/* Account and access surfaces share the learning workspace's visual language. */
.sf-auth,.sf-account{color-scheme:dark}
.sf-auth-layout{min-height:100dvh;display:grid;grid-template-columns:minmax(360px,.9fr) minmax(440px,1.1fr)}
.sf-auth-story{background:#181820;padding:42px 52px 30px;display:flex;flex-direction:column;color:var(--sf-ink)}
.sf-auth-brand{display:inline-flex;align-items:center;gap:12px;color:var(--sf-ink);font-weight:800;font-size:23px;letter-spacing:-.03em;text-decoration:none;align-self:flex-start}
.sf-auth-brand img{width:32px;height:32px;object-fit:contain;flex-shrink:0}
.sf-auth-story-content{margin:auto;max-width:420px;width:100%;padding:24px 0 48px}
.sf-auth-diagram{margin:0 -20px 38px;text-align:center}
.sf-auth-diagram svg{display:block;width:100%;max-height:290px}
.sf-diagram-caption{font-size:12px;color:#aaa4bc}
.sf-auth-story h2{font-size:clamp(28px,2.7vw,39px);line-height:1.2;font-weight:700;letter-spacing:-.035em;margin:0 0 18px;text-wrap:balance}
.sf-auth-story p{font-size:15px;line-height:1.75;color:#aaa4bc;max-width:360px;margin:0}
.sf-auth-story-footer{font-size:12px;color:#aaa4bc}
.sf-auth-main{background:var(--sf-bg);min-width:0;padding:42px 48px 28px;display:flex;flex-direction:column}
.sf-auth-back{display:inline-flex;gap:9px;align-items:center;align-self:flex-start;color:var(--sf-muted);font-size:13px;text-decoration:none}
.sf-auth-back:hover{color:var(--sf-primary)}
.sf-auth-back svg{width:17px;height:17px;transform:rotate(180deg);fill:none;stroke:currentColor;stroke-width:1.7}
.sf-auth-content{width:100%;max-width:390px;margin:auto;padding:62px 0}
.sf-auth-content h1{font-size:34px;line-height:1.2;letter-spacing:-.035em;margin:0 0 12px;font-weight:750;text-wrap:balance}
.sf-auth-description{color:var(--sf-muted);font-size:14px;line-height:1.7;margin:0 0 32px;overflow-wrap:anywhere}
.sf-auth-description strong{color:var(--sf-ink);font-weight:600}
.sf-auth-detail{font-size:13px;line-height:1.7;color:var(--sf-muted);margin:0 0 30px}
.sf-auth-content a:not(.sf-primary):not(.sf-secondary){color:var(--sf-primary);text-underline-offset:3px}
.sf-auth-form{display:flex;flex-direction:column;gap:20px}
.sf-field{display:flex;flex-direction:column;gap:8px}
.sf-field label{font-size:13px;font-weight:650;display:block}
.sf-field-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}
.sf-field-heading a{font-size:12px;text-decoration:none}
.sf-field-heading a:hover{text-decoration:underline}
.sf-field input{color-scheme:dark;width:100%;min-width:0;border:1px solid var(--sf-border);background:var(--sf-surface);color:var(--sf-ink);border-radius:9px;padding:13px 14px;font:inherit;font-size:14px;caret-color:var(--sf-primary);line-height:1.4}
.sf-field input::placeholder{color:var(--sf-muted)}
.sf-field input:hover{border-color:#696278}
.sf-field input:focus{outline:3px solid var(--sf-tint);border-color:var(--sf-primary)}
.sf-auth-submit{width:100%;min-height:46px;justify-content:center;gap:10px;margin-top:2px;text-decoration:none}
.sf-auth-submit svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7}
.sf-auth-divider{display:flex;align-items:center;gap:15px;margin:25px 0;color:var(--sf-muted);font-size:12px}
.sf-auth-divider::before,.sf-auth-divider::after{content:"";flex:1;height:1px;background:var(--sf-border)}
.sf-google-button{width:100%;justify-content:center;min-height:45px;gap:10px}
.sf-google-button svg{width:19px;height:19px}
.sf-google-button:disabled{color:var(--sf-muted);background:var(--sf-bg);cursor:not-allowed;opacity:1}
.sf-field-note{font-size:12px;line-height:1.6;color:var(--sf-muted);margin:10px 0 0}
.sf-auth-followup{font-size:13px;line-height:1.7;color:var(--sf-muted);text-align:center;margin:25px 0 0}
.sf-auth-followup a{font-weight:650;text-decoration:none;margin-left:3px}
.sf-auth-footer{color:var(--sf-muted);font-size:11px;text-align:center;margin:0}
.sf-auth-state-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;color:var(--sf-primary);background:var(--sf-tint);border-radius:14px;margin-bottom:24px}
.sf-auth-state-icon svg{width:23px;height:23px;fill:none;stroke:currentColor;stroke-width:1.7}
.sf-form-error{padding:13px 15px;border-radius:9px;background:#36222b;color:var(--sf-danger);font-size:13px;line-height:1.6;margin:0 0 20px;overflow-wrap:anywhere}
.sf-account-main{max-width:1260px;width:100%;margin-inline:auto}
.sf-account-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin:0 0 34px}
