*{box-sizing:border-box}
:root{font-family:var(--ms-font-sans);font-size:16px;background:var(--ms-canvas);color:var(--ms-ink)}
html{min-width:320px;background:var(--ms-canvas)}
body{min-height:100vh;margin:0;background:var(--ms-canvas);color:var(--ms-ink);font-weight:400}
button,input,select{font:inherit}
button{min-height:44px;border:0;cursor:pointer}
button:disabled{cursor:not-allowed;opacity:.56}
button:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--ms-focus-ring);outline-offset:2px}
[hidden]{display:none!important}
h1,h2,h3,p{margin-top:0}
h1,h2,h3,strong{font-weight:600}
h1{font-size:clamp(1.75rem,3vw,2.25rem);line-height:1.12;letter-spacing:-.035em}
h2{font-size:1.25rem;line-height:1.28;letter-spacing:-.02em}
h3{font-size:1rem;line-height:1.4}
p{color:var(--ms-ink-secondary);line-height:1.55}
small{line-height:1.4}
.primary,.secondary,.text-button,.nav-item,.icon-button,.back-button,.theme-toggle{min-height:44px;border-radius:6px;padding:10px 16px;font-weight:500}
.primary{background:var(--ms-primary-fill);color:var(--ms-on-primary);box-shadow:var(--ms-ring)}
.primary:hover{background:var(--ms-primary-strong)}
.secondary{background:var(--ms-surface);color:var(--ms-ink);box-shadow:var(--ms-ring)}
.secondary:hover,.icon-button:hover,.theme-toggle:hover{background:var(--ms-surface-subtle)}
.wide{width:100%}
.theme-toggle{display:inline-flex;align-items:center;gap:8px;background:var(--ms-surface);color:var(--ms-ink);box-shadow:var(--ms-ring);white-space:nowrap}
.theme-toggle>span:first-child{font-family:var(--ms-font-mono);font-size:1rem}
.guest-layout{min-height:100vh;display:grid;grid-template-columns:minmax(360px,1.08fr) minmax(420px,.92fr)}
.login-brand{position:relative;min-height:100vh;padding:clamp(40px,7vw,96px);display:flex;flex-direction:column;justify-content:space-between;gap:48px;background:var(--ms-surface-subtle);box-shadow:var(--ms-sidebar-shadow)}
.guest-theme-toggle{position:absolute;top:24px;right:24px}
.login-brand img{width:250px;max-width:64%;height:auto}
.dark .login-brand img,.dark .sidebar-brand img,.dark .receipt-head img{padding:6px;border-radius:6px;background:var(--ms-primary-fill)}
.login-brand>div{max-width:660px}
.login-brand h1{max-width:760px;margin-bottom:24px;font-size:clamp(2.5rem,5vw,4.75rem)}
.login-brand>div>p{max-width:560px;margin-bottom:0;font-size:1.05rem}
.privacy-note{margin:0;font-size:.875rem}
.login-panel{align-self:center;width:min(460px,calc(100% - 48px));margin:40px auto;padding:40px;border-radius:12px;background:var(--ms-surface);box-shadow:var(--ms-card-shadow)}
.login-context,.context-cluster{display:flex;flex-wrap:wrap;gap:8px;color:var(--ms-ink-secondary);font-size:.75rem}
.login-context{margin-bottom:28px}
.login-context span,.context-cluster span{display:inline-flex;min-height:28px;align-items:center;padding:5px 9px;border-radius:9999px;background:var(--ms-surface-subtle);box-shadow:var(--ms-ring);font-weight:500}
.login-heading{margin-bottom:28px}
.login-heading h2{margin-bottom:8px;font-size:1.75rem}
.login-heading p{margin-bottom:0}
label{display:block;margin-bottom:16px;color:var(--ms-ink);font-size:.875rem;font-weight:500}
input,select{display:block;width:100%;min-height:48px;margin-top:8px;padding:11px 13px;border:1px solid var(--ms-line-strong);border-radius:6px;background:var(--ms-surface);color:var(--ms-ink)}
input::placeholder{color:var(--ms-ink-muted)}
input[readonly]{background:var(--ms-surface-subtle)}
.password-field{position:relative}
