:root {
    --ink: #172126;
    --muted: #6d7b80;
    --line: #e5e9e8;
    --paper: #f7f9f8;
    --white: #ffffff;
    --teal: #147d72;
    --teal-dark: #0d5b55;
    --accent: #d48b4f;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
.app-shell { min-height: 100vh; display: flex; }
.sidebar { width: 260px; flex: 0 0 260px; padding: 28px 18px 20px; background: var(--white); border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.brand { display: flex; gap: 11px; align-items: center; color: var(--ink); text-decoration: none; padding: 0 12px 28px; }
.brand strong { display: block; font-size: 16px; letter-spacing: .01em; }
.brand small { display: block; color: var(--muted); font-size: 11px; margin-top: 2px; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; background: var(--teal); color: white; font-weight: 800; border-radius: 8px; }
.sidebar-section-label, .eyebrow { color: var(--muted); text-transform: uppercase; letter-spacing: .12em; font-size: 10px; font-weight: 700; }
.sidebar-section-label { padding: 0 12px 8px; }
.nav-link { color: #536166; font-size: 13px; padding: 10px 12px; border-radius: 6px; display: flex; align-items: center; justify-content: space-between; text-decoration: none; }
.nav-link:hover, .nav-link.active { background: #edf6f4; color: var(--teal-dark); }
.nav-link.active { font-weight: 700; }
.nav-status { color: #a0abad; font-size: 10px; }
.sidebar-footer { margin-top: auto; border-top: 1px solid var(--line); padding-top: 14px; }
.main-content { min-width: 0; flex: 1; }
.topbar { min-height: 92px; background: var(--white); border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; padding: 20px 42px; }
.page-title { margin: 4px 0 0; font-size: 23px; font-weight: 700; }
.user-menu { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 13px; }
.user-avatar { width: 31px; height: 31px; display: grid; place-items: center; background: #dcefeb; color: var(--teal-dark); border-radius: 50%; font-size: 12px; font-weight: 800; }
.logout-button { color: var(--teal-dark); font-size: 12px; text-decoration: none; padding-right: 0; }
.content-container { max-width: 1240px; padding: 38px 42px 56px; margin: 0 auto; }
.welcome-strip { display: flex; justify-content: space-between; align-items: flex-start; padding: 26px 28px; background: #e6f2ef; border: 1px solid #d3e9e4; border-radius: 8px; }
h2 { font-size: 19px; margin: 7px 0 5px; }
.welcome-strip p, .module-placeholder p, .empty-state p { color: var(--muted); margin: 0; font-size: 13px; }
.status-pill { background: var(--white); border: 1px solid #c8e1dc; color: var(--teal-dark); padding: 7px 11px; border-radius: 20px; font-size: 11px; white-space: nowrap; }
.status-dot { width: 7px; height: 7px; display: inline-block; margin-right: 5px; background: #3caf75; border-radius: 50%; }
.section-heading { display: flex; justify-content: space-between; align-items: end; margin: 38px 0 15px; }
.section-heading h2 { margin-bottom: 0; }
.muted-note { color: var(--muted); font-size: 11px; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 13px; }
.metric-card { background: var(--white); border: 1px solid var(--line); border-radius: 7px; padding: 18px 19px; min-height: 126px; }
.metric-label { display: block; color: var(--muted); font-size: 12px; }
.metric-value { display: block; font-size: 29px; margin: 13px 0 5px; line-height: 1; }
.metric-caption { color: #a1abad; font-size: 10px; }
.empty-state, .module-placeholder { margin-top: 31px; padding: 42px 25px; text-align: center; background: var(--white); border: 1px dashed #cbd7d5; border-radius: 8px; }
.empty-icon, .placeholder-icon { margin: 0 auto 15px; width: 34px; height: 34px; display: grid; place-items: center; color: var(--teal); border: 1px solid #aad2cb; border-radius: 50%; font-size: 21px; font-weight: 300; }
.empty-state h2 { margin-bottom: 7px; }
.module-placeholder { max-width: 680px; margin: 36px auto; }
.module-placeholder h2 { font-size: 28px; }
.module-placeholder .btn { margin-top: 22px; background: var(--teal); border-color: var(--teal); }
@media (max-width: 900px) { .sidebar { width: 220px; flex-basis: 220px; } .topbar, .content-container { padding-left: 26px; padding-right: 26px; } .metric-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .app-shell { display: block; } .sidebar { width: 100%; padding: 14px; border-right: 0; border-bottom: 1px solid var(--line); } .brand { padding: 0 5px 14px; } .sidebar-section-label, .sidebar-footer { display: none; } .nav { display: grid; grid-template-columns: repeat(3, 1fr); } .nav-link { font-size: 11px; padding: 8px 7px; } .nav-status { display: none; } .topbar { padding: 18px; } .user-name { display: none; } .content-container { padding: 22px 18px 38px; } .welcome-strip, .section-heading { display: block; } .status-pill { display: inline-block; margin-top: 17px; } .muted-note { display: block; margin-top: 8px; } .metric-grid { grid-template-columns: repeat(2, 1fr); gap: 9px; } .metric-card { min-height: 110px; padding: 14px; } }
.auth-page { background: var(--paper); }
.auth-shell { width: min(100% - 36px, 430px); min-height: 100vh; margin: 0 auto; padding: 54px 0; display: flex; flex-direction: column; justify-content: center; }
.auth-brand { justify-content: center; margin-bottom: 24px; }
.auth-card { background: var(--white); border: 1px solid var(--line); border-radius: 8px; padding: 30px; box-shadow: 0 12px 32px rgba(23, 33, 38, .05); }
.auth-card h2 { margin-top: 0; }
.auth-card label { display: block; color: var(--ink); font-size: 12px; font-weight: 700; margin-bottom: 6px; }
.auth-card input { width: 100%; border: 1px solid #cfd9d7; border-radius: 5px; padding: 10px 11px; font-size: 14px; }
.auth-card input:focus { outline: 2px solid #b9ded8; border-color: var(--teal); }
.auth-card button[type="submit"] { border: 0; border-radius: 5px; background: var(--teal); color: white; padding: 10px 15px; font-size: 13px; font-weight: 700; }
.auth-card a { color: var(--teal-dark); font-size: 12px; }
.auth-card .text-red-600, .auth-card ul { color: #b34d42; font-size: 12px; }