.sf-account-heading h1{font-size:34px;line-height:1.25;letter-spacing:-.035em;margin:0 0 8px}
.sf-account-heading p{color:var(--sf-muted);font-size:14px;line-height:1.7;margin:0}
.sf-account-heading>.sf-primary{flex-shrink:0}
.sf-account-tabs{display:flex;gap:26px;border-bottom:1px solid var(--sf-border);margin-bottom:5px}
.sf-account-tabs [role=tab]{background:transparent;border:0;border-bottom:2px solid transparent;padding:14px 0;color:var(--sf-muted);font:inherit;font-size:13px;font-weight:650;cursor:pointer;margin-bottom:-1px}
.sf-account-tabs [aria-selected=true]{border-color:var(--sf-primary);color:var(--sf-primary)}
.sf-account-tabs [role=tab]:hover{color:var(--sf-primary)}
.sf-account-section{display:grid;grid-template-columns:240px minmax(0,1fr);gap:38px;padding:32px 0;border-bottom:1px solid var(--sf-border)}
.sf-account-section:last-child{border-bottom:0}
.sf-section-intro h2{font-size:15px;font-weight:700;line-height:1.5;margin:0 0 7px}
.sf-section-intro p{color:var(--sf-muted);font-size:13px;line-height:1.65;margin:0;max-width:220px}
.sf-account-details{background:var(--sf-surface);border:1px solid var(--sf-border);border-radius:14px;padding:25px 28px;min-width:0}
.sf-account-identity{display:flex;align-items:center;gap:14px;padding-bottom:24px}
.sf-avatar-large{width:48px;height:48px;flex-shrink:0;font-size:18px}
.sf-account-details h3{font-size:14px;line-height:1.5;font-weight:650;margin:0 0 3px;overflow-wrap:anywhere}
.sf-account-details p{font-size:13px;color:var(--sf-muted);line-height:1.65;margin:0;overflow-wrap:anywhere}
.sf-details-list{margin:0;display:grid;gap:0}
.sf-details-list>div{padding:13px 0;border-top:1px solid #2b2c38;display:grid;grid-template-columns:145px minmax(0,1fr);gap:14px;font-size:13px;line-height:1.6}
.sf-details-list dt{color:var(--sf-muted)}
.sf-details-list dd{margin:0;color:var(--sf-ink);overflow-wrap:anywhere;font-variant-numeric:tabular-nums}
.sf-text-link{font-size:13px;font-weight:650;color:var(--sf-primary);display:inline-flex;align-items:center;gap:8px;margin-top:18px;text-decoration:none}
.sf-text-link:hover{text-decoration:underline;text-underline-offset:4px}
.sf-balance-line{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-bottom:24px}
.sf-balance-line>strong{font-size:30px;font-weight:700;letter-spacing:-.03em;color:var(--sf-primary);font-variant-numeric:tabular-nums}
.sf-subscription-empty{padding:20px 0;border-top:1px solid #2b2c38}
.sf-account-details .sf-account-notice{font-size:12px;border-radius:8px;background:var(--sf-bg);padding:12px 14px;line-height:1.7;color:var(--sf-muted);margin-top:8px}
.sf-account-actions{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.sf-account-actions button{font-size:12px}
.sf-status{display:inline-flex;font-size:11px;font-weight:650;line-height:1.6;padding:3px 9px;border-radius:6px;background:var(--sf-tint);color:var(--sf-primary)}
.sf-status-success{background:#213930;color:var(--sf-success)}
.sf-secondary.sf-danger{color:var(--sf-danger)}
.sf-payment-empty{display:flex;align-items:center;gap:15px;padding:6px 0}
.sf-payment-empty>.sf-icon{width:24px;height:24px;color:var(--sf-muted)}
.sf-table-scroll{overflow-x:auto}
.sf-payments-table{width:100%;border-collapse:collapse;font-size:12px;text-align:left;font-variant-numeric:tabular-nums}
.sf-payments-table th{font-size:11px;color:var(--sf-muted);font-weight:600;padding:0 16px 13px 0}
.sf-payments-table td{padding:14px 16px 14px 0;border-top:1px solid var(--sf-border)}
.sf-history-heading{padding:30px 0 24px}
.sf-history-heading h2{font-size:20px;letter-spacing:-.02em;margin:0 0 8px}
.sf-history-heading p{font-size:13px;color:var(--sf-muted);line-height:1.7;margin:0}
.sf-library-empty{border:1px solid var(--sf-border);background:var(--sf-surface);border-radius:14px;padding:64px 24px;text-align:center}
.sf-library-icon{display:flex;align-items:center;justify-content:center;width:60px;height:60px;border-radius:16px;background:var(--sf-tint);color:var(--sf-primary);margin:0 auto 22px}
.sf-library-icon .sf-icon{width:25px;height:25px}
.sf-library-empty h3{font-size:22px;letter-spacing:-.025em;margin:0 0 10px;font-weight:650}
.sf-library-empty p{color:var(--sf-muted);font-size:13px;line-height:1.75;max-width:365px;margin:0 auto 24px}
.sf-library-empty>.sf-primary,.sf-library-empty>.sf-secondary{display:inline-flex;gap:10px}
