/* ===== Pharmatude — student app (green Holistic dashboard) ===== */
:root{
  --green:#1FA67A; --green-d:#14855F; --green-dd:#0E6B4C;
  --green-l:#E7F6F0; --green-tint:#F2FBF7;
  --ink:#0E2119; --body:#47574F; --muted:#7B8C84;
  --bg:#F4FAF7; --card:#FFFFFF; --line:#E6EFEA;
  --amber:#F59E0B; --red:#EF4444; --blue:#0EA5E9;
  --shadow-sm:0 4px 14px -8px rgba(16,60,45,.25);
  --shadow:0 18px 40px -18px rgba(16,60,45,.22);
  --r:14px; --r-lg:20px; --pill:999px; --sidebar:260px;
  --danger-wash:#FEF2F2;
  --card-2:#FBFDFC;      /* subtle inset surface (rows, tiles inside cards) */
  color-scheme:light;
}

/* ===== dark mode =====
   Only the tokens flip. `color:#fff` stays put on purpose: it is text sitting on
   the green brand colour, which does not change between themes. */
:root[data-theme="dark"]{
  --green:#2FBF8F; --green-d:#4FD3A6; --green-dd:#7FE3C2;
  --green-l:#16302A; --green-tint:#132A25;
  --ink:#E8F3EE; --body:#B6C7BF; --muted:#7E938B;
  --bg:#0C1512; --card:#121F1A; --line:#1E322B;
  --amber:#FBBF24; --red:#F87171; --blue:#38BDF8;
  --shadow-sm:0 4px 14px -8px rgba(0,0,0,.6);
  --shadow:0 18px 40px -18px rgba(0,0,0,.7);
  --danger-wash:#2A1616;
  --card-2:#0F1B17;
  color-scheme:dark;
}
:root[data-theme="dark"] img.tcover,
:root[data-theme="dark"] .subj-cover img,
:root[data-theme="dark"] .q-cover img,
:root[data-theme="dark"] .c-cover img{filter:brightness(.88) saturate(.95)}
/* the cover art is already dark-on-dark; soften its overlay so titles stay legible */
:root[data-theme="dark"] .thumb.has-cover::after,
:root[data-theme="dark"] .subj.has-cover .subj-cover::after{opacity:.65}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--body);
  font-family:'Poppins',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.02em}
a{text-decoration:none;color:inherit}
p{margin:0}
.muted{color:var(--muted)}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.95rem;padding:11px 20px;
  border-radius:var(--pill);border:1.5px solid transparent;cursor:pointer;transition:.2s;font-family:inherit}
.btn-primary{background:var(--green);color:#fff;box-shadow:0 10px 22px -10px rgba(31,166,122,.6)}
.btn-primary:hover{background:var(--green-d);transform:translateY(-1px)}
.btn-ghost{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--green);color:var(--green-d)}
.btn-block{width:100%;justify-content:center}
.btn-sm{padding:8px 16px;font-size:.88rem}

/* ===== auth ===== */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-aside{background:linear-gradient(150deg,var(--green),var(--green-dd));color:#fff;padding:56px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.auth-aside .blob{position:absolute;border-radius:50%;background:rgba(255,255,255,.08)}
.auth-aside .blob.a{width:320px;height:320px;top:-80px;right:-60px}
.auth-aside .blob.b{width:220px;height:220px;bottom:-40px;left:-40px}
.auth-aside .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.4rem;position:relative;z-index:2}
.auth-aside .mark{width:38px;height:38px;border-radius:12px;background:rgba(255,255,255,.16);display:grid;place-items:center}
.auth-aside h2{color:#fff;font-size:2rem;line-height:1.2;position:relative;z-index:2;max-width:420px}
.auth-aside .pts{position:relative;z-index:2;display:grid;gap:14px;margin-top:22px}
.auth-aside .pts div{display:flex;gap:12px;align-items:center;color:rgba(255,255,255,.92)}
.auth-aside .pts i{width:26px;height:26px;border-radius:8px;background:rgba(255,255,255,.18);display:grid;place-items:center;flex:0 0 auto}
.auth-main{display:grid;place-items:center;padding:40px}
.auth-card{width:100%;max-width:400px}
.auth-card h1{font-size:1.7rem;margin-bottom:6px}
.auth-card .sub{color:var(--muted);margin-bottom:28px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;color:var(--ink);font-size:.9rem;margin-bottom:6px}
.field input,.field select{width:100%;padding:12px 14px;border:1.5px solid var(--line);border-radius:12px;font-family:inherit;font-size:.95rem;background:var(--card);color:var(--ink);transition:.15s}
.field input:focus,.field select:focus{outline:none;border-color:var(--green);box-shadow:0 0 0 4px var(--green-l)}
.err{color:var(--red);font-size:.82rem;margin-top:5px}
.auth-alt{text-align:center;margin-top:22px;color:var(--muted);font-size:.92rem}
.auth-alt a{color:var(--green-d);font-weight:600}

