:root {
    --brand-green: #128208;
    --brand-green-dark: #0b6206;
    --brand-green-hover: #0e7207;
    --brand-green-soft: #e8f5e6;
    --brand-white: #ffffff;
    --sidebar: #128208;
    --surface: #ffffff;
    --page: #f5f8f6;
    --border: #dce8e1;
    --text-primary: #17251e;
    --text-muted: #64766c;
    --shadow: 0 8px 24px rgba(16, 45, 39, .07);
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--page); color: var(--text-primary); font-size: .925rem; }
a { color: var(--brand-green-dark); }
.sidebar { position: fixed; inset: 0 auto 0 0; width: 250px; z-index: 1040; overflow-y: auto; background: var(--sidebar); color: white; }
.brand { display: flex; height: 88px; padding: 0 1rem; align-items: center; overflow: hidden; color: white; text-decoration: none; }
.sidebar-logo { width: 210px; height: 210px; flex: none; object-fit: contain; transform: translateY(10px); }
.sidebar-nav { padding: .25rem .75rem 2rem; }
.sidebar-nav a { display: flex; gap: .8rem; align-items: center; margin: .15rem 0; padding: .7rem .85rem; border-radius: .55rem; color: #cbdcd7; text-decoration: none; transition: .15s ease; }
.sidebar-nav a:hover, .sidebar-nav a.active { color: white; background: rgba(255, 255, 255, .09); }
.sidebar-nav a.active { box-shadow: inset 3px 0 #39bd78; }
.nav-section { padding: 1.2rem .85rem .35rem; color: #78958d; font-size: .68rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.app-shell { display: flex; min-height: 100vh; margin-left: 250px; flex-direction: column; }
.topbar { position: sticky; top: 0; z-index: 1030; display: flex; min-height: 72px; align-items: center; padding: .75rem 1.5rem; border-bottom: 1px solid var(--border); background: rgba(255, 255, 255, .96); backdrop-filter: blur(8px); }
.topbar-title { color: var(--text-muted); font-weight: 600; }
.page-content { flex: 1; padding: 1.75rem; }
footer { padding: 1.25rem; color: var(--text-muted); text-align: center; }
.icon-button { width: 42px; height: 42px; border: 1px solid var(--border); border-radius: 50%; background: white; }
.notification-badge { position: absolute; top: -4px; right: -5px; min-width: 19px; padding: 2px 5px; border: 2px solid white; border-radius: 20px; background: #dc3545; color: white; font-size: .65rem; }
.user-menu { display: flex; gap: .65rem; align-items: center; border: 0; text-align: left; }
.avatar { display: grid; width: 40px; height: 40px; place-items: center; border-radius: 50%; background: var(--brand-green-soft); color: var(--brand-green-dark); font-weight: 800; }
.user-copy { display: flex; flex-direction: column; line-height: 1.2; }
.user-copy small { margin-top: .2rem; color: var(--text-muted); }
.alert-menu { width: 290px; }
.alert-menu .dropdown-item { display: flex; justify-content: space-between; padding: .65rem 1rem; }
.card { border: 1px solid var(--border); border-radius: .75rem; box-shadow: var(--shadow); }
.card-header { border-bottom-color: var(--border); background: white; }
.btn-primary, .btn-success { border-color: var(--brand-green); background: var(--brand-green); }
.btn-primary:hover, .btn-primary:active, .btn-success:hover, .btn-success:active { border-color: var(--brand-green-hover) !important; background: var(--brand-green-hover) !important; }
.btn-primary:focus-visible, .btn-success:focus-visible { box-shadow: 0 0 0 .25rem rgba(7,132,71,.24); }
.btn-primary:disabled, .btn-success:disabled { border-color: #83b99b; background: #83b99b; }
.btn-outline-primary { border-color: var(--brand-green); color: var(--brand-green-dark); }
.btn-outline-primary:hover, .btn-outline-primary:active { border-color: var(--brand-green); background: var(--brand-green); color: white; }
.form-control, .form-select { border-color: #ccd9d5; }
.form-control:focus, .form-select:focus { border-color: var(--brand-green); box-shadow: 0 0 0 .2rem rgba(7,132,71,.15); }
.table { vertical-align: middle; }
.table > :not(caption) > * > * { padding: .85rem .9rem; border-bottom-color: #e8efed; }
.table thead th { color: var(--text-muted); font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.page-head { display: flex; justify-content: space-between; gap: 1rem; align-items: flex-start; margin-bottom: 1.25rem; }
.back-navigation { display: flex; margin-bottom: .85rem; overflow: visible; }
.back-button { display: inline-flex; align-items: center; gap: .4rem; border: 2px solid var(--brand-green); background: #fff; color: var(--brand-green-dark); font-weight: 700; opacity: 1; visibility: visible; }
