/* HT Deutsch · trang Tài khoản & bán hàng (thiết kế 2026-10) */
:root{--neon:#5EEAD4;--pl:#9D8CFF;--pink:#FF7AA8;--ok:#5EEAD4}
body.tk{min-height:100vh;color:var(--ink2);font-family:var(--f-b)}
.ht-auth-hidden,.ht-payment-hidden{display:none!important}
.tk-top{position:sticky;top:0;z-index:30;display:flex;align-items:center;gap:14px;padding:12px max(16px,env(safe-area-inset-left));background:rgba(5,7,20,.55);backdrop-filter:blur(18px) saturate(1.3);-webkit-backdrop-filter:blur(18px) saturate(1.3);border-bottom:1px solid rgba(150,170,255,.12)}
.tk-brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;margin-right:auto}
.tk-brand .sun{width:32px;height:32px;border-radius:50%;background:radial-gradient(circle at 34% 30%,#FFF3C8 0,#FFB347 30%,#E0661A 70%,#7A2E05 100%);box-shadow:0 0 20px rgba(255,179,71,.55);flex:none}
.tk-brand b{display:block;font-family:var(--f-d);font-size:19px;line-height:1.1}
.tk-brand small{display:block;font-size:10.5px;color:var(--gold)}
.tk-nav{display:flex;gap:2px}
.tk-nav a{padding:9px 14px;border-radius:999px;color:var(--ink2);text-decoration:none;font-weight:700;font-size:14px}
.tk-nav a:hover{background:rgba(124,150,255,.12);color:#fff}
.tk-cta-sm{padding:10px 18px;border-radius:999px;border:1px solid rgba(255,179,71,.55);color:#FFE6A3!important;text-decoration:none;font-weight:800;font-size:14px}
.tk.is-auth .tk-cta-sm{display:none}
.tk-wrap{width:min(1160px,calc(100% - 32px));margin:0 auto}
.tk-kick{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:14px;font-weight:700;margin:0}
.tk-kick .dot{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px var(--ok)}
.tk-flash{margin-top:18px;padding:14px 18px;border-radius:16px;background:rgba(255,179,71,.1);border:1px solid rgba(255,179,71,.4);color:#FFE6A3;font-weight:600}
.tk-member{display:none;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-top:18px;padding:16px 20px;border-radius:18px;background:linear-gradient(90deg,rgba(94,234,212,.18),rgba(94,234,212,.1));border:1px solid rgba(94,234,212,.5);color:#C9F7E5;text-decoration:none;font-weight:700}
.tk-member b{color:#05060f;background:linear-gradient(90deg,#7FF0C6,#5EEAD4);padding:10px 18px;border-radius:999px}
.tk.is-member .tk-member{display:flex}

/* hero */
.tk-hero{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;padding:52px 0 20px}
.tk-hero h1{font-family:var(--f-d);font-weight:700;color:#fff;font-size:clamp(40px,6.4vw,74px);line-height:1.02;letter-spacing:-.02em;margin:16px 0 0}
.tk-hero h1 em{font-style:normal;background:linear-gradient(90deg,#FFE3A6,#FFB347 30%,#FF7AA8 55%,#9D8CFF 80%,#5EEAD4);-webkit-background-clip:text;background-clip:text;color:transparent;background-size:200% 100%;animation:tk-shine 8s linear infinite}
@keyframes tk-shine{to{background-position:-200% 0}}
.tk-lead{font-size:17.5px;line-height:1.6;max-width:600px;margin:18px 0 0}
.tk-lead b{color:#fff}
.tk-stats{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:10px;padding:0;margin:26px 0 0;max-width:640px}
.tk-stats li{padding:14px 14px 12px;border-radius:18px;background:rgba(16,22,52,.6);border:1px solid rgba(150,170,255,.14)}
.tk-stats b{display:block;font-family:var(--f-d);color:#fff;font-size:28px;line-height:1}
.tk-stats span{display:block;margin-top:6px;font-size:12.5px;color:var(--ink3);line-height:1.3}
.tk-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tk-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:54px;padding:0 26px;border-radius:999px;border:1px solid rgba(160,180,255,.3);background:transparent;color:#fff!important;font:800 15.5px var(--f-b);text-decoration:none;cursor:pointer;transition:transform .12s,box-shadow .2s,border-color .2s}
.tk-btn:hover{border-color:var(--gold)}
.tk-btn:active{transform:scale(.97)}
.tk-btn.gold{border:0;background:linear-gradient(180deg,#FFE3A6,#FFB347);color:#1A1204!important;box-shadow:0 16px 40px -14px rgba(255,179,71,.8)}
.tk-btn.ghost{background:rgba(255,255,255,.03)}
.tk-btn:disabled{opacity:.55;cursor:wait}
.tk-trust{margin:14px 0 0;color:var(--ink3);font-size:13.5px}