/* ===== app shell ===== */
.shell{display:grid;grid-template-columns:var(--sidebar) 1fr;min-height:100vh}
.sidebar{background:var(--card);border-right:1px solid var(--line);padding:24px 18px;display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.sidebar .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.25rem;color:var(--ink);padding:0 8px 22px}
.sidebar .mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#25B183,#128A63);color:#fff;display:grid;place-items:center}
.nav-group{font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);font-weight:600;padding:16px 12px 8px}
.nav-item{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:12px;color:var(--body);font-weight:500;margin-bottom:2px;transition:.15s}
.nav-item:hover{background:var(--green-tint);color:var(--green-d)}
.nav-item.active{background:var(--green-l);color:var(--green-d);font-weight:600}
.nav-item svg{flex:0 0 auto}
.sidebar .foot{margin-top:auto;border-top:1px solid var(--line);padding-top:14px}
.user-chip{display:flex;align-items:center;gap:10px;padding:8px}
.user-chip .av{width:38px;height:38px;border-radius:50%;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:700;flex:0 0 auto}
.user-chip b{color:var(--ink);font-size:.9rem;display:block;line-height:1.2}
.user-chip small{color:var(--muted)}
.logout{display:flex;align-items:center;gap:10px;width:100%;background:none;border:0;color:var(--red);font-weight:600;padding:10px 12px;border-radius:10px;cursor:pointer;font-family:inherit;font-size:.9rem;margin-top:6px}
.logout:hover{background:var(--danger-wash)}

/* theme toggle */
.theme-toggle{display:flex;align-items:center;gap:10px;width:100%;background:none;border:0;color:var(--body);
  font-weight:500;padding:10px 12px;border-radius:10px;cursor:pointer;font-family:inherit;font-size:.9rem;
  transition:.15s;margin-bottom:4px}
.theme-toggle:hover{background:var(--green-tint);color:var(--green-d)}
.theme-toggle .tt-ic{display:grid;place-items:center;flex:0 0 auto;width:18px;height:18px}
.tt-moon{display:none}
:root[data-theme="dark"] .tt-sun{display:none}
:root[data-theme="dark"] .tt-moon{display:grid}
.tt-label{flex:1;text-align:left}

/* main */
.main{padding:28px 34px;min-width:0}  /* grid item: min-width:auto would let the
   top bar's content push the column wider than its track and overflow the page */
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}
.topbar h1{font-size:1.5rem}
.topbar .sub{color:var(--muted);font-size:.92rem}
.search{background:var(--card);border:1px solid var(--line);border-radius:var(--pill);padding:9px 16px;display:flex;align-items:center;gap:10px;color:var(--muted);min-width:220px}
.search input{border:0;outline:0;font-family:inherit;font-size:.9rem;width:100%;background:none}

/* stat tiles */
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:22px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-sm)}
.stat .top{display:flex;align-items:center;justify-content:space-between}
.stat .ic{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--green-l);color:var(--green-d)}
.stat .chip{font-size:.74rem;font-weight:700;color:var(--green-d);background:var(--green-l);padding:3px 9px;border-radius:var(--pill)}
.stat .v{font-size:1.9rem;font-weight:800;color:var(--ink);margin-top:14px;letter-spacing:-.02em}
.stat .k{color:var(--muted);font-size:.86rem}

/* panels */
.cols{display:grid;grid-template-columns:1.6fr 1fr;gap:18px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-sm)}
.panel h3{font-size:1.05rem;margin-bottom:4px}
.panel .ph-sub{color:var(--muted);font-size:.85rem;margin-bottom:18px}
.chart{display:flex;align-items:flex-end;gap:12px;height:170px;padding-top:10px}
.chart .col{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px}
.chart .bar{width:100%;max-width:34px;border-radius:8px 8px 0 0;background:linear-gradient(var(--green),#7FD3B4);min-height:6px}
.chart .lbl{font-size:.72rem;color:var(--muted)}

/* subject cards */
.subjects{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.subj{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--shadow-sm);transition:.2s;display:block}
.subj:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#D6E8E0}
.subj .ic{width:44px;height:44px;border-radius:12px;background:var(--green-l);color:var(--green-d);display:grid;place-items:center;margin-bottom:14px}
/* AI-generated subject cover: image banner on top, text below */
.subj.has-cover{padding:0;overflow:hidden;display:flex;flex-direction:column}
.subj.has-cover .subj-cover{position:relative;display:block;height:104px;background:#0f3d2e;overflow:hidden}
.subj.has-cover .subj-cover img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .35s ease}
.subj.has-cover:hover .subj-cover img{transform:scale(1.05)}
.subj.has-cover .subj-cover::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,46,0) 50%,rgba(15,61,46,.45) 100%)}
.subj.has-cover .subj-body{display:block;padding:16px 18px 18px}
.subj h4{font-size:1rem;margin-bottom:4px}
.subj .meta{color:var(--muted);font-size:.82rem}
.subj .bar{height:6px;background:var(--green-l);border-radius:6px;margin-top:14px;overflow:hidden}
.subj .bar i{display:block;height:100%;background:var(--green);border-radius:6px}

