:root {
    --ts-orange:#ff9200;--ts-orange-hover:#e98200;--ts-orange-light:#fff2df;--ts-orange-soft:#fff8ef;
    --ts-black:#17191d;--ts-black-soft:#2a2d32;--ts-white:#fff;--ts-bg:#f8f9fb;--ts-border:#e8e9ed;
    --ts-text:#24262b;--ts-muted:#757982;--ts-success:#32a873;--ts-warning:#f2a43a;--ts-danger:#dd5b5b;--ts-info:#4d85d8;
    --shadow:0 10px 32px rgba(23,25,29,.08);--ease:175ms ease;
  }
  *{box-sizing:border-box}html{background:#f7f8fa}body{margin:0;color:var(--ts-text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;background:radial-gradient(circle at top left,rgba(255,146,0,.14),transparent 34%),linear-gradient(145deg,#fff7ed 0,#fafbfd 45%,#fff 100%);min-height:100vh}.portal-icons{position:absolute;width:0;height:0;overflow:hidden}button,a{font:inherit}button{cursor:pointer}svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.portal-shell{width:min(100%,720px);min-height:100vh;margin:0 auto;background:rgba(248,249,251,.76);position:relative;box-shadow:0 0 60px rgba(23,25,29,.08)}
  .portal-header{position:sticky;top:0;z-index:20;height:70px;padding:10px 16px;display:flex;align-items:center;gap:12px;background:rgba(255,255,255,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(23,25,29,.06)}.portal-brand{display:flex;align-items:center;gap:10px;min-width:0;padding:0;border:0;background:transparent;color:var(--ts-black);text-align:left;text-decoration:none}.portal-brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;color:#fff;background:linear-gradient(145deg,var(--ts-orange),#ffad3d);box-shadow:0 7px 18px rgba(255,146,0,.24)}.portal-brand-mark svg{width:28px;height:28px}.portal-brand strong,.portal-brand small{display:block}.portal-brand strong{font-size:18px;letter-spacing:-.02em}.portal-brand small{font-size:9px;letter-spacing:.14em;color:var(--ts-orange);font-weight:800}.preview-badge{margin-left:auto;padding:6px 9px;border-radius:999px;background:var(--ts-orange-light);color:#a95600;font-size:10px;font-weight:900;letter-spacing:.08em}.round-button{border:1px solid var(--ts-border);background:#fff;color:var(--ts-black);width:42px;height:42px;border-radius:14px;display:grid;place-items:center;transition:transform var(--ease),border-color var(--ease),background var(--ease)}.round-button:active{transform:scale(.96)}
  .portal-main{padding:20px 16px 108px;outline:0}.loading-view{min-height:65vh;display:grid;place-content:center;text-align:center;gap:16px;color:var(--ts-muted)}.loading-tire{display:grid;place-items:center;width:72px;height:72px;margin:auto;border-radius:24px;background:var(--ts-orange-light);color:var(--ts-orange);animation:spin 1.8s linear infinite}.loading-tire svg{width:42px;height:42px}@keyframes spin{to{transform:rotate(360deg)}}.startup-stage-code,.error-code{display:inline-block;width:max-content;max-width:100%;margin:0 auto;padding:5px 9px;border-radius:999px;background:#f1f2f4;color:#60646c;font:700 10px/1.4 ui-monospace,SFMono-Regular,Consolas,monospace;letter-spacing:.03em}.error-code{margin:2px auto 18px;color:#8d3a3a;background:#fdecec}.error-card,.link-card,.surface-card,.vehicle-card,.tire-set-card,.reservation-card,.booking-card,.recommend-card{background:rgba(255,255,255,.94);border:1px solid rgba(23,25,29,.07);border-radius:22px;box-shadow:var(--shadow)}.error-card{padding:28px;text-align:center}.error-icon{display:grid;place-items:center;width:56px;height:56px;margin:0 auto 14px;border-radius:18px;background:#fdecec;color:var(--ts-danger)}
