@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:wght@400;500;600;700;800&family=Gambetta:ital,wght@0,400;0,600;1,400&family=Fira+Code:wght@400;500&display=swap');
:root{--bg:#09090b;--bg2:#111118;--sf:#18181f;--sf2:#222230;--w:#f0eff4;--t:#a0a0b8;--m:#5a5a70;--bd:#2a2a38;--ac:#6c5ce7;--ac2:#a29bfe;--gr:#00d2a0;--rd:#ff6b6b;--or:#ffa94d;--yw:#ffd43b;--bl:#4facfe;--rs:#ff6b81;--r:14px;--font:'Bricolage Grotesque',system-ui,sans-serif;--serif:'Gambetta',Georgia,serif;--mono:'Fira Code',monospace}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font);background:var(--bg);color:var(--t);-webkit-font-smoothing:antialiased;line-height:1.6}a{color:var(--ac2);text-decoration:none}button{font-family:var(--font);cursor:pointer}input,select,textarea{font-family:var(--font)}
.navbar{position:sticky;top:0;z-index:100;background:rgba(9,9,11,.88);backdrop-filter:blur(20px);border-bottom:1px solid var(--bd)}.nav-inner{max-width:1280px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;height:64px}.nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none}.nav-logo{width:36px;height:36px;background:linear-gradient(135deg,var(--ac),var(--bl));border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;color:#fff;box-shadow:0 2px 10px rgba(108,92,231,.3)}.nav-title{font-weight:800;font-size:16px;color:var(--w)}.nav-title span{color:var(--ac2)}.nav-sub{font-size:10px;color:var(--m);text-transform:uppercase;letter-spacing:1.5px;font-weight:600}.nav-links{display:flex;gap:24px;align-items:center}.nav-link{font-size:14px;color:var(--m);font-weight:500;transition:color .3s;text-decoration:none}.nav-link:hover,.nav-link.active{color:var(--w)}.nav-cart{position:relative;font-size:20px;cursor:pointer;text-decoration:none;color:var(--t)}.cart-badge{position:absolute;top:-6px;right:-10px;width:18px;height:18px;background:var(--rd);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:800;color:#fff;display:none}.nav-user{display:flex;align-items:center;gap:10px}.nav-avatar{width:34px;height:34px;border-radius:50%;background:var(--ac);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px;text-decoration:none}.nav-logout{font-size:12px;color:var(--m);cursor:pointer}.nav-logout:hover{color:var(--rd)}.btn-login{background:var(--ac);color:#fff;border:none;padding:8px 20px;border-radius:50px;font-size:13px;font-weight:700;transition:all .3s;text-decoration:none;display:inline-block}.btn-login:hover{background:var(--ac2);transform:translateY(-1px);color:#fff}
.hero{max-width:1280px;margin:0 auto;padding:80px 24px 60px;text-align:center;position:relative}.hero::before{content:'';position:absolute;top:-40px;left:50%;transform:translateX(-50%);width:600px;height:400px;background:radial-gradient(ellipse,rgba(108,92,231,.1),transparent 70%);pointer-events:none}.hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(0,210,160,.1);border:1px solid rgba(0,210,160,.2);border-radius:50px;padding:6px 16px;font-size:12px;font-weight:700;color:var(--gr);margin-bottom:20px;letter-spacing:.5px}.hero h1{font-family:var(--serif);font-size:clamp(2.2rem,5.5vw,4rem);font-weight:600;color:var(--w);line-height:1.12;margin-bottom:16px}.hero h1 .hl{color:var(--ac2);font-style:italic}.hero h1 .hl-g{color:var(--gr)}.hero-p{font-size:17px;color:var(--t);max-width:560px;margin:0 auto 32px;line-height:1.7}.hero-p strong{color:var(--w)}.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:6px;padding:12px 28px;border-radius:60px;font-size:14px;font-weight:700;border:none;cursor:pointer;transition:all .3s;text-decoration:none}.btn-primary{background:var(--ac);color:#fff}.btn-primary:hover{background:var(--ac2);transform:translateY(-2px);box-shadow:0 8px 25px rgba(108,92,231,.3);color:#fff}.btn-ghost{background:transparent;color:var(--w);border:1px solid var(--bd)}.btn-ghost:hover{border-color:var(--ac);color:var(--ac2)}.btn-green{background:var(--gr);color:#fff}.btn-green:hover{transform:translateY(-2px)}.btn-red{background:var(--rd);color:#fff}.btn-sm{padding:8px 18px;font-size:12px}.btn-full{width:100%;justify-content:center}