/* section title */
.sec-title{display:flex;align-items:center;justify-content:space-between;margin:26px 0 16px}
.sec-title h2{font-size:1.15rem}
.pill-tab{display:inline-flex;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:var(--pill);padding:5px}
.pill-tab a{padding:7px 16px;border-radius:var(--pill);font-size:.86rem;font-weight:600;color:var(--muted)}
.pill-tab a.active{background:var(--green);color:#fff}

/* list rows */
.rows{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.row{display:flex;align-items:center;gap:14px;padding:15px 20px;border-bottom:1px solid var(--line)}
.row:last-child{border-bottom:0}
.row .ic{width:38px;height:38px;border-radius:10px;background:var(--green-l);color:var(--green-d);display:grid;place-items:center;flex:0 0 auto}
.row .t{font-weight:600;color:var(--ink);font-size:.94rem}
.row .s{color:var(--muted);font-size:.82rem}
.row .right{margin-left:auto;display:flex;align-items:center;gap:10px}
.tag{font-size:.72rem;font-weight:700;padding:4px 10px;border-radius:var(--pill)}
.tag.g{background:var(--green-l);color:var(--green-d)}
.tag.a{background:#FEF3E2;color:#B45309}

/* ===== quiz ===== */
.quiz{max-width:760px;margin:0 auto}
.quiz-head{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 24px;margin-bottom:18px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-sm)}
.progress{height:8px;background:var(--green-l);border-radius:6px;overflow:hidden;flex:1;margin:0 20px}
.progress i{display:block;height:100%;background:var(--green);border-radius:6px;transition:.3s}
.qcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;margin-bottom:18px;box-shadow:var(--shadow-sm)}
.qcard .qn{font-size:.8rem;font-weight:700;color:var(--green-d);text-transform:uppercase;letter-spacing:.05em}
.qcard .stem{font-size:1.12rem;font-weight:600;color:var(--ink);margin:8px 0 20px}
.opt{display:flex;align-items:center;gap:14px;padding:14px 18px;border:1.6px solid var(--line);border-radius:12px;margin-bottom:11px;cursor:pointer;transition:.15s}
.opt:hover{border-color:var(--green);background:var(--green-tint)}
.opt input{width:20px;height:20px;accent-color:var(--green);flex:0 0 auto}
.opt .letter{width:28px;height:28px;border-radius:8px;background:var(--bg);color:var(--body);font-weight:700;display:grid;place-items:center;font-size:.85rem;flex:0 0 auto}
.opt.correct{border-color:var(--green);background:var(--green-l)}
.opt.wrong{border-color:var(--red);background:#FEF2F2}
.opt .mark{margin-left:auto;font-weight:700}
.explain{background:var(--green-tint);border:1px solid var(--green-l);border-radius:12px;padding:14px 18px;margin-top:10px;font-size:.9rem}
.explain b{color:var(--green-d)}

/* result */
.result{text-align:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px;box-shadow:var(--shadow-sm);margin-bottom:22px}
.score-ring{width:150px;height:150px;border-radius:50%;margin:0 auto 18px;display:grid;place-items:center;
  background:conic-gradient(var(--green) calc(var(--p)*1%),var(--green-l) 0)}
.score-ring .in{width:118px;height:118px;border-radius:50%;background:var(--card);display:grid;place-items:center}
.score-ring b{font-size:2.2rem;color:var(--ink)}
.score-ring small{color:var(--muted);font-size:.8rem}

/* empty state */
.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.empty .ic{width:64px;height:64px;border-radius:18px;background:var(--green-l);color:var(--green-d);display:grid;place-items:center;margin:0 auto 16px}
.empty h3{color:var(--ink);margin-bottom:6px}

/* breadcrumb */
.crumb{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.88rem;margin-bottom:16px}
.crumb a:hover{color:var(--green-d)}

.flash{background:var(--green-l);border:1px solid #BfE7D6;color:var(--green-dd);padding:12px 18px;border-radius:12px;margin-bottom:18px;font-size:.9rem;font-weight:500}

@media(max-width:900px){
  .shell{grid-template-columns:1fr}
  .sidebar{display:none}
  .tiles{grid-template-columns:1fr 1fr}
  .cols{grid-template-columns:1fr}
  .auth-wrap{grid-template-columns:1fr}
  .auth-aside{display:none}
}
@media(max-width:560px){ .tiles{grid-template-columns:1fr} .main{padding:20px} }

