header p{color:rgba(255,255,255,.86)}
.tab-panel:not(#tab-overview)>.page-header .pmx-eyebrow{display:block;margin-bottom:5px;font-size:10.5px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:rgba(255,255,255,.72)}
.tab-panel:not(#tab-overview)>.page-header .pmx-ic{flex:none;width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:26px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);backdrop-filter:blur(2px)}
.tab-panel:not(#tab-overview)>.page-header .pmx-wrap{display:flex;align-items:center;gap:16px;min-width:0;flex:1 1 auto}
.tab-panel:not(#tab-overview)>.page-header .page-header-cta,.tab-panel:not(#tab-overview)>.page-header .me-hall-cta,.tab-panel:not(#tab-overview)>.page-header .form-btn{background:#fff;color:color-mix(in srgb,var(--brand) 80%,#000);border:0;border-radius:12px;font-weight:800;box-shadow:0 10px 22px -12px rgba(0,0,0,.55);transition:transform .15s,box-shadow .15s}
.tab-panel:not(#tab-overview)>.page-header .page-header-cta:hover,.tab-panel:not(#tab-overview)>.page-header .me-hall-cta:hover,.tab-panel:not(#tab-overview)>.page-header .form-btn:hover{transform:translateY(-2px);box-shadow:0 14px 26px -12px rgba(0,0,0,.6)}
@media(max-width:768px){.tab-panel:not(#tab-overview)>.page-header{padding:18px 16px}}
@media(max-width:640px){.tab-panel:not(#tab-overview)>.page-header .pmx-ic{width:42px;height:42px;font-size:21px;border-radius:13px}}

/* Stat tiles: a touch of life. */
.tab-panel:not(#tab-overview) .stat-card{transition:transform .18s,box-shadow .18s}
.tab-panel:not(#tab-overview) .stat-card:hover{transform:translateY(-3px);box-shadow:0 14px 26px -16px color-mix(in srgb,var(--brand) 55%,transparent)}

/* Empty states: inviting instead of grey. Applies to every tab, including ones drawn by JS later. */
.tab-panel:not(#tab-overview) .empty-state{border:1.5px dashed color-mix(in srgb,var(--brand) 32%,var(--border,#E7E7EB));border-radius:18px;background:color-mix(in srgb,var(--brand) 4%,transparent);color:var(--muted)}
.tab-panel:not(#tab-overview) .empty-state .empty-icon{width:68px;height:68px;margin:0 auto 12px;border-radius:50%;display:grid;place-items:center;font-size:2rem;background:radial-gradient(circle at 30% 25%,color-mix(in srgb,var(--brand) 22%,transparent),color-mix(in srgb,var(--brand) 8%,transparent));animation:pmxbob 3.2s ease-in-out infinite}
.tab-panel:not(#tab-overview) .card .empty-state{background:transparent}
@keyframes pmxfloat{0%,100%{transform:translate(0,0)}50%{transform:translate(-14px,10px)}}
@keyframes pmxbob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}
@media(prefers-reduced-motion:reduce){.tab-panel:not(#tab-overview)>.page-header::before,.tab-panel:not(#tab-overview)>.page-header::after,.tab-panel:not(#tab-overview) .empty-state .empty-icon{animation:none}}

/* Cambridge Practice (populated state): same family as the rest. */
#tab-cambridge-practice .cp-intel-hero{border-radius:20px;padding:26px}
#tab-cambridge-practice .cp-intel-cta{background:linear-gradient(150deg,var(--brand),color-mix(in srgb,var(--brand) 55%,#000));border:0;border-radius:12px;box-shadow:0 12px 22px -12px color-mix(in srgb,var(--brand) 80%,transparent);transition:transform .15s}
#tab-cambridge-practice .cp-intel-cta:hover{transform:translateY(-2px)}
#tab-cambridge-practice .cp-skill-row{padding:12px 10px;margin:0 -10px;border-radius:12px;transition:background .15s,transform .15s}
#tab-cambridge-practice .cp-skill-row:hover{background:color-mix(in srgb,var(--brand) 6%,transparent);transform:translateX(3px)}
#tab-cambridge-practice .cp-trap-row{border-radius:12px}
#tab-cambridge-practice .cp-pass-col{border-radius:14px}