.back-button:hover, .back-button:active { border-color: var(--brand-green-dark); background: var(--brand-green); color: #fff; }
.back-button:focus-visible { box-shadow: 0 0 0 .25rem rgba(18,130,8,.24); }
.page-head h1, h1 { margin-bottom: .3rem; font-size: clamp(1.55rem, 2vw, 2rem); font-weight: 700; }
.filter { display: flex; gap: .65rem; align-items: end; margin-bottom: 1rem; padding: 1rem; border: 1px solid var(--border); border-radius: .75rem; background: white; }
.filter .form-control, .filter .form-select { max-width: 280px; }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(175px, 1fr)); gap: 1rem; margin-top: 1.25rem; }
.kpi { display: flex; min-height: 110px; padding: 1.15rem; justify-content: space-between; align-items: center; }
.kpi small { color: var(--text-muted); font-weight: 600; }
.kpi strong { display: block; margin-top: .3rem; font-size: 1.35rem; }
.kpi i { color: var(--brand-green); font-size: 1.7rem; }
.empty { padding: 3rem 1rem !important; color: var(--text-muted); text-align: center; }
.totals { display: grid; grid-template-columns: 1fr auto; gap: .65rem; padding: 1rem 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.totals .grand-total { font-size: 1.25rem; }
.login-layout { display: grid; min-height: 100vh; grid-template-columns: minmax(360px, 1fr) minmax(460px, .9fr); }
.login-brand-panel { display: flex; padding: 9vw; align-items: center; background: var(--brand-green); color: white; }
.login-brand-panel h1 { margin-top: 1.5rem; font-size: clamp(2rem, 4vw, 3.5rem); }
.login-brand-panel p { max-width: 560px; color: #d5eee6; font-size: 1.05rem; }
.login-brand-logo { width: min(420px, 100%); height: auto; object-fit: contain; }
.login-tagline { margin-bottom: .75rem; color: white !important; font-size: 1rem !important; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
.login-form-panel { display: grid; padding: 2rem; place-items: center; background: white; }
.login-card { width: min(440px, 100%); }
.eyebrow { margin-bottom: .4rem; color: var(--brand-green); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.receipt { max-width: 560px; margin: auto; padding: 2rem; background: white; }
.branding-preview { display: flex; min-height: 240px; padding: 1.25rem; align-items: center; justify-content: center; flex-direction: column; border: 1px solid var(--border); border-radius: .75rem; background: var(--surface); text-align: center; }
.branding-preview img { width: 100%; max-width: 300px; height: auto; object-fit: contain; }
.branding-preview strong { margin-top: .75rem; font-size: 1.1rem; }
.branding-preview span { color: var(--brand-green); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.branding-preview small { margin-top: .5rem; color: var(--text-muted); }
.receipt-brand img { width: 220px; height: 220px; margin: -55px 0 -65px; object-fit: contain; }
.receipt-brand h1 { margin: .25rem 0 0; color: var(--brand-green-dark); font-size: 1.25rem; }
.receipt-tagline { margin-bottom: .35rem; color: var(--brand-green); font-size: .7rem; font-weight: 700; letter-spacing: .14em; }
.print-brand-header { display: none; }
@media (max-width: 991px) {
    .sidebar { transform: translateX(-100%); transition: transform .2s ease; }
    .sidebar.open { transform: translateX(0); }
    .app-shell { margin-left: 0; }
    .login-layout { grid-template-columns: 1fr; }
    .login-brand-panel { display: none; }
    .user-copy { display: none; }
}
@media (max-width: 767px) {
    .page-content { padding: 1rem; }
    .page-head, .filter { align-items: stretch; flex-direction: column; }
    .filter .form-control, .filter .form-select { max-width: none; }
}
@media print {
    .back-navigation { display: none !important; }
    .sidebar, .topbar, footer, .no-print, .filter { display: none !important; }
    .app-shell { margin: 0; }
    .page-content { padding: 0; }
    .card { border: 0; box-shadow: none; }
    .print-brand-header { display: flex; margin-bottom: 1rem; padding-bottom: .8rem; align-items: center; border-bottom: 2px solid var(--brand-green); }
    .print-brand-header { height: 78px; overflow: hidden; }
    .print-brand-header img { width: 190px; height: 190px; margin-top: -56px; object-fit: contain; }
    .print-brand-header .contact { margin-left: auto; text-align: right; }
}