/* Blue Grammar School - Global Styles */

:root {
    --school-blue: #1361C8;
    --school-blue-dark: #0E4FA8;
    --school-red: #be434b;
    --school-red-dark: #a7353d;
    --school-text: #212529;
    --school-muted: #6c757d;
    --school-border: #dee2e6;
    --school-bg: #f7f9fc;
    --school-white: #ffffff;
    --school-radius: 8px;
    --school-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
}

/* Base */

html {
    font-size: 14px;
    position: relative;
    min-height: 100%;
    scroll-behavior: smooth;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

body {
    margin: 0;
    margin-bottom: 60px;
    color: var(--school-text);
    background: var(--school-bg);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

/* Typography */

h1, h2, h3, h4, h5, h6 {
    color: var(--school-text);
    font-weight: 600;
    line-height: 1.3;
}

a {
    color: var(--school-blue);
    text-decoration: none;
}

    a:hover {
        color: var(--school-blue-dark);
    }

/* Keyboard accessibility */

:focus-visible {
    outline: 2px solid var(--school-blue);
    outline-offset: 2px;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus,
.form-select:focus {
    box-shadow: 0 0 0 0.1rem var(--school-white), 0 0 0 0.25rem rgba(19, 97, 200, 0.45);
}

/* Bootstrap buttons */

.btn-primary {
    color: var(--school-white);
    background-color: var(--school-blue);
    border-color: var(--school-blue);
}

    .btn-primary:hover,
    .btn-primary:active {
        color: var(--school-white);
        background-color: var(--school-blue-dark);
        border-color: var(--school-blue-dark);
    }

.btn-danger {
    color: var(--school-white);
    background-color: var(--school-red);
    border-color: var(--school-red);
}

    .btn-danger:hover,
    .btn-danger:active {
        color: var(--school-white);
        background-color: var(--school-red-dark);
        border-color: var(--school-red-dark);
    }

/* Forms */

.form-control,
.form-select {
    border-color: #ced4da;
    border-radius: 6px;
}

    .form-control:focus,
    .form-select:focus {
        border-color: var(--school-blue);
    }

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Cards */

.card {
    border: 1px solid var(--school-border);
    border-radius: var(--school-radius);
    box-shadow: var(--school-shadow);
}

.card-header {
    background: #f1f5fb;
    border-bottom: 1px solid var(--school-border);
    font-weight: 600;
}

/* Tables */

.table {
    color: var(--school-text);
    vertical-align: middle;
}

    .table thead th {
        background: #f1f5fb;
        color: #344054;
        font-size: 0.875rem;
        font-weight: 700;
        white-space: nowrap;
    }

    .table > :not(caption) > * > * {
        padding: 0.8rem 1rem;
    }

.table-hover > tbody > tr:hover > * {
    background-color: #f5f8ff;
}

/* Validation and alerts */

.field-validation-error,
.validation-summary-errors {
    color: #b42318;
    font-size: 0.875rem;
}

.input-validation-error {
    border-color: #b42318 !important;
}

.alert {
    border-radius: var(--school-radius);
}

/* Shared layout helpers */

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

    .page-heading p {
        color: var(--school-muted);
        margin-bottom: 0;
    }

.section-spacing {
    margin-bottom: 1.5rem;
}

/* Responsive behavior */

img {
    max-width: 100%;
    height: auto;
}

@media (max-width: 767px) {
    body {
        font-size: 14px;
    }

    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .btn {
        max-width: 100%;
    }
}