:root{--brand-sky: #0db0ff;--brand-blue: #067bfe;--brand-indigo: #323ad9;--brand-violet: #8330fe;--brand-red: #ce2039;--brand-navy: #0f1a33;--brand-gray: #b5b5b5;--brand-gradient: linear-gradient(90deg, var(--brand-sky), var(--brand-blue) 35%, var(--brand-indigo) 60%, var(--brand-violet));--brand-soft: #eceefe;--brand-violet-soft: #f1e9ff;--bg: #ffffff;--surface: #ffffff;--surface-2: #f3f5fb;--line: #dfe3ef;--fg: #0f1a33;--muted: #5b6480;--accent: #323ad9;--accent-fg: #ffffff;--ok: #128a5a;--ok-soft: #e1f5ec;--warn: #a06a00;--warn-soft: #fbf0d9;--error: #ce2039;--error-soft: #fde6ea;--track: #e4e7f3;--seg-a: #067bfe;--seg-b: #6a3cf0;--shadow: 0 1px 2px rgb(15 26 51 / 6%), 0 8px 24px rgb(15 26 51 / 7%);--font-display: "Lexend", "Be Vietnam Pro", system-ui, sans-serif;--font-body: "Be Vietnam Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;--r: 12px;--r-sm: 8px;color-scheme:light}*,*:before,*:after{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0}body{background:var(--bg);color:var(--fg);font:15px/1.55 var(--font-body);-webkit-font-smoothing:antialiased}h1,h2{font-family:var(--font-display);font-weight:600;letter-spacing:-.01em;line-height:1.2;margin:0;text-wrap:balance}p{margin:0}a{color:var(--accent)}.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}.muted{color:var(--muted)}.small{font-size:.82rem}.block{display:block}.label{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);font-weight:600}.optional{text-transform:none;letter-spacing:0;font-weight:400;margin-left:4px}.error-text{color:var(--error);font-size:.86rem}.app{min-height:100vh;display:flex;flex-direction:column}main{flex:1;width:100%;max-width:820px;margin:0 auto;padding-inline:16px;padding-block:28px 56px}.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:10;background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);padding-inline:16px;padding-block:10px;display:flex;flex-wrap:wrap;gap:10px 20px;align-items:center;justify-content:space-between}.brand{display:flex;gap:10px;align-items:center}.brand-mark{flex:none;width:48px;height:32px;object-fit:contain}.brand-text{display:flex;flex-direction:column;gap:3px;line-height:1.1}.wordmark-img{display:block;height:20px;width:auto}.wordmark{font-family:var(--font-display);font-weight:700;font-size:1.05rem;letter-spacing:-.01em}.wm-wi{color:var(--fg)}.wm-dot{color:var(--brand-red)}.wm-tech{background:linear-gradient(90deg,var(--brand-blue),var(--brand-violet));-webkit-background-clip:text;background-clip:text;color:transparent}.brand-name{font-size:.78rem;font-weight:500;color:var(--muted)}.grad-text{background:var(--brand-gradient);-webkit-background-clip:text;background-clip:text;color:transparent}.tagline{font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;font-weight:600;color:var(--accent)}.account{display:flex;gap:10px;align-items:center;min-width:0}.account img{width:32px;height:32px;border-radius:50%}.account-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}.account-name{font-weight:600;font-size:.88rem}.account-sub{font-size:.76rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:220px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font:600 .9rem var(--font-body);padding:9px 16px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--surface-2);color:var(--fg);cursor:pointer;text-decoration:none;white-space:nowrap}.btn:hover:not(:disabled){border-color:var(--accent)}.btn:focus-visible,.seg-toggle button:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn:disabled{opacity:.5;cursor:not-allowed}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-fg)}.btn.primary:hover:not(:disabled){filter:brightness(1.06)}.btn.ghost{background:transparent}.btn.sm{padding:5px 10px;font-size:.8rem}.btn.big{padding:13px 20px;font-size:1rem;width:100%}.row-actions{display:flex;gap:6px;align-items:center}.row-actions.wrap{flex-wrap:wrap}.pill{display:inline-flex;align-items:center;gap:4px;font-size:.74rem;font-weight:600;padding:2px 