/* ===========================================================
   Codelingo — design tokens + components
   Ported from the original static prototype, extended with
   landing, auth, dashboard and admin styles.
   =========================================================== */
:root{--bg:#F4F5F7;--bg2:#EDEEF1;--surface:#FFFFFF;--ink:#1B1D28;--ink2:#5B5E6D;--ink3:#9295A3;--accent:#6C5CE7;--accent-h:#5A4BD6;--accent-s:#EEEAFD;--green:#27AE60;--green-s:#E9F7EF;--blue:#3498DB;--blue-s:#EBF5FB;--amber:#F39C12;--amber-s:#FEF5E4;--red:#E74C3C;--red-s:#FDEDEC;--teal:#00B894;--teal-s:#E0F8F3;--border:#E3E5EB;--border2:#D4D6DE;--fb:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--fd:'DM Serif Display',Georgia,serif;--fm:'JetBrains Mono',ui-monospace,monospace;--r:12px;--r-sm:8px;--r-lg:16px;--r-xl:24px;--sh:0 1px 4px rgba(27,29,40,.06);--sh-md:0 6px 24px rgba(27,29,40,.1)}
*{box-sizing:border-box;margin:0}
body{font-family:var(--fb);background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar{position:fixed;top:0;left:0;width:220px;height:100vh;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;z-index:200;transition:transform .3s}
.sb-brand{padding:22px 20px 18px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);text-decoration:none;color:inherit}
.sb-logo{display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:.95rem}
.sb-brand-name{font-size:1.05rem;font-weight:700}
.sb-user{padding:18px 20px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border)}
.sb-av{width:38px;height:38px;border-radius:50%;background:linear-gradient(135deg,#6C5CE7,#a88beb);display:flex;align-items:center;justify-content:center;color:#fff;font-size:.78rem;font-weight:700;flex-shrink:0}
.sb-uname{font-size:.88rem;font-weight:600}
.sb-urole{font-size:.72rem;color:var(--ink3)}
.sb-chevron{color:var(--ink3);font-size:.8rem;cursor:pointer;margin-left:auto}
.sb-nav{flex:1;padding:10px;overflow-y:auto}
.sb-section{font-size:.62rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3);padding:12px 12px 6px}
.sb-link{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:var(--r-sm);color:var(--ink2);text-decoration:none;font-size:.88rem;font-weight:500;transition:all .15s}
.sb-link:hover{background:var(--bg);color:var(--ink)}
.sb-link.active{background:var(--accent-s);color:var(--accent);font-weight:600}
.sb-link i{font-size:1.1rem;width:22px;text-align:center}
.sb-badge{margin-left:auto;background:var(--accent);color:#fff;font-size:.62rem;font-weight:700;padding:2px 7px;border-radius:10px}
.sb-bottom{padding:10px 10px 16px;border-top:1px solid var(--border)}

.main{margin-left:220px;min-height:100vh}
.topbar{position:sticky;top:0;z-index:100;background:rgba(244,245,247,.92);backdrop-filter:blur(12px);border-bottom:1px solid transparent;padding:14px 32px;display:flex;align-items:center;justify-content:space-between;gap:16px;transition:border-color .2s}
.topbar.scrolled{border-bottom-color:var(--border)}
.topbar h1{font-size:1.45rem;font-weight:700;letter-spacing:-.02em}
.topbar p{font-size:.84rem;color:var(--ink2);margin:2px 0 0}
.tb-right{display:flex;align-items:center;gap:10px}
.tb-search{display:flex;align-items:center;gap:8px;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:8px 18px;width:260px;transition:border-color .2s}
.tb-search:focus-within{border-color:var(--accent)}
.tb-search input{border:none;outline:none;background:transparent;font-family:var(--fb);font-size:.84rem;width:100%;color:var(--ink)}
.tb-icon{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);background:var(--surface);display:flex;align-items:center;justify-content:center;color:var(--ink2);font-size:1rem;cursor:pointer;transition:all .15s;position:relative;text-decoration:none}
.tb-icon:hover{border-color:var(--accent);color:var(--accent)}
.tb-dot{position:absolute;top:6px;right:6px;width:8px;height:8px;border-radius:50%;background:var(--red);border:2px solid var(--surface)}
.body-area{padding:0 32px 60px}

/* ── Buttons ─────────────────────────────────────────────── */
.btn-cl{display:inline-flex;align-items:center;gap:7px;padding:10px 22px;border-radius:var(--r-xl);border:1px solid transparent;background:var(--accent);color:#fff;font-family:var(--fb);font-size:.86rem;font-weight:600;cursor:pointer;text-decoration:none;transition:all .2s}
.btn-cl:hover{background:var(--accent-h);box-shadow:0 6px 20px rgba(108,92,231,.25);color:#fff}
.btn-cl.ghost{background:var(--surface);border-color:var(--border);color:var(--ink2)}
.btn-cl.ghost:hover{border-color:var(--accent);color:var(--accent);background:var(--surface);box-shadow:none}
.btn-cl.danger{background:var(--red)}
.btn-cl.danger:hover{background:#c0392b;box-shadow:none}
.btn-cl.sm{padding:7px 16px;font-size:.78rem}
.btn-cl.block{width:100%;justify-content:center}

