/* ============================================================
   STUDIA - COMPLETE APP DESIGN SYSTEM  v2
   One stylesheet for: landing / login / signup / dashboard
   Requires Bootstrap 5.3 + Google Fonts (Bricolage Grotesque,
   Figtree, Spline Sans Mono) loaded before this file.
   ============================================================ */
:root{
  --ink:#171F38; --ink-soft:#46536F; --muted:#7A86A0;
  --paper:#FDFCF9; --surface:#FFFFFF; --line:#E8E6DE;

  --blue:#2F55D4;  --blue-deep:#2140AC; --blue-t:#EBF0FF;
  --teal:#0E9384;  --teal-t:#DDF5F0;
  --coral:#F4643C; --coral-t:#FEEAE2;
  --gold:#FFC933;  --gold-t:#FFF4CE;
  --violet:#7C5CE0;--violet-t:#EFEAFD;
  --pink:#EC5FA3;  --pink-t:#FDE9F3;
  --green:#2FA866; --green-t:#E2F6EA;
  --sky:#2BA6DE;   --sky-t:#E2F3FB;

  --fd:"Bricolage Grotesque","Segoe UI",sans-serif;
  --fb:"Figtree","Segoe UI",sans-serif;
  --fm:"Spline Sans Mono",Consolas,monospace;

  --r:16px; --r-lg:24px;
  --sh:0 2px 6px rgba(23,31,56,.05),0 10px 30px rgba(23,31,56,.07);
  --sh-lg:0 12px 44px rgba(23,31,56,.14);
}
*{box-sizing:border-box}
body{background:var(--paper);color:var(--ink-soft);font-family:var(--fb);font-size:.97rem;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5,h6{font-family:var(--fd);color:var(--ink);font-weight:800;letter-spacing:-.015em}
a{text-decoration:none}
section{padding:5.5rem 0;position:relative}
::selection{background:var(--gold);color:var(--ink)}
:focus-visible{outline:3px solid rgba(47,85,212,.4);outline-offset:2px;border-radius:6px}

/* Highlighter swipe */
.hl{position:relative;white-space:nowrap;z-index:0}
.hl::before{content:"";position:absolute;left:-.22em;right:-.22em;bottom:.03em;height:.55em;
  background:var(--gold);transform:skew(-12deg) rotate(-.6deg);border-radius:3px;z-index:-1}
.hl.teal::before{background:#9BE8DD}
.hl.pink::before{background:#FBCBE4}

/* Eyebrow chips */
.chip{display:inline-flex;align-items:center;gap:.45rem;font-weight:700;font-size:.78rem;
  letter-spacing:.05em;text-transform:uppercase;border-radius:999px;padding:.4rem 1rem}
.chip.blue{background:var(--blue-t);color:var(--blue)}
.chip.teal{background:var(--teal-t);color:var(--teal)}
.chip.coral{background:var(--coral-t);color:var(--coral)}
.chip.violet{background:var(--violet-t);color:var(--violet)}
.chip.green{background:var(--green-t);color:var(--green)}
.chip.gold{background:var(--gold-t);color:#8A6A00}

/* Buttons */
.btn{font-weight:700;border-radius:12px;padding:.55rem 1.25rem}
.btn-primary{background:var(--blue);border-color:var(--blue);box-shadow:0 4px 14px rgba(47,85,212,.35)}
.btn-primary:hover{background:var(--blue-deep);border-color:var(--blue-deep)}
.btn-ghost{background:var(--surface);border:1.5px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn-sun{background:var(--gold);border:none;color:var(--ink);box-shadow:0 4px 14px rgba(255,201,51,.5)}
.btn-sun:hover{background:#F5BD1E;color:var(--ink)}
.btn-teal{background:var(--teal);border-color:var(--teal);color:#fff}
.btn-teal:hover{background:#0B7A6E;color:#fff}

/* Brand */
.navbar-brand{font-family:var(--fd);font-weight:800;font-size:1.5rem;color:var(--ink)!important;display:flex;align-items:center;gap:.5rem}
.brand-mark{width:2.1rem;height:2.1rem;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--violet));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:1.05rem;box-shadow:0 4px 12px rgba(47,85,212,.35);flex-shrink:0}
.brand-ia{background:linear-gradient(90deg,var(--teal),var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent}

/* -- NAVBAR (landing) -- */
.navbar{background:rgba(253,252,249,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);padding:.8rem 0}
.nav-link{color:var(--ink-soft)!important;font-weight:600;border-radius:999px;padding:.45rem 1.05rem!important}
.nav-link:hover{background:var(--blue-t);color:var(--blue)!important}

