.signin { position: fixed; inset: 0; display: grid; place-items: center; padding: 2rem; background: var(--navy-deep); z-index: 10; }
.signin-card { width: min(520px, 100%); padding: 3rem; background: var(--white); border-top: 4px solid var(--gold); box-shadow: var(--shadow); }
.signin-card h1 { margin: .2rem 0 .75rem; color: var(--navy); font-size: clamp(1.7rem, 4vw, 2.5rem); }
.signin-card p { line-height: 1.55; }
.signin-card .form-message { margin: 1rem 0 0; color: #9b1c1c; font-weight: 700; }
.signin-card label { display: block; margin: 1.5rem 0 .45rem; font-weight: 700; }
.signin-card select { width: 100%; min-height: 48px; padding: .65rem; border: 1px solid var(--line); margin-bottom: 1rem; }
.shell { min-height: 100vh; display: grid; grid-template-columns: 250px 1fr; }
.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; background: var(--navy-deep); color: var(--white); }
.brand { display: flex; align-items: center; padding: 1rem 1.15rem; min-height: 92px; background: var(--white); border-bottom: 1px solid rgba(255,255,255,.14); }
.brand img { display: block; width: 100%; height: auto; max-height: 68px; object-fit: contain; }
.sidebar nav { padding: 1rem .75rem; display: grid; gap: .2rem; }
.nav-item { min-height: 46px; padding: .65rem .85rem; display: flex; justify-content: space-between; align-items: center; text-align: left; border: 0; border-left: 3px solid transparent; background: transparent; color: #d9e4f3; }
.nav-item:hover, .nav-item.active { background: rgba(255,255,255,.08); color: var(--white); border-left-color: var(--gold-light); }
.count { display: grid; place-items: center; min-width: 24px; height: 24px; border-radius: 50%; background: var(--gold); color: var(--white); font-size: .75rem; }
.sidebar-foot { margin-top: auto; display: flex; justify-content: space-between; padding: 1rem; color: #aab8ce; font-size: .72rem; letter-spacing: .08em; border-top: 1px solid rgba(255,255,255,.14); }
main { min-width: 0; }
.topbar { min-height: 108px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 1.3rem 2rem; background: var(--white); border-bottom: 1px solid var(--line); }
.topbar h1 { margin: 0; color: var(--navy); font-size: 1.65rem; }
.account { display: flex; gap: 1rem; align-items: center; color: var(--muted); font-size: .88rem; }
.environment { padding: .35rem .55rem; color: var(--warning); background: #fff6e9; border: 1px solid #e9c38f; font-weight: 800; font-size: .7rem; letter-spacing: .08em; }
.menu-button { display: none; }
.page { padding: 1.6rem 2rem 3rem; max-width: 1680px; margin: 0 auto; }
.hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.decision-card { min-height: 235px; padding: 1.7rem; color: var(--white); background: var(--navy); border-bottom: 4px solid var(--gold); }
.decision-card .eyebrow { color: var(--gold-light); }
.decision-card h2 { max-width: 800px; margin: .35rem 0 .7rem; font-size: clamp(1.6rem, 2.4vw, 2.35rem); line-height: 1.15; }
.decision-card p { max-width: 780px; line-height: 1.55; color: #e4ebf5; }
.status-panel, .panel { background: var(--white); border: 1px solid var(--line); box-shadow: var(--shadow); }
.status-panel { padding: 1.25rem; }
.status-row { display: flex; justify-content: space-between; gap: 1rem; padding: .72rem 0; border-bottom: 1px solid var(--line); }
.status-row:last-child { border: 0; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; margin: 1rem 0; }
.metric { padding: 1.2rem; background: var(--white); border: 1px solid var(--line); border-top: 3px solid var(--gold); }
.metric strong { display: block; margin-top: .35rem; color: var(--navy); font-family: Georgia, serif; font-size: 2rem; }
.workspace-grid { display: grid; grid-template-columns: 1.45fr 1fr; gap: 1rem; }
.panel-header { display: flex; align-items: center; justify-content: space-between; padding: 1rem 1.2rem; border-bottom: 1px solid var(--line); }
.panel-header h2 { margin: 0; color: var(--navy); font-size: 1.05rem; }
.content-list, .device-list, .audit-list { display: grid; }
.content-row { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: 1.1rem 1.2rem; border-bottom: 1px solid var(--line); }
.content-row:last-child, .device-row:last-child, .audit-row:last-child { border-bottom: 0; }
.content-row h3 { margin: .1rem 0 .35rem; font-size: 1rem; }
.content-row p { margin: 0; line-height: 1.45; color: var(--muted); }
.meta { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .65rem; font-size: .76rem; color: var(--muted); }
.row-actions { display: flex; gap: .5rem; align-items: flex-start; }
.row-actions .button { min-height: 38px; padding: .45rem .7rem; font-size: .8rem; }
.device-row, .audit-row { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: .85rem 1.2rem; border-bottom: 1px solid var(--line); }
.stack-gap { margin-top: 1rem; }
.panel-message { padding: 2rem; }
.device-row strong, .audit-row strong { color: var(--navy); }
.empty-view { min-height: 520px; padding: 2rem; background: var(--white); border: 1px solid var(--line); }
.empty-view h2 { color: var(--navy); }
@media (max-width: 1100px) { .metrics { grid-template-columns: repeat(2, 1fr); } .hero-grid, .workspace-grid { grid-template-columns: 1fr; } .account #clock { display: none; } }
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 5; width: 260px; transform: translateX(-100%); transition: transform .2s ease; }
  .sidebar.open { transform: translateX(0); }
  .menu-button { display: block; min-height: 44px; background: var(--white); border: 1px solid var(--line); }
  .topbar { padding: 1rem; align-items: flex-start; } .topbar .eyebrow { display: none; } .account { margin-left: auto; } .account .environment { display: none; }
  .page { padding: 1rem; } .metrics { grid-template-columns: 1fr 1fr; }
  .content-row { grid-template-columns: 1fr; } .signin-card { padding: 2rem; }
}