/* ===== mobile navigation (student app) ===== */
.mobile-topbar{display:none}
.sidebar-overlay{display:none}
@media(max-width:900px){
  .sidebar{display:flex !important;position:fixed;top:0;left:0;bottom:0;width:272px;z-index:100;
    transform:translateX(-100%);transition:transform .28s ease;box-shadow:0 20px 60px rgba(14,33,25,.28)}
  .sidebar.open{transform:translateX(0)}
  .mobile-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:11px 16px;
    background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
  .mobile-topbar .mbrand{display:flex;align-items:center;gap:9px;font-weight:800;font-size:1.1rem;color:var(--ink)}
  .mobile-topbar .mbrand .mk{width:30px;height:30px;border-radius:9px;overflow:hidden;display:block}
  .mobile-burger{background:none;border:0;color:var(--ink);cursor:pointer;padding:6px;display:grid;place-items:center}
  .sidebar-overlay{display:block;position:fixed;inset:0;background:rgba(14,33,25,.45);z-index:90;
    opacity:0;visibility:hidden;transition:.28s}
  .sidebar-overlay.open{opacity:1;visibility:visible}
  .topbar{flex-wrap:wrap;gap:12px}
  .topbar .search{min-width:0;width:100%}
}

@media(max-width:900px){
  .sidebar.open{transform:translateX(0) !important}
}

/* ===== matiere redesign — chapter/lesson cards (e-Qe Pro style) ===== */
.subject-hero{background:linear-gradient(135deg,var(--green),var(--green-dd));color:#fff;border-radius:var(--r-lg);
  padding:26px 28px;margin-bottom:24px;position:relative;overflow:hidden}
.subject-hero::after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  background:rgba(255,255,255,.08);top:-70px;right:-40px}
.subject-hero h1{color:#fff;font-size:1.6rem;position:relative;z-index:1}
.subject-hero .meta{color:rgba(255,255,255,.88);font-size:.9rem;margin-top:6px;position:relative;z-index:1}
.subject-hero .cta{margin-top:18px;display:flex;gap:14px;flex-wrap:wrap;align-items:center;position:relative;z-index:1}
.subject-hero .btn-white{background:var(--card);color:var(--green-dd)}
.subject-hero .btn-white:hover{background:#f0fbf6;transform:translateY(-1px)}
.subject-hero .prog-wrap{flex:1;min-width:160px}
.subject-hero .prog-line{height:7px;background:rgba(255,255,255,.25);border-radius:5px;overflow:hidden}
.subject-hero .prog-line i{display:block;height:100%;background:var(--card);border-radius:5px}
.subject-hero .prog-txt{font-size:.8rem;color:rgba(255,255,255,.9);margin-top:5px}

.chapter-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(224px,1fr));gap:16px}
.chapter{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow-sm);transition:.2s;display:flex;flex-direction:column}
.chapter:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#D6E8E0}
.chapter .thumb{height:104px;display:grid;place-items:center;position:relative;
  background:linear-gradient(135deg,var(--green-l),#DCEFFB)}
.chapter .thumb.v1{background:linear-gradient(135deg,#E7F6F0,#CFEBFF)}
.chapter .thumb.v2{background:linear-gradient(135deg,#E9F7EE,#FDECD9)}
.chapter .thumb.v3{background:linear-gradient(135deg,#EEE9FB,#E7F6F0)}
.chapter .thumb .tbadge{position:absolute;top:10px;left:10px;background:rgba(255,255,255,.92);color:var(--green-d);
  font-size:.66rem;font-weight:700;padding:3px 9px;border-radius:var(--pill);letter-spacing:.03em}
.chapter .thumb .tico{width:46px;height:46px;color:var(--green-d);opacity:.55}
/* AI-generated cover art */
.chapter .thumb.has-cover{height:132px;background:#0f3d2e;overflow:hidden}
.chapter .thumb .tcover{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .35s ease}
.chapter:hover .thumb .tcover{transform:scale(1.05)}
.chapter .thumb.has-cover::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,46,0) 45%,rgba(15,61,46,.55) 100%);pointer-events:none}
.chapter .thumb.has-cover .tbadge{z-index:2;backdrop-filter:blur(4px)}
.chapter .body{padding:14px 16px 16px;flex:1;display:flex;flex-direction:column}
.chapter .body h4{font-size:.94rem;line-height:1.3;margin-bottom:5px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.chapter .body .sub{color:var(--muted);font-size:.78rem;margin-bottom:12px}
.chapter .body .act{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:8px}
.chapter .body .act .open{color:var(--green-d);font-weight:600;font-size:.84rem;display:inline-flex;align-items:center;gap:5px}
.chapter .body .act .ftype{font-size:.66rem;font-weight:700;color:var(--muted);background:var(--bg);padding:3px 8px;border-radius:var(--pill)}

.qcm-feature{background:linear-gradient(135deg,#fff,var(--green-tint));border:1.5px solid var(--green-l);
  border-radius:var(--r-lg);padding:22px 24px;display:flex;align-items:center;gap:20px;margin-bottom:8px;box-shadow:var(--shadow-sm)}
.qcm-feature .big-ic{width:60px;height:60px;border-radius:16px;background:var(--green);color:#fff;display:grid;place-items:center;flex:0 0 auto}
.qcm-feature .qf-body{flex:1}
.qcm-feature .qf-body h3{font-size:1.15rem}
.qcm-feature .qf-body p{color:var(--muted);font-size:.88rem;margin-top:2px}
@media(max-width:560px){ .qcm-feature{flex-direction:column;align-items:flex-start;text-align:left} }