/* -- HERO -- */
.hero{padding:6rem 0 4.5rem;overflow:hidden;position:relative;
  background:
   radial-gradient(700px 420px at 12% -8%,rgba(124,92,224,.14),transparent 65%),
   radial-gradient(760px 460px at 92% 6%,rgba(14,147,132,.14),transparent 65%),
   radial-gradient(560px 380px at 55% 110%,rgba(255,201,51,.16),transparent 65%),
   var(--paper)}
.hero h1{font-size:clamp(2.5rem,5.4vw,4rem);line-height:1.08}
.hero .lead{font-size:1.15rem;color:var(--ink-soft);max-width:530px;font-weight:500}
.doodle{position:absolute;font-family:var(--fd);font-weight:800;user-select:none;pointer-events:none;animation:float 7s ease-in-out infinite}
.doodle.d1{top:12%;left:4%;font-size:2rem;color:var(--violet);transform:rotate(-12deg)}
.doodle.d2{top:58%;left:2.5%;font-size:1.6rem;color:var(--coral);animation-delay:1.4s}
.doodle.d3{top:8%;right:6%;font-size:2.1rem;color:var(--teal);animation-delay:.7s;transform:rotate(10deg)}
.doodle.d4{bottom:10%;right:3%;font-size:1.7rem;color:var(--pink);animation-delay:2.2s}
.doodle.d5{top:38%;right:1.5%;font-size:1.4rem;color:var(--gold);animation-delay:3s}
@keyframes float{0%,100%{transform:translateY(0) rotate(var(--rot,0deg))}50%{transform:translateY(-12px) rotate(var(--rot,0deg))}}
.hero-badges{display:flex;flex-wrap:wrap;gap:.6rem}
.hero-badge{display:inline-flex;align-items:center;gap:.45rem;background:var(--surface);border:1.5px solid var(--line);
  border-radius:999px;padding:.4rem .95rem;font-size:.85rem;font-weight:700;color:var(--ink);box-shadow:var(--sh)}

/* App-window mock */
.mock{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-lg);overflow:hidden;position:relative}
.mock-top{display:flex;align-items:center;gap:.45rem;padding:.75rem 1rem;background:linear-gradient(90deg,var(--blue),var(--violet));color:#fff}
.mock-top .dots{display:flex;gap:.35rem}
.mock-top .dots span{width:.55rem;height:.55rem;border-radius:50%;background:rgba(255,255,255,.45)}
.mock-top .dots span:first-child{background:var(--gold)}
.mock-title{font-family:var(--fm);font-size:.72rem;letter-spacing:.1em;margin-left:auto;opacity:.9}
.ai-note{border-left:4px solid var(--teal);background:linear-gradient(90deg,var(--teal-t),transparent 60%);border-radius:12px;padding:.9rem 1rem}
.ai-tag{display:inline-flex;align-items:center;gap:.3rem;background:var(--teal-t);color:var(--teal);
  font-family:var(--fm);font-size:.66rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;
  border:1px solid rgba(14,147,132,.3);padding:.18rem .55rem;border-radius:999px}
.ok-chip{background:var(--green-t);color:#1F7A49;font-size:.72rem;font-weight:700;border-radius:999px;padding:.25rem .65rem}
.warn-chip{background:var(--coral-t);color:#B23A17;font-size:.72rem;font-weight:700;border-radius:999px;padding:.25rem .65rem}
.bub{max-width:88%;padding:.65rem .95rem;border-radius:14px;font-size:.88rem;line-height:1.5}
.bub.me{background:var(--blue);color:#fff;border-bottom-right-radius:4px;margin-left:auto}
.bub.ai{background:#F6F5EF;border:1px solid var(--line);color:var(--ink-soft);border-bottom-left-radius:4px}
.mock-float{position:absolute;background:var(--surface);border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--sh-lg);padding:.7rem .95rem;font-size:.8rem;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:.55rem}
.mf1{top:1.2rem;left:-2.4rem;animation:float 6s ease-in-out infinite}
.mf2{bottom:2.2rem;right:-1.8rem;animation:float 6s ease-in-out infinite;animation-delay:1.5s}
.mf-ic{width:1.9rem;height:1.9rem;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:.95rem}
@media(max-width:991px){.mf1{left:.5rem}.mf2{right:.5rem}}

