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

/* ── Variables thème clair ── */
:root {
    --bg-page:        #f5f5f5;
    --bg-surface:     #ffffff;
    --bg-surface-alt: #f8f9fa;
    --bg-hover:       #fafafa;

    --text-primary:   #333333;
    --text-secondary: #666666;
    --text-muted:     #444444;

    --border:         #dddddd;
    --border-light:   #eeeeee;
    --border-lighter: #f0f0f0;

    --navbar-bg:      #1a1a2e;
    --navbar-text:    #cccccc;

    --accent:         #2563eb;
    --accent-hover:   #1d4ed8;
    --danger:         #dc2626;
    --danger-hover:   #b91c1c;
    --success:        #16a34a;

    --shadow-sm:      0 1px 3px rgba(0, 0, 0, 0.10);
    --shadow-md:      0 4px 16px rgba(0, 0, 0, 0.10);

    --tab-border:     #dddddd;

    --error-bg:       #fee2e2;
    --error-border:   #fecaca;
    --error-text:     #dc2626;
}

/* ── Variables thème sombre ── */
:root[data-theme="dark"] {
        --bg-page:        #0f0f13;
        --bg-surface:     #1c1c24;
        --bg-surface-alt: #23232e;
        --bg-hover:       #25252f;

        --text-primary:   #e2e2e8;
        --text-secondary: #9999aa;
        --text-muted:     #b0b0be;

        --border:         #2e2e3e;
        --border-light:   #27272f;
        --border-lighter: #222230;

        --navbar-bg:      #12121a;
        --navbar-text:    #aaaabc;

        --accent:         #4f8ef7;
        --accent-hover:   #3b7de8;
        --danger:         #f87171;
        --danger-hover:   #ef4444;
        --success:        #4ade80;

        --shadow-sm:      0 1px 3px rgba(0, 0, 0, 0.40);
        --shadow-md:      0 4px 16px rgba(0, 0, 0, 0.50);

        --tab-border:     #2e2e3e;

        --error-bg:       #3b1010;
        --error-border:   #7f1d1d;
        --error-text:     #fca5a5;
}

/* ── Base ── */
body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
}

/* ── Layout ── */
.layout {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

/* ── Icônes thème : affiche l'icône vers lequel on va switcher ── */
:root[data-theme="dark"]     .icon-moon { display: none; }
:root[data-theme="dark"]     .icon-sun  { display: inline; }
:root:not([data-theme="dark"]) .icon-sun  { display: none; }
:root:not([data-theme="dark"]) .icon-moon { display: inline; }

/* ── Navbar ── */
.navbar {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--navbar-bg);
    color: white;
    padding: 0.75rem 2rem;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.2rem;
    margin-right: auto;
}

.navbar-links {
    display: flex;
    gap: 1rem;
}

.navbar-links a {
    color: var(--navbar-text);
    text-decoration: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: background 0.2s;
}

.navbar-links a:hover,
.navbar-links a.active {
    background: rgba(255, 255, 255, 0.12);
    color: white;
}

.btn-theme {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--navbar-text);
    cursor: pointer;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    font-size: 1rem;
    line-height: 1;
    transition: background 0.2s;
}

.btn-theme:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.navbar-logout button {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--navbar-text);
    cursor: pointer;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    transition: background 0.2s;
}

.navbar-logout button:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* ── Page header ── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    margin: 0;
    font-size: 1.75rem;
}

/* ── Buttons ── */
.btn {
    display: inline-block;
    padding: 0.45rem 1rem;
    border-radius: 5px;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: background 0.15s;
}

.btn:hover { background: var(--bg-surface-alt); }

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

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

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

.btn-danger:hover { background: var(--danger-hover); border-color: var(--danger-hover); }

.btn-sm {
    padding: 0.25rem 0.6rem;
    font-size: 0.8rem;
}

/* ── Tabs ── */
.tabs {
    display: flex;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--tab-border);
}

.tab {
    background: none;
    border: none;
    padding: 0.6rem 1.25rem;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s;
}

.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* ── Table ── */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-surface);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.data-table th {
    background: var(--bg-surface-alt);
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-lighter);
    vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-hover); }

/* ── Forms ── */
.form-container {
    background: var(--bg-surface);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    max-width: 560px;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 0.95rem;
    outline: none;
    background: var(--bg-surface);
    color: var(--text-primary);
    transition: border-color 0.15s;
}

.form-control:focus { border-color: var(--accent); }

textarea.form-control { resize: vertical; }

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* ── Login ── */
.login-container {
    max-width: 380px;
    margin: 6rem auto;
    background: var(--bg-surface);
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

.login-container h1 {
    margin: 0 0 0.25rem;
    font-size: 1.75rem;
    color: var(--text-primary);
}

.login-container h2 {
    margin: 0 0 1.5rem;
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-secondary);
}

.error {
    background: var(--error-bg);
    border: 1px solid var(--error-border);
    color: var(--error-text);
    padding: 0.5rem 0.75rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    font-size: 0.875rem;
}

/* ── Validation ── */
.valid.modified:not([type=checkbox]) { outline: 1px solid var(--success); }
.invalid { outline: 1px solid var(--danger); }
.validation-message { color: var(--danger); font-size: 0.8rem; margin-top: 0.25rem; }

/* ── Error boundary ── */
.blazor-error-boundary {
    background: #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after { content: "An error has occurred."; }

#blazor-error-ui {
    display: none;
    position: fixed;
    bottom: 0;
    width: 100%;
    background: #ffcc00;
    padding: 0.75rem 1rem;
    text-align: center;
}