/* ===== course text reader ===== */
.reader{max-width:820px;margin:0 auto}
.reader-head{margin:6px 0 22px}
.reader-type{display:inline-block;font-size:.7rem;font-weight:700;letter-spacing:.08em;color:#0E6B4C;
  background:#E7F6F0;padding:5px 12px;border-radius:999px;margin-bottom:12px}
.reader-head h1{font-size:clamp(1.5rem,3.4vw,2rem);font-weight:800;color:#0E2119;line-height:1.2;margin:0}
.reader-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:#7B8C84;font-size:.9rem;margin-top:10px}
.reader-body{white-space:pre-wrap;word-wrap:break-word;overflow-wrap:anywhere;
  font-size:1.02rem;line-height:1.9;color:#31413A;
  background:var(--card);border:1px solid #E6EFEA;border-radius:18px;padding:30px 32px;
  box-shadow:0 10px 30px -20px rgba(16,60,45,.25)}
.reader-empty{text-align:center;background:var(--card);border:1px dashed #CFE3DA;border-radius:18px;padding:48px 26px}
.reader-empty .ic{width:60px;height:60px;border-radius:16px;background:#E7F6F0;color:#14855F;
  display:grid;place-items:center;margin:0 auto 16px}
.reader-empty h3{color:#0E2119;font-size:1.15rem;margin:0 0 6px}
.reader-empty p{color:#7B8C84;max-width:420px;margin:0 auto;font-size:.95rem}
.reader-foot{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-top:26px}
@media(max-width:640px){
  .reader-body{padding:22px 18px;font-size:.98rem;line-height:1.8}
  .reader-foot{flex-direction:column;align-items:stretch}
  .reader-foot .btn{justify-content:center}
}

/* ===== Compagnon IA ===== */
.ia-hero{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap;margin-bottom:8px}
.ia-hero h1{font-size:clamp(1.5rem,3.4vw,2rem);font-weight:800;color:#0E2119;margin:10px 0 6px}
.ia-hero .muted{color:#7B8C84;max-width:560px;font-size:.98rem}
.ia-wallet{background:linear-gradient(150deg,#14855F,#0E6B4C);color:#fff;border-radius:18px;padding:16px 22px;text-align:center;box-shadow:0 14px 30px -14px rgba(20,133,95,.6);min-width:120px}
.ia-wallet .k{display:block;font-size:.72rem;opacity:.85;text-transform:uppercase;letter-spacing:.06em}
.ia-wallet .v{display:block;font-size:2rem;font-weight:800;line-height:1.1}
.ia-wallet .u{font-size:.72rem;opacity:.85}
.ia-card{background:var(--card);border:1px solid #E6EFEA;border-radius:20px;padding:24px;margin-top:18px;box-shadow:0 12px 30px -20px rgba(16,60,45,.25)}
.ia-row{margin-bottom:16px}
.ia-row label{display:block;font-weight:600;color:#0E2119;font-size:.92rem;margin-bottom:8px}
.ia-row select{width:100%;border:1.5px solid #E6EFEA;border-radius:12px;padding:12px 14px;font-size:.98rem;font-family:inherit;color:#31413A;background:var(--card);cursor:pointer}
.ia-row select:focus{outline:none;border-color:#1FA67A}
.ia-foot{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-top:6px}
.ia-cost{color:#47574F;font-size:.95rem}
.ia-cost b{color:#0E6B4C}
.flash-err{background:#FEECEC;border:1px solid #F7C9C9;color:#A12A2A;border-radius:14px;padding:14px 18px;margin:14px 0;font-size:.94rem}
@media(max-width:640px){ .ia-wallet{align-self:stretch;width:100%} .ia-foot{flex-direction:column;align-items:stretch} .ia-foot .btn{justify-content:center} }

/* AI CTA variant when a subject has no official QCM */
.qcm-feature.qcm-ai{background:linear-gradient(135deg,#6D5AE6,#4B3FB0)}
.qcm-feature.qcm-ai .btn-primary{background:var(--card);color:#4B3FB0}
.qcm-feature.qcm-ai .btn-primary:hover{background:#F1EEFF}

/* ===== shared form inputs ===== */
.ia-row input[type=text],.ia-row input[type=email],.ia-row input[type=password],.ia-row textarea{
  width:100%;border:1.5px solid #E6EFEA;border-radius:12px;padding:12px 14px;font-size:.98rem;
  font-family:inherit;color:#31413A;background:var(--card)}
.ia-row input:focus,.ia-row textarea:focus{outline:none;border-color:#1FA67A}
.ia-row textarea{resize:vertical;line-height:1.6}
.ia-row label .opt{color:#9AACA4;font-weight:500;font-size:.82rem}