9px;border-radius:999px;white-space:nowrap;background:var(--surface-2);color:var(--muted)}.pill-ok{background:var(--ok-soft);color:var(--ok)}.pill-busy{background:var(--warn-soft);color:var(--warn)}.pill-busy:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 1.2s ease-in-out infinite}.pill-error{background:var(--error-soft);color:var(--error)}@keyframes pulse{50%{opacity:.3}}.alert{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;justify-content:space-between;background:var(--error-soft);color:var(--error);border-radius:var(--r-sm);padding:10px 12px;font-size:.88rem}.alert span{flex:1 1 260px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;box-shadow:var(--shadow)}.intake{display:flex;flex-direction:column;gap:22px}.hero{display:flex;flex-direction:column;gap:8px;max-width:34em}.hero h1{font-size:clamp(1.7rem,4.5vw,2.4rem)}.hero p{color:var(--muted);font-size:1.02rem}.form{display:flex;flex-direction:column;gap:22px}.field{display:flex;flex-direction:column;gap:8px;min-width:0}input[type=url],input:not([type]),input[type=text]{font:inherit;color:var(--fg);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:10px 12px;width:100%;min-width:0}input:focus{outline:2px solid color-mix(in srgb,var(--accent) 55%,transparent);outline-offset:0;border-color:var(--accent)}input[aria-invalid=true]{border-color:var(--error)}.seg-toggle{display:inline-flex;align-self:flex-start;background:var(--surface-2);border-radius:999px;padding:3px;gap:2px}.seg-toggle button{border:0;background:transparent;color:var(--muted);font:600 .84rem var(--font-body);padding:7px 14px;border-radius:999px;cursor:pointer}.seg-toggle button.is-on{background:var(--surface);color:var(--fg);box-shadow:var(--shadow)}.dropzone{position:relative;border:2px dashed var(--line);border-radius:var(--r);padding:34px 16px;display:flex;flex-direction:column;align-items:center;gap:4px;text-align:center;cursor:pointer;background:var(--surface-2);transition:border-color .15s,background .15s}.dropzone input{position:absolute;top:0;right:0;bottom:0;left:0;opacity:0;cursor:pointer}.dropzone:hover,.dropzone.is-over{border-color:var(--accent);background:var(--brand-soft)}.dropzone:focus-within{outline:2px solid var(--accent);outline-offset:2px}.dz-icon,.file-icon{width:60px;height:40px;background:url(/witech-mark-sm.png) center / contain no-repeat;margin-bottom:6px}.file-icon{flex:none;margin:0}.file-chip{display:flex;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--brand-soft)}.file-text{flex:1;min-width:0;display:flex;flex-direction:column}.file-text strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-text span{font-size:.8rem;color:var(--muted)}.link-field{display:flex;flex-direction:column;gap:6px}.switch{display:flex;gap:12px;align-items:flex-start;cursor:pointer}.switch input{position:absolute;opacity:0}.switch-ui{flex:none;width:40px;height:24px;margin-top:2px;border-radius:999px;background:var(--track);position:relative;transition:background .15s}.switch-ui:after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:var(--surface);box-shadow:0 1px 2px #00000040;transition:transform .15s}.switch input:checked+.switch-ui{background:var(--accent)}.switch input:checked+.switch-ui:after{transform:translate(16px)}.switch input:focus-visible+.switch-ui{outline:2px solid var(--accent);outline-offset:2px}.kids{border:0;margin:4px 0 0 52px;padding:0;display:flex;flex-wrap:wrap;gap:6px 18px;font-size:.9rem}.kids legend{font-size:.86rem;color:var(--muted);margin-bottom:6px;padding:0}.kids label{display:inline-flex;gap:6px;align-items:center;cursor:pointer}.kids input{accent-color:var(--accent)}.progress-card{display:flex;flex-direction:column;gap:14px}.progress-card h2{font-size:1.2rem}.bar{height:8px;border-radius:999px;background:var(--track);overflow:hidden}.bar>div{height:100%;background:var(--brand-gradient);transition:width .4s ease}.steps-track{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 