.stats-row{max-width:1280px;margin:0 auto;padding:0 24px 60px;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.stat-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:24px 20px;text-align:center;transition:transform .3s}.stat-card:hover{transform:translateY(-3px)}.stat-num{font-family:var(--serif);font-size:32px;font-weight:600;line-height:1;margin-bottom:4px}.stat-label{font-size:13px;color:var(--m)}
.section{max-width:1280px;margin:0 auto;padding:0 24px 60px}.stag{font-size:12px;font-weight:800;letter-spacing:3px;text-transform:uppercase;margin-bottom:6px}.stitle{font-family:var(--serif);font-size:clamp(1.6rem,3.5vw,2.2rem);font-weight:600;color:var(--w);line-height:1.2;margin-bottom:4px}.sdesc{font-size:14px;color:var(--m);margin-bottom:24px}
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.filter-chip{padding:7px 16px;border-radius:50px;font-size:12px;font-weight:700;cursor:pointer;background:var(--sf);color:var(--m);border:1px solid var(--bd);transition:all .3s;white-space:nowrap}.filter-chip:hover{border-color:var(--ac);color:var(--ac)}.filter-chip.active{background:var(--ac);color:#fff;border-color:var(--ac)}
.search-bar{position:relative;max-width:420px;margin-bottom:20px}.search-bar input{width:100%;padding:11px 16px 11px 40px;background:var(--sf);border:1px solid var(--bd);border-radius:50px;color:var(--w);font-size:14px;outline:none;transition:border-color .3s}.search-bar input:focus{border-color:var(--ac)}.search-bar input::placeholder{color:var(--m)}.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--m);pointer-events:none}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}.card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);overflow:hidden;transition:all .4s cubic-bezier(.16,1,.3,1);cursor:pointer;text-decoration:none;color:inherit}.card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.3);border-color:transparent}.card-head{padding:24px 20px 16px;border-bottom:1px solid var(--bd);position:relative}.card-head.ai{background:linear-gradient(135deg,rgba(108,92,231,.12),transparent)}.card-head.def{background:linear-gradient(135deg,rgba(0,210,160,.06),transparent)}.card-emoji{font-size:36px;margin-bottom:8px;display:block}.card-tags{display:flex;gap:4px;position:absolute;top:16px;right:16px}.tag{font-size:10px;font-weight:700;padding:3px 8px;border-radius:5px;text-transform:uppercase;letter-spacing:.5px}.tag-best{background:rgba(255,169,77,.12);color:var(--or)}.tag-new,.tag-trend{background:rgba(108,92,231,.15);color:var(--ac2)}.tag-cert{background:rgba(0,210,160,.12);color:var(--gr)}.card-title{font-size:16px;font-weight:700;color:var(--w);margin-bottom:4px;line-height:1.3}.card-meta{font-size:12px;color:var(--m)}.card-body{padding:16px 20px}.card-desc{font-size:13px;color:var(--t);line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.price-row{display:flex;justify-content:space-between;align-items:center}.price-now{font-size:18px;font-weight:800;color:var(--w)}.price-orig{font-size:13px;color:var(--m);text-decoration:line-through;margin-left:8px}.price-off{font-size:11px;font-weight:700;color:var(--gr);margin-left:6px}.card-rating{font-size:13px;color:var(--yw);font-weight:700}.card-enrolled{margin-top:8px;font-size:12px;font-weight:700;color:var(--gr)}