/* ── Page tabs ───────────────────────────────────────────── */
.page-tabs{display:flex;border-bottom:2px solid var(--border);margin-bottom:24px}
.p-tab{padding:12px 24px;font-size:.9rem;font-weight:600;color:var(--ink3);background:none;border:none;cursor:pointer;position:relative;transition:color .15s;font-family:var(--fb)}
.p-tab:hover{color:var(--ink)}
.p-tab.active{color:var(--accent)}
.p-tab.active::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--accent);border-radius:2px 2px 0 0}
.p-tab .tab-count{background:var(--accent);color:#fff;font-size:.6rem;font-weight:700;padding:1px 6px;border-radius:8px;margin-left:6px;vertical-align:middle}
.tab-panel{display:none;animation:fadeIn .3s ease}
.tab-panel.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ── Filter bar ──────────────────────────────────────────── */
.filter-bar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.filter-left{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.f-chip{padding:6px 16px;border-radius:20px;border:1px solid var(--border);background:var(--surface);font-family:var(--fb);font-size:.78rem;font-weight:600;color:var(--ink2);cursor:pointer;transition:all .15s;white-space:nowrap;text-decoration:none;display:inline-block}
.f-chip:hover{border-color:var(--accent);color:var(--accent)}
.f-chip.active{background:var(--accent);border-color:var(--accent);color:#fff}
.filter-right{display:flex;align-items:center;gap:8px}
/* Search box inside a filter bar: fixed width on desktop, full width on small
   screens, where the row is also allowed to wrap instead of pushing the page
   sideways. */
.filter-search{width:220px;padding:7px 12px;font-size:.8rem}
@media(max-width:700px){
  .filter-right{flex-wrap:wrap;width:100%}
  .filter-search{width:100%;flex:1 1 100%}
  .filter-right .f-select{flex:1 1 auto}
}
.f-select{padding:7px 30px 7px 12px;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--surface);font-family:var(--fb);font-size:.78rem;color:var(--ink2);cursor:pointer;outline:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' fill='%239295A3' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center}
.view-toggle{display:flex;border:1px solid var(--border);border-radius:var(--r-sm);overflow:hidden}
.vt-btn{width:36px;height:36px;border:none;background:var(--surface);color:var(--ink3);font-size:.95rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .12s}
.vt-btn:hover{color:var(--accent)}
.vt-btn.active{background:var(--accent);color:#fff}

/* ── Course cards ────────────────────────────────────────── */
.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}
.course-grid>*{min-width:0}
.c-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;cursor:pointer;transition:all .3s}
/* Stretched link: the title is the real anchor, its ::after covers the whole card.
   Never wrap .c-card in an <a> — the card contains anchors of its own and the
   parser would split it into two grid items. */
.c-card-link{color:inherit;text-decoration:none}
.c-card-link::after{content:'';position:absolute;inset:0;z-index:1}
.c-card-link:hover{color:var(--accent)}
.c-card:hover{border-color:var(--border2);box-shadow:var(--sh-md);transform:translateY(-4px)}
.c-thumb{height:170px;position:relative;overflow:hidden}
.c-thumb-bg{width:100%;height:100%;display:flex;align-items:center;justify-content:center}
.c-thumb-emoji{font-size:3.5rem;filter:drop-shadow(0 4px 12px rgba(0,0,0,.2));transition:transform .4s cubic-bezier(.34,1.56,.64,1)}
/* Uploaded cover image — fills the thumbnail, gradient stays as the backdrop
   while it loads and as the fallback when no image is set. */
.c-thumb-img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s cubic-bezier(.34,1.56,.64,1)}
.c-card:hover .c-thumb-img{transform:scale(1.04)}
img.c-inst-av,img.cd-inst-av,img.inst-av{object-fit:cover;background:var(--bg2)}
.cont-thumb img{width:100%;height:100%;object-fit:cover;border-radius:inherit;display:block}
.fc-emoji img{width:100%;height:100%;object-fit:cover;border-radius:inherit;display:block}
.cd-hero{overflow:hidden}
.cd-hero-img{width:100%;height:100%;object-fit:cover;display:block}
/* Admin image preview */
.img-preview{display:flex;align-items:center;gap:14px;padding:12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:10px}
.img-preview img{width:96px;height:60px;object-fit:cover;border-radius:var(--r-sm);border:1px solid var(--border)}
.img-preview.round img{width:56px;height:56px;border-radius:50%}
.img-preview .none{width:96px;height:60px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#fff}
.c-card:hover .c-thumb-emoji{transform:scale(1.1) rotate(-3deg)}
.c-tag{position:absolute;top:12px;left:12px;font-size:.64rem;font-weight:700;padding:4px 10px;border-radius:20px;text-transform:uppercase;letter-spacing:.04em;z-index:3;color:#fff}
.c-bookmark{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;background:rgba(255,255,255,.85);backdrop-filter:blur(4px);border:none;color:var(--ink3);display:flex;align-items:center;justify-content:center;font-size:.85rem;cursor:pointer;transition:all .2s;z-index:3}
.c-bookmark:hover,.c-bookmark.saved{color:var(--accent);background:var(--accent-s)}
.c-body{padding:16px 18px 18px}
.c-cat{font-size:.68rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.08em;margin-bottom:5px}
.c-title{font-size:1rem;font-weight:700;color:var(--ink);margin-bottom:6px;line-height:1.35;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.c-instructor{display:flex;align-items:center;gap:8px;margin-bottom:10px}
.c-inst-av{width:24px;height:24px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.55rem;font-weight:700;flex-shrink:0}
.c-inst-name{font-size:.78rem;color:var(--ink2)}
.c-meta{display:flex;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.c-meta-item{font-size:.74rem;color:var(--ink3);display:flex;align-items:center;gap:4px}
.c-meta-item i{font-size:.78rem}
.c-rating{display:flex;align-items:center;gap:3px;font-size:.76rem}
.c-rating .stars{color:var(--amber)}
.c-rating span{color:var(--ink3)}
.c-footer{display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--border)}
.c-price{font-size:1.05rem;font-weight:700;color:var(--ink)}
.c-price .orig{font-size:.78rem;color:var(--ink3);text-decoration:line-through;margin-left:4px;font-weight:400}
.c-price .free{color:var(--green);font-weight:700}
.c-enroll-btn{position:relative;z-index:2;padding:7px 18px;border-radius:var(--r-xl);background:var(--accent);border:none;color:#fff;font-family:var(--fb);font-size:.78rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:5px;text-decoration:none}
.c-enroll-btn:hover{background:var(--accent-h);box-shadow:0 4px 14px rgba(108,92,231,.25);color:#fff}
.c-enroll-btn.enrolled{background:var(--green)}
.c-enroll-btn[disabled]{opacity:.6;cursor:progress}
.c-progress{margin-bottom:12px}
.c-prog-bar{height:5px;background:var(--bg2);border-radius:5px;overflow:hidden;margin-bottom:4px}
.c-prog-fill{height:100%;border-radius:5px;transition:width 1s ease}
.c-prog-label{display:flex;justify-content:space-between;font-size:.7rem;font-weight:600}
.course-list .c-card{display:grid;grid-template-columns:200px 1fr;border-radius:var(--r-lg)}
.course-list .c-thumb{height:100%;min-height:140px;border-radius:var(--r-lg) 0 0 var(--r-lg)}
.course-list .c-body{display:flex;flex-direction:column;justify-content:center}