/* ===== Classement ===== */
.lb-head{display:flex;justify-content:space-between;align-items:flex-start;gap:18px;flex-wrap:wrap}
.lb-head h1{font-size:clamp(1.5rem,3.4vw,2rem);font-weight:800;color:#0E2119;margin:0 0 6px}
.lb-head .muted{color:#7B8C84;font-size:.96rem}
.lb-me{background:linear-gradient(150deg,#14855F,#0E6B4C);color:#fff;border-radius:16px;padding:14px 20px;text-align:center;min-width:120px}
.lb-me .k{display:block;font-size:.7rem;opacity:.85;text-transform:uppercase;letter-spacing:.06em}
.lb-me .v{display:block;font-size:1.8rem;font-weight:800;line-height:1.1}
.lb-me .u{font-size:.72rem;opacity:.85}
.lb-table{margin-top:20px;background:var(--card);border:1px solid #E6EFEA;border-radius:18px;overflow:hidden;box-shadow:0 10px 30px -22px rgba(16,60,45,.3)}
.lb-row{display:grid;grid-template-columns:60px 1fr 130px 100px;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid #F0F6F3}
.lb-row:last-child{border-bottom:0}
.lb-th{background:#F7FBF9;font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;color:#7B8C84;font-weight:700}
.lb-row.is-me{background:#E7F6F0}
.lb-row .c-rank{font-weight:800;color:#0E2119}
.lb-row .c-name{display:flex;align-items:center;gap:10px;color:#0E2119;font-weight:600;min-width:0}
.lb-row .c-name .av{width:30px;height:30px;border-radius:9px;background:#1FA67A;color:#fff;display:grid;place-items:center;font-size:.8rem;font-weight:700;flex:0 0 auto}
.lb-row .c-num{text-align:right;color:#47574F}
.lb-row .c-num b{color:#0E6B4C}
.medal{font-size:1.15rem}
.you{background:#1FA67A;color:#fff;font-size:.64rem;padding:2px 7px;border-radius:999px;text-transform:uppercase;letter-spacing:.05em}
@media(max-width:640px){
  .lb-row{grid-template-columns:38px 1fr 62px;gap:8px;padding:12px 12px}
  .lb-row .c-num:last-child{display:none}
  .lb-me{align-self:stretch;width:100%}
}

/* ===== Profil ===== */
.pf-head{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.pf-av{width:64px;height:64px;border-radius:20px;background:linear-gradient(150deg,#25B183,#128A63);color:#fff;
  display:grid;place-items:center;font-size:1.6rem;font-weight:800;flex:0 0 auto}
.pf-id h1{font-size:clamp(1.35rem,3vw,1.8rem);font-weight:800;color:#0E2119;margin:0}
.pf-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:6px;color:#7B8C84;font-size:.9rem}
.pf-badge{background:#F0F6F3;color:#47574F;border-radius:999px;padding:3px 10px;font-size:.75rem;font-weight:600}
.pf-badge.ok{background:#E7F6F0;color:#0E6B4C}
.pf-badge.warn{background:#FFF7ED;color:#8A5A17}
.pf-verify{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  background:#FFF7ED;border:1px solid #FDE7C7;border-radius:14px;padding:14px 18px;margin:14px 0}
.pf-verify b{display:block;color:#8A5A17}
.pf-verify span{color:#A5762E;font-size:.88rem}
.pf-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:18px}
.pf-stat{background:var(--card);border:1px solid #E6EFEA;border-radius:16px;padding:16px;text-align:center}
.pf-stat .v{display:block;font-size:1.5rem;font-weight:800;color:#0E2119}
.pf-stat .k{font-size:.75rem;color:#7B8C84}
.pf-card{background:var(--card);border:1px solid #E6EFEA;border-radius:18px;padding:22px;margin-top:8px;
  box-shadow:0 10px 30px -22px rgba(16,60,45,.25)}
.pf-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:640px){ .pf-stats{grid-template-columns:1fr 1fr} .pf-grid{grid-template-columns:1fr} .pf-verify{flex-direction:column;align-items:stretch} }

/* sidebar profile chip + verify nudge */
.user-chip{text-decoration:none;color:inherit;border-radius:12px;transition:background .15s}
.user-chip:hover,.user-chip.active{background:rgba(255,255,255,.10)}
.verify-nudge{display:block;margin-top:8px;text-align:center;font-size:.76rem;font-weight:600;
  background:rgba(245,158,11,.16);color:#FCD9A1;border-radius:10px;padding:7px 8px;text-decoration:none}
.verify-nudge:hover{background:rgba(245,158,11,.26)}