18px}.steps-track li{display:flex;align-items:center;gap:7px;font-size:.88rem;color:var(--muted)}.st-dot{width:10px;height:10px;border-radius:50%;border:2px solid var(--line)}.st-active{color:var(--fg)!important;font-weight:600}.st-active .st-dot{border-color:var(--brand-violet);background:var(--brand-violet);animation:pulse 1.2s ease-in-out infinite}.st-done .st-dot{border-color:var(--accent);background:var(--accent)}.st-pct{font-size:.78rem;color:var(--brand-violet)}.job{display:flex;flex-direction:column;gap:16px}.job-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:12px}.job-head>div{display:flex;flex-direction:column;gap:4px;min-width:0}.job-head .label{overflow-wrap:anywhere}.job-head h1{font-size:clamp(1.4rem,3.6vw,1.9rem)}.done-card{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;background:var(--brand-soft);border-color:color-mix(in srgb,var(--accent) 35%,var(--line));box-shadow:none}.done-text{display:flex;flex-direction:column;gap:2px;min-width:0}.lessons{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.lesson{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:4px 14px;align-items:start;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm)}.lesson.is-pending{opacity:.7}.lesson-n{display:grid;place-items:center;min-width:34px;height:30px;border-radius:6px;background:var(--surface-2);font-size:.82rem;font-weight:600}.lesson-main{display:flex;flex-direction:column;gap:3px;min-width:0}.lesson-title{font-size:.98rem;overflow-wrap:anywhere}.lesson-sum{font-size:.86rem;color:var(--muted)}.lesson-meta{font-size:.76rem;color:var(--muted)}.lesson-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px}.lesson-video{grid-column:1 / -1;width:100%;max-height:440px;margin-top:8px;background:#000;border-radius:6px}.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translate(-50%);background:var(--fg);color:var(--bg);padding:9px 16px;border-radius:999px;font-size:.86rem;box-shadow:var(--shadow);z-index:50;max-width:calc(100vw - 32px)}@media (max-width: 640px){.card{padding:16px}.lesson{grid-template-columns:auto minmax(0,1fr)}.lesson-side{grid-column:2;flex-direction:row;flex-wrap:wrap;align-items:center;justify-content:flex-start}.kids{margin-left:0}.account-text{display:none}}@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important}}main.wide{max-width:1180px}.center{text-align:center}a.brand{color:inherit;text-decoration:none}.link-btn{border:0;background:none;padding:0;color:var(--accent);font:inherit;font-weight:600;text-decoration:underline;text-underline-offset:2px;cursor:pointer}.link-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.credit-pill{display:inline-flex;align-items:baseline;gap:5px;border:1px solid color-mix(in srgb,var(--accent) 40%,var(--line));background:var(--brand-soft);color:var(--fg);border-radius:999px;padding:5px 12px;font:600 .82rem var(--font-body);cursor:pointer;white-space:nowrap}.credit-pill .mono{font-size:.95rem;color:var(--accent)}.credit-pill:hover{border-color:var(--accent)}.credit-pill:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.estimate{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;justify-content:space-between;padding:10px 14px;border-radius:var(--r-sm);background:var(--surface-2);font-size:.9rem}.estimate.is-short{background:var(--error-soft);color:var(--error)}.inline-form{display:flex;gap:8px}.inline-form input{flex:1}.yt-card{display:flex;gap:14px;padding:12px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface-2);align-items:flex-start}.yt-card img{border-radius:6px;flex:none;max-width:40%;height:auto}.yt-card-text{display:flex;flex-direction:column;gap:4px;min-width:0}.yt-steps{margin:6px 0 0;padding-left:18px;display:flex;flex-direction:column;gap:6px;font-size:.88rem}.sheet-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#140f0a66;z-index:40;display:flex;justify-content:flex-end}.sheet{width:min(460px,100%);height:100%;overflow-y:auto;background:var(--surface);border-left:1px