/* ── Detail modal ────────────────────────────────────────── */
.cd-overlay{position:fixed;inset:0;z-index:1000;background:rgba(27,29,40,.5);backdrop-filter:blur(6px);display:none;align-items:flex-start;justify-content:center;padding:60px 20px 20px;overflow-y:auto}
.cd-overlay.open{display:flex}
.cd-box{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);width:100%;max-width:820px;overflow:hidden;animation:modalIn .3s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(16px) scale(.98)}to{opacity:1;transform:none}}
.cd-hero{height:200px;position:relative;display:flex;align-items:center;justify-content:center}
.cd-hero-emoji{font-size:5rem;filter:drop-shadow(0 8px 24px rgba(0,0,0,.2))}
.cd-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.85);backdrop-filter:blur(4px);border:none;color:var(--ink2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.95rem;transition:all .15s;z-index:5}
.cd-close:hover{background:var(--accent-s);color:var(--accent)}
.cd-body{padding:28px 32px}
.cd-cat{font-size:.72rem;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px}
.cd-title{font-size:1.6rem;font-weight:700;color:var(--ink);margin-bottom:8px;line-height:1.3}
.cd-meta{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:16px}
.cd-meta-item{font-size:.82rem;color:var(--ink2);display:flex;align-items:center;gap:5px}
.cd-meta-item i{font-size:.88rem;color:var(--ink3)}
.cd-desc{font-size:.92rem;color:var(--ink2);line-height:1.7;margin-bottom:22px}
.cd-section-title{font-size:.92rem;font-weight:700;color:var(--ink);margin-bottom:12px;display:flex;align-items:center;gap:8px}
.cd-section-title i{color:var(--accent)}
.cd-module{border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:8px;overflow:hidden}
.cd-mod-head{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;cursor:pointer;transition:background .12s}
.cd-mod-head:hover{background:var(--bg)}
.cd-mod-name{font-size:.88rem;font-weight:600;display:flex;align-items:center;gap:8px}
.cd-mod-name .mod-num{font-family:var(--fm);font-size:.72rem;color:var(--ink3);width:24px}
.cd-mod-meta{font-size:.74rem;color:var(--ink3);display:flex;align-items:center;gap:8px}
.cd-mod-chevron{font-size:.75rem;color:var(--ink3);transition:transform .3s}
.cd-module.open .cd-mod-chevron{transform:rotate(180deg);color:var(--accent)}
.cd-mod-lessons{max-height:0;overflow:hidden;transition:max-height .35s ease}
.cd-module.open .cd-mod-lessons{max-height:1200px}
.cd-lesson{display:flex;align-items:center;gap:12px;padding:10px 16px 10px 48px;border-top:1px solid var(--border);font-size:.84rem;color:var(--ink2)}
.cd-lesson i{font-size:.75rem;color:var(--ink3);width:16px}
.cd-lesson .les-dur{margin-left:auto;font-size:.74rem;color:var(--ink3);font-family:var(--fm)}
.cd-lesson.done{color:var(--green)}
.cd-lesson.done i{color:var(--green)}
.cd-learn-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 20px;margin-bottom:22px}
.cd-learn-item{display:flex;align-items:flex-start;gap:8px;font-size:.86rem;color:var(--ink2)}
.cd-learn-item i{color:var(--green);font-size:.78rem;margin-top:3px;flex-shrink:0}
.cd-instructor{display:flex;align-items:center;gap:14px;padding:16px;background:var(--bg);border-radius:var(--r);margin-bottom:22px}
.cd-inst-av{width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;font-size:.9rem;font-weight:700;flex-shrink:0}
.cd-inst-name{font-size:.95rem;font-weight:600}
.cd-inst-role{font-size:.78rem;color:var(--ink3)}
.cd-inst-stats{display:flex;gap:14px;margin-top:4px}
.cd-inst-stat{font-size:.74rem;color:var(--ink2)}
.cd-inst-stat strong{color:var(--ink)}
.cd-enroll-bar{display:flex;align-items:center;justify-content:space-between;padding:18px 0;border-top:1px solid var(--border);margin-top:8px;flex-wrap:wrap;gap:12px}
.cd-price{font-size:1.5rem;font-weight:700;color:var(--ink)}
.cd-price .orig{font-size:.9rem;color:var(--ink3);text-decoration:line-through;margin-left:6px;font-weight:400}
.cd-enroll-btn{padding:12px 32px;border-radius:var(--r-xl);background:var(--accent);border:none;color:#fff;font-family:var(--fb);font-size:.92rem;font-weight:600;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:7px;text-decoration:none}
.cd-enroll-btn:hover{background:var(--accent-h);box-shadow:0 6px 20px rgba(108,92,231,.25);color:#fff}
.cd-enroll-btn.enrolled{background:var(--green)}

