:root{
  --ink:#1f2937;
  --muted:#8b96a8;
  --line:#e8ecf4;
  --bg:#f4f6fb;
  --panel:#fff;
  --purple:#f97316;
  --purple-dark:#c2410c;
  --purple-soft:#fb923c;
  --blue:#f59e0b;
  --green:#10b981;
  --amber:#f59e0b;
  --red:#ef4444;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Yu Gothic UI","Noto Sans JP",sans-serif}
button,input,select,textarea{font:inherit}
button{border:1px solid transparent;border-radius:14px;padding:13px 22px;font-weight:800;cursor:pointer}
a{text-decoration:none}
button:disabled{opacity:.55;cursor:not-allowed}
input,select,textarea{border:1px solid #d9dfec;border-radius:14px;background:#fff;padding:13px 16px;color:var(--ink);box-shadow:inset 0 0 0 1px transparent}
input:focus,select:focus,textarea:focus{outline:3px solid #e7e4ff;border-color:#9b91ff}
textarea{resize:vertical}
.primary{background:linear-gradient(135deg,var(--purple),#fb7f3f);color:#fff;box-shadow:0 12px 24px #f9731633}
.button-link{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;padding:13px 22px;font-weight:900;white-space:nowrap}
.secondary,.portal-button{background:#fff;border-color:#dfe4ef;color:#293241}
.danger{background:#fff2f2;border-color:#ffd0d0;color:#c92a2a}
.wide{width:100%}
.app-hero{background:linear-gradient(115deg,#c2410c 0%,#f97316 48%,#fb923c 100%);color:#fff;padding:34px 44px 36px}
.hero-top{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;max-width:1480px;margin:0 auto}
.brand{display:flex;align-items:center;gap:18px}
.brand-mark{width:58px;height:58px;display:grid;place-items:center;border-radius:18px;background:#ffffff1c;border:1px solid #ffffff36;color:#fff;font-size:28px;font-weight:900;box-shadow:inset 0 1px 0 #ffffff26}
.brand strong{display:block;font-size:28px;font-weight:900;letter-spacing:0}
.brand small{display:block;margin-top:6px;color:#dcd8ff;font-size:15px}
.top-actions{display:flex;align-items:center;gap:16px}
.user-pill{display:flex;align-items:center;gap:11px;border:1px solid #ffffff3d;background:#ffffff18;border-radius:999px;padding:9px 18px;color:#f8f7ff;font-weight:800}
.user-pill b{display:grid;place-items:center;width:35px;height:35px;border-radius:50%;background:#fff;color:var(--purple)}
.portal-button{background:#ffffff12;border-color:#ffffff42;color:#fff;padding:12px 24px}
.hero-tabs{display:flex;gap:12px;max-width:1480px;margin:32px auto 0}
.nav-tab{min-width:150px;background:#ffffff16;border-color:#ffffff14;color:#dedaff;font-size:17px}
.nav-tab:hover{background:#ffffff24}
.nav-tab.active,.nav-tab-light{background:#fff;color:var(--purple-dark);box-shadow:0 10px 28px #2d246a24}
main{padding:30px 34px 70px}
.screen{display:none;max-width:1480px;margin:0 auto}
.screen.active{display:block}
.month-switcher{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid #e3e8f2;border-radius:16px;padding:12px 16px;margin-bottom:2px;box-shadow:0 8px 22px #323b5410}
.month-switcher span{color:#667085;font-size:13px;font-weight:900}
.month-switcher strong{color:#667085;font-size:13px}
.month-buttons{display:flex;gap:8px;overflow:auto;padding:1px 0}
.month-button{min-width:52px;border-color:#dfe4ef;background:#fff;color:#344054;border-radius:11px;padding:9px 14px;font-size:13px;box-shadow:none}
.month-button.active{background:#f97316;border-color:#f97316;color:#fff;box-shadow:0 8px 16px #f9731633}
.summary-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.metric-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px;box-shadow:0 8px 22px #323b5410}
.metric-card span{display:block;color:var(--muted);font-size:14px;font-weight:800}