/* ===== structured course reader: slides & pages ===== */
.slides{display:grid;gap:18px}
.slide{background:var(--card);border:1px solid #E6EFEA;border-radius:16px;padding:22px 24px;
  box-shadow:0 10px 30px -22px rgba(16,60,45,.28)}
.slide-no{font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:#1FA67A;margin-bottom:10px}
.slide-title{font-size:1.2rem;font-weight:800;color:#0E2119;line-height:1.25;margin:0 0 12px}
.slide-lines{margin:0;padding-left:20px;display:grid;gap:7px}
.slide-lines li{color:#31413A;line-height:1.6;font-size:1rem}
.slide-imgs,.page-imgs{display:flex;flex-wrap:wrap;gap:12px;margin-top:14px}
.slide-imgs img,.page-imgs img{max-width:100%;border-radius:12px;border:1px solid #EAF1EE;cursor:zoom-in;
  background:#F7FBF9;max-height:440px;object-fit:contain}
.slide-imgs img{max-width:calc(50% - 6px)}
.slide-empty{color:#9AACA4;font-style:italic;font-size:.9rem;margin:0}
.pages{display:grid;gap:16px}
.pdfpage{background:var(--card);border:1px solid #E6EFEA;border-radius:16px;padding:22px 24px;
  box-shadow:0 10px 30px -22px rgba(16,60,45,.28)}
.pdfpage .reader-body{border:0;box-shadow:none;padding:0;background:none;border-radius:0}
.pdfpage .page-imgs{margin-top:14px}
.lightbox{position:fixed;inset:0;background:rgba(4,15,10,.86);display:none;place-items:center;z-index:200;padding:24px;cursor:zoom-out}
.lightbox.on{display:grid}
.lightbox img{max-width:96vw;max-height:92vh;border-radius:10px;box-shadow:0 30px 80px rgba(0,0,0,.5)}
@media(max-width:640px){
  .slide,.pdfpage{padding:18px 16px}
  .slide-imgs img{max-width:100%}
  .slide-imgs img,.page-imgs img{max-height:320px}
}

/* ===== topbar status chips (dashboard) ===== */
.tb-chips{display:flex;gap:8px;flex-wrap:wrap}
.tb-chip{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:var(--pill);
  background:var(--card);border:1.5px solid var(--line);font-size:.82rem;font-weight:600;color:var(--body);transition:.15s}
.tb-chip:hover{border-color:var(--green);color:var(--green-d)}
.tb-chip.ok{background:var(--green-l);border-color:#BfE7D6;color:var(--green-dd)}
.tb-chip.warn{background:#FFF7ED;border-color:#FDE7C7;color:#8A5A17}

/* ===== "continue" resume card (dashboard) ===== */
.resume-card{display:flex;align-items:center;gap:14px;background:linear-gradient(135deg,var(--green),var(--green-dd));
  color:#fff;border-radius:14px;padding:16px 18px;margin-bottom:10px;transition:.2s;box-shadow:0 12px 26px -14px rgba(20,133,95,.55)}
.resume-card:hover{transform:translateY(-2px)}
.resume-card .rc-body{flex:1;min-width:0}
.resume-card .rc-k{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;opacity:.85;font-weight:600}
.resume-card .rc-t{font-weight:700;font-size:.98rem;line-height:1.3;margin-top:3px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.resume-card .rc-s{font-size:.8rem;opacity:.88;margin-top:2px}
.resume-card .rc-btn{display:inline-flex;align-items:center;gap:6px;background:var(--card);color:var(--green-dd);
  font-weight:700;font-size:.82rem;padding:8px 14px;border-radius:var(--pill);flex:0 0 auto}

/* ===== Mon abonnement ===== */
.sub-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:18px}
.sub-hero{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-sm)}
.sub-hero-top{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.sub-plan-k{font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);font-weight:700}
.sub-plan-v{font-size:1.5rem;font-weight:800;color:var(--ink);letter-spacing:-.02em;margin-top:2px}
.sub-plan-y{color:var(--muted);font-size:.86rem;margin-top:2px}
.sub-dates{display:flex;flex-wrap:wrap;gap:10px;align-items:center;color:var(--body);font-size:.9rem;margin-top:14px}
.sub-dates b{color:var(--ink)}
.sub-amt{margin-left:auto;background:var(--green-l);color:var(--green-dd);font-weight:700;font-size:.82rem;padding:4px 12px;border-radius:var(--pill)}
.sub-remaining{margin-top:18px}
.sub-rem-txt{display:flex;justify-content:space-between;font-size:.84rem;font-weight:600;color:var(--ink);margin-bottom:7px}
.sub-bar{height:8px;background:var(--green-l);border-radius:6px;overflow:hidden}
.sub-bar i{display:block;height:100%;background:linear-gradient(90deg,var(--green),var(--green-d));border-radius:6px}
.sub-wallet{display:flex;flex-direction:column;justify-content:center;gap:2px}
.sub-wallet-link{display:inline-block;margin-top:10px;color:#fff;font-size:.8rem;font-weight:600;opacity:.92;text-decoration:underline;text-underline-offset:3px}
.sub-wallet-link:hover{opacity:1}
.tag.x{background:#F0F2F1;color:#6B7A72}