/* ── Stats ───────────────────────────────────────────────── */
.stats-banner{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:24px}
.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:18px 20px;display:flex;align-items:center;gap:14px;transition:all .2s}
.stat-card:hover{border-color:var(--border2);box-shadow:var(--sh-md)}
.stat-icon{width:44px;height:44px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}
.stat-val{font-family:var(--fd);font-size:1.5rem;line-height:1.1}
.stat-label{font-size:.76rem;color:var(--ink2);font-weight:500}

/* ── Panels / tables ─────────────────────────────────────── */
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px 24px;margin-bottom:20px}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.panel-title{font-size:1rem;font-weight:700;display:flex;align-items:center;gap:8px}
.panel-title i{color:var(--accent)}
.panel-link{font-size:.8rem;font-weight:600;color:var(--accent);text-decoration:none}
.cl-table{width:100%;border-collapse:collapse;font-size:.85rem}
.cl-table th{text-align:left;font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;color:var(--ink3);padding:10px 12px;border-bottom:1px solid var(--border);white-space:nowrap}
.cl-table td{padding:12px;border-bottom:1px solid var(--border);color:var(--ink2);vertical-align:middle}
.cl-table tr:last-child td{border-bottom:none}
.cl-table tbody tr:hover{background:var(--bg)}
.pill{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:20px;font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.pill.green{background:var(--green-s);color:var(--green)}
.pill.amber{background:var(--amber-s);color:var(--amber)}
.pill.grey{background:var(--bg2);color:var(--ink3)}
.pill.accent{background:var(--accent-s);color:var(--accent)}
.pill.red{background:var(--red-s);color:var(--red)}
.pill.teal{background:var(--teal-s);color:var(--teal)}
.empty-state{text-align:center;padding:60px 20px;color:var(--ink3)}
.empty-state i{font-size:2.5rem;display:block;margin-bottom:10px;opacity:.3}

/* ── Continue-learning row ───────────────────────────────── */
.cont-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.cont-card{display:flex;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:16px;text-decoration:none;color:inherit;transition:all .2s}
.cont-card:hover{border-color:var(--border2);box-shadow:var(--sh-md);transform:translateY(-2px)}
.cont-thumb{width:56px;height:56px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-size:1.6rem;flex-shrink:0}
.cont-title{font-size:.92rem;font-weight:700;line-height:1.3}
.cont-sub{font-size:.76rem;color:var(--ink3);margin-bottom:8px}

/* ── Learn player ────────────────────────────────────────── */
.learn-grid{display:grid;grid-template-columns:1fr 320px;gap:20px;align-items:start}
.lesson-row{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:8px;background:var(--surface);transition:all .15s}
.lesson-row:hover{border-color:var(--border2)}
.lesson-row.done{background:var(--green-s);border-color:#c9ecd8}
.lesson-check{width:22px;height:22px;border-radius:6px;border:1.5px solid var(--border2);background:var(--surface);display:flex;align-items:center;justify-content:center;cursor:pointer;color:transparent;flex-shrink:0;transition:all .15s;font-size:.7rem;padding:0}
.lesson-row.done .lesson-check{background:var(--green);border-color:var(--green);color:#fff}
.lesson-name{font-size:.88rem;font-weight:500}
.lesson-dur{margin-left:auto;font-family:var(--fm);font-size:.74rem;color:var(--ink3)}
.big-progress{height:10px;border-radius:10px;background:var(--bg2);overflow:hidden;margin:10px 0 6px}
.big-progress span{display:block;height:100%;background:var(--accent);border-radius:10px;transition:width .6s ease}

/* ── Assessments ─────────────────────────────────────────── */
.asm-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.asm-grid>*{min-width:0}
.asm-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px;transition:all .2s}
.asm-card:hover{border-color:var(--border2);box-shadow:var(--sh-md)}
.asm-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:8px}
.asm-title{font-size:1rem;font-weight:700;line-height:1.35}
.asm-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:.76rem;color:var(--ink3);margin:10px 0 14px}
.asm-meta i{margin-right:4px}

/* Score ring — percentage drawn as a conic-gradient dial */
.score-ring{--pct:0;--ring:var(--accent);width:96px;height:96px;border-radius:50%;flex-shrink:0;background:conic-gradient(var(--ring) calc(var(--pct)*1%),var(--bg2) 0);display:flex;align-items:center;justify-content:center;position:relative}
.score-ring::after{content:'';position:absolute;inset:8px;border-radius:50%;background:var(--surface)}
.score-ring span{position:relative;z-index:1;font-family:var(--fd);font-size:1.4rem;line-height:1}
.score-ring.sm{width:56px;height:56px}
.score-ring.sm::after{inset:6px}
.score-ring.sm span{font-size:.85rem;font-family:var(--fb);font-weight:700}
.score-ring.pass{--ring:var(--green)}
.score-ring.fail{--ring:var(--amber)}

