.yf-app{--yf-bg:#f4f7fb;--yf-card:#fff;--yf-text:#172033;--yf-muted:#657084;--yf-line:#dce3ed;--yf-accent:#0f3b64;--yf-accent2:#1167a8;--yf-ok:#147a46;--yf-warn:#a86100;--yf-danger:#b42318;--yf-radius:14px;max-width:1280px;margin:0 auto;padding:12px;color:var(--yf-text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;box-sizing:border-box}.yf-app *{box-sizing:border-box}.yf-app button,.yf-app input,.yf-app select,.yf-app textarea{font:inherit}.yf-app button{touch-action:manipulation}.yf-boot{min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:var(--yf-card);border:1px solid var(--yf-line);border-radius:var(--yf-radius)}.yf-spinner{width:30px;height:30px;border:3px solid var(--yf-line);border-top-color:var(--yf-accent2);border-radius:50%;animation:yf-spin .8s linear infinite}@keyframes yf-spin{to{transform:rotate(360deg)}}.yf-shell{display:grid;grid-template-rows:auto auto 1fr;min-height:72vh;background:var(--yf-bg);border:1px solid var(--yf-line);border-radius:18px;overflow:hidden}.yf-header{position:sticky;top:0;z-index:20;display:flex;gap:10px;align-items:center;padding:10px 12px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--yf-line);backdrop-filter:blur(10px)}.yf-brand{font-weight:800;letter-spacing:.04em;color:var(--yf-accent);white-space:nowrap}.yf-project-select{min-width:0;flex:1;max-width:440px}.yf-select,.yf-input,.yf-textarea{width:100%;border:1px solid #c9d3df;border-radius:10px;background:#fff;color:var(--yf-text);padding:10px 11px;min-height:42px}.yf-textarea{min-height:92px;resize:vertical}.yf-select:focus,.yf-input:focus,.yf-textarea:focus{outline:2px solid rgba(17,103,168,.18);border-color:var(--yf-accent2)}.yf-nav{display:flex;overflow-x:auto;background:#fff;border-bottom:1px solid var(--yf-line);scrollbar-width:none}.yf-nav::-webkit-scrollbar{display:none}.yf-nav-btn{appearance:none;border:0;background:transparent;padding:12px 16px;white-space:nowrap;color:var(--yf-muted);font-weight:700;border-bottom:3px solid transparent}.yf-nav-btn.is-active{color:var(--yf-accent2);border-bottom-color:var(--yf-accent2)}.yf-main{padding:14px;min-width:0}.yf-grid{display:grid;gap:12px}.yf-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.yf-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.yf-card{background:var(--yf-card);border:1px solid var(--yf-line);border-radius:var(--yf-radius);padding:14px;box-shadow:0 2px 8px rgba(22,36,58,.035)}.yf-card h2,.yf-card h3{margin:0 0 10px}.yf-card h2{font-size:1.12rem}.yf-card h3{font-size:1rem}.yf-muted{color:var(--yf-muted);font-size:.92em}.yf-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.yf-between{display:flex;gap:10px;align-items:center;justify-content:space-between}.yf-stack{display:flex;flex-direction:column;gap:8px}.yf-btn{appearance:none;border:1px solid var(--yf-accent2);border-radius:10px;background:var(--yf-accent2);color:#fff;padding:9px 13px;min-height:40px;font-weight:700;cursor:pointer}.yf-btn:hover{filter:brightness(.96)}.yf-btn:disabled{opacity:.5;cursor:not-allowed}.yf-btn-secondary{background:#fff;color:var(--yf-accent2)}.yf-btn-ghost{border-color:var(--yf-line);background:#fff;color:var(--yf-text)}.yf-btn-danger{border-color:var(--yf-danger);background:var(--yf-danger);color:#fff}.yf-btn-small{padding:6px 9px;min-height:32px;font-size:.88rem}.yf-badge{display:inline-flex;align-items:center;border-radius:999px;padding:3px 