/* thẻ đăng nhập */
.tk-card{position:sticky;top:90px;padding:28px;border-radius:28px;background:radial-gradient(120% 90% at 100% 0%,rgba(94,234,212,.12),transparent 55%),linear-gradient(170deg,rgba(24,32,72,.96),rgba(11,16,38,.97));border:1px solid rgba(150,170,255,.22);box-shadow:0 40px 100px -30px rgba(0,0,0,.8)}
.tk-card h2{font-family:var(--f-d);color:#fff;font-size:28px;margin:0 0 16px}
.tk-tabs{display:flex;gap:4px;padding:4px;border-radius:999px;background:rgba(5,8,22,.6);border:1px solid rgba(150,170,255,.16);margin-bottom:16px}
.tk-tabs button{flex:1;min-height:44px;border:0;border-radius:999px;background:transparent;color:var(--ink2);font:700 15px var(--f-b);cursor:pointer}
.tk-tabs button.active{background:var(--gold);color:#1A1204}
.tk-label{display:block;color:#DDE3F6;font-weight:600;font-size:14px;margin:14px 0 6px}
.tk-input,.tk-chooser select{width:100%;height:52px;border-radius:14px;border:1px solid rgba(160,180,255,.25);background:rgba(5,8,22,.6);color:#fff;font:500 16px var(--f-b);padding:0 16px}
.tk-input::placeholder{color:#7E8BB5}
.tk-input:focus,.tk-chooser select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 4px rgba(255,179,71,.14)}
.tk-primary{width:100%;min-height:54px;margin-top:18px;border:0;border-radius:999px;background:linear-gradient(180deg,#FFE3A6,#FFB347);color:#1A1204;font:800 16px var(--f-b);cursor:pointer;box-shadow:0 12px 30px -10px rgba(255,179,71,.7)}
.tk-primary:disabled{opacity:.6;cursor:wait}
.tk-row2{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin-top:6px}
.tk-row2 small{color:var(--ink3)}
.tk-link{background:none;border:0;color:var(--gold);font:700 14.5px var(--f-b);cursor:pointer;padding:10px 0;min-height:44px}
.tk-google{width:100%;min-height:48px;margin-top:10px;border-radius:999px;border:1px solid rgba(160,180,255,.28);background:transparent;color:#fff;font:700 15px var(--f-b);cursor:pointer}
.tk-small{color:var(--ink3);font-size:13.5px;line-height:1.55}
.tk-notice{padding:12px 14px;border-radius:14px;background:rgba(255,179,71,.1);border:1px solid rgba(255,179,71,.35);color:#FFE6A3;margin-bottom:12px}
.ht-auth-status{margin-top:16px;padding:12px 14px;border-radius:14px;background:rgba(5,8,22,.45);border:1px solid rgba(150,170,255,.12);font-size:14px;color:var(--ink2)}
.ht-auth-status.success{border-color:rgba(94,234,212,.4);color:#B9F5DD}
.ht-auth-status.error{border-color:rgba(255,92,110,.5);color:#FFC0C8}
.tk-hello{display:flex;gap:14px;align-items:center}
.tk-hello b{color:#fff;font-size:18px}
.tk-hello p{margin:2px 0 0}
.tk-av{width:52px;height:52px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;background:radial-gradient(circle at 35% 30%,#fff,#5EEAD4 40%,#3a5fd0);box-shadow:0 0 24px rgba(94,234,212,.4)}
.tk-box{margin:16px 0 12px;padding:16px;border-radius:18px;background:rgba(5,8,22,.45);border:1px solid rgba(150,170,255,.14)}
.tk-box b{display:block;color:#fff}
.tk-box small{display:block;color:var(--ink3);margin-top:4px;line-height:1.5}
.tk-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tk-act{min-height:44px;padding:0 16px;border-radius:999px;border:1px solid rgba(160,180,255,.28);background:transparent;color:#fff;font:700 14px var(--f-b);cursor:pointer}
.tk-act:hover{border-color:var(--neon)}
.tk-act.danger{border-color:rgba(228,80,63,.55);color:#FFB3A8}