/* -- SUBJECT RIBBON -- */
.ribbon{background:var(--ink);padding:1.05rem 0;overflow:hidden}
.ribbon-track{display:flex;gap:2.5rem;white-space:nowrap;animation:slide 30s linear infinite;width:max-content}
.ribbon-track span{font-family:var(--fd);font-weight:700;font-size:.95rem;color:#fff;opacity:.92;display:inline-flex;align-items:center;gap:.55rem}
.ribbon-track .st{color:var(--gold)}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* -- STATS -- */
.stat-card{border:none;border-radius:var(--r);padding:1.6rem 1.4rem;height:100%;box-shadow:var(--sh)}
.stat-card .n{font-family:var(--fd);font-weight:800;font-size:2.1rem;line-height:1.1;color:var(--ink)}
.stat-card .l{font-size:.85rem;font-weight:600;color:var(--ink-soft)}
.stat-card.c1{background:var(--blue-t)}.stat-card.c2{background:var(--teal-t)}
.stat-card.c3{background:var(--gold-t)}.stat-card.c4{background:var(--coral-t)}

/* -- FEATURES -- */
.feature{border:1px solid var(--line);border-radius:var(--r-lg);padding:1.9rem;height:100%;background:var(--surface);
  box-shadow:var(--sh);transition:transform .18s ease,box-shadow .18s ease;position:relative;overflow:hidden}
.feature:hover{transform:translateY(-5px);box-shadow:var(--sh-lg)}
.feature::after{content:"";position:absolute;top:0;left:0;right:0;height:5px;border-radius:99px 99px 0 0}
.feature.f-teal::after{background:var(--teal)} .feature.f-blue::after{background:var(--blue)}
.feature.f-gold::after{background:var(--gold)} .feature.f-green::after{background:var(--green)}
.feature.f-violet::after{background:var(--violet)} .feature.f-coral::after{background:var(--coral)}
.f-ic{width:3.2rem;height:3.2rem;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:1.45rem;margin-bottom:1.05rem}
.f-teal .f-ic{background:var(--teal-t)} .f-blue .f-ic{background:var(--blue-t)}
.f-gold .f-ic{background:var(--gold-t)} .f-green .f-ic{background:var(--green-t)}
.f-violet .f-ic{background:var(--violet-t)} .f-coral .f-ic{background:var(--coral-t)}
.feature h5{font-size:1.08rem;margin-bottom:.55rem}
.feature p{font-size:.9rem;margin:0}
.feature .pill{display:inline-block;margin-top:.9rem;font-family:var(--fm);font-size:.68rem;letter-spacing:.08em;
  text-transform:uppercase;font-weight:600;color:var(--muted)}

/* -- HOW IT WORKS -- */
.how{background:linear-gradient(180deg,#fff,var(--paper));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{position:relative;padding:2rem;border-radius:var(--r-lg);height:100%}
.step.s1{background:var(--blue-t)} .step.s2{background:var(--teal-t)} .step.s3{background:var(--gold-t)}
.step-n{width:3rem;height:3rem;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--fd);font-weight:800;font-size:1.15rem;color:#fff;margin-bottom:1rem;box-shadow:var(--sh)}
.s1 .step-n{background:var(--blue)} .s2 .step-n{background:var(--teal)} .s3 .step-n{background:#E0A400}
.step h5{font-size:1.1rem}
.step p{font-size:.92rem;margin:0}
.step .arrow{position:absolute;top:50%;right:-2.1rem;font-size:1.8rem;color:var(--muted);display:none}
@media(min-width:992px){.step .arrow{display:block}}

/* -- TEACHER PANEL -- */
.review-card{background:var(--surface);border:1.5px dashed rgba(14,147,132,.55);border-left:4px solid var(--teal);
  border-radius:var(--r);padding:1.1rem 1.2rem}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{display:flex;gap:.7rem;align-items:flex-start;padding:.5rem 0;font-weight:600;color:var(--ink)}
.check-list .tick{width:1.5rem;height:1.5rem;border-radius:50%;background:var(--green-t);color:var(--green);
  display:inline-flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:800;flex-shrink:0;margin-top:.1rem}

/* -- TESTIMONIALS -- */
.tcard{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);padding:1.75rem;height:100%;box-shadow:var(--sh)}
.tcard p{font-size:.95rem;color:var(--ink-soft)}
.avatar{width:2.7rem;height:2.7rem;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--fd);font-weight:800;color:#fff;font-size:.95rem;flex-shrink:0}
.stars{color:var(--gold);letter-spacing:.1em}