.metric-card strong{font-size:34px;margin-right:6px;color:#2b3445}
.metric-card small{color:var(--muted)}
.metric-card.amber{border-top:4px solid var(--amber)}
.metric-card.blue{border-top:4px solid var(--blue)}
.metric-card.green{border-top:4px solid var(--green)}
.panel{background:#fff;border:1px solid #e3e8f2;border-radius:20px;box-shadow:0 8px 26px #202b4210;overflow:hidden}
.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:28px 32px;border-bottom:1px solid var(--line)}
.panel-heading h1{margin:0;color:#1f2937;font-size:26px}
.panel-heading p{margin:8px 0 0;color:var(--muted);font-size:15px}
.toolbar{display:grid;grid-template-columns:1fr 220px;gap:14px;padding:18px 20px;border-bottom:1px solid var(--line);background:#fbfcff}
.table-shell{overflow:auto}
.order-header{display:grid;grid-template-columns:minmax(360px,1fr) 180px 140px 150px;gap:14px;padding:16px 20px;background:#f7f8fc;border-bottom:1px solid var(--line);color:#98a2b3;font-weight:900}
.order-header span:nth-child(n+2){text-align:right}
.order-row{width:100%;display:grid;grid-template-columns:48px minmax(300px,1fr) 180px 140px 150px;align-items:center;gap:14px;text-align:left;background:#fff;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:18px 20px;color:var(--ink)}
.order-row:hover{background:#fafbff}
.doc-icon{display:grid;place-items:center;border:1px solid #dadffd;background:#f3f2ff;color:var(--purple);border-radius:12px;height:42px;font-size:12px;font-weight:900}
.order-main{display:flex;flex-direction:column;gap:5px;min-width:0}
.order-main strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:17px}
.order-main small,time{color:#8c96a8;font-size:13px}
.amount{font-weight:900;color:#2b3445;text-align:right}
.status{justify-self:end;border-radius:999px;padding:7px 12px;font-size:12px;font-weight:900}
.status.draft{background:#fff7e8;color:#b76b16}
.status.sent{background:#edf3ff;color:#3456d1}
.status.completed{background:#eafaf4;color:#0b7a56}
.empty-state{padding:44px;text-align:center;color:var(--muted)}
.invoice-check-list{display:grid;gap:12px;padding:18px 20px}
.invoice-check-card{display:grid;grid-template-columns:minmax(240px,1fr) 160px auto;gap:16px;align-items:center;border:1px solid var(--line);border-radius:16px;background:#fff;padding:16px}
.invoice-check-card h2{margin:0;color:#1f2937;font-size:18px}
.invoice-check-card p{margin:6px 0 0;color:var(--muted)}
.invoice-check-card>strong{text-align:right;color:#7c2d12;font-size:20px}
.back{border:0;background:transparent;color:var(--purple-dark);padding:0;margin:0 0 18px}
.form-panel{padding-bottom:26px}
.source-panel{padding:22px 32px 0}
.estimate-link-panel{display:flex;align-items:center;justify-content:space-between;gap:18px;background:#fffaf5;border:1px solid #fed7aa;border-radius:16px;padding:18px}
.estimate-link-panel strong{display:block;color:#7c2d12}
.estimate-link-panel p{margin:6px 0 0;color:var(--muted);line-height:1.6}
.field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;padding:28px 32px}
label{display:flex;flex-direction:column;gap:9px;font-size:13px;font-weight:900;color:#354052}
label b{align-self:flex-start;background:#fff0f0;color:#d33838;border-radius:6px;padding:3px 7px;font-size:10px}
.items-heading{display:flex;align-items:center;justify-content:space-between;margin:0;padding:22px 32px 12px}
.items-heading h2{margin:0;color:#1f2937}