.password-field input{padding-right:94px}
.password-toggle{position:absolute;top:2px;right:2px;min-height:44px;padding:8px 12px;border-radius:4px;background:transparent;color:var(--ms-primary);font-size:.8125rem;font-weight:500}
.password-toggle:hover{background:var(--ms-primary-tint)}
.build-version{display:block;margin-top:16px;color:var(--ms-ink-muted);font-family:var(--ms-font-mono);font-size:.75rem;text-align:center}
.form-error{padding:12px 14px;border-radius:8px;background:var(--ms-risk-tint);color:var(--ms-on-risk-tint);box-shadow:var(--ms-ring);font-weight:500;line-height:1.4}
.login-panel form>.primary{margin-top:8px}
.text-button{display:block;margin:12px auto 20px;padding:8px 12px;background:transparent;color:var(--ms-primary)}
.text-button:hover,.back-button:hover{text-decoration:underline}
.help-box{padding:16px 0 0;background:transparent;box-shadow:inset 0 1px 0 var(--ms-line);font-size:.875rem}
.help-box p{margin:4px 0 0}
.field-hint{margin:-8px 0 18px;font-size:.8125rem}
.app-shell{min-height:100vh}
.sidebar{position:fixed;z-index:10;inset:0 auto 0 0;width:240px;height:100vh;padding:24px 16px;display:flex;flex-direction:column;overflow-y:auto;background:var(--ms-rail);color:var(--ms-on-rail);box-shadow:var(--ms-sidebar-shadow)}
.sidebar-brand{display:flex;align-items:center;gap:8px;padding:0 8px 20px;box-shadow:var(--ms-divider)}
.sidebar-brand img{width:104px;height:auto}
.sidebar-brand span{font-weight:600}
.sidebar-user{display:flex;align-items:center;gap:12px;margin:20px 0 12px;padding:12px;border-radius:8px;background:var(--ms-surface-subtle);box-shadow:var(--ms-ring)}
.sidebar-user>span,.profile-avatar,.header-avatar{display:grid;place-items:center;flex:0 0 auto;border-radius:9999px;background:var(--ms-primary-fill);color:var(--ms-on-primary);font-family:var(--ms-font-mono);font-weight:500}
.sidebar-user>span{width:40px;height:40px;font-size:.75rem}
.sidebar-user strong,.sidebar-user small{display:block;max-width:142px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidebar-user small{margin-top:3px;color:var(--ms-on-rail-muted)}
.nav-label{margin:18px 0 8px;padding:0 12px;color:var(--ms-on-rail-muted);font-size:.6875rem;font-weight:500;letter-spacing:.08em}
.nav-item{display:block;width:100%;margin:2px 0;padding-inline:12px;background:transparent;color:var(--ms-on-rail-muted);text-align:left}
.nav-item:hover{background:var(--ms-surface-subtle);color:var(--ms-on-rail)}
.nav-item.active{background:var(--ms-primary-tint);color:var(--ms-on-primary-tint);box-shadow:inset 3px 0 0 var(--ms-accent)}
.sidebar-footer{margin-top:auto;padding-top:16px;box-shadow:var(--ms-footer-shadow)}
.sidebar-footer small{display:block;padding:12px 12px 0;color:var(--ms-on-rail-muted)}
.logout{color:var(--ms-on-rail)}
.workspace{min-width:0;min-height:100vh;margin-left:240px}
.workspace-header{position:sticky;z-index:8;top:0;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px 24px;padding:16px 32px 20px;background:var(--ms-glass);box-shadow:var(--ms-topbar-shadow)}
.workspace-header h1{grid-column:1/-1;margin:0;font-size:1.75rem}
.header-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px}
.session-badge{display:inline-flex;min-height:36px;align-items:center;gap:8px;padding:7px 10px;border-radius:9999px;background:var(--ms-success-tint);color:var(--ms-on-success-tint);box-shadow:var(--ms-ring);font-size:.75rem;font-weight:500}
.session-badge span,.status-chip::before{width:7px;height:7px;flex:0 0 auto;border-radius:9999px;background:currentColor}