/* -- PRICING -- */
.price{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);height:100%;overflow:hidden;box-shadow:var(--sh)}
.price-head{padding:1.5rem 1.75rem 1.15rem}
.price-head.p1{background:var(--teal-t)} .price-head.p2{background:var(--blue-t)} .price-head.p3{background:var(--violet-t)}
.price-body{padding:1.4rem 1.75rem 1.75rem}
.price .amt{font-family:var(--fd);font-weight:800;font-size:2.5rem;color:var(--ink)}
.price .per{font-size:.82rem;color:var(--muted);font-weight:600}
.price ul{list-style:none;padding:0;margin:0 0 1.4rem}
.price li{padding:.45rem 0;font-size:.92rem;display:flex;gap:.6rem}
.price li::before{content:"\2713";font-weight:800}
.p1-c li::before{color:var(--teal)} .p2-c li::before{color:var(--blue)} .p3-c li::before{color:var(--violet)}
.price.featured{border:2.5px solid var(--blue);box-shadow:var(--sh-lg);transform:scale(1.02)}
.pop{background:var(--gold);color:var(--ink);font-size:.72rem;font-weight:800;border-radius:999px;padding:.28rem .8rem;letter-spacing:.05em}

/* -- CTA -- */
.cta{border-radius:28px;padding:4.2rem 2rem;text-align:center;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--blue) 0%,var(--violet) 55%,var(--teal) 120%)}
.cta h2{color:#fff;font-size:clamp(1.8rem,3.6vw,2.6rem)}
.cta p{color:rgba(255,255,255,.85);max-width:540px;margin-inline:auto}
.cta .spark{position:absolute;font-size:8rem;opacity:.12;font-family:var(--fd);font-weight:800}
.cta .sp1{top:-2rem;left:-1rem;transform:rotate(-15deg)}
.cta .sp2{bottom:-3rem;right:-.5rem;transform:rotate(12deg)}

/* -- FOOTER -- */
footer{background:var(--ink);color:#B9C1D6;padding:3.5rem 0 2rem}
footer h6{color:#fff;font-size:.78rem;text-transform:uppercase;letter-spacing:.12em;font-family:var(--fm);font-weight:600}
footer a{color:#B9C1D6;display:block;padding:.22rem 0;font-size:.9rem}
footer a:hover{color:#fff}
.foot-line{border-top:1px solid rgba(255,255,255,.12);margin-top:2.5rem;padding-top:1.5rem;font-size:.85rem;color:#8792AC}

/* ============================================================
   AUTH - LOGIN & SIGNUP
   ============================================================ */
.auth-wrap{min-height:100vh;display:flex}
.auth-side{flex:0 0 44%;position:relative;overflow:hidden;color:#fff;display:none;flex-direction:column;
  justify-content:space-between;padding:3rem;
  background:linear-gradient(150deg,var(--blue) 0%,var(--violet) 60%,var(--teal) 130%)}
@media(min-width:992px){.auth-side{display:flex}}
.auth-side .doodle{opacity:.55}
.auth-side .ad1{top:22%;left:8%;font-size:2rem;color:#FFD84D}
.auth-side .ad2{top:48%;right:10%;font-size:1.7rem;color:#9BE8DD}
.auth-side .ad3{bottom:26%;left:14%;font-size:1.5rem;color:#FBCBE4}
.auth-quote{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(6px);
  border-radius:var(--r-lg);padding:1.5rem}
.auth-quote p{color:#fff;font-family:var(--fd);font-weight:600;font-size:1.05rem;line-height:1.5}
.auth-main{flex:1;display:flex;align-items:center;justify-content:center;padding:2.5rem 1.25rem}
.auth-card{width:100%;max-width:440px}
.auth-card h3{font-size:1.7rem}
.form-label{font-weight:700;color:var(--ink);font-size:.87rem}
.form-control,.form-select{border:1.5px solid var(--line);border-radius:12px;padding:.65rem .9rem;background:var(--surface);color:var(--ink)}
.form-control:focus,.form-select:focus{border-color:var(--blue);box-shadow:0 0 0 .22rem rgba(47,85,212,.14)}
.input-icon{position:relative}
.input-icon .ico{position:absolute;left:.9rem;top:50%;transform:translateY(-50%);font-size:1rem;opacity:.55}
.input-icon .form-control{padding-left:2.5rem}
.pw-toggle{position:absolute;right:.9rem;top:50%;transform:translateY(-50%);border:none;background:none;font-size:1rem;opacity:.55;cursor:pointer}
.sso-btn{display:flex;align-items:center;justify-content:center;gap:.7rem;width:100%;border:1.5px solid var(--line);
  border-radius:12px;background:var(--surface);padding:.65rem 1rem;font-weight:700;color:var(--ink);transition:border-color .12s,background .12s}
.sso-btn:hover{border-color:var(--ink);background:#FBFAF6;color:var(--ink)}
.sso-btn img,.sso-btn svg{width:1.25rem;height:1.25rem}
.sso-btn .em-mark{width:1.4rem;height:1.4rem;border-radius:6px;background:linear-gradient(135deg,var(--coral),var(--gold));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-family:var(--fd);font-weight:800;font-size:.75rem}
.divider{display:flex;align-items:center;gap:1rem;color:var(--muted);font-size:.8rem;font-weight:600;margin:1.4rem 0}
.divider::before,.divider::after{content:"";flex:1;border-top:1.5px solid var(--line)}
.role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.7rem}
.role-card{border:2px solid var(--line);border-radius:var(--r);background:var(--surface);padding:1rem .5rem;
  text-align:center;cursor:pointer;font-weight:700;color:var(--ink);font-size:.85rem;transition:all .12s}
.role-card .em{font-size:1.5rem;display:block;margin-bottom:.35rem}
.role-card:hover{border-color:var(--muted)}
.role-card.active{border-color:var(--blue);background:var(--blue-t);box-shadow:var(--sh)}
.auth-foot{font-size:.9rem;color:var(--muted)}
.auth-foot a{color:var(--blue);font-weight:700}