.w-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:20px;transition:all .4s;cursor:pointer;text-decoration:none;color:inherit;display:block}.w-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.3);border-color:transparent}.w-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.seats-tag{background:rgba(255,107,129,.12);color:var(--rs);font-size:10px;font-weight:700;padding:4px 10px;border-radius:6px;text-transform:uppercase}.w-title{font-size:16px;font-weight:700;color:var(--w);margin-bottom:6px;line-height:1.3}.w-desc{font-size:13px;color:var(--t);line-height:1.6;margin-bottom:12px}.w-tags{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}.w-tag{font-size:11px;font-weight:600;padding:4px 10px;border-radius:6px;background:var(--sf2);color:var(--t)}.w-foot{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid var(--bd)}.w-price{font-size:20px;font-weight:800;color:var(--w)}
.detail-wrap{max-width:1000px;margin:0 auto;padding:40px 24px 60px}.detail-back{font-size:13px;color:var(--ac2);font-weight:600;display:inline-flex;align-items:center;gap:4px;text-decoration:none;margin-bottom:16px}.detail-back:hover{text-decoration:underline}.detail-grid{display:grid;grid-template-columns:1fr 340px;gap:32px}.detail-emoji{font-size:48px}.detail-title{font-family:var(--serif);font-size:28px;font-weight:600;color:var(--w);margin:12px 0 8px;line-height:1.2}.detail-desc{color:var(--t);font-size:15px;line-height:1.7;margin-bottom:20px}.detail-stats{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:24px}.d-stat{background:var(--sf);border:1px solid var(--bd);border-radius:10px;padding:10px 16px}.d-stat-l{font-size:11px;color:var(--m);margin-bottom:2px}.d-stat-v{font-size:14px;font-weight:700}.purchase-card{position:sticky;top:80px;background:var(--sf);border:1px solid var(--bd);border-radius:16px;padding:24px}.p-price{font-size:32px;font-weight:800;color:var(--w)}.p-orig{font-size:16px;color:var(--m);text-decoration:line-through;margin-left:10px}.p-off{font-size:13px;font-weight:700;color:var(--gr);margin-top:4px}.p-info{margin-top:20px;font-size:13px;color:var(--m);line-height:2}.p-info strong{color:var(--w)}
.cur-mod{background:var(--sf);border:1px solid var(--bd);border-radius:12px;padding:16px 20px;margin-bottom:10px}.cur-mod h3{font-size:14px;font-weight:700;color:var(--w);margin-bottom:8px}.cur-lesson{display:flex;align-items:center;gap:8px;padding:6px 0;font-size:13px;color:var(--t)}.cur-lesson::before{content:'▶';color:var(--gr);font-size:10px}
.topic-item{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--sf);border:1px solid var(--bd);border-radius:10px;margin-bottom:8px;font-size:14px;color:var(--t)}.topic-check{color:var(--gr);font-weight:700}.seats-wrap{background:var(--sf2);border-radius:8px;padding:12px;margin-bottom:16px}.seats-top{display:flex;justify-content:space-between;font-size:12px;color:var(--m);margin-bottom:4px}.seats-bar{height:6px;background:var(--bd);border-radius:3px;overflow:hidden}.seats-fill{height:100%;background:var(--gr);border-radius:3px}
.cart-wrap{max-width:700px;margin:0 auto;padding:40px 24px 60px}.cart-item{display:flex;align-items:center;justify-content:space-between;padding:16px;background:var(--sf);border:1px solid var(--bd);border-radius:12px;margin-bottom:10px}.cart-left{display:flex;align-items:center;gap:12px}.cart-emoji{font-size:24px}.ci-title{font-weight:700;color:var(--w);font-size:14px}.ci-type{font-size:12px;color:var(--m)}.cart-right{display:flex;align-items:center;gap:16px}.ci-price{font-weight:800;color:var(--w);font-size:16px}.ci-remove{color:var(--rd);cursor:pointer;font-size:18px}.cart-summary{background:var(--sf);border:1px solid var(--bd);border-radius:12px;padding:20px;margin-top:16px}.cart-row{display:flex;justify-content:space-between;margin-bottom:12px}.cart-total{font-weight:800;color:var(--gr);font-size:22px}.cart-note{text-align:center;margin-top:8px;font-size:11px;color:var(--m)}