  .auth-card,.link-card{padding:24px;background:rgba(255,255,255,.94);border:1px solid rgba(23,25,29,.07);border-radius:22px;box-shadow:var(--shadow)}.auth-card>h1,.link-card>h1{margin:0;color:var(--ts-black);font-size:28px}.auth-card>p,.link-card>p{color:var(--ts-muted);line-height:1.7}.auth-card>small{display:block;margin-top:12px;color:var(--ts-muted);text-align:center}.line-login-button{display:flex;align-items:center;justify-content:center;width:100%;min-height:58px;border-radius:16px;background:#06c755;color:#fff;text-decoration:none;font-weight:900;box-shadow:0 8px 20px rgba(6,199,85,.2);transition:background var(--ease),transform var(--ease)}.line-login-button:hover{background:#05b94f}.line-login-button:active{transform:scale(.985)}.dev-notice{margin:16px 0;padding:12px 14px;border:1px solid #ffe0b8;border-radius:14px;background:var(--ts-orange-soft);color:#8d4b00;font-size:12px;line-height:1.6}.link-form{display:grid;gap:13px;margin-top:18px;padding-top:18px;border-top:1px solid var(--ts-border)}.link-form h2{margin:0;font-size:19px}.link-form>p{margin:0;color:var(--ts-muted);font-size:12px;line-height:1.6}.link-form label{display:grid;gap:6px;color:var(--ts-text);font-size:12px;font-weight:800}.link-form input{width:100%;min-height:50px;padding:11px 13px;border:1px solid var(--ts-border);border-radius:14px;background:#fff;color:var(--ts-text);outline:0;transition:border-color var(--ease),box-shadow var(--ease)}.link-form input:focus{border-color:var(--ts-orange);box-shadow:0 0 0 3px rgba(255,146,0,.12)}.link-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
  .eyebrow{margin:0 0 5px;color:var(--ts-orange);font-size:10px;font-weight:900;letter-spacing:.15em}.hero{padding:4px 2px 18px}.hero h1{margin:0;color:var(--ts-black);font-size:28px;letter-spacing:-.04em}.hero p{margin:7px 0 0;color:var(--ts-muted);font-size:14px}.section-heading{display:flex;align-items:end;justify-content:space-between;margin:12px 2px 12px}.section-heading h2{margin:0;color:var(--ts-black);font-size:20px;letter-spacing:-.03em}.section-heading small{color:var(--ts-muted)}
  .vehicle-list{display:grid;gap:14px}.vehicle-card{width:100%;padding:18px;text-align:left;color:inherit;border:1px solid rgba(23,25,29,.07);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}.vehicle-card:hover{transform:translateY(-2px);border-color:rgba(255,146,0,.28);box-shadow:0 14px 38px rgba(23,25,29,.1)}.vehicle-top{display:flex;align-items:center;gap:12px}.vehicle-icon{display:grid;place-items:center;flex:0 0 auto;width:50px;height:50px;border-radius:17px;background:var(--ts-orange-soft);color:var(--ts-orange)}.vehicle-name{min-width:0;flex:1}.vehicle-name strong{display:block;font-size:19px;color:var(--ts-black)}.vehicle-name small{display:block;margin-top:3px;color:var(--ts-muted)}.chevron{color:var(--ts-muted)}.tire-mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:15px}.tire-mini{padding:10px 11px;border-radius:14px;background:#f7f8fa}.tire-mini small,.tire-mini strong{display:block}.tire-mini small{color:var(--ts-muted);font-size:11px}.tire-mini strong{margin-top:2px;font-size:13px}.next-booking{margin-top:10px;padding-top:10px;border-top:1px solid var(--ts-border);display:flex;justify-content:space-between;font-size:12px;color:var(--ts-muted)}.next-booking strong{color:var(--ts-text)}
  .health-badge,.status-pill{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:999px;font-size:11px;font-weight:800}.health-GOOD,.status-good{color:#247752;background:#eaf8f1}.health-CAUTION,.status-caution{color:#a95600;background:#fff2df}.health-NEEDS_REPLACEMENT,.status-danger{color:#a93c3c;background:#fdecec}.health-UNKNOWN,.status-neutral{color:#60646c;background:#f1f2f4}.status-info{color:#275fa8;background:#eaf2ff}