/* ============================================================
   DASHBOARD - APP SHELL
   ============================================================ */
.app{display:flex;min-height:100vh;background:var(--paper)}
.sidebar{width:256px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:1.4rem 1rem;position:sticky;top:0;height:100vh;overflow-y:auto}
.side-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:.5rem;margin-bottom:.2rem}
.side-user{font-size:.8rem;font-weight:700;color:var(--muted);padding:.45rem .8rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.side-brand{display:flex;align-items:center;gap:.55rem;font-family:var(--fd);font-weight:800;font-size:1.35rem;color:var(--ink);padding:0 .5rem 1.2rem}
.side-sec{font-family:var(--fm);font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  font-weight:600;padding:.9rem .8rem .4rem}
.side-link{display:flex;align-items:center;gap:.75rem;padding:.6rem .8rem;border-radius:12px;color:var(--ink-soft);
  font-weight:600;font-size:.93rem;margin-bottom:.15rem}
.side-link .si{width:1.9rem;height:1.9rem;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:.95rem;background:var(--paper)}
.side-link:hover{background:var(--paper);color:var(--ink)}
.side-link.active{background:var(--blue);color:#fff;box-shadow:0 4px 14px rgba(47,85,212,.3)}
.side-link.active .si{background:rgba(255,255,255,.18)}
.side-link .cnt{margin-left:auto;font-size:.7rem;font-weight:800;background:var(--coral);color:#fff;border-radius:999px;padding:.1rem .5rem}
.side-upgrade{margin-top:auto;background:linear-gradient(135deg,var(--violet-t),var(--teal-t));border-radius:var(--r);
  padding:1.1rem;text-align:center}
.side-upgrade b{font-family:var(--fd);color:var(--ink)}
.main{flex:1;min-width:0}
.topbar{background:rgba(253,252,249,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  padding:.85rem 1.75rem;display:flex;align-items:center;gap:1rem;position:sticky;top:0;z-index:50}
.searchbox{flex:1;max-width:420px;position:relative}
.searchbox .form-control{padding-left:2.5rem;border-radius:999px;background:var(--surface)}
.searchbox .ico{position:absolute;left:.95rem;top:50%;transform:translateY(-50%);opacity:.5}
.streak{display:inline-flex;align-items:center;gap:.4rem;background:var(--gold-t);color:#8A6A00;
  font-weight:800;font-size:.85rem;border-radius:999px;padding:.4rem .9rem}
.topbar .avatar{width:2.4rem;height:2.4rem;font-size:.85rem}
.content{padding:1.75rem;max-width:1200px}
.page-h{display:flex;flex-wrap:wrap;align-items:end;justify-content:space-between;gap:1rem;margin-bottom:1.5rem}
.page-h h3{margin:0}
.page-h .sub{color:var(--muted);font-weight:600;font-size:.9rem}

