:root {
  color-scheme: light;
  --color-ink: #0f172a;
  --color-muted: #64748b;
  --color-soft: #f8fafc;
  --color-panel: #ffffff;
  --color-line: #e2e8f0;
  --color-primary: #0f766e;
  --color-primary-strong: #0b5f59;
  --color-primary-soft: #ccfbf1;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 28px;
  --shadow-soft: 0 18px 55px rgba(15, 23, 42, 0.08);
  --shadow-lift: 0 26px 80px rgba(15, 23, 42, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--color-soft);
  color: var(--color-ink);
}

* { box-sizing: border-box; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at top left, #ecfeff 0, transparent 34rem), var(--color-soft); }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }

.shell { min-height: 100vh; display: grid; grid-template-columns: 280px minmax(0, 1fr); transition: grid-template-columns 180ms ease; }
.shell.sidebar-collapsed { grid-template-columns: 88px minmax(0, 1fr); }
.desktop-sidebar { position: sticky; top: 0; height: 100vh; background: #0f172a; color: #f8fafc; padding: 18px; display: grid; grid-template-rows: auto auto 1fr auto; gap: 18px; overflow: hidden; }
.sidebar-brand { display: flex; gap: 12px; align-items: center; min-width: 0; }
.brand-mark { width: 40px; height: 40px; border-radius: 14px; background: linear-gradient(135deg, #14b8a6, #ccfbf1); color: #042f2e; display: grid; place-items: center; font-weight: 950; }
.brand-copy, .nav-label, .scope-card, .logout-action { transition: opacity 140ms ease, transform 140ms ease; }
.brand-copy { display: grid; gap: 2px; }
.brand-copy small, .scope-card small { color: #94a3b8; }
.shell.sidebar-collapsed .brand-copy,
.shell.sidebar-collapsed .scope-card,
.shell.sidebar-collapsed .nav-label,
.shell.sidebar-collapsed .logout-action { opacity: 0; pointer-events: none; transform: translateX(-8px); }
.scope-card { border: 1px solid rgba(255,255,255,0.12); border-radius: var(--radius-md); padding: 14px; background: rgba(255,255,255,0.06); display: grid; gap: 4px; min-width: 220px; }
.desktop-nav { display: grid; gap: 8px; align-content: start; overflow-y: auto; }
.nav-item { min-height: 44px; display: flex; align-items: center; gap: 12px; border: 0; border-radius: 16px; padding: 10px 12px; color: #cbd5e1; background: transparent; text-decoration: none; text-align: left; }
.nav-item:hover { background: rgba(255,255,255,0.08); color: #fff; }
.nav-item.active { background: #14b8a6; color: #042f2e; font-weight: 900; }
.nav-icon { width: 28px; height: 28px; border-radius: 10px; display: grid; place-items: center; background: rgba(255,255,255,0.10); font-size: 0.72rem; font-weight: 900; flex: 0 0 auto; }
.nav-item.active .nav-icon { background: rgba(255,255,255,0.45); }
.sidebar-actions { display: flex; gap: 8px; align-items: center; justify-content: space-between; }
.sidebar-collapse { border: 0; width: 42px; height: 42px; border-radius: 14px; background: rgba(255,255,255,0.10); color: #fff; font-weight: 900; }

.main { display: grid; grid-template-rows: auto 1fr; min-width: 0; }
.topbar { min-height: 82px; background: rgba(255,255,255,0.82); backdrop-filter: blur(18px); border-bottom: 1px solid rgba(226,232,240,0.8); display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 18px clamp(18px, 3vw, 36px); position: sticky; top: 0; z-index: 10; }
.topbar-title { display: grid; gap: 2px; }
.eyebrow { margin: 0; color: var(--color-muted); font-size: 0.75rem; font-weight: 850; text-transform: uppercase; letter-spacing: 0.08em; }
.page-title { margin: 0; font-size: clamp(1.5rem, 2.5vw, 2.3rem); letter-spacing: -0.04em; }
.status-pill, .badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 6px 10px; font-size: 0.82rem; font-weight: 800; background: #edf2f7; color: #314155; white-space: nowrap; }
.status-pill { background: var(--color-primary-soft); color: var(--color-primary-strong); }
.content { width: min(100%, 1440px); margin: 0 auto; padding: clamp(18px, 3vw, 36px); display: grid; gap: 22px; align-content: start; padding-bottom: 42px; }

.grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 18px; }
.span-3 { grid-column: span 3; } .span-4 { grid-column: span 4; } .span-5 { grid-column: span 5; } .span-6 { grid-column: span 6; } .span-7 { grid-column: span 7; } .span-8 { grid-column: span 8; } .span-12 { grid-column: span 12; }
.panel, .command-surface, .list-card, .detail-hero { background: rgba(255,255,255,0.94); border: 1px solid rgba(226,232,240,0.88); border-radius: var(--radius-lg); padding: clamp(16px, 2vw, 24px); min-width: 0; box-shadow: 0 1px 0 rgba(15,23,42,0.03); }
.command-surface, .detail-hero { box-shadow: var(--shadow-soft); border-radius: var(--radius-xl); }
.list-card { display: grid; gap: 8px; transition: transform 140ms ease, box-shadow 140ms ease; }
.list-card:hover { transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.mobile-card-list { display: contents; }
.subtle-panel { background: rgba(248,250,252,0.9); }
.nested-grid { margin-top: 16px; }
.stat { display: grid; gap: 6px; }
.stat strong { font-size: clamp(1.45rem, 2.5vw, 2rem); letter-spacing: -0.04em; }
.muted { color: var(--color-muted); }
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; justify-content: space-between; }
.row-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.field { display: grid; gap: 7px; margin-bottom: 15px; }
.compact-field { min-width: 170px; margin-bottom: 0; }
label { font-weight: 750; color: #334155; }
.required-mark { color: #b42318; font-weight: 900; }
input, select, textarea { width: 100%; border: 1px solid #cbd5e1; border-radius: var(--radius-sm); padding: 12px 13px; background: #fff; color: var(--color-ink); }
textarea { min-height: 76px; resize: vertical; }
.primary, .secondary, .danger, .ghost { border: 0; border-radius: 999px; padding: 11px 16px; font-weight: 850; }
.primary { background: var(--color-primary); color: #fff; box-shadow: 0 10px 24px rgba(15,118,110,.18); }
.primary:hover { background: var(--color-primary-strong); }
.secondary { background: #e2e8f0; color: var(--color-ink); }
.danger { background: #b42318; color: #fff; }
.ghost { background: transparent; border: 1px solid #cbd5e1; color: #e2e8f0; }
.panel .ghost, .command-surface .ghost, .detail-hero .ghost, .login-panel .ghost { color: var(--color-ink); }

.table-wrap { overflow-x: auto; border-radius: var(--radius-md); }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 14px 12px; border-bottom: 1px solid #e2e8f0; text-align: left; vertical-align: top; }
th { color: var(--color-muted); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.08em; }
tr:hover td { background: #f8fafc; }
.link-button { border: 0; background: transparent; color: var(--color-primary); padding: 0; font-weight: 900; text-align: left; text-decoration: none; }
.link-button:hover { color: var(--color-primary-strong); text-decoration: underline; text-underline-offset: 3px; }

.billing-action-cell { min-width: 560px; }
.inline-payment-form { display: grid; grid-template-columns: 120px 120px 150px auto; gap: 8px; align-items: end; min-width: 560px; }
.inline-payment-form .field { margin-bottom: 0; }
.inline-payment-form label { font-size: 0.78rem; }

.badge.good { background: #dcfce7; color: #166534; }
.badge.warn { background: #fef3c7; color: #92400e; }
.badge.bad { background: #fee2e2; color: #991b1b; }
.notice, .error, .empty, .permission-lock { border-radius: var(--radius-md); padding: 14px 16px; }
.notice { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.error { background: #fff1f2; color: #9f1239; border: 1px solid #fecdd3; }
.empty { background: rgba(248,250,252,0.9); border: 1px dashed #cbd5e1; color: var(--color-muted); }
.permission-lock { background: #fff; border: 1px solid #fecdd3; color: #991b1b; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }

.login-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(320px, 460px) 1fr; background: radial-gradient(circle at top left, #99f6e4, transparent 34rem), var(--color-soft); }
.login-panel { align-self: center; margin: 32px; padding: 32px; background: rgba(255,255,255,0.94); border: 1px solid #e2e8f0; border-radius: var(--radius-xl); box-shadow: var(--shadow-lift); }
.login-art { align-self: center; padding: 56px; color: var(--color-ink); }
.login-art h1 { font-size: clamp(2.4rem, 5vw, 5rem); line-height: .95; margin: 0 0 18px; letter-spacing: -0.07em; }
.login-art p { max-width: 650px; font-size: 1.12rem; color: var(--color-muted); }