/* 3 bước */
.tk-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:40px;counter-reset:s}
.tk-step{position:relative;display:flex;gap:14px;align-items:center;padding:18px 20px;border-radius:22px;background:rgba(16,22,52,.6);border:1px solid rgba(150,170,255,.14);transition:border-color .3s,background .3s}
.tk-step .n{flex:none;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--f-d);font-weight:700;font-size:20px;color:#fff;background:rgba(255,255,255,.06);border:1px solid rgba(150,170,255,.25)}
.tk-step b{display:block;color:#fff;font-size:16.5px}
.tk-step small{display:block;color:var(--ink3);font-size:13px;line-height:1.45;margin-top:2px}
.tk-step.s1{border-color:rgba(255,179,71,.5)}.tk-step.s1 .n{background:var(--gold);color:#1a1204;border:0}
.tk.is-auth .tk-step.s1{border-color:rgba(94,234,212,.45)}.tk.is-auth .tk-step.s1 .n{background:var(--ok);color:#05060f;font-size:0}.tk.is-auth .tk-step.s1 .n:after{content:"✓";font-size:20px}
.tk.is-auth .tk-step.s2{border-color:rgba(255,179,71,.5)}.tk.is-auth .tk-step.s2 .n{background:var(--gold);color:#1a1204;border:0}
.tk.is-member .tk-step.s2,.tk.is-member .tk-step.s3{border-color:rgba(94,234,212,.45)}
.tk.is-member .tk-step.s2 .n,.tk.is-member .tk-step.s3 .n{background:var(--ok);color:#05060f;border:0;font-size:0}
.tk.is-member .tk-step.s2 .n:after,.tk.is-member .tk-step.s3 .n:after{content:"✓";font-size:20px}

/* bảng giá + thanh toán */
.tk-pay{display:grid;grid-template-columns:.9fr 1.1fr;gap:32px;align-items:start;margin-top:70px;scroll-margin-top:90px}
.tk-pay h2,.tk-feat h2,.tk-faq h2{font-family:var(--f-d);font-weight:700;color:#fff;font-size:clamp(32px,4.6vw,52px);line-height:1.05;margin:12px 0 0;letter-spacing:-.015em}
.tk-prices{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}
.tk-price{position:relative;padding:20px;border-radius:22px;border:1px solid rgba(255,179,71,.4);background:radial-gradient(120% 100% at 100% 0%,rgba(255,179,71,.18),transparent 60%),rgba(5,8,22,.5);overflow:hidden}
.tk-price small{display:block;letter-spacing:.12em;font-size:11.5px;color:var(--gold);font-weight:800}
.tk-price b{display:block;font-family:var(--f-d);font-weight:700;font-size:clamp(32px,4.4vw,44px);color:#fff;line-height:1.1;margin:8px 0 4px}
.tk-price span{font-size:13.5px;color:var(--ink3)}
.tk-checks{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px}
.tk-checks li{position:relative;padding-left:32px;line-height:1.5}
.tk-checks li:before{content:"✓";position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:rgba(94,234,212,.18);color:var(--ok);font-weight:900;font-size:13px;display:flex;align-items:center;justify-content:center}
.tk-paybox{padding:26px;border-radius:28px;background:linear-gradient(170deg,rgba(24,32,72,.96),rgba(11,16,38,.97));border:1px solid rgba(150,170,255,.22);box-shadow:0 40px 100px -30px rgba(0,0,0,.8)}
.tk-paybox-h{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap}
.tk-paybox-h h3{margin:0;font-family:var(--f-d);color:#fff;font-size:24px}
.ht-payment-status{display:inline-block;padding:7px 14px;border-radius:999px;background:rgba(150,170,255,.14);color:#fff;font-weight:700;font-size:13px}
.ht-payment-status.active{background:rgba(94,234,212,.2);color:#9EF0C9}
.ht-payment-status.pending{background:rgba(255,179,71,.18);color:#FFE6A3;animation:tk-blink 1.6s ease-in-out infinite}
@keyframes tk-blink{50%{opacity:.6}}
.tk-msg{margin:14px 0 0;padding:14px 16px;border-radius:16px;background:rgba(5,8,22,.45);border:1px solid rgba(150,170,255,.14);color:#fff;line-height:1.55}
.tk-msg[data-kind="ok"]{border-color:rgba(94,234,212,.45);background:rgba(94,234,212,.08)}
.tk-msg[data-kind="pending"]{border-color:rgba(255,179,71,.4);background:rgba(255,179,71,.07)}
.tk-msg[data-kind="error"]{border-color:rgba(255,92,110,.5);background:rgba(255,92,110,.07)}
.tk-chooser{margin:14px 0 0;padding:16px;border-radius:18px;background:rgba(5,8,22,.45);border:1px solid rgba(150,170,255,.14)}
.tk-chooser label{display:block;color:#fff;font-weight:700;margin-bottom:8px}
.tk-chooser p{margin:8px 0 0}
.tk-info:empty{display:none}
.tk-info{margin-top:14px;padding:16px 18px;border-radius:18px;background:rgba(5,8,22,.45);border:1px solid rgba(150,170,255,.14);overflow-wrap:anywhere}
.tk-info p{margin:6px 0;color:var(--ink2)}
.tk-info strong{color:var(--gold)}
.ht-vietqr{display:block;width:min(100%,320px);height:auto;margin:16px auto 6px;padding:12px;border-radius:18px;background:#fff;box-shadow:0 20px 50px -20px rgba(94,234,212,.6)}