.items-table{display:flex;flex-direction:column;margin:0 32px;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.item-row{display:grid;grid-template-columns:1fr 110px 90px 140px 140px 48px;gap:10px;align-items:center;padding:12px;border-bottom:1px solid var(--line);background:#fff}
.item-row:last-child{border-bottom:0}
.item-row input{min-width:0;text-align:right}
.item-row .item-name{text-align:left}
.item-amount{text-align:right;color:#2b3445}
.icon-button{height:44px;padding:0;background:#fff;border-color:#ffd4d4;color:var(--red);font-size:18px}
.note-field{margin:22px 32px 0}
.form-footer{display:flex;justify-content:space-between;align-items:center;gap:18px;margin:24px 32px 0;padding-top:20px;border-top:1px solid var(--line)}
.total-box{display:flex;align-items:baseline;gap:14px;color:var(--muted)}
.total-box strong{font-size:32px;color:#2b3445}
.actions,.detail-actions{display:flex;gap:12px;flex-wrap:wrap}
.detail-actions{justify-content:flex-end;margin-bottom:16px}
.mail-editor{margin-bottom:16px;background:#fffaf5;border:1px solid #fed7aa;border-radius:18px;padding:18px}
.mail-editor h2{margin:0 0 14px;color:#7c2d12}
.mail-editor label{margin-bottom:14px}
.mail-editor-actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}
.order-sheet{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;box-shadow:0 8px 26px #202b4210}
.sheet-header{display:flex;justify-content:space-between;gap:20px;border-bottom:2px solid #e5e7f6;padding-bottom:20px;margin-bottom:24px}
.sheet-header h1{margin:0;color:#1f2937}
.eyebrow{margin:0 0 7px;color:var(--purple);font-size:11px;font-weight:900;letter-spacing:.14em}
.sheet-meta{display:grid;grid-template-columns:auto auto;gap:6px 14px;align-content:start;text-align:right}
.sheet-meta span{color:var(--muted);font-size:12px}
.issuer-box{border:1px solid var(--line);border-radius:16px;background:#fffaf5;padding:16px 18px;margin-bottom:22px}
.issuer-box h2{margin:0 0 10px;color:#7c2d12;font-size:18px}
.issuer-box div{display:flex;flex-direction:column;gap:5px;color:#4b5563;line-height:1.55}
.sheet-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin-bottom:24px}
.sheet-grid section{border:1px solid var(--line);border-radius:16px;padding:18px}
.sheet-grid h2{margin:0 0 12px}
.sheet-grid p{color:var(--muted)}
dl{margin:10px 0 0}
dl div{display:flex;justify-content:space-between;gap:16px;padding:8px 0;border-bottom:1px solid #edf1f4}
dt{color:var(--muted)}dd{margin:0;font-weight:800;text-align:right}
.print-table{width:100%;border-collapse:separate;border-spacing:0;margin-top:12px;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.print-table th,.print-table td{border-bottom:1px solid var(--line);padding:12px;text-align:left}
.print-table th{background:#f7f8fc;color:#8c96a8}
.print-table td:nth-child(n+2),.print-table th:nth-child(n+2){text-align:right}
.totals{width:min(380px,100%);margin:22px 0 0 auto;border:1px solid var(--line);border-radius:16px;overflow:hidden}
.totals div{display:flex;justify-content:space-between;padding:13px 16px;border-bottom:1px solid var(--line)}
.totals div:last-child{border-bottom:0}
.totals .grand{background:#f3f2ff;font-size:18px;color:var(--purple-dark)}
.notes{margin-top:22px;border:1px solid var(--line);border-radius:16px;padding:18px}
.notes p{line-height:1.7;color:var(--muted)}
.login-screen{position:fixed;inset:0;z-index:100;background:linear-gradient(135deg,#c2410c,#fb923c);display:grid;place-items:center;padding:20px}
.login-screen.hidden{display:none}
.login-card{width:min(440px,100%);background:#fff;border:1px solid #ffffff60;border-radius:22px;padding:36px;box-shadow:0 24px 70px #1f155640}