.auth-wrap{max-width:420px;margin:0 auto;padding:60px 24px}.auth-icon{font-size:40px;text-align:center}.auth-title{font-family:var(--serif);font-size:28px;font-weight:600;color:var(--w);text-align:center;margin:8px 0 4px}.auth-sub{text-align:center;color:var(--m);font-size:14px;margin-bottom:24px}.auth-tabs{display:flex;background:var(--sf);border-radius:50px;border:1px solid var(--bd);overflow:hidden;margin-bottom:24px}.auth-tab{flex:1;padding:10px 0;border:none;font-weight:700;font-size:13px;cursor:pointer;text-align:center;background:transparent;color:var(--m);transition:all .3s}.auth-tab.active{background:var(--ac);color:#fff}.auth-demo{text-align:center;font-size:12px;color:var(--m);margin-top:12px;padding:12px;background:var(--sf);border-radius:10px;border:1px solid var(--bd)}.auth-demo strong{color:var(--ac2)}
.form-group{margin-bottom:14px}.form-label{display:block;font-size:12px;font-weight:700;color:var(--m);margin-bottom:4px;text-transform:uppercase;letter-spacing:1px}.form-input,.form-select,.form-textarea{width:100%;padding:11px 16px;background:var(--sf);border:1px solid var(--bd);border-radius:10px;color:var(--w);font-size:14px;outline:none;transition:border-color .3s}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--ac)}.form-input::placeholder,.form-textarea::placeholder{color:var(--m)}.form-select option{background:var(--bg)}.form-textarea{min-height:100px;resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dash-wrap{max-width:1200px;margin:0 auto;padding:40px 24px 60px}.dash-title{font-family:var(--serif);font-size:28px;font-weight:600;color:var(--w);margin-bottom:4px}.dash-sub{color:var(--m);font-size:14px;margin-bottom:24px}.dash-tabs{display:flex;gap:6px;margin-bottom:24px;overflow-x:auto}.dash-tab{padding:8px 16px;border-radius:50px;font-size:13px;font-weight:700;cursor:pointer;background:var(--sf);color:var(--m);border:1px solid var(--bd);white-space:nowrap;transition:all .3s;text-decoration:none}.dash-tab:hover{border-color:var(--ac);color:var(--ac)}.dash-tab.active{background:var(--ac);color:#fff;border-color:var(--ac)}
.admin-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:24px}.a-stat{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:20px 16px}.a-stat-icon{font-size:20px;margin-bottom:6px}.a-stat-num{font-size:24px;font-weight:800}.a-stat-label{font-size:12px;color:var(--m)}.a-item{display:flex;justify-content:space-between;align-items:center;background:var(--sf);border:1px solid var(--bd);border-radius:10px;padding:14px 16px;margin-bottom:8px}.a-item-left{display:flex;align-items:center;gap:10px}.a-item-emoji{font-size:20px}.a-item-title{font-weight:700;color:var(--w);font-size:14px}.a-item-meta{font-size:11px;color:var(--m)}.a-item-right{display:flex;align-items:center;gap:12px}.a-delete{color:var(--rd);cursor:pointer;font-size:13px;font-weight:700}.add-card{background:var(--sf);border:1px solid var(--bd);border-radius:var(--r);padding:24px;margin-bottom:24px}.add-card h3{font-size:16px;font-weight:700;color:var(--w);margin-bottom:16px}
.profile-card{background:var(--sf);border:1px solid var(--bd);border-radius:16px;padding:24px;max-width:500px}.profile-head{display:flex;align-items:center;gap:16px;margin-bottom:20px}.profile-avatar{width:60px;height:60px;border-radius:50%;background:var(--ac);display:flex;align-items:center;justify-content:center;color:#fff;font-size:24px;font-weight:700}.profile-name{font-size:18px;font-weight:700;color:var(--w)}.profile-email{font-size:13px;color:var(--m)}.profile-info{font-size:14px;color:var(--t);line-height:2.2}
.empty{text-align:center;padding:60px 20px;color:var(--m)}.empty-icon{font-size:48px;margin-bottom:8px}.empty-title{font-size:16px;font-weight:700;color:var(--w);margin-bottom:4px}
.toast{position:fixed;top:80px;right:20px;z-index:200;padding:12px 24px;border-radius:12px;font-weight:700;font-size:14px;color:#fff;box-shadow:0 12px 40px rgba(0,0,0,.3);animation:slideIn .3s ease;display:none}.toast.show{display:block}.toast-ok{background:var(--gr)}.toast-err{background:var(--rd)}@keyframes slideIn{from{transform:translateX(50px);opacity:0}to{transform:translateX(0);opacity:1}}