/* Question paper */
.q-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px 24px;margin-bottom:16px}
.q-head{display:flex;align-items:flex-start;gap:10px}
.q-num{font-family:var(--fm);font-size:.72rem;color:var(--ink3);letter-spacing:.06em}
.q-text{font-size:1rem;font-weight:600;line-height:1.5;margin:6px 0 4px}
.q-hint{font-size:.74rem;color:var(--ink3);margin-bottom:14px}
.q-points{margin-left:auto;font-size:.72rem;font-weight:600;color:var(--ink3);white-space:nowrap}
.opt{display:flex;align-items:flex-start;gap:11px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:8px;cursor:pointer;transition:all .15s;background:var(--surface)}
.opt:hover{border-color:var(--accent);background:var(--accent-s)}
.opt input{margin-top:3px;accent-color:var(--accent);flex-shrink:0;width:16px;height:16px}
.opt-text{font-size:.9rem;line-height:1.5}
.opt.correct{border-color:var(--green);background:var(--green-s)}
.opt.wrong{border-color:var(--red);background:var(--red-s)}
.opt.missed{border-color:var(--green);border-style:dashed;background:transparent}
.opt.review{cursor:default}
.opt.review:hover{border-color:var(--border);background:inherit}
.opt-mark{margin-left:auto;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
.q-card.correct{border-left:3px solid var(--green)}
.q-card.wrong{border-left:3px solid var(--red)}
.q-explain{margin-top:12px;padding:12px 14px;background:var(--bg);border-radius:var(--r-sm);font-size:.85rem;color:var(--ink2);line-height:1.6}
.q-explain strong{color:var(--ink)}

/* Sticky quiz bar with the countdown */
.quiz-bar{position:sticky;bottom:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:14px 20px;margin-top:20px;box-shadow:0 -4px 20px rgba(27,29,40,.06)}
.quiz-count{font-size:.82rem;color:var(--ink2)}
.quiz-count strong{color:var(--ink)}
.quiz-timer{font-family:var(--fm);font-size:1rem;font-weight:500;padding:6px 14px;border-radius:var(--r-sm);background:var(--bg);color:var(--ink2)}
.quiz-timer.warn{background:var(--amber-s);color:var(--amber)}
.quiz-timer.danger{background:var(--red-s);color:var(--red);font-weight:700}

/* Admin option editor rows */
.opt-row{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:8px;background:var(--surface)}
.opt-row .form-field{margin:0;flex:1}
.opt-correct{display:flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;color:var(--ink2);white-space:nowrap}
.opt-correct input{accent-color:var(--green);width:16px;height:16px}
.opt-remove{border:none;background:var(--red-s);color:var(--red);width:32px;height:32px;border-radius:var(--r-sm);cursor:pointer;flex-shrink:0}
.opt-remove:hover{background:var(--red);color:#fff}
@media(max-width:640px){.score-ring{width:76px;height:76px}.opt-row{flex-wrap:wrap}}


/* ── Slide deck (lesson topics) ───────────────────────────── */
.deck{display:grid;grid-template-columns:260px 1fr;gap:20px;align-items:start}
/* Grid items default to min-width:auto, so one wide table or long word inside
   a slide would stretch the whole track and scroll the page sideways. */
.deck>*{min-width:0}
.deck-rail{list-style:none;margin:0;padding:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;position:sticky;top:80px;max-height:calc(100vh - 110px);overflow-y:auto}
.rail-dot{display:flex;align-items:center;gap:10px;padding:11px 14px;text-decoration:none;color:var(--ink2);border-bottom:1px solid var(--border);transition:all .15s}
.deck-rail li:last-child .rail-dot{border-bottom:none}
.rail-dot:hover{background:var(--bg);color:var(--ink)}
.rail-dot.current{background:var(--accent-s);color:var(--accent);font-weight:600}
.rail-dot.seen .rail-num{background:var(--green);border-color:var(--green);color:#fff}
.rail-num{width:22px;height:22px;flex-shrink:0;border-radius:50%;border:1.5px solid var(--border2);display:flex;align-items:center;justify-content:center;font-size:.68rem;font-weight:700;font-family:var(--fm)}
.rail-dot.current .rail-num{border-color:var(--accent);background:var(--accent);color:#fff}
.rail-title{font-size:.82rem;line-height:1.35;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}
.rail-icon{font-size:.85rem;color:var(--ink3);flex-shrink:0}

.slide-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden}
.slide-head{padding:20px 26px 0;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.slide-title{font-size:1.35rem;font-weight:700;line-height:1.3;width:100%;margin-top:6px}
.slide-body{padding:18px 26px 26px}
.slide-caption{padding:14px 26px;border-top:1px solid var(--border);background:var(--bg);font-size:.85rem;color:var(--ink2);line-height:1.6}
.slide-source{margin-top:10px;font-size:.78rem;color:var(--ink3)}

/* Authored HTML — scoped typography so slide markup can't restyle the app */
.slide-html{font-size:.95rem;line-height:1.75;color:var(--ink2);overflow-x:auto;overflow-wrap:anywhere}
.slide-html > :first-child{margin-top:0}
.slide-html h1,.slide-html h2,.slide-html h3,.slide-html h4{color:var(--ink);line-height:1.3;margin:22px 0 10px;font-weight:700}
.slide-html h1{font-size:1.5rem}.slide-html h2{font-size:1.25rem}.slide-html h3{font-size:1.05rem}.slide-html h4{font-size:.95rem}
.slide-html p{margin-bottom:14px}
.slide-html ul,.slide-html ol{margin:0 0 14px;padding-left:22px}
.slide-html li{margin-bottom:6px}
.slide-html a{color:var(--accent);text-decoration:underline}
.slide-html code{font-family:var(--fm);font-size:.86em;background:var(--bg2);padding:2px 6px;border-radius:5px;color:var(--ink)}
.slide-html pre{background:var(--ink);color:#e8e9f0;padding:16px 18px;border-radius:var(--r-sm);overflow-x:auto;margin-bottom:16px;font-size:.84rem;line-height:1.6}
.slide-html pre code{background:none;padding:0;color:inherit;font-size:inherit}
.slide-html blockquote{border-left:3px solid var(--accent);padding:2px 0 2px 16px;margin:0 0 16px;color:var(--ink2);font-style:italic}
.slide-html img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:6px 0}
.slide-html table{width:100%;border-collapse:collapse;margin-bottom:16px;font-size:.88rem;table-layout:fixed}
.slide-html th,.slide-html td{border:1px solid var(--border);padding:8px 10px;text-align:left}
.slide-html th{background:var(--bg);font-weight:700;color:var(--ink)}
.slide-html hr{border:none;border-top:1px solid var(--border);margin:20px 0}