.status-chip::before{content:""}
.header-avatar{width:40px;height:40px;font-size:.75rem}
.app-view{width:min(1280px,100%);margin:0 auto;padding:32px 32px 64px}
.welcome-panel{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px;padding:24px;border-radius:12px;background:var(--ms-surface-subtle);box-shadow:var(--ms-ring)}
.welcome-panel h2{margin-bottom:8px;font-size:1.5rem}
.welcome-panel p{margin:0}
#dashboard-period,.period,.money,.receipt-total,.entry-amount,.numeric,.metric-card strong,.stack-item>strong,.small-button,.step-card>span,.credential-grid input{font-family:var(--ms-font-mono);font-variant-numeric:tabular-nums}
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:24px}
.metric-card{padding:20px;border-radius:8px;background:var(--ms-surface);box-shadow:var(--ms-card-shadow)}
.metric-card.accent{background:var(--ms-surface);color:var(--ms-ink)}
.metric-card span,.metric-card strong,.metric-card small{display:block}
.metric-card span{color:var(--ms-ink-secondary);font-size:.8125rem;font-weight:500}
.metric-card strong{margin:16px 0 8px;color:var(--ms-ink);font-size:1.5rem;letter-spacing:-.035em}
.metric-card small,.metric-card.accent small{color:var(--ms-ink-muted)}
.two-column{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.surface{padding:24px;border-radius:8px;background:var(--ms-surface);box-shadow:var(--ms-card-shadow)}
.surface+.surface{margin-top:20px}
.two-column>.surface+.surface{margin-top:0}
.surface-heading,.section-intro{display:flex;align-items:flex-start;justify-content:space-between;gap:20px;margin-bottom:20px}
.surface-heading h2,.section-intro h2{margin-bottom:5px}
.surface-heading p,.section-intro p{margin:0}
.section-intro{align-items:center;margin-bottom:24px}
.stack-item{display:flex;min-height:64px;align-items:center;justify-content:space-between;gap:18px;padding:12px 0;box-shadow:var(--ms-divider)}
.stack-item:last-child{box-shadow:none}
.stack-item strong,.stack-item small{display:block}
.stack-item small{margin-top:4px;color:var(--ms-ink-muted)}
.empty-copy{padding:20px 0;color:var(--ms-ink-muted)}
.filters{display:grid;grid-template-columns:minmax(220px,1fr) minmax(180px,260px);gap:16px;margin-bottom:20px;padding:16px;border-radius:12px;background:var(--ms-surface-subtle);box-shadow:var(--ms-ring)}
.filters label{margin:0}
.settlement-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.settlement-card{display:flex;min-height:232px;flex-direction:column;padding:20px;border-radius:8px;background:var(--ms-surface);box-shadow:var(--ms-card-shadow)}
.settlement-card h3{margin:16px 0 6px;font-size:1.0625rem}
.settlement-card .money{margin:16px 0 4px;color:var(--ms-ink);font-size:1.5rem;font-weight:500}
.settlement-card button{align-self:flex-start;margin-top:auto}
.status-chip{display:inline-flex;width:fit-content;min-height:28px;align-items:center;gap:7px;padding:5px 9px;border-radius:9999px;background:var(--ms-primary-tint);color:var(--ms-on-primary-tint);box-shadow:var(--ms-ring);font-size:.75rem;font-weight:500}
.status-chip.warning{background:var(--ms-warning-tint);color:var(--ms-on-warning-tint)}
.status-chip.disabled{background:var(--ms-risk-tint);color:var(--ms-on-risk-tint)}
.status-chip.paid{background:var(--ms-success-tint);color:var(--ms-on-success-tint)}
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-bottom:20px}
.step-card{padding:20px;border-radius:8px;background:var(--ms-surface);box-shadow:var(--ms-card-shadow)}