8px;font-size:.78rem;font-weight:700;background:#eaf0f6;color:#42536a}.yf-badge-ok{background:#e8f6ef;color:var(--yf-ok)}.yf-badge-warn{background:#fff2d9;color:var(--yf-warn)}.yf-badge-danger{background:#fdecea;color:var(--yf-danger)}.yf-badge-accent{background:#e5f2fb;color:#0a5c96}.yf-alert{border-left:4px solid var(--yf-accent2);background:#edf6fc;border-radius:10px;padding:10px 12px}.yf-alert.warning{border-color:var(--yf-warn);background:#fff8e8}.yf-alert.high{border-color:var(--yf-danger);background:#fff0ef}.yf-alert.success{border-color:var(--yf-ok);background:#edf9f2}.yf-notice{padding:12px;border:1px solid var(--yf-line);border-radius:10px;background:#fff}.yf-danger{border-color:#f1b6b1;color:var(--yf-danger);background:#fff5f4}.yf-list{display:flex;flex-direction:column;gap:8px}.yf-item{border:1px solid var(--yf-line);border-radius:11px;padding:10px 11px;background:#fff}.yf-item.is-done{opacity:.72}.yf-item-title{font-weight:750}.yf-meta{display:flex;gap:6px 10px;flex-wrap:wrap;color:var(--yf-muted);font-size:.86rem;margin-top:4px}.yf-form{display:grid;gap:10px}.yf-form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.yf-field{display:flex;flex-direction:column;gap:5px}.yf-field>span{font-size:.84rem;font-weight:700;color:#445269}.yf-field-wide{grid-column:1/-1}.yf-checkboxes{display:flex;gap:8px;flex-wrap:wrap}.yf-check{display:flex;align-items:center;gap:5px;border:1px solid var(--yf-line);border-radius:9px;padding:7px 9px;background:#fff}.yf-modal-backdrop{position:fixed;inset:0;background:rgba(13,26,42,.5);z-index:99990;display:flex;align-items:center;justify-content:center;padding:16px}.yf-modal{width:min(720px,100%);max-height:90vh;overflow:auto;background:#fff;border-radius:16px;padding:16px;box-shadow:0 20px 80px rgba(0,0,0,.28)}.yf-modal h2{margin:0}.yf-toast-wrap{position:fixed;right:14px;bottom:14px;z-index:99999;display:flex;flex-direction:column;gap:8px;max-width:min(420px,calc(100vw - 28px))}.yf-toast{background:#172033;color:#fff;border-radius:10px;padding:10px 12px;box-shadow:0 8px 30px rgba(0,0,0,.22)}.yf-toast.error{background:#8f211a}.yf-toast.success{background:#17653f}.yf-auth{max-width:520px;margin:24px auto}.yf-auth-tabs{display:flex;margin-bottom:10px}.yf-auth-tabs button{flex:1;border:1px solid var(--yf-line);background:#fff;padding:10px}.yf-auth-tabs button.is-active{background:var(--yf-accent);color:#fff}.yf-table-wrap{overflow:auto}.yf-table{width:100%;border-collapse:collapse;min-width:640px}.yf-table th,.yf-table td{border-bottom:1px solid var(--yf-line);padding:9px;text-align:left;vertical-align:top}.yf-table th{font-size:.83rem;color:var(--yf-muted);background:#f8fafc}.yf-chat-layout{display:grid;grid-template-columns:220px 1fr;gap:12px;min-height:520px}.yf-channels{background:#fff;border:1px solid var(--yf-line);border-radius:12px;padding:8px}.yf-channel-btn{width:100%;text-align:left;border:0;background:transparent;border-radius:8px;padding:9px;cursor:pointer}.yf-channel-btn.is-active{background:#eaf4fb;color:#0a5c96;font-weight:700}.yf-chat-panel{display:grid;grid-template-rows:1fr auto;border:1px solid var(--yf-line);border-radius:12px;background:#fff;min-width:0;max-height:650px}.yf-messages{overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}.yf-msg{max-width:86%;border:1px solid var(--yf-line);border-radius:12px;padding:9px 