/* App-bar buttons sit ON TOP of the hero banner (desktop), not on the page background: keep them readable.
   Once the bar is "stuck" it gets its own background and the original styles apply again. */
.sd-topbar:not(.is-stuck) .pre-header-avatar{box-shadow:0 0 0 2px rgba(255,255,255,.9),0 8px 18px rgba(0,0,0,.25)}
.sd-topbar:not(.is-stuck) .pre-header-fine-ping{background:#fff;border-color:rgba(200,16,46,.45);color:#C8102E;box-shadow:0 6px 14px rgba(0,0,0,.18)}
/* Overview Daily Question: a long category label used to wrap into a round blob. */
#tab-overview .ov-daily-q-cat{border-radius:12px;padding:3px 10px;max-width:60%;text-align:center;line-height:1.35}

/* Cambridge Practice: "Tricks That Catch You" cards (login-trap-view.js) */
#pd-traps{display:grid;gap:12px}
.tk-card{--tk:var(--muted,#61616B);border:1px solid var(--border,#E7E7EB);border-left:4px solid var(--tk);border-radius:14px;padding:14px 16px;background:var(--card-bg,#fff)}
.tk-card.tk-high{--tk:var(--danger,#c8102e)}.tk-card.tk-mid{--tk:var(--warning,#b56a12)}.tk-card.tk-low{--tk:var(--success,#278456)}
.tk-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tk-rank{flex:none;width:24px;height:24px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-weight:900;color:#fff;background:var(--tk)}
.tk-name{font-size:14.5px;font-weight:800;color:var(--text,inherit)}
.tk-verdict{margin-left:auto;font-size:11px;font-weight:900;letter-spacing:.04em;padding:3px 10px;border-radius:99px;color:var(--tk);background:color-mix(in srgb,var(--tk) 12%,transparent)}
.tk-desc{margin:8px 0 10px;font-size:13px;line-height:1.55;color:var(--muted,#61616B)}
.tk-meter{display:flex;height:8px;border-radius:99px;overflow:hidden;background:var(--divider,#eee)}
.tk-meter .ok{background:var(--success,#278456)}.tk-meter .bad{background:var(--danger,#c8102e)}
.tk-count{margin-top:6px;font-size:12px;color:var(--muted,#61616B)}.tk-count b{color:var(--text,inherit)}
.tk-tip{margin-top:10px;padding:10px 12px;border-radius:10px;font-size:13px;line-height:1.5;background:color-mix(in srgb,var(--brand) 7%,transparent);color:var(--text,inherit)}
.tk-tip span{display:block;margin-bottom:2px;font-size:10.5px;font-weight:900;letter-spacing:.09em;text-transform:uppercase;color:var(--brand)}
.tk-empty{text-align:center;padding:22px 14px;border-radius:14px;border:1.5px dashed color-mix(in srgb,var(--brand) 32%,var(--border,#E7E7EB));background:color-mix(in srgb,var(--brand) 4%,transparent);color:var(--muted,#61616B)}
.tk-empty-em{font-size:1.8rem;margin-bottom:4px}.tk-empty strong{display:block;color:var(--text,inherit);font-size:14.5px}.tk-empty p{margin:4px auto 0;max-width:340px;font-size:12.5px;line-height:1.5}

/* ── Overview layout: no dead space on wide screens ────────────────────────────────────────────
   1) Engagement rail: the full-width streak bar (grid-column:1/-1) occupies every track, so auto-fit never collapsed the
      empty ones and 3 cards sat in the first 3 of ~6 columns. Flex-wrap lets whatever cards are visible share the row.
   2) Progress row: Hub Activity sat in the left half while the hidden Band Trend card left the right half empty. */
.ov-engagement-rail{display:flex;flex-wrap:wrap}
.ov-engagement-rail>#ov-study-streak-bar,.ov-engagement-rail>#ov-presence-chip{flex:1 1 100%}
.ov-engagement-rail>.card{flex:1 1 260px;min-width:0;height:auto}
.ov-progress-row:has(>#overview-chart-card[style*="none"]),#tab-overview.ovv-nodata .ov-progress-row{grid-template-columns:minmax(0,1fr)}
.ov-progress-row:has(>#overview-chart-card[style*="none"])>#ov-content-coverage-card,#tab-overview.ovv-nodata .ov-progress-row>#ov-content-coverage-card{border-left:0;padding-left:0}