.footer{background:var(--bg2);border-top:1px solid var(--bd);padding:40px 24px}.footer-inner{max-width:1280px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}.footer-brand{font-weight:800;font-size:18px;color:var(--w);margin-bottom:8px}.footer-brand span{color:var(--ac2)}.footer-desc{font-size:13px;color:var(--m);line-height:1.7}.footer-col h4{font-size:13px;font-weight:700;color:var(--w);margin-bottom:12px;text-transform:uppercase;letter-spacing:1px}.footer-col a{display:block;font-size:13px;color:var(--m);margin-bottom:8px;text-decoration:none;transition:color .3s}.footer-col a:hover{color:var(--w)}.footer-bottom{max-width:1280px;margin:24px auto 0;padding-top:24px;border-top:1px solid var(--bd);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}.footer-copy{font-size:12px;color:var(--m)}.rzp-badge{font-size:11px;color:var(--m);display:flex;align-items:center;gap:6px}.rzp-badge img{height:22px;opacity:.6}
@media(max-width:1024px){.stats-row,.admin-stats{grid-template-columns:repeat(2,1fr)}.detail-grid{grid-template-columns:1fr}.purchase-card{position:static}.footer-inner{grid-template-columns:1fr 1fr}}
@media(max-width:768px){.hero{padding:50px 16px 40px}.section{padding:0 16px 40px}.grid{grid-template-columns:1fr}.form-row{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr;gap:24px}.footer-bottom{flex-direction:column;text-align:center}.stats-row{grid-template-columns:repeat(2,1fr)}.nav-links{display:none}.nav-links.open{display:flex;position:absolute;top:64px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--bd);flex-direction:column;padding:20px 24px;gap:16px}.nav-ham{display:block;font-size:22px;cursor:pointer;color:var(--w);display:none}.filter-bar{overflow-x:auto;flex-wrap:nowrap;scrollbar-width:none;-ms-overflow-style:none}.filter-bar::-webkit-scrollbar{display:none}}

/* ── Extra fixes & additions ─────────────────────────── */
/* search input inside search-bar */
.search-bar .search-input { width:100%;padding:11px 16px 11px 40px;background:var(--sf);border:1px solid var(--bd);border-radius:50px;color:var(--w);font-size:14px;outline:none;transition:border-color .3s; }
.search-bar .search-input:focus { border-color:var(--ac); }
.search-bar .search-input::placeholder { color:var(--m); }

/* ── Hamburger visible on mobile ─ */
.nav-ham { display:none;background:none;border:none;font-size:22px;cursor:pointer;color:var(--w); }
@media(max-width:768px) { .nav-ham { display:block; } .nav-links { display:none; } .nav-links.open { display:flex;position:absolute;top:64px;left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--bd);flex-direction:column;padding:20px 24px;gap:16px;z-index:99; } }

/* ── Admin stat grid extends to 3-col ─ */
.admin-stats { grid-template-columns:repeat(3,1fr); }
@media(max-width:900px) { .admin-stats { grid-template-columns:repeat(2,1fr); } }
@media(max-width:500px) { .admin-stats { grid-template-columns:1fr 1fr; } }

/* ── Cart badge always flex when shown ─ */
.cart-badge { display:none; }

/* ── Nav user avatar ─ */
.nav-avatar { width:34px;height:34px;border-radius:50%;background:var(--ac);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:14px;text-decoration:none; }
.nav-logout { font-size:12px;color:var(--m);cursor:pointer; }
.nav-logout:hover { color:var(--rd); }
.nav-user { display:flex;align-items:center;gap:10px; }

/* ── btn-red ─ */
.btn-red { background:var(--rd);color:#fff; }
.btn-red:hover { opacity:.85;transform:translateY(-1px); }

/* ── Auth page ─ */
.auth-wrap { max-width:420px;margin:0 auto;padding:60px 24px 80px; }

/* ── detail-grid responsive ─ */
@media(max-width:768px) { .detail-grid { grid-template-columns:1fr; } .purchase-card { position:static; } }