/* ========================================= CSS RESET ========================================= */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ======================================= DESIGN TOKENS ======================================= */

:root {

    /* ================================= Primary Brand Colours ================================= */

    --color-primary: #0f172a;
    --color-primary-light: #1e293b;
    --color-primary-dark: #020617;

    /* ================================= Surface & Backgrounds ================================= */

    --color-background: #f8fafc;
    --color-surface: #ffffff;
    --color-surface-muted: #f1f5f9;

    /* ====================================== Text System ====================================== */

    --color-text: #0f172a;
    --color-text-muted: #64748b;
    --color-border: #cbd5e1;

    /* ======================================= Status ========================================== */

    --color-error: #dc2626;
    --color-error-light: #fef2f2;

    /* ======================================= Gradients ======================================= */

    --gradient-primary: linear-gradient(
        90deg,
        var(--color-primary),
        var(--color-primary-light)
    );

    /* ======================================== Shadows ======================================== */

    --shadow-sm: 0 2px 6px rgba(15, 23, 42, 0.08);
    --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.12);

    /* ========================================= Radii ========================================= */

    --radius-sm: 6px;
    --radius-md: 10px;

    /* ======================================== Layout ========================================= */

    --max-width: 1200px;

    /* ======================================== Motion ========================================= */

    --hover-transition: 0.2s ease;
    --hover-lift: translateY(-2px);
}

/* =================================== Global Element Styles =================================== */

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-family: "Montserrat", "Segoe UI", sans-serif;
    line-height: 1.5;
    background-color: var(--color-background);
    color: var(--color-text);
}

img {
    display: block;
    max-width: 100%;
}

button,
input,
textarea,
select {
    font: inherit;
}

/* ========================================= UTILITIES ========================================= */

.container {
    width: min(92%, var(--max-width));
    margin-inline: auto;
}

.card {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.card-hover {
    transition: var(--hover-transition);
}

.card-hover:hover {
    transform: var(--hover-lift);
    box-shadow: var(--shadow-md);
}

.link-detail {
    color: var(--color-primary);
    font-style: italic;
    text-decoration: none;
    transition: var(--hover-transition);
}

.link-detail:hover {
    text-decoration: underline;
    color: var(--color-primary-light);
}

/* =========================================== HEADER ========================================== */

.site-header {
    background: var(--gradient-primary);
    color: white;
    padding: 1rem 2rem;
    box-shadow: var(--shadow-sm);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.branding {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    width: 50px;
    height: 50px;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.main-nav a,
.main-nav button {
    border: none;
    background: transparent;
    color: white;
    text-decoration: none;
    font-size: 1rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: var(--hover-transition);
}

.main-nav a:hover,
.main-nav button:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* ============================================ MAIN =========================================== */

.site-content {
    flex: 1;
    padding: 2rem;
}

/* =========================================== FOOTER ========================================== */

.site-footer {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: auto;
}

/* ============================================ HERO =========================================== */

.hero {
    max-width: 800px;
    margin-inline: auto;
}

.hero-image {
    width: 100%;
    border-radius: var(--radius-md);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
}

.hero-content {
    text-align:center;
}

/* ========================================= PAGE HEADER ======================================= */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* =========================================== BUTTONS ========================================= */

.button,
form button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    transition: var(--hover-transition);
}

.button:hover,
form button:hover {
    transform: var(--hover-lift);
    box-shadow: var(--shadow-sm);
}

.button-edit {
    background: linear-gradient(90deg, #1d6f91, #0b4f6c);
}

.button-delete {
    background: linear-gradient(90deg, #c0392b, #e74c3c);
}

/* ============================================ TABLES ========================================= */

.table-wrapper {
    max-width: var(--max-width);
    margin: 0 auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.data-table th {
    background: #eef4f8;
    color: var(--color-primary);
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.data-table td {
    padding: 1rem;
    border-top: 1px solid var(--color-border);
}

.data-table tbody tr {
    transition: var(--hover-transition);
}

.data-table tbody tr:hover {
    background: rgba(11, 79, 108, 0.04);
}

.data-table td:last-child,
.data-table th:last-child {
    text-align: right;
}

/* ====================================== DETAIL & FORM CARDS ================================== */

.detail-card,
.form-container {
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    margin-bottom: 2rem;
}

.detail-card h3 {
    margin-bottom: 1rem;
}

/* ============================================= FORMS ========================================= */

form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

form label {
    display: block;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.form-container p {
    margin-bottom: 0.5rem;
}

form input,
form textarea,
form select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: white;
    transition: var(--hover-transition);
}

form textarea {
    resize: vertical;
    min-height: 120px;
}

form input:focus,
form textarea:focus,
form select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(11, 79, 108, 0.15);
}

form input[type="file"] {
    padding: 0.5rem 0;
}

/* ========================================= FORM HELPERS ====================================== */

.helptext {
    display: block;
    margin-top: 0.25rem;
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

.errorlist {
    list-style: none;
    background: var(--color-error-light);
    color: var(--color-error);
    border: 1px solid rgba(192, 57, 43, 0.2);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
}

input[type="checkbox"][name$="-clear"],
label[for$="_clear_id"] {
    display: none;
}

/* ========================================== STAT GRID ======================================== */

.grid-stats {
    display: grid;
    grid-template-columns: repeat(
        auto-fit,
        minmax(220px, 1fr)
    );
    gap: 1rem;
    margin-top: 2rem;
}

.stat-card {
    background: var(--color-surface);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--hover-transition);
}

.stat-card:hover {
    transform: var(--hover-lift);
    box-shadow: var(--shadow-md);
}

.stat-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: var(--color-primary);
}

.stat-card p {
    font-size: 2rem;
    font-weight: 700;
}

/* ===================================== RESPONSIVE DESIGN ===================================== */

@media (max-width: 768px) {

    .header-content,
    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .page-header h2 {
        width: 100%;
        text-align: center;
    }

    .main-nav {
        flex-direction: column;
        align-items: center;
        width: 100%;
        gap: 0.5rem;
    }

    .main-nav a,
    .main-nav button {
        width: 100%;
        text-align: center;
    }

    .site-header {
        padding: 1rem;
    }

    .site-content {
        padding: 1.25rem;
    }

    .detail-card,
    .form-container {
        padding: 1.25rem;
    }

    .table-wrapper {
        overflow-x: auto;
    }

    .data-table {
        min-width: 600px;
    }

    .button {
        width: 100%;
        justify-content: center;
    }

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.4rem;
    }

    h3 {
        font-size: 1.2rem;
    }
}