.step-card>span{display:grid;width:32px;height:32px;place-items:center;margin-bottom:16px;border-radius:9999px;background:var(--ms-primary-fill);color:var(--ms-on-primary);font-weight:500}
.step-card h3{margin-bottom:8px}
.step-card p{margin:0;font-size:.875rem}
.empty-state{padding:44px 24px;text-align:center}
.empty-state p{max-width:650px;margin:10px auto 0}
.empty-icon{display:grid;width:64px;height:64px;place-items:center;margin:0 auto 20px;border-radius:8px;background:var(--ms-surface-subtle);color:var(--ms-ink-secondary);box-shadow:var(--ms-ring);font-family:var(--ms-font-mono);font-size:.75rem;font-weight:500}
.demo-access{display:grid;grid-template-columns:minmax(220px,.8fr) minmax(360px,1.2fr);gap:20px;align-items:end;margin-bottom:20px}
.demo-access[hidden]{display:none}
.credential-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-panel{margin-bottom:20px}
.icon-button{min-width:44px;padding:8px;background:var(--ms-surface-subtle);color:var(--ms-ink);font-size:1.25rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px}
.form-grid .full{grid-column:1/-1}
.form-actions{display:flex;justify-content:flex-end;gap:10px}
.form-actions button{width:auto;margin:0}
.table-surface{padding:0;overflow:hidden}
.responsive-table{width:100%}
.table-head,.member-row{display:grid;grid-template-columns:minmax(180px,1.25fr) minmax(190px,1fr) minmax(140px,.8fr) auto;align-items:center;gap:18px}
.table-head{min-height:44px;padding:10px 20px;background:var(--ms-surface-subtle);color:var(--ms-ink-secondary);box-shadow:var(--ms-divider);font-size:.75rem;font-weight:500}
.member-row{min-height:76px;padding:14px 20px;box-shadow:var(--ms-divider)}
.member-row:last-child{box-shadow:none}
.member-row strong,.member-row small{display:block}
.member-row small{margin-top:4px;overflow-wrap:anywhere;color:var(--ms-ink-muted)}
.member-row .actions{display:flex;align-items:center;gap:8px}
.small-button{min-height:44px;padding:9px 12px;font-size:.8125rem}
.profile-card{display:flex;align-items:center;gap:20px;margin-bottom:20px}
.profile-avatar{width:68px;height:68px}
.profile-card h2{margin-bottom:5px}
.profile-card p{margin-bottom:10px}
.back-button{margin-bottom:16px;padding-left:0;background:transparent;color:var(--ms-primary)}
.receipt{max-width:860px;margin:0 auto;border-radius:12px}
.receipt-head{display:flex;align-items:center;gap:24px;margin-bottom:20px;padding-bottom:20px;box-shadow:var(--ms-divider)}
.receipt-head img{width:176px;max-width:42%;height:auto}
.receipt-head h2{margin-bottom:4px}
.receipt-head p{margin:0}
.receipt-summary{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:20px;margin-bottom:24px;padding-bottom:20px;box-shadow:var(--ms-divider)}
.receipt-summary h2{margin-bottom:6px}
.receipt-summary p{margin-bottom:4px}
.receipt-amount small{display:block;margin-bottom:6px;color:var(--ms-ink-secondary);font-size:.75rem;font-weight:500;text-align:right}
.receipt-total{margin:0;color:var(--ms-ink);font-size:1.4rem;font-weight:500;text-align:right}
.entries-table{margin-top:16px;overflow:hidden;border-radius:8px;box-shadow:var(--ms-ring)}
.entries-table .table-head,.entry-row{grid-template-columns:minmax(180px,1.35fr) minmax(160px,1fr) minmax(150px,.8fr) minmax(120px,auto)}
.entry-row{display:grid;min-height:84px;align-items:center;gap:18px;padding:14px 16px;box-shadow:var(--ms-divider)}
.entry-row:last-child{box-shadow:none}
.entry-row p{margin:3px 0}