solid var(--line);padding:calc(20px + env(safe-area-inset-top,0px)) 20px calc(24px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;gap:16px;box-shadow:var(--shadow)}.sheet-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.sheet-head h2{font-size:1.6rem}.sheet-head h2 .mono{color:var(--accent)}.sheet-body{display:flex;flex-direction:column;gap:14px}.packages{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.package{display:flex;flex-direction:column;align-items:flex-start;gap:2px;padding:12px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--surface);color:var(--fg);font:inherit;text-align:left;cursor:pointer}.package:hover:not(:disabled){border-color:var(--accent);background:var(--brand-soft)}.package:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.pkg-credits{font-size:1.35rem;font-weight:600;color:var(--accent)}.pkg-unit{font-size:.74rem;color:var(--muted)}.pkg-price{margin-top:6px;font-weight:700;font-size:.92rem}.transfer{display:grid;grid-template-columns:auto minmax(0,1fr);gap:14px;padding:14px;border:1px solid color-mix(in srgb,var(--accent) 35%,var(--line));border-radius:var(--r);background:var(--brand-soft)}.transfer-qr img,.qr-missing{width:150px;height:150px;border-radius:8px;background:#fff;display:block}.qr-missing{display:grid;place-items:center;text-align:center;padding:10px;font-size:.8rem;color:#7a6a55}.transfer-info{margin:0;display:flex;flex-direction:column;gap:6px;font-size:.86rem;min-width:0}.transfer-info div{display:flex;flex-direction:column}.transfer-info dt{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}.transfer-info dd{margin:0;display:flex;gap:8px;align-items:baseline;flex-wrap:wrap;overflow-wrap:anywhere}.transfer-info .code{color:var(--brand-violet);letter-spacing:.04em}.transfer-note{grid-column:1 / -1}.pending-list{display:flex;flex-direction:column;gap:6px}.pending-row{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:6px 10px;border-radius:var(--r-sm);font-size:.86rem}.pending-row.is-on{background:var(--surface-2)}.ledger{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}.ledger li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid var(--line)}.ledger-main{display:flex;flex-direction:column;min-width:0}.ledger-main strong{font-size:.9rem;overflow-wrap:anywhere}.ledger-num{display:flex;flex-direction:column;align-items:flex-end;flex:none}.ledger-num .plus{color:var(--ok);font-weight:600}.ledger-num .minus{color:var(--fg);font-weight:600}.admin{display:flex;flex-direction:column;gap:16px}.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.stat{display:flex;flex-direction:column;gap:4px;padding:14px 16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm)}.stat strong{font-size:1.35rem}.admin-card{display:flex;flex-direction:column;gap:12px}.admin-card h2{font-size:1.1rem;display:flex;gap:8px;align-items:center}.admin-card-head{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center}.admin-card-head input{width:min(280px,100%)}.adjust{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr) minmax(0,2fr) auto;gap:8px}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.86rem}th{text-align:left;font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;padding:6px 10px;border-bottom:1px solid var(--line);white-space:nowrap}td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:top}th.num,td.num{text-align:right}td.strong{font-weight:600}td.actions{white-space:nowrap;text-align:right}td.actions>*+*{margin-left:6px}@media (max-width: 640px){.packages,.transfer{grid-template-columns:minmax(0,1fr)}.transfer-qr{justify-self:center}.stats,.adjust{grid-template-columns:minmax(0,1fr)}.credit-pill{padding:4px 10px}.yt-card{flex-direction:column}.yt-card img{max-width:100%}}.seg-toggle{max-width:100%;overflow-x:auto}.seg-toggle button{white-space:nowrap}.admin-row-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.admin-row-head h2{margin:0}.ai-check{margin-top:12px;display:grid;gap:8px}.ai-check