10px;background:#f8fafc}.yf-msg.mine{align-self:flex-end;background:#eaf5fc}.yf-msg.system{align-self:center;max-width:95%;background:#f3f4f6;color:var(--yf-muted);font-size:.86rem}.yf-msg-head{display:flex;gap:8px;align-items:center;font-size:.8rem;color:var(--yf-muted);margin-bottom:4px}.yf-msg-body{white-space:pre-wrap;word-break:break-word}.yf-chat-compose{border-top:1px solid var(--yf-line);padding:10px}.yf-avatars{display:flex;gap:5px;align-items:center}.yf-avatar{width:30px;height:30px;border-radius:50%;object-fit:cover;background:#e5ebf2}.yf-status-dot{width:9px;height:9px;border-radius:50%;background:#8390a3;display:inline-block}.yf-status-dot.working{background:#16a05b}.yf-status-dot.break{background:#d59a16}.yf-status-dot.material_wait,.yf-status-dot.trade_wait{background:#d75b31}.yf-cutoff{font-weight:800;font-size:1.05rem}.yf-progress{height:8px;background:#e7edf4;border-radius:99px;overflow:hidden}.yf-progress>span{display:block;height:100%;background:var(--yf-accent2);border-radius:99px}.yf-photo-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:10px}.yf-photo{border:1px solid var(--yf-line);border-radius:10px;padding:7px;background:#fff}.yf-photo img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:7px;background:#eef2f6}.yf-offline{border:1px dashed #c18a26;background:#fff8e8}.yf-hidden{display:none!important}.yf-divider{height:1px;background:var(--yf-line);margin:8px 0}.yf-empty{text-align:center;padding:28px 12px;color:var(--yf-muted)}
@media(max-width:760px){.yf-app{padding:0}.yf-shell{border-radius:0;border-left:0;border-right:0}.yf-header{flex-wrap:wrap}.yf-brand{width:100%;font-size:1.03rem}.yf-project-select{max-width:none}.yf-header .yf-btn-small{min-height:36px}.yf-main{padding:10px 9px 76px}.yf-grid-2,.yf-grid-3,.yf-form-grid{grid-template-columns:1fr}.yf-nav{position:fixed;z-index:60;left:0;right:0;bottom:0;border-top:1px solid var(--yf-line);border-bottom:0;box-shadow:0 -3px 16px rgba(20,35,55,.08);padding-bottom:env(safe-area-inset-bottom)}.yf-nav-btn{flex:1;padding:10px 7px;font-size:.76rem;border-bottom:0;border-top:3px solid transparent}.yf-nav-btn.is-active{border-top-color:var(--yf-accent2);border-bottom-color:transparent}.yf-chat-layout{grid-template-columns:1fr;min-height:560px}.yf-channels{display:flex;overflow-x:auto;gap:4px}.yf-channel-btn{width:auto;white-space:nowrap}.yf-chat-panel{min-height:500px}.yf-msg{max-width:94%}.yf-modal-backdrop{padding:8px;align-items:flex-end}.yf-modal{max-height:92vh;border-radius:16px 16px 0 0}.yf-table{min-width:580px}.yf-btn{min-height:44px}.yf-input,.yf-select{min-height:46px}}

/* v0.1.1 mobile modal usability hotfix */
.yf-modal{display:flex;flex-direction:column;overflow:hidden}.yf-modal-head{flex:0 0 auto}.yf-modal-body{min-height:0;overflow:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain}.yf-modal-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;flex:0 0 auto;margin-top:12px;padding-top:12px;border-top:1px solid var(--yf-line);background:#fff}.yf-modal-body .yf-form>button[type="submit"]:last-child{position:sticky;bottom:0;z-index:3;width:100%;box-shadow:0 -8px 18px rgba(255,255,255,.94);margin-top:4px}.yf-modal-body .yf-textarea{min-height:88px}
@media(max-width:760px){.yf-modal{height:min(92dvh,calc(100dvh - 8px));max-height:92dvh;padding-bottom:calc(12px + env(safe-area-inset-bottom))}.yf-modal-actions .yf-btn{flex:1;min-height:48px}.yf-modal-body{padding-right:2px}.yf-modal-body .yf-textarea{min-height:82px}}

/* v0.1.2: project registration must always have a visible, native form submit. */