/* upsell */
.sub-upsell{text-align:center;background:var(--card);border:1px dashed #CFE3DA;border-radius:var(--r-lg);padding:34px 22px;margin-bottom:20px}
.sub-upsell .ic{width:60px;height:60px;border-radius:16px;background:var(--green-l);color:var(--green-d);display:grid;place-items:center;margin:0 auto 14px}
.sub-upsell h3{font-size:1.15rem;margin-bottom:6px}
.sub-upsell p{color:var(--muted);max-width:460px;margin:0 auto;font-size:.92rem}
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.plan-card{background:var(--card);border:1.5px solid var(--line);border-radius:var(--r-lg);padding:22px;position:relative;box-shadow:var(--shadow-sm)}
.plan-card.feat{border-color:var(--green)}
.plan-tag{position:absolute;top:-11px;left:20px;background:var(--green);color:#fff;font-size:.64rem;font-weight:800;
  letter-spacing:.06em;padding:4px 12px;border-radius:var(--pill)}
.plan-card h3{font-size:1.05rem}
.plan-desc{color:var(--muted);font-size:.84rem;margin-top:2px}
.plan-amt{font-size:1.7rem;font-weight:800;color:var(--ink);margin:12px 0 14px;letter-spacing:-.02em}
.plan-amt small{font-size:.78rem;font-weight:600;color:var(--muted)}
.plan-card ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.plan-card li{display:flex;align-items:center;gap:9px;font-size:.88rem;color:var(--body)}
.plan-card li svg{color:var(--green);flex:0 0 auto}
.sub-cta{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  background:linear-gradient(135deg,#fff,var(--green-tint));border:1.5px solid var(--green-l);
  border-radius:var(--r-lg);padding:20px 24px;margin-top:18px;box-shadow:var(--shadow-sm)}
.sub-cta b{display:block;color:var(--ink)}
.sub-cta span{color:var(--muted);font-size:.88rem}
.sub-cta-btns{display:flex;gap:10px;flex-wrap:wrap}

/* history table */
.sub-table-wrap{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow-x:auto;box-shadow:var(--shadow-sm)}
.sub-table{width:100%;border-collapse:collapse;min-width:520px}
.sub-table th{background:#F7FBF9;text-align:left;font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;
  color:var(--muted);font-weight:700;padding:12px 18px;border-bottom:1px solid var(--line)}
.sub-table td{padding:14px 18px;border-bottom:1px solid #F0F6F3;font-size:.9rem;color:var(--body);white-space:nowrap}
.sub-table tr:last-child td{border-bottom:0}
.sub-table td b{color:var(--ink)}
.sub-td-sub{display:block;color:var(--muted);font-size:.76rem;white-space:nowrap}
.sub-help{color:var(--muted);font-size:.86rem;margin-top:18px}
.sub-help a{color:var(--green-d);font-weight:600}

@media(max-width:900px){
  .sub-grid{grid-template-columns:1fr}
}
@media(max-width:560px){
  .tb-chips{width:100%}
  .tb-chip{flex:1;justify-content:center}
  .resume-card{flex-direction:column;align-items:flex-start}
  .sub-hero{padding:18px}
  .sub-dates .sub-amt{margin-left:0}
  .sub-cta{flex-direction:column;align-items:stretch;text-align:left}
  .sub-cta-btns .btn{flex:1;justify-content:center}
  .plan-grid{grid-template-columns:1fr}
}

/* avatar image in the sidebar chip */
.user-chip .av.av-img{padding:0;overflow:hidden;background:var(--green-l)}
.user-chip .av.av-img img{width:100%;height:100%;object-fit:cover;display:block;border-radius:50%}

/* ===== top bar (student identity moved out of the sidebar foot) ===== */
.app-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.app-top-l{min-width:0;flex:1}
.app-top-r{display:flex;align-items:center;gap:10px;flex:none}
.top-icon{position:relative;display:grid;place-items:center;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--line);background:var(--card);color:var(--body);cursor:pointer;transition:.15s;flex:none}
.top-icon:hover{border-color:var(--green);color:var(--green-d)}
.top-icon.danger:hover{border-color:var(--red);color:var(--red)}
.top-icon.warn{color:var(--amber)}
.top-icon .dot{position:absolute;top:7px;right:7px;width:7px;height:7px;border-radius:50%;background:var(--red);
  border:2px solid var(--card)}
.top-user{display:flex;align-items:center;gap:8px}
.top-me{display:flex;align-items:center;gap:10px;padding:5px 5px 5px 12px;border-radius:var(--pill);
  border:1px solid var(--line);background:var(--card);transition:.15s}
.top-me:hover,.top-me.active{border-color:var(--green);box-shadow:0 4px 12px rgba(34,160,107,.10)}
.top-meta{display:flex;flex-direction:column;line-height:1.15;text-align:right;min-width:0}
.top-meta b{font-size:.82rem;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}
.top-meta small{font-size:.7rem;color:var(--muted)}
.top-me .av{width:34px;height:34px;border-radius:50%;background:var(--green);color:#fff;display:grid;
  place-items:center;font-weight:700;flex:none;font-size:.85rem}
.top-me .av.av-img{padding:0;overflow:hidden;background:var(--green-l)}
.top-me .av.av-img img{width:100%;height:100%;object-fit:cover;display:block;border-radius:50%}
@media(max-width:900px){
  .app-top{margin-bottom:16px}
  .top-meta{display:none}          /* avatar only on small screens */
  .top-me{padding:4px}
}