.entry-amount{color:var(--ms-ink);font-weight:500;text-align:right}
.receipt-actions{display:flex;gap:10px;margin-top:24px}
.legal-note{margin:24px 0 0;padding-top:20px;color:var(--ms-ink-secondary);box-shadow:inset 0 1px 0 var(--ms-line);font-size:.8125rem}
.toast{position:fixed;z-index:20;right:24px;bottom:24px;max-width:min(430px,calc(100% - 48px));padding:14px 16px;border-radius:8px;background:var(--ms-success-tint);color:var(--ms-on-success-tint);box-shadow:var(--ms-card-shadow);font-weight:500}
.toast.error{background:var(--ms-risk-tint);color:var(--ms-on-risk-tint)}
@media(max-width:1050px){.metric-grid,.settlement-grid,.step-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.workspace-header,.app-view{padding-right:24px;padding-left:24px}}
@media(max-width:820px){.guest-layout{grid-template-columns:1fr}.login-brand{min-height:320px;padding:32px}.login-brand h1{max-width:620px;font-size:2.4rem}.privacy-note{display:none}.login-panel{margin:28px auto}.sidebar{position:static;width:auto;height:auto;padding:16px 20px;overflow:visible}.sidebar-brand{justify-content:space-between}.sidebar-user{margin:14px 0}.sidebar nav:not([hidden]){display:flex!important;gap:6px;overflow-x:auto}.nav-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.nav-item{width:auto;white-space:nowrap}.sidebar-footer{display:flex;align-items:center;justify-content:space-between;padding-top:10px}.sidebar-footer small{padding:0}.workspace{margin-left:0}.workspace-header{position:static}.two-column{grid-template-columns:1fr}.two-column>.surface+.surface{margin-top:0}.demo-access,.credential-grid{grid-template-columns:1fr}}
@media(max-width:767px){.table-head{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.member-row,.entry-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start;padding:18px 20px}.member-row>[role='cell']::before,.entry-row>[role='cell']::before{content:attr(data-label);display:block;margin-bottom:5px;color:var(--ms-ink-muted);font-size:.6875rem;font-weight:500;letter-spacing:.04em;text-transform:uppercase}.entry-amount{text-align:left}}
@media(max-width:580px){.login-brand{min-height:300px;padding:72px 20px 28px}.guest-theme-toggle{top:16px;right:16px}.login-brand img{width:180px}.login-brand h1{font-size:2rem}.login-panel{width:calc(100% - 40px);padding:28px 20px}.workspace-header{grid-template-columns:1fr;padding:14px 20px 18px}.header-actions{justify-content:flex-start}.session-badge{display:none}.workspace-header h1{grid-column:auto}.app-view{padding:24px 20px 48px}.welcome-panel,.section-intro,.surface-heading{align-items:flex-start;flex-direction:column}.welcome-panel button,.section-intro>button,.section-intro .actions{width:100%}.section-intro .actions{display:grid;gap:8px}.metric-grid,.settlement-grid,.step-grid,.filters,.form-grid{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.form-actions{flex-direction:column-reverse}.form-actions button,.receipt-actions button{width:100%}.member-row,.entry-row,.receipt-summary{grid-template-columns:1fr}.receipt-total,.receipt-amount small{text-align:left}.receipt-actions{flex-direction:column}.theme-label{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}}
@media print{.sidebar,.workspace-header,.app-view:not(#detail),.back-button,.no-print,.toast{display:none!important}.app-shell{display:block!important}.workspace{margin:0}.app-view{width:100%;padding:0}.receipt{max-width:none;padding:0;box-shadow:none}.receipt-head img{width:160px}.entries-table{box-shadow:var(--ms-ring)}}