.yf-project-primary-submit{width:100%;position:sticky;bottom:0;z-index:8;margin-top:12px;min-height:50px;box-shadow:0 -8px 18px rgba(255,255,255,.96)}
.yf-project-header-submit{margin-left:auto}
.yf-modal-head h2{min-width:0;flex:1}
@media(max-width:760px){.yf-project-header-submit{min-width:78px}.yf-project-primary-submit{bottom:0}}

/* v0.1.3: hard fail-safe project registration controls. */
.yf-project-version{font-size:.78rem;font-weight:800;color:#0a5c96;background:#eaf5fc;border:1px solid #b7d9ee;border-radius:9px;padding:7px 9px;margin-bottom:2px;text-align:center}
.yf-project-top-submit,.yf-project-bottom-submit{display:block!important;visibility:visible!important;opacity:1!important;width:100%!important;min-height:52px!important;background:#1167a8!important;color:#fff!important;border:2px solid #0f5d99!important;font-size:1rem!important;font-weight:800!important}
.yf-project-top-submit{position:static!important;margin:2px 0 10px!important;box-shadow:0 3px 10px rgba(17,103,168,.16)!important}
.yf-project-bottom-submit{position:sticky!important;bottom:0!important;margin:12px 0 0!important;z-index:12!important;box-shadow:0 -8px 20px rgba(255,255,255,.98)!important}
.yf-project-header-submit{display:inline-flex!important;visibility:visible!important;opacity:1!important;background:#1167a8!important;color:#fff!important}
.yf-build-marker{max-width:1280px;margin:0 auto 6px;padding:4px 9px;font:700 11px/1.3 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:#0a5c96;text-align:right}

.yf-fallback-submit{display:block!important;visibility:visible!important;opacity:1!important;width:100%!important;min-height:48px!important;margin-top:10px!important}

/* v0.3.0 includes v0.2 field UX + pipe dimension workflow */
.yf-btn-big{min-height:52px;padding:12px 16px;font-size:1rem;border-radius:12px}
.yf-input-big{min-height:52px;font-size:1.05rem;font-weight:700}
.yf-quick-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px}
.yf-quick-grid>.yf-btn{width:100%;justify-content:center}
.yf-dim-head{position:sticky;top:58px;z-index:10}
.yf-dim-statusbar{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:7px}
.yf-dim-status{appearance:none;border:1px solid var(--yf-line);border-radius:12px;background:#fff;padding:9px 6px;color:var(--yf-text);cursor:pointer}
.yf-dim-status strong{display:block;font-size:1.3rem;color:var(--yf-accent2)}
.yf-dim-status span{display:block;font-size:.78rem;color:var(--yf-muted);font-weight:700}
.yf-dim-quick-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.yf-dim-details{border:1px solid var(--yf-line);border-radius:12px;background:#f8fafc;padding:10px 12px}
.yf-dim-details summary{cursor:pointer;font-weight:800;color:var(--yf-accent2);padding:3px 0}
.yf-dim-details[open] summary{margin-bottom:10px}
.yf-dim-save{width:100%;position:sticky;bottom:0;z-index:5;box-shadow:0 -7px 18px rgba(255,255,255,.96)}
.yf-dimension-card{padding:13px;margin-top:8px}
.yf-dim-mm{font-size:1.17rem;font-weight:850;color:#0b4775;margin-top:4px}
.yf-dim-actions{margin-top:10px}
.yf-dim-actions>.yf-btn-big{flex:1 1 150px}
.yf-btn-warning{background:#b86500;border-color:#b86500}
.yf-dim-completed>summary{cursor:pointer;font-weight:800}
@media(max-width:760px){
 .yf-header{padding:7px 8px;gap:6px}
 .yf-brand{font-size:.9rem;width:auto;order:0}
 .yf-project-select{order:1;flex:1 1 56%;min-height:40px}
 .yf-header>.yf-btn{padding:6px 8px;font-size:.74rem;min-height:36px}
 .yf-nav-btn{font-size:.72rem;padding:9px 4px}