.collapsible-panel summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; font-size: 1.05rem; font-weight: 900; color: var(--color-ink); }
.collapsible-panel summary::-webkit-details-marker { display: none; }
.collapsible-panel summary::before { content: ">"; color: var(--color-primary); margin-right: 2px; }
.collapsible-panel[open] summary::before { content: "v"; }
.module-list { display: grid; gap: 11px; }
.module-toggle { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center; padding: 13px; border: 1px solid #e2e8f0; border-radius: var(--radius-md); background: #fff; }
.read-only-toggle { background: #f8fafc; }
.role-settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.role-card { border: 1px solid #e2e8f0; border-radius: var(--radius-lg); padding: 16px; display: grid; gap: 14px; background: #fff; }
.role-card h3 { margin: 0 0 4px; }
.role-badges { display: flex; flex-wrap: wrap; gap: 8px; }
.role-toggle { align-items: start; }
.role-toggle small { display: block; margin-top: 4px; }
.switch { width: auto; min-width: 22px; transform: scale(1.2); }
.invoice-panel { border-color: #c7d2fe; }
.invoice-document { display: grid; gap: 12px; border: 1px solid #e2e8f0; border-radius: var(--radius-lg); padding: 22px; background: #fff; }

.feedback-widget { position: fixed; right: 22px; bottom: 22px; z-index: 70; display: grid; justify-items: end; gap: 12px; }
.feedback-trigger { border: 0; border-radius: 999px; padding: 13px 18px; background: #0f172a; color: #fff; font-weight: 900; box-shadow: var(--shadow-lift); }
.feedback-popover { width: min(420px, calc(100vw - 32px)); max-height: calc(100vh - 92px); overflow-y: auto; background: #fff; border: 1px solid rgba(226,232,240,0.9); border-radius: var(--radius-lg); padding: 18px; box-shadow: var(--shadow-lift); }
.feedback-popover h2 { margin: 0; }
.feedback-list { display: grid; gap: 14px; margin-top: 14px; }
.bug-sprint-queue { display: grid; gap: 14px; }
.feedback-card { display: grid; gap: 12px; border: 1px solid #e2e8f0; border-radius: var(--radius-lg); padding: 16px; background: #fff; }
.feedback-card h3, .feedback-card p { margin: 0; }
.feedback-triage-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; padding-top: 12px; border-top: 1px solid #e2e8f0; }
.feedback-triage-form .field { margin-bottom: 0; }
.feedback-triage-form .field:nth-child(3), .feedback-triage-form button { grid-column: 1 / -1; }
.severity-low { background: #dcfce7; color: #166534; }
.severity-medium { background: #dbeafe; color: #1d4ed8; }
.severity-high { background: #fef3c7; color: #92400e; }
.severity-critical { background: #fee2e2; color: #991b1b; }

.mobile-bottom-nav { display: none; }

@media (max-width: 980px) {
  .grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }
  .span-3, .span-4 { grid-column: span 3; }
  .span-5, .span-6, .span-7, .span-8, .span-12 { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  .login-shell, .shell { display: block; }
  .login-art, .desktop-sidebar { display: none; }
  .login-panel { margin: 16px; }
  .topbar { position: static; min-height: auto; padding: 18px; }
  .content { padding: 18px 14px 92px; gap: 16px; }
  .grid { grid-template-columns: 1fr; gap: 14px; }
  .span-3, .span-4, .span-5, .span-6, .span-7, .span-8, .span-12 { grid-column: auto; }
  .panel, .command-surface, .detail-hero { border-radius: 22px; padding: 16px; }
  .form-grid, .role-settings-grid { grid-template-columns: 1fr; }
  .table-wrap table { min-width: 0; }
  .mobile-card-list { display: grid; gap: 12px; }
  .billing-action-cell, .inline-payment-form { min-width: 0; }
  .inline-payment-form { grid-template-columns: 1fr; }
  .mobile-bottom-nav { position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 40; display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; padding: 8px; background: rgba(255,255,255,0.92); border: 1px solid rgba(226,232,240,0.9); border-radius: 24px; box-shadow: var(--shadow-lift); backdrop-filter: blur(18px); }
  .mobile-bottom-nav .nav-item { min-height: 54px; justify-content: center; display: grid; gap: 3px; padding: 7px 4px; color: var(--color-muted); }
  .mobile-bottom-nav .nav-icon { margin: 0 auto; background: #f1f5f9; }
  .mobile-bottom-nav .nav-label { opacity: 1; transform: none; pointer-events: auto; font-size: 0.68rem; max-width: 74px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .feedback-widget { right: 14px; bottom: 86px; }
  .feedback-triage-form { grid-template-columns: 1fr; }
}

@media print {
  body * { visibility: hidden; }
  .invoice-panel, .invoice-panel * { visibility: visible; }
  .invoice-panel { position: absolute; inset: 0; box-shadow: none; border: 0; }
  .no-print { display: none; }
}