/* Video / PDF frames keep a stable aspect so the page never jumps */
.slide-frame{position:relative;width:100%;aspect-ratio:16/9;max-width:100%;background:var(--ink);border-radius:var(--r-sm);overflow:hidden}
.slide-frame iframe,.slide-frame video{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}
.slide-frame-doc{aspect-ratio:4/3;background:var(--bg2)}

.slide-resource{display:flex;align-items:center;gap:16px;padding:20px;border:1px dashed var(--border2);border-radius:var(--r);background:var(--bg)}
.slide-resource-icon{width:52px;height:52px;border-radius:var(--r);background:var(--amber-s);color:var(--amber);display:flex;align-items:center;justify-content:center;font-size:1.5rem;flex-shrink:0}

.deck-nav{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:16px;flex-wrap:wrap}
.deck-progress{flex:1;min-width:140px;display:flex;align-items:center;gap:10px}
.deck-progress-bar{flex:1;height:6px;border-radius:6px;background:var(--bg2);overflow:hidden}
.deck-progress-bar span{display:block;height:100%;background:var(--accent);border-radius:6px;transition:width .3s ease}
.deck-progress-label{font-size:.76rem;font-weight:600;color:var(--ink3);font-family:var(--fm);white-space:nowrap}

/* Admin slide list */
.slide-row{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--border);border-radius:var(--r-sm);margin-bottom:8px;background:var(--surface)}
.slide-row.draft{opacity:.62;border-style:dashed}
.slide-row-num{width:26px;height:26px;border-radius:50%;background:var(--bg2);color:var(--ink2);display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;font-family:var(--fm);flex-shrink:0}
.slide-row-moves{display:flex;flex-direction:column;gap:2px}
.slide-row-moves button{border:1px solid var(--border);background:var(--surface);color:var(--ink3);width:26px;height:18px;line-height:1;border-radius:4px;cursor:pointer;font-size:.6rem;padding:0}
.slide-row-moves button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}
.slide-row-moves button:disabled{opacity:.35;cursor:default}
.code-area{font-family:var(--fm)!important;font-size:.82rem!important;line-height:1.6;tab-size:2}

@media(max-width:900px){
  .deck{grid-template-columns:1fr}
  .deck-rail{position:static;max-height:none;display:flex;overflow-x:auto;gap:0}
  .deck-rail li{flex:0 0 auto}
  .rail-dot{border-bottom:none;border-right:1px solid var(--border);white-space:nowrap}
  .rail-title{max-width:140px}
  .slide-head,.slide-body{padding-left:18px;padding-right:18px}
  .deck-nav .btn-cl{flex:1 1 auto;justify-content:center}
}

/* ── Public / landing ────────────────────────────────────── */
.pub-nav{position:sticky;top:0;z-index:150;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.pub-nav-inner{max-width:1180px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:18px}
.pub-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:inherit;font-weight:700;font-size:1.1rem}
.pub-links{display:flex;gap:22px;margin-left:24px}
.pub-links a{font-size:.86rem;font-weight:500;color:var(--ink2);text-decoration:none}
.pub-links a:hover{color:var(--accent)}
.pub-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.hero{padding:72px 0 56px;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:7px;background:var(--accent-s);color:var(--accent);font-size:.74rem;font-weight:700;padding:6px 14px;border-radius:20px;margin-bottom:18px}
.hero h1{font-family:var(--fd);font-size:3.2rem;line-height:1.12;letter-spacing:-.01em;margin-bottom:16px}
.hero p.lede{font-size:1.05rem;color:var(--ink2);margin-bottom:26px;max-width:34em}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px}
.hero-stats{display:flex;gap:32px;flex-wrap:wrap}
.hero-stat strong{display:block;font-family:var(--fd);font-size:1.6rem;line-height:1.1}
.hero-stat span{font-size:.78rem;color:var(--ink3)}
.hero-art{position:relative;height:380px}
.float-card{position:absolute;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--sh-md);padding:16px 18px;display:flex;align-items:center;gap:12px;animation:float 6s ease-in-out infinite}
.float-card .fc-emoji{width:46px;height:46px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-size:1.4rem}
.float-card .fc-title{font-size:.86rem;font-weight:700}
.float-card .fc-sub{font-size:.72rem;color:var(--ink3)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.section{padding:56px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 34px}
.section-head h2{font-family:var(--fd);font-size:2.1rem;line-height:1.2;margin-bottom:10px}
.section-head p{color:var(--ink2);font-size:.95rem}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:14px}
.cat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:20px;text-decoration:none;color:inherit;transition:all .2s}
.cat-card:hover{border-color:var(--accent);box-shadow:var(--sh-md);transform:translateY(-3px)}
.cat-icon{width:42px;height:42px;border-radius:var(--r);background:var(--accent-s);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.15rem;margin-bottom:12px}
.cat-name{font-weight:700;font-size:.95rem}
.cat-count{font-size:.76rem;color:var(--ink3)}
.inst-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.inst-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:22px;text-align:center}
.inst-av{width:64px;height:64px;border-radius:50%;margin:0 auto 12px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:1.1rem}
/* ── Features ────────────────────────────────────────────── */
.feat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}
.feat-grid>*{min-width:0}
.feat-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-lg);padding:26px 24px;transition:all .25s}
.feat-card:hover{border-color:var(--border2);box-shadow:var(--sh-md);transform:translateY(-3px)}
.feat-icon{width:46px;height:46px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-size:1.25rem;margin-bottom:16px}
.feat-title{font-size:1rem;font-weight:700;margin-bottom:7px}
.feat-text{font-size:.88rem;color:var(--ink2);line-height:1.65}
.feat-note{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:.76rem;font-weight:600;color:var(--accent)}