.history-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.history-item{background:var(--sf-surface);border:1px solid var(--sf-border);border-radius:14px;overflow:hidden;min-width:0}
.history-thumbnail{aspect-ratio:16/7;display:flex;width:100%;align-items:center;justify-content:center;border:0;background:#211e2c;color:var(--sf-primary);cursor:pointer;position:relative}
.history-thumbnail::before,.history-thumbnail::after{content:"";position:absolute;border:1px solid #514869;width:72px;height:72px;transform:rotate(25deg)}
.history-thumbnail::after{width:116px;height:116px;transform:rotate(65deg)}
.history-thumbnail:hover{background:#2c263b}
.history-play-icon{width:42px;height:42px;border-radius:50%;background:var(--sf-button);display:flex;align-items:center;justify-content:center;color:#211b36;z-index:1}
.history-content{padding:20px 20px 15px}
.history-prompt{margin:0 0 13px;font-size:14px;line-height:1.65;font-weight:600;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
.history-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:11px;line-height:1.6;color:var(--sf-muted);font-variant-numeric:tabular-nums}
.history-badge{background:var(--sf-tint);color:var(--sf-primary);border-radius:5px;font-size:10px;font-weight:650;padding:3px 7px}
.history-actions{padding:0 20px 20px;display:flex;align-items:center;gap:9px}
.history-action-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:34px;border:1px solid var(--sf-border);border-radius:7px;background:var(--sf-surface);color:var(--sf-ink);padding:6px 10px;font:inherit;font-size:11px;text-decoration:none;cursor:pointer}
.history-action-btn:hover{background:var(--sf-bg);color:var(--sf-primary)}
.history-action-btn .sf-icon{width:14px;height:14px}
.history-action-btn.delete{margin-left:auto;color:var(--sf-danger)}
.sf-account-dialog{border:0;background:var(--sf-surface);color:var(--sf-ink);border-radius:16px;width:calc(100% - 40px);max-width:490px;padding:26px;box-shadow:0 24px 80px #00000059;max-height:calc(100dvh - 48px);overflow:auto;font:inherit}
.sf-account-dialog::backdrop{background:#08090cc4}
.sf-account-dialog h2{font-size:20px;line-height:1.4;letter-spacing:-.025em;margin:0 0 16px}
.sf-account-dialog p{font-size:14px;color:var(--sf-muted);line-height:1.75;overflow-wrap:anywhere}
.sf-dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:20px}
.sf-dialog-heading h2{margin:0}
.sf-dialog-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:24px;flex-wrap:wrap}
.sf-video-dialog{max-width:800px}
.sf-video-dialog video{display:block;width:100%;max-height:55vh;border-radius:10px;background:#0b0b10}
.sf-account-dialog #videoPreviewPrompt{color:var(--sf-ink);margin:15px 0 8px}
.sf-loading-spinner{display:inline-block;width:18px;height:18px;flex-shrink:0;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:sf-account-spin .8s linear infinite}
.sf-library-empty .sf-loading-spinner{color:var(--sf-primary);margin-bottom:20px}
@keyframes sf-account-spin{to{transform:rotate(360deg)}}
.sf-visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.sf-auth [hidden],.sf-account [hidden]{display:none!important}
@media(max-width:1100px){.sf-auth-story{padding:36px}.sf-auth-main{padding:36px}.sf-account-section{grid-template-columns:190px minmax(0,1fr);gap:25px}.sf-account-details{padding:22px}.sf-details-list>div{grid-template-columns:120px minmax(0,1fr)}}
@media(max-width:850px){.sf-auth-layout{grid-template-columns:1fr}.sf-auth-story{display:none}.sf-auth-main{min-height:100dvh;padding:28px}.sf-auth-content{padding:54px 0}.sf-account-section{grid-template-columns:1fr;gap:18px}.sf-section-intro p{max-width:none}.sf-account-heading{align-items:flex-start}.sf-account-heading h1{font-size:30px}.sf-account-heading>.sf-primary{font-size:12px}.history-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.sf-auth-main{padding:24px}.sf-auth-content h1{font-size:30px}.sf-account-heading{display:block;margin-bottom:24px}.sf-account-heading>.sf-primary{margin-top:18px}.sf-account-heading p{font-size:13px}.sf-account-details{padding:20px}.sf-account-section{padding:25px 0}.sf-details-list>div{grid-template-columns:110px minmax(0,1fr);gap:12px}.history-grid{grid-template-columns:1fr}.sf-library-empty{padding:45px 20px}.sf-library-empty h3{font-size:20px}.sf-account-dialog{padding:22px}.sf-account-identity{align-items:flex-start}.sf-auth-form .g-recaptcha{transform:scale(.92);transform-origin:left top;margin-bottom:-6px}}
@media(prefers-reduced-motion:reduce){.sf-loading-spinner{animation:none}}