:root {
    --app-primary: #3157d5;
    --app-primary-dark: #2443aa;
    --app-ink: #172033;
    --app-muted: #667085;
    --app-border: #e4e7ec;
    --app-surface: #ffffff;
    --app-background: #f7f8fb;
}

html {
    min-height: 100%;
}

body {
    min-height: 100vh;
    color: var(--app-ink);
    background: var(--app-background);
    font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
}

.app-header {
    position: relative;
    z-index: 1030;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    color: var(--app-ink);
    font-size: 1.05rem;
    font-weight: 750;
    letter-spacing: -.01em;
}

.brand:hover {
    color: var(--app-primary);
}

.brand-mark {
    display: inline-grid;
    width: 2.25rem;
    height: 2.25rem;
    place-items: center;
    color: #fff;
    background: var(--app-primary);
    border-radius: .7rem;
}

.btn-primary {
    --bs-btn-bg: var(--app-primary);
    --bs-btn-border-color: var(--app-primary);
    --bs-btn-hover-bg: var(--app-primary-dark);
    --bs-btn-hover-border-color: var(--app-primary-dark);
}

.page-heading {
    max-width: 46rem;
    margin-bottom: 1.5rem;
}

.page-heading h1 {
    margin-bottom: .45rem;
    font-size: clamp(1.75rem, 3vw, 2.35rem);
    font-weight: 760;
    letter-spacing: -.035em;
}

.page-heading p {
    color: var(--app-muted);
}

.auth-shell {
    width: min(100%, 31rem);
    margin: 1.5rem auto 3rem;
}

.auth-card,
.data-card {
    background: var(--app-surface);
    border: 1px solid var(--app-border);
    border-radius: 1rem;
    box-shadow: 0 12px 32px rgba(16, 24, 40, .07);
}

.auth-card {
    padding: clamp(1.35rem, 4vw, 2.25rem);
}

.form-label {
    color: #344054;
    font-weight: 650;
}

.form-control {
    min-height: 2.8rem;
    border-color: #d0d5dd;
}

.form-control:focus {
    border-color: #91a4ed;
    box-shadow: 0 0 0 .2rem rgba(49, 87, 213, .13);
}

.validation-summary-errors,
.field-validation-error {
    color: #b42318;
}

.validation-summary-errors ul {
    margin-bottom: 0;
    padding-left: 1.15rem;
}

.field-validation-error {
    display: block;
    margin-top: .35rem;
    font-size: .875rem;
}

.toolbar-sticky {
    position: sticky;
    top: .75rem;
    z-index: 1020;
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-bottom: 1rem;
    padding: .75rem;
    background: rgba(255, 255, 255, .96);
    border: 1px solid var(--app-border);
    border-radius: .85rem;
    box-shadow: 0 8px 24px rgba(16, 24, 40, .08);
}

.toolbar-sticky .btn.disabled,
.toolbar-sticky .btn:disabled {
    pointer-events: none;
    opacity: .45;
}

.data-card {
    overflow: hidden;
}

.user-table {
    margin-bottom: 0;
}

.user-table th {
    padding: .9rem 1rem;
    color: #475467;
    background: #f9fafb;
    border-bottom-color: var(--app-border);
    font-size: .78rem;
    font-weight: 750;
    letter-spacing: .04em;
    text-transform: uppercase;
    white-space: nowrap;
}

.user-table td {
    padding: 1rem;
    border-bottom-color: var(--app-border);
    vertical-align: middle;
}

.user-table tbody tr:last-child td {
    border-bottom: 0;
}

.select-column {
    width: 3.25rem;
    text-align: center;
}

.user-name {
    font-weight: 680;
}

.user-email,
.date-secondary {
    color: var(--app-muted);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: .3rem .65rem;
    font-size: .78rem;
    font-weight: 720;
}

.status-active {
    color: #067647;
    background: #ecfdf3;
}

.status-unverified {
    color: #b54708;
    background: #fffaeb;
}

.status-blocked {
    color: #b42318;
    background: #fef3f2;
}

.empty-state {
    padding: 3.5rem 1rem;
    color: var(--app-muted);
    text-align: center;
}

.verification-box {
    padding: 1rem;
    background: #f0f5ff;
    border: 1px solid #c7d7fe;
    border-radius: .8rem;
}

@media (max-width: 767.98px) {
    .user-table {
        min-width: 760px;
    }

    .toolbar-sticky {
        top: .4rem;
    }
}