  .add-vehicle{width:100%;min-height:58px;margin-top:14px;border:1px dashed #d6d8dd;border-radius:18px;background:rgba(255,255,255,.65);color:var(--ts-muted);font-weight:800}.add-vehicle small{display:block;font-weight:500;margin-top:3px}.vehicle-hero{padding:22px;background:linear-gradient(135deg,#17191d,#2a2d32);border-radius:24px;color:#fff;box-shadow:0 14px 34px rgba(23,25,29,.2)}.vehicle-hero .eyebrow{color:#ffad3d}.vehicle-hero h1{margin:0;font-size:26px}.vehicle-hero p{margin:7px 0 0;color:rgba(255,255,255,.66)}.vehicle-facts{display:grid;grid-template-columns:repeat(2,1fr);gap:9px;margin-top:16px}.vehicle-facts div{padding:11px;border:1px solid rgba(255,255,255,.1);border-radius:14px;background:rgba(255,255,255,.06)}.vehicle-facts small,.vehicle-facts strong{display:block}.vehicle-facts small{color:rgba(255,255,255,.55);font-size:10px}.vehicle-facts strong{margin-top:3px;font-size:13px}.action-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.action-button{min-height:88px;padding:14px;border:1px solid var(--ts-border);border-radius:18px;background:#fff;color:var(--ts-black);text-align:left;font-weight:800;transition:transform var(--ease),border-color var(--ease)}.action-button svg{display:block;margin-bottom:10px;color:var(--ts-orange)}.action-button.primary-action{background:var(--ts-orange);border-color:var(--ts-orange);color:#fff}.action-button.primary-action svg{color:#fff}.action-button:active{transform:scale(.98)}
  .chart-title{padding:4px 2px 14px}.chart-title h1{margin:0;font-size:27px;color:var(--ts-black)}.chart-title p{margin:6px 0 0;color:var(--ts-muted)}.tire-set-list{display:grid;gap:16px}.tire-set-card{overflow:hidden}.tire-set-head{padding:18px;border-top:3px solid var(--ts-orange);display:flex;justify-content:space-between;gap:10px}.tire-set-head h2{margin:0;font-size:19px}.tire-set-head p{margin:5px 0 0;color:var(--ts-muted);font-size:12px}.tire-set-meta{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--ts-border);border-top:1px solid var(--ts-border);border-bottom:1px solid var(--ts-border)}.tire-set-meta div{padding:11px 14px;background:#fff}.tire-set-meta small,.tire-set-meta strong{display:block}.tire-set-meta small{font-size:10px;color:var(--ts-muted)}.tire-set-meta strong{margin-top:3px;font-size:12px}.tire-layout{padding:18px;background:linear-gradient(180deg,#fff,#fffaf4)}.axle-label{text-align:center;color:var(--ts-muted);font-size:9px;font-weight:900;letter-spacing:.15em}.four-tires{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:9px 0}.tire-unit{padding:13px;border:1px solid var(--ts-border);border-radius:17px;background:#fff;text-align:center}.tire-unit small,.tire-unit strong,.tire-unit b{display:block}.tire-unit small{color:var(--ts-muted);font-size:10px}.tire-unit strong{margin:5px 0 3px;font-size:23px;color:var(--ts-black)}.tire-unit strong span{font-size:11px;color:var(--ts-muted)}.tire-unit b{font-size:11px}.photo-section,.history-section{padding:18px;border-top:1px solid var(--ts-border)}.subheading{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.subheading h3{margin:0;font-size:16px}.subheading small{color:var(--ts-muted)}.photo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.photo-thumb{aspect-ratio:1;border:1px solid var(--ts-border);border-radius:14px;background:linear-gradient(145deg,#fff2df,#f1f2f4);display:grid;place-items:center;color:var(--ts-orange);position:relative;overflow:hidden}.photo-thumb span{position:absolute;left:5px;bottom:5px;padding:3px 5px;border-radius:6px;background:rgba(23,25,29,.76);color:#fff;font-size:8px}.empty-inline{padding:18px;border-radius:14px;background:#f7f8fa;color:var(--ts-muted);text-align:center;font-size:12px}.history-list{display:grid;gap:0}.history-item{position:relative;padding:0 0 18px 22px;border-left:2px solid #ffe0b8}.history-item:last-child{padding-bottom:0}.history-item::before{content:"";position:absolute;left:-6px;top:3px;width:10px;height:10px;border-radius:50%;background:var(--ts-orange);box-shadow:0 0 0 4px #fff2df}.history-item time{display:block;color:var(--ts-orange);font-size:11px;font-weight:800}.history-item strong{display:block;margin-top:3px}.history-item p{margin:4px 0 0;color:var(--ts-muted);font-size:12px;line-height:1.6}