 .yf-quick-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .yf-dim-head{top:84px}
 .yf-dim-head>.yf-between{align-items:flex-start;flex-direction:column}
 .yf-dim-head .yf-row{width:100%}
 .yf-dim-head .yf-btn{flex:1}
 .yf-dim-statusbar{grid-template-columns:repeat(5,minmax(72px,1fr));overflow-x:auto;padding-bottom:3px}
 .yf-dim-quick-grid{grid-template-columns:1fr 1fr}
 .yf-dim-number{font-size:1.35rem;font-weight:850;text-align:center}
 .yf-dim-actions{display:grid;grid-template-columns:1fr 1fr}
 .yf-dim-actions>.yf-btn-big{grid-column:1/-1;width:100%}
 .yf-dimension-card .yf-between{align-items:flex-start}
}
@media(max-width:410px){
 .yf-dim-quick-grid{grid-template-columns:1fr}
 .yf-quick-grid{grid-template-columns:1fr 1fr}
}
.yf-dim-actor{margin-top:6px;font-weight:700}

/* v0.3.0 field-first onboarding: one required field, one unmistakable action. */
#yusei-field-app .yf-project-first{max-width:720px;margin:0 auto;padding:22px}
#yusei-field-app .yf-project-quick-form{gap:14px}
#yusei-field-app .yf-project-start{width:100%;min-height:58px;font-size:18px;font-weight:800}
#yusei-field-app .yf-project-details{margin-top:4px;border-top:1px solid rgba(0,0,0,.08);padding-top:10px}
#yusei-field-app .yf-project-details>summary{cursor:pointer;font-weight:700;padding:8px 2px}
#yusei-field-app .yf-project-details>.yf-form-grid{margin-top:12px}
@media(max-width:640px){
 #yusei-field-app .yf-project-first{padding:16px}
 #yusei-field-app .yf-project-start{min-height:62px;font-size:18px}
}
#yusei-field-app .yf-dim-submit-row{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);gap:10px;position:sticky;bottom:0;background:var(--yf-bg,#fff);padding:10px 0 2px;z-index:3}
#yusei-field-app .yf-dim-save-close{min-height:54px}
@media(max-width:560px){#yusei-field-app .yf-dim-submit-row{grid-template-columns:1fr}#yusei-field-app .yf-dim-save,#yusei-field-app .yf-dim-save-close{width:100%;min-height:58px}}

/* Modal dialogs are appended to <body>, outside .yf-app. Re-declare the design tokens here so
   modal buttons never become white text on a transparent/white background. */
.yf-modal-backdrop,.yf-toast-wrap{--yf-bg:#f4f7fb;--yf-card:#fff;--yf-text:#172033;--yf-muted:#657084;--yf-line:#dce3ed;--yf-accent:#0f3b64;--yf-accent2:#1167a8;--yf-ok:#147a46;--yf-warn:#a86100;--yf-danger:#b42318;--yf-radius:14px}


/* v0.3.0: practical field material approval workflow */
.yf-material-head{position:sticky;top:58px;z-index:9}
.yf-material-kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:12px}
.yf-kpi{border:1px solid var(--yf-line);border-radius:12px;background:#f8fafc;padding:9px 10px;text-align:center}
.yf-kpi strong{display:block;font-size:1.35rem;color:var(--yf-accent2)}
.yf-kpi span{display:block;font-size:.78rem;color:var(--yf-muted);font-weight:700}
.yf-material-item{margin-top:8px}
.yf-material-actions{gap:6px}
.yf-material-return{margin-top:8px}
.yf-alert.danger{border-left-color:var(--yf-danger);background:#fff0ef;color:#70211b}
.yf-card-danger{border-color:#efb7b2;background:#fffafa}
.yf-material-form .yf-advanced,.yf-advanced{border:1px solid var(--yf-line);border-radius:12px;background:#f8fafc;padding:10px 12px}
.yf-material-form .yf-advanced>summary,.yf-advanced>summary{cursor:pointer;font-weight:800;color:var(--yf-accent2)}
.yf-order-preview{margin:0;white-space:pre-wrap;max-height:180px;overflow:auto;border:1px solid var(--yf-line);border-radius:10px;background:#f8fafc;padding:10px;font:600 .9rem/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif}
