:root {
    --brand-primary: #1565C0;
    --brand-secondary: #1976D2;
    --brand-accent: #42A5F5;
    --brand-background: #F5F9FC;
    --brand-success: #2E7D32;
    --brand-warning: #F9A825;
    --brand-danger: #D32F2F;
    color-scheme: light;
}

/* Force readable colors on native selects: some Android WebViews/Chrome
   apply forced-dark-mode to <select>/<option> popups when the OS is in
   dark mode, which can render option text invisible against the popup
   background. Pinning color-scheme above plus explicit colors here
   keeps the dropdown text visible regardless of OS theme. */
.form-select {
    color: #212529;
    background-color: #fff;
}

body {
    background-color: var(--brand-background);
}

.navbar-brand-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    /*background: var(--brand-primary);*/
    color: #000;
    font-weight: 700;
    margin-right: 8px;
}

.navbar-d7 {
    background-color: var(--brand-primary) !important;
}

.card-kpi {
    border: none;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(21, 101, 192, 0.08);
    position: relative;
    overflow: hidden;
    border-top: 4px solid var(--kpi-color, var(--brand-primary));
    transition: transform .15s ease, box-shadow .15s ease;
}

.card-kpi:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(21, 101, 192, 0.16);
}

.card-kpi .kpi-value {
    font-size: 1.6rem;
    font-weight: 700;
}

.kpi-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    background: color-mix(in srgb, var(--kpi-color, var(--brand-primary)) 15%, transparent);
    color: var(--kpi-color, var(--brand-primary));
    margin-bottom: .5rem;
}

.chart-card {
    border: none;
    border-radius: 14px;
    box-shadow: 0 2px 10px rgba(21, 101, 192, 0.08);
}

.chart-card .card-header {
    background: transparent;
    border-bottom: 1px solid rgba(21, 101, 192, 0.08);
    font-weight: 600;
    color: var(--brand-primary);
}

.btn-primary {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
}

.btn-success {
    background-color: var(--brand-success);
    border-color: var(--brand-success);
}

.btn-lg-touch {
    min-height: 48px;
    font-size: 1.05rem;
}

.badge-due { background-color: var(--brand-warning); color: #1a1a1a; }
.badge-late { background-color: var(--brand-danger); color: #fff; }
.badge-paid { background-color: var(--brand-success); color: #fff; }

.rounded-card {
    border-radius: 14px;
}

/* Mobile-first list toggle: cards on mobile, table on desktop */
.list-cards { display: block; }
.list-table { display: none; }

@media (min-width: 768px) {
    .list-cards { display: none; }
    .list-table { display: block; }
}

/* ---- Login / auth pages ---- */
.login-body {
    min-height: 100vh;
    padding: 2rem 1rem;
    background: linear-gradient(160deg, var(--brand-primary) 0%, var(--brand-secondary) 45%, var(--brand-accent) 100%);
    background-attachment: fixed;
}

.login-card {
    border-radius: 20px;
    animation: login-card-in .35s ease-out;
}

@keyframes login-card-in {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

.login-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    border-radius: 18px;
    background: color-mix(in srgb, var(--brand-primary) 10%, transparent);
    box-shadow: 0 4px 14px rgba(21, 101, 192, 0.18);
}

.login-badge img {
    border-radius: 10px;
}

.login-input-group .input-group-text {
    background: #fff;
    border-right: none;
    color: var(--brand-primary);
}

.login-input-group .form-control {
    border-left: none;
}

.login-input-group .form-control:focus {
    box-shadow: none;
    border-color: #ced4da;
}

.login-input-group:focus-within .input-group-text,
.login-input-group:focus-within .form-control {
    border-color: var(--brand-accent);
}

.login-password-toggle {
    background: #fff;
    border-left: none;
    cursor: pointer;
    color: #6c757d;
}

/* Prevent iOS auto-zoom-on-focus by keeping inputs at >=16px */
.login-input-group .form-control {
    font-size: 16px;
}

/* ---- Error pages (e.g. 419 Page Expired) ---- */
.error-body {
    min-height: 100vh;
    padding: 2rem 1rem;
    background: linear-gradient(160deg, var(--brand-primary) 0%, var(--brand-secondary) 45%, var(--brand-accent) 100%);
}

.error-card {
    border-radius: 20px;
}

.error-icon {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    background: color-mix(in srgb, var(--brand-warning) 18%, transparent);
    color: var(--brand-warning);
}