  .recommend-card{margin-top:16px;padding:20px;border-top:3px solid var(--ts-orange)}.recommend-card h2{margin:0 0 7px;font-size:20px}.recommend-card>p{margin:0;color:var(--ts-muted);line-height:1.7;font-size:13px}.decision-list{display:grid;gap:9px;margin-top:16px}.decision-button{min-height:54px;border:1px solid var(--ts-border);border-radius:16px;background:#fff;color:var(--ts-black);font-weight:800;text-align:left;padding:13px 15px;transition:background var(--ease),border-color var(--ease),transform var(--ease)}.decision-button:hover{border-color:var(--ts-orange);background:var(--ts-orange-soft)}.decision-button:active{transform:scale(.985)}.decision-current{margin-top:12px;padding:11px;border-radius:13px;background:#eaf8f1;color:#247752;font-size:12px;font-weight:800}
  .booking-progress{display:grid;grid-template-columns:repeat(4,1fr);gap:5px;margin:4px 0 18px}.booking-progress span{height:4px;border-radius:999px;background:#e2e4e8}.booking-progress span.is-active{background:var(--ts-orange)}.booking-card{padding:20px}.booking-card h1,.booking-card h2{margin:0}.booking-card>p{color:var(--ts-muted);font-size:13px}.choice-list{display:grid;gap:9px;margin-top:15px}.choice-button,.slot-choice,.date-button{border:1px solid var(--ts-border);background:#fff;color:var(--ts-black);border-radius:16px;transition:border-color var(--ease),background var(--ease),transform var(--ease)}.choice-button{min-height:56px;padding:14px;text-align:left;font-weight:800}.choice-button:hover,.slot-choice:hover,.date-button:hover{border-color:var(--ts-orange);background:var(--ts-orange-soft)}.calendar-legend{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0;color:var(--ts-muted);font-size:10px}.date-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:7px}.date-button{min-height:70px;padding:7px 3px;text-align:center}.date-button small,.date-button strong,.date-button span{display:block}.date-button small{font-size:9px;color:var(--ts-muted)}.date-button strong{font-size:16px}.date-button span{margin-top:3px;font-size:10px;font-weight:800}.date-button.is-disabled{opacity:.48}.date-button.status-open span{color:var(--ts-success)}.date-button.status-low span{color:#a95600}.date-button.status-full span{color:var(--ts-danger)}.slot-list{display:grid;gap:8px;margin-top:14px}.slot-row{display:flex;align-items:center;justify-content:space-between;min-height:58px;border:1px solid var(--ts-border);border-radius:16px;background:#fff;overflow:hidden;transition:border-color var(--ease),background var(--ease)}.slot-row:has(.slot-choice:not(:disabled)):hover{border-color:var(--ts-orange);background:var(--ts-orange-soft)}.slot-row.is-closed{opacity:.55}.slot-choice{flex:1;align-self:stretch;min-width:0;padding:11px 14px;text-align:left;border:0;border-radius:0;background:transparent}.slot-choice strong{font-size:17px}.slot-choice small{display:block;color:var(--ts-muted);margin-top:2px}.slot-choice:disabled{cursor:not-allowed}.wait-button{min-height:44px;border:0;border-left:1px solid var(--ts-border);background:transparent;color:var(--ts-orange);font-weight:800;padding:8px 12px}.confirm-card{margin-top:14px;padding:16px;border-radius:17px;background:var(--ts-orange-soft);border:1px solid #ffe0b8}.confirm-card small,.confirm-card strong{display:block}.confirm-card small{color:var(--ts-muted)}.confirm-card strong{margin-top:4px;font-size:18px}.primary-wide,.secondary-wide,.danger-wide{width:100%;min-height:56px;border-radius:16px;font-weight:900;padding:13px 18px;transition:transform var(--ease),background var(--ease)}.primary-wide{border:1px solid var(--ts-orange);background:var(--ts-orange);color:#fff;box-shadow:0 8px 20px rgba(255,146,0,.22)}.primary-wide:hover{background:var(--ts-orange-hover)}.secondary-wide{border:1px solid var(--ts-border);background:#fff;color:var(--ts-black)}.danger-wide{border:1px solid var(--ts-danger);background:var(--ts-danger);color:#fff}.primary-wide:active,.secondary-wide:active,.danger-wide:active{transform:scale(.985)}.button-stack{display:grid;gap:9px;margin-top:16px}