@media(max-width:760px){
 .yf-material-head{top:84px}
 .yf-material-head>.yf-between{align-items:flex-start;flex-direction:column}
 .yf-material-head .yf-btn-big{width:100%}
 .yf-material-kpis{grid-template-columns:repeat(3,minmax(0,1fr))}
 .yf-material-actions .yf-btn{flex:1 1 auto}
}
@media(max-width:390px){
 .yf-material-kpis{grid-template-columns:1fr 1fr 1fr;gap:5px}
 .yf-kpi{padding:7px 4px}.yf-kpi strong{font-size:1.15rem}.yf-kpi span{font-size:.68rem}
}

/* v0.4.0 approachable app-style login, account recovery and softer field UI */
.yf-app{--yf-bg:#f5f9ff;--yf-text:#182338;--yf-muted:#69778d;--yf-line:#dbe6f2;--yf-accent:#155fae;--yf-accent2:#1478e6;--yf-radius:18px}
.yf-shell{background:linear-gradient(180deg,#f7fbff 0,#f4f8fc 100%)}
.yf-card{border-radius:18px;box-shadow:0 5px 18px rgba(28,72,122,.055)}
.yf-btn{border-radius:13px}.yf-btn-big{border-radius:16px}
.yf-brand{display:flex;align-items:center;gap:7px;color:#145da8;letter-spacing:.02em}
.yf-brand-icon{width:30px;height:30px;border-radius:9px;object-fit:cover;box-shadow:0 2px 8px rgba(14,91,177,.18)}
.yf-auth-friendly{max-width:500px;margin:22px auto;padding:20px;background:linear-gradient(180deg,#fff 0,#fbfdff 100%);border-color:#dbe8f6;box-shadow:0 16px 50px rgba(35,85,140,.11)}
.yf-auth-hero{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.yf-auth-hero h1{font-size:1.55rem;margin:0;color:#153b6f;letter-spacing:.025em}.yf-auth-hero p{margin:4px 0 0;color:#1478e6;font-weight:800}
.yf-app-icon-mini{width:74px;height:74px;flex:0 0 74px;border-radius:22px;display:grid;place-items:center;background:linear-gradient(145deg,#2d89f3,#1257a5);color:#fff;font-size:2rem;font-weight:900;box-shadow:0 10px 24px rgba(19,104,199,.22);overflow:hidden}
.yf-app-icon-mini img{width:100%;height:100%;object-fit:cover}
.yf-social-stack{display:grid;gap:10px;margin:14px 0}
.yf-social-btn{appearance:none;width:100%;min-height:56px;border-radius:16px;border:1px solid #d7e1ec;padding:10px 16px;display:grid;grid-template-columns:45px 1fr 30px;align-items:center;text-align:left;font-weight:850;font-size:1rem;background:#fff;color:#1c2839;cursor:pointer;box-shadow:0 3px 12px rgba(29,64,103,.05)}
.yf-social-btn:after{content:'›';font-size:1.6rem;font-weight:500;color:#8b9aab;text-align:right}
.yf-social-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;font-weight:900;font-size:.82rem;background:#eef4fa;color:#285170}
.yf-social-line{background:#06c755;color:#fff;border-color:#06b84e}.yf-social-line .yf-social-mark{background:#fff;color:#06b84e}.yf-social-line:after{color:#fff}
.yf-social-google .yf-social-mark{background:#fff;border:1px solid #e3e7ed;color:#4285f4;font-size:1.15rem}
.yf-social-apple{background:#111;color:#fff;border-color:#111}.yf-social-apple .yf-social-mark{background:#fff;color:#111}.yf-social-apple:after{color:#fff}
.yf-social-passkey{background:#edf7ff;border-color:#bdddf8;color:#114a79}.yf-social-passkey .yf-social-mark{background:#1478e6;color:#fff;font-size:1.1rem}
.yf-recovery-open{appearance:none;border:0;background:transparent;color:#28669f;font-weight:800;text-decoration:underline;text-underline-offset:3px;padding:11px 4px;display:block;margin:2px auto 8px;cursor:pointer}
.yf-auth-details{border-top:1px solid #e5edf5;margin-top:8px;padding-top:8px}.yf-auth-details>summary{cursor:pointer;padding:10px 2px;color:#5f6d7e;font-weight:750}.yf-auth-details[open]>summary{color:#24659f}