/* ── Carousel ────────────────────────────────────────────── */
.carousel{position:relative}
.carousel-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.carousel-head h2{font-family:var(--fd);font-size:2.1rem;line-height:1.2}
.carousel-head p{color:var(--ink2);font-size:.95rem;margin-top:4px}
.carousel-nav{display:flex;gap:8px}
.car-btn{width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--ink2);font-size:1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s}
.car-btn:hover:not(:disabled){border-color:var(--accent);color:var(--accent);box-shadow:var(--sh)}
.car-btn:disabled{opacity:.35;cursor:default}
/* Scroll-snap track: no JS needed to scroll, JS only drives the arrows/dots. */
.carousel-track{display:grid;grid-auto-flow:column;grid-auto-columns:calc((100% - 36px)/3);gap:18px;overflow-x:auto;overflow-y:hidden;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:10px 0 22px;scrollbar-width:none;-ms-overflow-style:none;overscroll-behavior-x:contain}
.carousel-track::-webkit-scrollbar{display:none}
.carousel-track>*{scroll-snap-align:start;min-width:0}
.carousel-dots{display:flex;justify-content:center;gap:7px;margin-top:2px}
.car-dot{width:8px;height:8px;padding:0;border:none;border-radius:50%;background:var(--border2);cursor:pointer;transition:all .25s}
.car-dot:hover{background:var(--ink3)}
.car-dot.active{background:var(--accent);width:22px;border-radius:5px}
@media(prefers-reduced-motion:reduce){.carousel-track{scroll-behavior:auto}.feat-card:hover{transform:none}}
@media(max-width:1000px){.carousel-track{grid-auto-columns:calc((100% - 18px)/2)}}
@media(max-width:680px){.carousel-track{grid-auto-columns:88%}.carousel-head h2{font-size:1.7rem}}

.cta-band{background:linear-gradient(135deg,#4a4070,#6C5CE7);border-radius:var(--r-xl);padding:52px 40px;text-align:center;color:#fff;margin:40px 0 64px}
.cta-band h2{font-family:var(--fd);font-size:2.1rem;margin-bottom:10px}
.cta-band p{opacity:.85;margin-bottom:22px}
.cta-band .btn-cl{background:#fff;color:var(--accent)}
.cta-band .btn-cl:hover{background:#f2f0ff;color:var(--accent)}
.pub-footer{border-top:1px solid var(--border);padding:32px 0;color:var(--ink3);font-size:.82rem}
.pub-footer .wrap{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ── Auth ────────────────────────────────────────────────── */
.auth-wrap{min-height:100vh;display:grid;grid-template-columns:1fr 1fr}
.auth-side{background:linear-gradient(150deg,#2c2650,#6C5CE7);color:#fff;padding:56px 48px;display:flex;flex-direction:column;justify-content:space-between}
.auth-side h2{font-family:var(--fd);font-size:2.2rem;line-height:1.2;margin-bottom:14px}
.auth-side ul{list-style:none;padding:0;margin:24px 0 0}
.auth-side li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;font-size:.9rem;opacity:.9}
.auth-main{display:flex;align-items:center;justify-content:center;padding:40px 24px}
.auth-card{width:100%;max-width:400px}
.auth-card h1{font-size:1.6rem;font-weight:700;margin-bottom:6px}
.auth-card .sub{color:var(--ink2);font-size:.88rem;margin-bottom:26px}
.form-field{margin-bottom:16px}
.form-field label{display:block;font-size:.8rem;font-weight:600;color:var(--ink2);margin-bottom:6px}
.form-field input[type=text],.form-field input[type=email],.form-field input[type=password],.form-field input[type=number],.form-field input[type=url],.form-field select,.form-field textarea,.cl-input{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:var(--r-sm);font-family:var(--fb);font-size:.88rem;background:var(--surface);color:var(--ink);outline:none;transition:border-color .15s}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus,.cl-input:focus{border-color:var(--accent)}
.form-field .help{font-size:.74rem;color:var(--ink3);margin-top:4px}
.form-error{color:var(--red);font-size:.78rem;margin-top:5px}
.form-check-inline{display:flex;align-items:center;gap:8px;font-size:.84rem;color:var(--ink2)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}

/* ── Alerts / toast ──────────────────────────────────────── */
.cl-alert{padding:12px 16px;border-radius:var(--r-sm);font-size:.86rem;font-weight:500;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.cl-alert.success{background:var(--green-s);color:#1d7a45}
.cl-alert.danger{background:var(--red-s);color:#b93325}
.cl-alert.warning{background:var(--amber-s);color:#a1670a}
.toast-n{position:fixed;bottom:24px;right:24px;background:var(--ink);color:#fff;padding:14px 22px;border-radius:var(--r);font-size:.86rem;font-weight:500;box-shadow:0 12px 40px rgba(0,0,0,.18);transform:translateY(80px);opacity:0;transition:all .4s cubic-bezier(.34,1.56,.64,1);z-index:2000;display:flex;align-items:center;gap:10px}
.toast-n.show{transform:translateY(0);opacity:1}