p{margin:0;word-break:break-word}.ok-text{color:#0f7a4a;font-weight:600}.gift-form{margin-top:18px;padding-top:16px;border-top:1px solid var(--line, #e3e6f0);display:grid;gap:8px}.gift-row{display:flex;gap:8px}.gift-row input{flex:1;min-width:0;text-transform:uppercase;letter-spacing:.04em}.gift-form p{margin:0}.gift-create{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px 12px;align-items:end;margin:12px 0 16px}.gift-create label{display:grid;gap:4px}.gift-create .span-2{grid-column:span 2}@media (max-width: 720px){.gift-create{grid-template-columns:minmax(0,1fr)}.gift-create .span-2{grid-column:auto}}.pill-muted{background:#eef0f5;color:#5b6478}.gift-row input::placeholder{text-transform:none;letter-spacing:normal}.legal-links{display:flex;flex-wrap:wrap;justify-content:center;gap:4px 8px;padding:8px 16px 28px;font-size:.8rem;color:var(--muted)}.legal-links a{color:var(--muted);text-decoration:none}.legal-links a:hover{color:var(--accent);text-decoration:underline}.topup-btn{white-space:nowrap}@media (max-width: 640px){.account .account-text{display:none}}.sheet-wide{width:min(640px,100%)}.cust-email{font-size:1.15rem!important;word-break:break-all}.cust-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.cust-stats>div{background:var(--surface-2);border-radius:var(--r-sm);padding:10px 12px;display:grid;gap:2px}.cust-stats strong{font-size:1.15rem}.cust-section{display:grid;gap:8px;padding-top:14px;border-top:1px solid var(--line)}.cust-section h3{margin:0;font-size:1rem}.cust-section table{width:100%}.cust-adjust{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 10px}.cust-adjust label{display:grid;gap:4px}.cust-adjust .span-2{grid-column:span 2}.cust-actions{display:flex;gap:8px;flex-wrap:wrap}.num.pos{color:var(--ok)}.num.neg{color:var(--error)}tr.clickable{cursor:pointer}tr.clickable:hover td{background:var(--surface-2)}.pkg-days{font-size:.72rem;color:var(--muted)}.pkg-edit input{width:100%;min-width:70px}.pkg-edit td.num input{text-align:right}.warn-text{color:var(--warn);margin:0}.pkg-label{font-size:.74rem;font-weight:600;color:var(--fg);text-transform:uppercase;letter-spacing:.04em}.update-bar{position:fixed;left:50%;bottom:20px;transform:translate(-50%);z-index:50;display:flex;align-items:center;gap:12px;padding:10px 12px 10px 16px;background:var(--brand-navy);color:#fff;border-radius:999px;box-shadow:var(--shadow);font-size:.9rem;max-width:calc(100% - 32px)}.my-videos{margin-top:32px;display:grid;gap:12px}.my-videos h2{margin:0;font-size:1.25rem}.mv-list{display:grid;gap:8px}.mv-card{border:1px solid var(--line);border-radius:var(--r);background:var(--surface)}.mv-card.is-open{box-shadow:var(--shadow)}.mv-head{width:100%;display:flex;align-items:center;gap:12px;padding:14px 16px;background:none;border:0;text-align:left;cursor:pointer;color:inherit;font:inherit}.mv-title{flex:1;min-width:0;display:grid;gap:2px}.mv-title strong{overflow-wrap:anywhere}.mv-chevron{color:var(--muted);transition:transform .15s}.mv-card.is-open .mv-chevron{transform:rotate(180deg)}.mv-body{padding:0 16px 16px;display:grid;gap:10px}.mv-actions{display:flex;flex-wrap:wrap;gap:8px}.mv-lessons{margin:0;padding-left:1.4rem;display:grid;gap:6px}.mv-lessons li{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}.mv-time{min-width:92px}.mv-ltitle{flex:1;min-width:180px}.mv-links{display:flex;gap:10px}.invite-steps{margin:8px 0 4px;padding-left:20px;display:grid;gap:4px;color:var(--muted, #5b6275)}.invite-create .span-3{grid-column:1 / -1}.invite-create textarea{width:100%;font:inherit;padding:8px 10px;border:1px solid var(--line, #d7dbe7);border-radius:8px;resize:vertical;background:var(--surface, #fff);color:inherit}tr.row-new td{background:color-mix(in srgb,var(--accent, #2f6bff) 8%,transparent)}.hotline-link{color:var(--accent);text-decoration:none;white-space:nowrap}.legal-links a.hotline-link{color:var(--accent)}.hotline-link:hover{text-decoration:underline}