.yf-compact-form{margin-top:10px}.yf-auth-legal{font-size:.78rem;color:#7a8797;text-align:center;line-height:1.55;margin:14px 5px 0}
.yf-recovery-panel{display:grid;gap:12px}.yf-recovery-intro{border-radius:16px;background:#eef7ff;padding:14px;border:1px solid #cde5fa}.yf-recovery-intro p{margin:6px 0 0}
.yf-account-panel{display:grid;gap:12px}.yf-account-card{border:1px solid #dce7f2;border-radius:17px;background:#fff;padding:14px;box-shadow:0 3px 12px rgba(31,73,116,.04)}.yf-account-card h3{margin:0 0 7px}.yf-account-card p{margin:5px 0 10px}
.yf-account-id-card{display:flex;align-items:center;justify-content:space-between;gap:12px;background:linear-gradient(135deg,#eef7ff,#f8fcff)}
.yf-kicker{display:block;font-size:.76rem;color:#587087;font-weight:800;margin-bottom:3px}.yf-yusei-id{display:block;font-size:1.15rem;letter-spacing:.07em;color:#105a9c;word-break:break-all}
.yf-account-method{display:flex;gap:10px;justify-content:space-between;align-items:center;padding:10px 0;border-top:1px solid #edf1f5}.yf-account-method:first-of-type{border-top:0}.yf-account-method-main{display:flex;flex-direction:column;gap:2px;min-width:0}
.yf-passkey-list:empty{display:none}.yf-recovery-key-box{margin-top:12px;border:2px dashed #79afe0;border-radius:15px;background:#f2f9ff;padding:13px}.yf-recovery-key-box code{display:block;font-size:1.05rem;font-weight:900;letter-spacing:.08em;margin:8px 0;padding:10px;border-radius:10px;background:#fff;color:#153b62;word-break:break-all}
.yf-recovery-request-card{border:1px solid #f0c677;background:#fffaf0;border-radius:14px;padding:12px;margin-top:9px}.yf-recovery-grant{margin-top:10px;background:#fff;border:1px solid #b9ddc8;border-radius:12px;padding:11px}.yf-recovery-grant strong{display:block;color:#106839;font-size:1.13rem;margin-bottom:4px}
.yf-account-danger{background:#fafbfc}.yf-recovery-approvals:empty{display:none}
.yf-badge-success{background:#e7f7ee;color:#117343}
@media(max-width:760px){
 .yf-auth-friendly{margin:8px;max-width:none;padding:16px;border-radius:22px}
 .yf-auth-hero{gap:12px}.yf-app-icon-mini{width:66px;height:66px;flex-basis:66px;border-radius:19px}.yf-auth-hero h1{font-size:1.32rem}
 .yf-social-btn{min-height:60px;font-size:1.02rem}
 .yf-account-id-card{align-items:flex-start;flex-direction:column}.yf-account-id-card>.yf-btn{width:100%}
 .yf-account-method{align-items:flex-start}.yf-account-method>.yf-btn{flex:0 0 auto}
 .yf-brand span{font-size:.86rem}.yf-brand-icon{width:27px;height:27px}
}

/* v0.4.0: gentle device-change/recovery setup reminder; shown only when no backup login path exists yet. */
.yf-recovery-nudge{display:flex;align-items:center;gap:12px;padding:14px 16px;background:linear-gradient(135deg,#fff9e8,#fff);border:1px solid #f2d98b;box-shadow:0 8px 24px rgba(31,43,67,.06)}
.yf-recovery-nudge-icon{flex:0 0 42px;width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:#fff;font-size:24px;box-shadow:0 4px 12px rgba(31,43,67,.08)}
.yf-recovery-nudge-copy{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}
.yf-recovery-nudge-copy strong{font-size:15px;color:#1d2d44}
.yf-recovery-nudge-copy span{font-size:12px;line-height:1.45;color:#64748b}
@media(max-width:560px){.yf-recovery-nudge{align-items:flex-start;flex-wrap:wrap}.yf-recovery-nudge .yf-btn{margin-left:54px}.yf-recovery-nudge-copy{flex:1 1 calc(100% - 60px)}}