:root {
    --iz-primary: #7a1f2b;
    --iz-primary-dark: #55151d;
    --iz-gold: #c99a2e;
    --iz-bg: #f6f2f0;
}

body {
    background: var(--iz-bg);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.iz-sidebar {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--iz-primary) 0%, var(--iz-primary-dark) 100%);
    color: #fff;
    width: 240px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1040;
}

.iz-sidebar a {
    color: #e8f0ec;
    text-decoration: none;
    display: block;
    padding: 10px 18px;
    border-radius: 6px;
    margin: 2px 8px;
}

.iz-sidebar a:hover, .iz-sidebar a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.iz-sidebar .brand {
    padding: 18px;
    border-bottom: 1px solid rgba(255,255,255,0.15);
    margin-bottom: 10px;
}

.iz-sidebar .brand small {
    color: var(--iz-gold);
}

.iz-sidebar a[data-bs-toggle="collapse"] .iz-caret {
    font-size: 0.75rem;
    transition: transform 0.2s ease;
}
.iz-sidebar a[data-bs-toggle="collapse"]:not(.collapsed) .iz-caret {
    transform: rotate(180deg);
}
.iz-subnav {
    padding-left: 20px;
}
.iz-subnav a {
    font-size: 0.92rem;
    padding: 7px 18px;
    opacity: 0.9;
}
.iz-subnav a:hover, .iz-subnav a.active {
    opacity: 1;
}

.iz-topbar {
    background: #fff;
    border-bottom: 1px solid #e3e6e5;
}

.iz-content {
    padding: 22px;
}

.card {
    border: none;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    border-radius: 10px;
}

.stat-card {
    border-radius: 12px;
    color: #fff;
    padding: 18px;
}

.stat-card h3 { margin: 0; font-size: 1.8rem; }
.stat-card p { margin: 0; opacity: .9; }

.bg-iz1 { background: linear-gradient(135deg,#7a1f2b,#9c2a38); }
.bg-iz2 { background: linear-gradient(135deg,#c99a2e,#b6841e); }
.bg-iz3 { background: linear-gradient(135deg,#5a4a1f,#3e3315); }
.bg-iz4 { background: linear-gradient(135deg,#dc3545,#b02a37); }

.table thead { background: #eef3f0; }

.btn-primary {
    background-color: var(--iz-primary);
    border-color: var(--iz-primary);
}
.btn-primary:hover {
    background-color: var(--iz-primary-dark);
    border-color: var(--iz-primary-dark);
}

.login-wrap {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--iz-primary) 0%, var(--iz-primary-dark) 100%);
}

.login-card {
    width: 380px;
    background: #fff;
    border-radius: 14px;
    padding: 34px 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.25);
}

.print-letterhead { display: none; }

@media print {
    .no-print { display: none !important; }
    .iz-sidebar, .iz-topbar { display: none !important; }
    .print-letterhead {
        display: block !important;
        text-align: center;
        border-bottom: 3px solid #7a1f2b;
        padding-bottom: 12px;
        margin-bottom: 18px;
    }
    .print-letterhead .logo { max-height: 48px; margin-bottom: 6px; }
    .print-letterhead h2 { color: #7a1f2b; font-size: 20px; margin: 4px 0 0; }
    .print-letterhead .addr { font-size: 11px; color: #666; }
    .print-letterhead .rtitle { margin-top: 6px; font-weight: 700; color: #7a1f2b; text-transform: uppercase; letter-spacing: .5px; font-size: 13px; }
}