/* Dashboard cards */
.dcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh);padding:1.5rem}
.dcard h6{font-size:1rem;margin-bottom:1rem}
.mini-stat{border-radius:var(--r);padding:1.15rem 1.25rem;height:100%}
.mini-stat .n{font-family:var(--fd);font-weight:800;font-size:1.7rem;color:var(--ink);line-height:1.15}
.mini-stat .l{font-size:.8rem;font-weight:700;color:var(--ink-soft)}
.mini-stat .d{font-size:.75rem;font-weight:700}
.mini-stat.m1{background:var(--blue-t)} .mini-stat.m2{background:var(--teal-t)}
.mini-stat.m3{background:var(--gold-t)} .mini-stat.m4{background:var(--violet-t)}
.up{color:var(--green)} .down{color:var(--coral)}

/* Continue learning banner */
.continue{border-radius:var(--r-lg);padding:1.75rem;color:#fff;position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--blue),var(--violet))}
.continue h5{color:#fff;margin-bottom:.25rem}
.continue .prog{background:rgba(255,255,255,.25);border-radius:999px;height:.55rem;overflow:hidden}
.continue .prog>div{background:var(--gold);height:100%;border-radius:999px}
.continue .spark{position:absolute;right:-1.2rem;top:-1.8rem;font-size:7rem;opacity:.14;font-family:var(--fd);font-weight:800}

/* Chapter progress cards */
.chapter{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);padding:1.15rem 1.25rem;
  box-shadow:var(--sh);height:100%;position:relative;overflow:hidden;transition:transform .15s,box-shadow .15s}
.chapter:hover{transform:translateY(-3px);box-shadow:var(--sh-lg)}
.chapter::before{content:"";position:absolute;top:0;left:0;bottom:0;width:5px}
.chapter.sub-m::before{background:var(--blue)} .chapter.sub-s::before{background:var(--teal)}
.chapter.sub-e::before{background:var(--gold)} .chapter.sub-so::before{background:var(--coral)}
.chapter .cn{font-family:var(--fm);font-size:.68rem;letter-spacing:.08em;color:var(--muted);font-weight:600}
.chapter .ct{font-family:var(--fd);font-weight:700;color:var(--ink);font-size:.98rem;margin:.15rem 0 .6rem}
.progress{background:var(--line);border-radius:999px;height:.5rem}
.progress-bar{border-radius:999px}

/* Doubt chat widget */
.chatw{display:flex;flex-direction:column;height:100%}
.chatw-body{flex:1;display:flex;flex-direction:column;gap:.7rem;overflow-y:auto;max-height:300px;padding-right:.25rem}
.chatw-input{display:flex;gap:.5rem;margin-top:1rem}
.chatw-input .form-control{border-radius:999px}

/* Timeline / exams */
.exam-row{display:flex;align-items:center;gap:1rem;padding:.8rem 0;border-bottom:1px dashed var(--line)}
.exam-row:last-child{border-bottom:none}
.exam-date{width:3.2rem;height:3.2rem;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;flex-shrink:0}
.exam-date b{font-family:var(--fd);font-size:1.05rem;line-height:1;color:var(--ink)}
.exam-date span{font-size:.62rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}
.ed1{background:var(--coral-t)} .ed1 span{color:var(--coral)}
.ed2{background:var(--blue-t)} .ed2 span{color:var(--blue)}
.ed3{background:var(--teal-t)} .ed3 span{color:var(--teal)}

/* Weak areas */
.weak{display:flex;align-items:center;gap:.8rem;padding:.65rem 0;border-bottom:1px dashed var(--line)}
.weak:last-child{border-bottom:none}
.weak .wl{font-weight:700;color:var(--ink);font-size:.9rem}
.weak .wp{font-size:.75rem;color:var(--muted);font-weight:600}
.weak .progress{flex:1}

/* Tables */
.table{--bs-table-striped-bg:#FBFAF6}
.table thead th{font-family:var(--fm);font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);border-bottom:2px solid var(--line)}

/* Reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .55s ease,transform .55s ease}
.rv.in{opacity:1;transform:none}

/* Responsive dashboard */
@media(max-width:991px){
  .sidebar{position:fixed;left:-280px;z-index:1050;transition:left .25s ease;box-shadow:var(--sh-lg)}
  .sidebar.open{left:0}
  .side-backdrop{display:none;position:fixed;inset:0;background:rgba(23,31,56,.4);z-index:1040}
  .side-backdrop.show{display:block}
}
@media(prefers-reduced-motion:reduce){
  .rv{opacity:1;transform:none;transition:none}
  .doodle,.mf1,.mf2,.ribbon-track{animation:none!important}
  .feature:hover,.chapter:hover{transform:none}
}