.login-card .brand-mark{background:linear-gradient(135deg,var(--purple),#fb923c);margin-bottom:18px}
.login-card h1{margin:0 0 8px}
.login-card p{color:var(--muted);line-height:1.7}.login-card label{margin-bottom:14px}
.error-message{background:#fff0f0;color:#c92a2a;padding:11px;border-radius:10px;font-size:13px}
.settings-panel{overflow:visible}
.settings-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(320px,.8fr);gap:18px;padding:28px 32px}
.settings-block{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}
.settings-wide{grid-column:1/-1}
.settings-block-heading{padding:20px 22px;border-bottom:1px solid var(--line);background:#fbfcff}
.settings-block-heading h2{margin:0;color:#1f2937}
.settings-block-heading p{margin:7px 0 0;color:var(--muted);line-height:1.6}
.settings-form{display:grid;grid-template-columns:minmax(180px,1fr) minmax(220px,1fr) auto;gap:12px;padding:18px 20px;border-bottom:1px solid var(--line)}
.settings-list{display:flex;flex-direction:column}
.settings-row{display:grid;grid-template-columns:minmax(180px,1fr) minmax(220px,1fr) auto auto;gap:12px;align-items:center;padding:14px 20px;border-bottom:1px solid var(--line)}
.settings-row:last-child{border-bottom:0}
.settings-row button,.settings-form button{white-space:nowrap}
.settings-fixed-list{display:grid;gap:12px;padding:18px 20px}
.settings-fixed-list div{border:1px solid #fed7aa;background:#fffaf5;border-radius:16px;padding:16px}
.settings-fixed-list span{display:block;color:var(--muted);font-size:13px;font-weight:900}
.settings-fixed-list strong{display:block;margin-top:7px;color:#7c2d12;font-size:18px}
.settings-mail-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:18px 20px}
.settings-full{grid-column:1/-1}
.settings-help{background:#fffaf5;border:1px solid #fed7aa;border-radius:14px;color:#7c2d12;font-size:13px;font-weight:800;line-height:1.7;padding:13px 16px}
.settings-check{align-self:end;display:flex;flex-direction:row;align-items:center;gap:10px;min-height:48px}
.settings-check input{width:auto;box-shadow:none}
.settings-form-actions{display:flex;justify-content:flex-end}
@media(max-width:900px){
  .app-hero{padding:24px 16px}.hero-top{flex-direction:column}.hero-tabs{overflow:auto;padding-bottom:2px}.nav-tab{min-width:130px}
  main{padding:20px 12px 56px}
  .month-switcher{align-items:flex-start;gap:10px;overflow:hidden}
  .month-buttons{flex:1}
  .summary-grid{grid-template-columns:repeat(2,1fr)}
  .panel-heading,.field-grid{padding:22px 18px}
  .toolbar,.field-grid,.sheet-grid,.settings-grid,.settings-form,.settings-row,.settings-mail-form{grid-template-columns:1fr}
  .order-header{display:none}
  .order-row{grid-template-columns:42px 1fr;gap:10px}
  .order-row .amount,.order-row .status,.order-row time{grid-column:2;text-align:left;justify-self:start}
  .invoice-check-card{grid-template-columns:1fr}
  .invoice-check-card>strong{text-align:left}
  .item-row{grid-template-columns:1fr 82px 72px}.item-price,.item-amount,.icon-button{grid-column:auto}
  .items-table,.note-field,.form-footer{margin-left:18px;margin-right:18px}
  .form-footer{align-items:stretch;flex-direction:column}.actions button{flex:1}
  .sheet-header{flex-direction:column}.sheet-meta{text-align:left}
}
@media print{
  body{background:#fff}.app-hero,.no-print,.back{display:none!important}
  .screen{display:block!important;max-width:none;padding:0}
  #list-screen,#form-screen{display:none!important}
  .order-sheet{border:0;box-shadow:none;border-radius:0;padding:0}
}