/* ── Pagination ──────────────────────────────────────────── */
.pager{display:flex;gap:6px;justify-content:center;margin-top:28px;flex-wrap:wrap}
.pager a,.pager span{min-width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--r-sm);border:1px solid var(--border);background:var(--surface);color:var(--ink2);text-decoration:none;font-size:.82rem;font-weight:600;padding:0 10px}
.pager a:hover{border-color:var(--accent);color:var(--accent)}
.pager .current{background:var(--accent);border-color:var(--accent);color:#fff}
.pager .disabled{opacity:.45}

/* ── Misc ────────────────────────────────────────────────── */
.mob-toggle{display:none;position:fixed;top:14px;left:14px;z-index:300;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-sm);padding:7px 10px;font-size:1.1rem;color:var(--ink);cursor:pointer}
.mob-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.2);z-index:190}
.mob-overlay.show{display:block}
.bar-chart{display:flex;align-items:flex-end;gap:6px;height:120px}
.bar-chart div{flex:1;background:var(--accent-s);border-radius:4px 4px 0 0;position:relative;min-height:3px}
.bar-chart div span{position:absolute;bottom:-20px;left:0;right:0;text-align:center;font-size:.6rem;color:var(--ink3)}
@keyframes appear{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.appear{animation:appear .4s ease both}

@media(max-width:1100px){.stats-banner{grid-template-columns:1fr 1fr}.hero{grid-template-columns:1fr;gap:24px}.hero-art{display:none}.learn-grid{grid-template-columns:1fr}}
@media(max-width:900px){.auth-wrap{grid-template-columns:1fr}.auth-side{display:none}}
@media(max-width:860px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.main{margin-left:0}.mob-toggle{display:block}.topbar{padding:14px 16px;padding-left:52px}.body-area{padding:0 16px 40px}}
@media(max-width:640px){.stats-banner{grid-template-columns:1fr}.course-grid{grid-template-columns:1fr}.course-list .c-card{grid-template-columns:1fr}.course-list .c-thumb{height:150px;border-radius:var(--r-lg) var(--r-lg) 0 0}.cd-learn-grid{grid-template-columns:1fr}.tb-search{display:none}.hero h1{font-size:2.3rem}.form-grid{grid-template-columns:1fr}.pub-links{display:none}}

/* ── Checkout ────────────────────────────────────────────── */
.form-field input[type=tel]{width:100%;padding:11px 14px;border:1px solid var(--border);border-radius:var(--r-sm);font-family:var(--fb);font-size:.88rem;background:var(--surface);color:var(--ink);outline:none;transition:border-color .15s}
.co-steps{display:flex;gap:8px;list-style:none;padding:0;margin:0 0 18px;flex-wrap:wrap}
.co-steps li{display:flex;align-items:center;gap:8px;font-size:.8rem;font-weight:600;color:var(--ink3);padding:6px 14px 6px 6px;border:1px solid var(--border);border-radius:30px;background:var(--surface)}
.co-steps li span{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--bg2);font-size:.72rem}
.co-steps li.active{color:var(--accent);border-color:var(--accent)}
.co-steps li.active span{background:var(--accent);color:#fff}
.co-steps li.done{color:var(--green)}
.co-steps li.done span{background:var(--green-s);color:var(--green)}
.co-course{display:flex;gap:12px;align-items:center;margin-bottom:16px}
.co-thumb{width:64px;height:48px;border-radius:var(--r-sm);display:grid;place-items:center;overflow:hidden;flex:none;font-size:1.5rem}
.co-thumb img{width:100%;height:100%;object-fit:cover}
.co-title{font-weight:700;color:var(--ink);font-size:.92rem;line-height:1.3}
.co-sub{font-size:.74rem;color:var(--ink3);margin-top:2px}
.co-lines{width:100%;border-collapse:collapse;font-size:.86rem}
.co-lines td{padding:7px 0;color:var(--ink2);vertical-align:top}
.co-lines td:last-child{text-align:right;color:var(--ink)}
.co-lines .co-total td{border-top:1px solid var(--border);padding-top:11px;font-weight:800;font-size:1rem;color:var(--ink)}
.co-ref{font-family:var(--fm);font-size:.74rem;color:var(--ink3);margin-top:8px}
.co-perks{list-style:none;padding:12px 0 0;margin:12px 0 0;border-top:1px solid var(--border);font-size:.8rem;color:var(--ink2);display:grid;gap:6px}
.co-perks i{color:var(--accent);margin-right:6px}
.co-secure{font-size:.76rem;color:var(--ink3);margin:12px 0 0;display:flex;gap:6px;align-items:flex-start;justify-content:center}
.co-secure i{color:var(--green)}
.co-amount{font-size:2.4rem;font-weight:800;color:var(--ink);letter-spacing:-.02em}
.co-status{min-height:1.4em;margin-top:12px;font-size:.84rem;color:var(--ink3)}
.co-status[data-tone=error]{color:var(--red)}
.co-status[data-tone=ok]{color:var(--green)}
.co-done{text-align:center;padding:38px 24px}
.co-done h2{font-weight:800;margin:14px 0 6px}
.co-done-icon{width:64px;height:64px;border-radius:50%;background:var(--green-s);color:var(--green);display:grid;place-items:center;font-size:2rem;margin:0 auto}
button[disabled].btn-cl{opacity:.55;cursor:not-allowed}

/* ── Email verification ──────────────────────────────────── */
.verify-icon{width:56px;height:56px;border-radius:50%;background:var(--accent-s);color:var(--accent);display:grid;place-items:center;font-size:1.6rem;margin-bottom:14px}
.verify-icon.bad{background:var(--red-s);color:var(--red)}
.verify-tips{margin:4px 0 18px;padding-left:18px;font-size:.84rem;color:var(--ink2);display:grid;gap:5px}
.verify-tips a{color:var(--accent);font-weight:600}