/* tính năng */
.tk-feat{margin-top:80px}
.tk-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:26px}
.tk-grid article{--c:#5EEAD4;position:relative;padding:22px 20px;border-radius:24px;background:radial-gradient(120% 100% at 100% 0%,color-mix(in srgb,var(--c) 18%,transparent),transparent 60%),linear-gradient(170deg,#161C42,#0B1030);border:1px solid rgba(255,255,255,.07);overflow:hidden;transition:transform .25s,border-color .25s}
.tk-grid article:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--c) 60%,transparent)}
.tk-grid i{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:50%;font-style:normal;font-size:24px;background:radial-gradient(circle at 32% 30%,rgba(255,255,255,.9),var(--c) 45%,color-mix(in srgb,var(--c) 40%,#05060f));box-shadow:0 0 26px color-mix(in srgb,var(--c) 55%,transparent)}
.tk-grid b{display:block;margin-top:14px;font-family:var(--f-d);color:#fff;font-size:19px}
.tk-grid span{display:block;margin-top:6px;font-size:14px;line-height:1.55}

/* hỏi đáp */
.tk-faq{margin:80px auto 0;max-width:820px;scroll-margin-top:90px}
.tk-faq details{margin-top:12px;border-radius:18px;background:rgba(16,22,52,.6);border:1px solid rgba(150,170,255,.14);overflow:hidden}
.tk-faq details:first-of-type{margin-top:24px}
.tk-faq summary{list-style:none;cursor:pointer;padding:18px 54px 18px 20px;color:#fff;font-weight:700;font-size:16.5px;position:relative}
.tk-faq summary::-webkit-details-marker{display:none}
.tk-faq summary:after{content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:rgba(255,255,255,.06);display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:20px;transition:transform .2s}
.tk-faq details[open] summary:after{content:"–"}
.tk-faq details[open]{border-color:rgba(255,179,71,.35)}
.tk-faq details p{margin:0;padding:0 20px 18px;line-height:1.6}
.tk-faq a{color:var(--gold)}
.tk-foot{text-align:center;color:var(--ink3);font-size:13.5px;padding:70px 16px 40px}

@media (max-width:980px){.tk-hero{grid-template-columns:1fr;gap:28px}.tk-card{position:static}.tk-pay{grid-template-columns:1fr}.tk-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:720px){.tk-nav{display:none}.tk-stats{grid-template-columns:repeat(2,1fr)}.tk-steps{grid-template-columns:1fr}.tk-hero{padding-top:30px}.tk-card,.tk-paybox{padding:20px}.tk-btn{flex:1}}
@media (max-width:480px){.tk-prices{grid-template-columns:1fr}.tk-grid{grid-template-columns:1fr}.tk-brand small{display:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* học thử */
.tk-try{margin-top:80px}
.tk-try h2{font-family:var(--f-d);font-weight:700;color:#fff;font-size:clamp(32px,4.6vw,52px);line-height:1.05;margin:12px 0 0;letter-spacing:-.015em}
.tk-try .tk-lead{max-width:720px}
.tk-try-g{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:12px;margin-top:22px}
.tk-try-g a{--c:#5EEAD4;display:flex;flex-direction:column;gap:4px;padding:16px 16px 16px 18px;border-radius:20px;border:1px solid rgba(150,170,255,.14);border-left:4px solid var(--c);background:linear-gradient(170deg,rgba(20,28,60,.92),rgba(11,16,39,.92));text-decoration:none;color:var(--ink2);transition:transform .15s,border-color .15s}
.tk-try-g a:hover{transform:translateY(-2px);border-color:var(--c)}
.tk-try-g small{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--c)}
.tk-try-g b{font-family:var(--f-d);color:#fff;font-size:19px;line-height:1.2}
.tk-try-g span{font-size:13.5px;line-height:1.45}