  .reservation-list{display:grid;gap:12px}.reservation-card{padding:17px}.reservation-top{display:flex;justify-content:space-between;gap:10px}.reservation-top time{font-size:18px;font-weight:900;color:var(--ts-black)}.reservation-card h3{margin:10px 0 4px}.reservation-card p{margin:0;color:var(--ts-muted);font-size:12px}.reservation-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:14px}.reservation-actions button{min-height:44px;border-radius:13px;font-weight:800}.complete-card{text-align:center;padding:36px 20px}.complete-icon{display:grid;place-items:center;width:72px;height:72px;margin:0 auto 16px;border-radius:24px;background:#eaf8f1;color:var(--ts-success)}.complete-icon svg{width:42px;height:42px}.complete-card h1{margin:0;font-size:26px}.complete-card p{color:var(--ts-muted)}
  .bottom-nav{position:fixed;z-index:19;left:50%;bottom:0;transform:translateX(-50%);width:min(100%,720px);display:grid;grid-template-columns:1fr 1fr;padding:8px 16px calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-top:1px solid rgba(23,25,29,.08)}.bottom-nav button{min-height:55px;border:0;border-radius:15px;background:transparent;color:var(--ts-muted);display:grid;place-content:center;gap:2px;font-size:10px;font-weight:800}.bottom-nav button svg{margin:auto}.bottom-nav button.is-active{color:var(--ts-orange);background:var(--ts-orange-soft)}
  .photo-viewer,.confirm-modal{position:fixed;inset:0;z-index:50;display:flex;align-items:flex-end;justify-content:center}.photo-viewer[hidden],.confirm-modal[hidden]{display:none}.modal-backdrop{position:absolute;inset:0;border:0;background:rgba(23,25,29,.54);backdrop-filter:blur(3px)}.photo-sheet,.confirm-sheet{position:relative;width:min(100%,720px);max-height:90vh;overflow:auto;padding:10px 18px calc(20px + env(safe-area-inset-bottom));border-radius:26px 26px 0 0;background:#fff;box-shadow:0 -20px 60px rgba(23,25,29,.24)}.sheet-handle{width:42px;height:4px;border-radius:999px;background:#d9dbe0;margin:0 auto 13px}.sheet-header{display:flex;justify-content:space-between;align-items:center}.sheet-header small{color:var(--ts-orange);font-weight:900;letter-spacing:.12em}.sheet-header h2{margin:2px 0 0}.photo-loading{display:grid;place-content:center;min-height:280px;color:var(--ts-muted)}#photo-image{display:block;width:100%;max-height:62vh;object-fit:contain;margin-top:14px;border-radius:18px;background:#f1f2f4}#photo-image[hidden]{display:none}.photo-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.confirm-sheet h2{margin:0}.confirm-sheet p{color:var(--ts-muted);line-height:1.7}.confirm-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:18px}.portal-toast{position:fixed;z-index:70;left:50%;bottom:92px;transform:translate(-50%,18px);width:min(calc(100% - 32px),560px);padding:13px 16px;border-radius:14px;background:var(--ts-black);color:#fff;text-align:center;font-size:13px;font-weight:800;opacity:0;pointer-events:none;transition:opacity var(--ease),transform var(--ease)}.portal-toast.is-visible{opacity:1;transform:translate(-50%,0)}
  [hidden]{display:none!important}@media(min-width:600px){.portal-main{padding:28px 28px 112px}.portal-header{padding-left:28px;padding-right:28px}.vehicle-list{grid-template-columns:1fr 1fr}.date-grid{grid-template-columns:repeat(7,1fr)}.photo-grid{grid-template-columns:repeat(4,1fr)}}@media(max-width:360px){.portal-main{padding-left:12px;padding-right:12px}.date-grid{grid-template-columns:repeat(3,1fr)}.action-grid,.link-form-grid{grid-template-columns:1fr}.portal-brand strong{font-size:16px}}