:root {
    --app-bg: #f6f7f9;
    --app-border: #d9dee7;
    --app-sidebar: #ffffff;
    --app-text: #1f2937;
    --app-blue: #173b73;
}

body {
    background: var(--app-bg);
    color: var(--app-text);
}

.app-shell {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    min-height: 100vh;
}

.app-sidebar {
    background: var(--app-sidebar);
    border-right: 1px solid var(--app-border);
    color: var(--app-text);
    display: flex;
    flex-direction: column;
    gap: 22px;
    padding: 22px 18px;
}

.app-brand {
    display: block;
    text-decoration: none;
}

.app-brand img {
    display: block;
    height: 82px;
    object-fit: cover;
    object-position: center;
    width: 100%;
}

.app-sidebar .nav-link {
    border-radius: 6px;
    color: #334155;
    padding: 9px 10px;
}

.app-sidebar .nav-link:hover,
.app-sidebar .nav-link:focus {
    background: #eef5ff;
    color: var(--app-blue);
}

.app-main {
    min-width: 0;
    padding: 28px;
}

.auth-main {
    align-items: center;
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}

.auth-main:has(.validation-page) {
    align-items: center;
    padding: 20px;
}

.login-panel,
.validation-panel {
    background: #fff;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    margin-left: auto;
    margin-right: auto;
    max-width: 760px;
    padding: 28px;
    width: 100%;
}

.validation-page {
    max-width: 760px;
    width: 100%;
}

.validation-school-name {
    color: #1f2937;
    font-size: 24px;
    font-weight: 700;
    line-height: 1.15;
    margin-top: 4px;
}

.login-panel {
    max-width: 400px;
}

.login-brand-image {
    display: block;
    height: 96px;
    margin-bottom: 2px;
    object-fit: cover;
    object-position: center;
    width: 100%;
}

.validation-card-brand {
    align-items: flex-start;
    display: flex;
    gap: 20px;
    justify-content: space-between;
    margin-bottom: 22px;
}

.validation-brand-image {
    display: block;
    flex: 0 0 auto;
    height: 96px;
    margin-bottom: 2px;
    max-width: 343px;
    object-fit: cover;
    object-position: center;
    width: 100%;
}

.login-panel-options {
    display: grid;
    gap: 14px;
}

.login-option {
    align-items: center;
    background: #fff;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    color: var(--app-text);
    display: flex;
    font-size: 17px;
    font-weight: 650;
    gap: 14px;
    min-height: 58px;
    padding: 12px 14px;
    text-decoration: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

.login-option:hover,
.login-option:focus {
    border-color: #9eb4d6;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    color: var(--app-text);
    transform: translateY(-1px);
}

.login-option-disabled {
    background: #f3f4f6;
    color: #6b7280;
    pointer-events: none;
}

.login-option-icon {
    align-items: center;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    display: inline-flex;
    flex: 0 0 42px;
    height: 42px;
    justify-content: center;
}

.login-separator {
    align-items: center;
    color: #6b7280;
    display: flex;
    font-size: 14px;
    gap: 12px;
    margin: 18px 0;
}

.login-separator::before,
.login-separator::after {
    background: var(--app-border);
    content: "";
    flex: 1 1 auto;
    height: 1px;
}

.page-header {
    align-items: center;
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 20px;
}

.page-header h1 {
    font-size: 28px;
    margin: 0;
}

.panel,
.empty-state {
    background: #fff;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 18px;
}

.panel {
    margin-bottom: 18px;
}

.constancia-cards {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.action-card {
    background: #fff;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    color: inherit;
    display: block;
    min-height: 132px;
    padding: 18px;
    text-decoration: none;
}

.action-card:hover,
.action-card:focus {
    border-color: #9eb4d6;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
    color: inherit;
}

.action-card strong,
.action-card span {
    display: block;
}

.action-card span {
    color: #6b7280;
    margin-top: 8px;
}

.filters-bar {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.filters-bar .form-control {
    max-width: 420px;
}

.pagination-bar {
    align-items: center;
    display: flex;
    gap: 14px;
    justify-content: space-between;
    margin-top: 16px;
}

.app-table {
    background: #fff;
    border: 1px solid var(--app-border);
    font-size: 14px;
}

.app-table th {
    color: #4b5563;
    font-size: 12px;
    text-transform: uppercase;
}

.form-grid {
    display: grid;
    gap: 12px 14px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.form-wide {
    grid-column: 1 / -1;
}

.form-span-2 {
    grid-column: span 2;
}

.rich-table-grid {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ck-editor__editable {
    min-height: 220px;
}

.ck-content table {
    width: 100%;
}

.validation-header {
    align-items: flex-start;
    display: flex;
    gap: 16px;
    justify-content: space-between;
    margin-bottom: 18px;
}

.validation-body {
    margin-bottom: 18px;
}

.validation-body p {
    margin-bottom: 12px;
}

.validation-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 18px 0 8px;
}

.validation-body table {
    border-collapse: collapse;
    margin: 8px 0 18px;
    width: 100%;
}

.validation-body th,
.validation-body td {
    border: 1px solid var(--app-border);
    padding: 8px 10px;
    vertical-align: top;
}

.validation-body th {
    background: #f3f6fa;
    font-weight: 700;
}

.validation-key-form {
    margin-top: 22px;
    max-width: 360px;
}

.validation-actions {
    align-items: center;
    display: flex;
    gap: 12px;
    justify-content: space-between;
}

@media (max-width: 900px) {
    .app-shell,
    .form-grid,
    .constancia-cards,
    .rich-table-grid {
        grid-template-columns: 1fr;
    }

    .app-main {
        padding: 18px;
    }

    .form-span-2 {
        grid-column: 1 / -1;
    }

    .pagination-bar {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 560px) {
    .validation-actions {
        align-items: stretch;
        flex-direction: column;
    }

    .validation-card-brand {
        flex-direction: column;
        gap: 8px;
    }

    .validation-school-name {
        font-size: 22px;
        text-align: left;
    }
}