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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: #111;
    background: #fff;
    line-height: 1.6;
}

a {
    color: #2563eb;
    text-decoration: none;
}

a:hover {
    color: #1d4ed8;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 960px;
    margin: 0 auto;
    padding: 16px 24px;
    border-bottom: 1px solid #e5e5e5;
}

.nav-logo {
    font-size: 20px;
    font-weight: 700;
    color: #111;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav-links a {
    font-size: 14px;
    color: #6b7280;
}

.nav-links a:hover {
    color: #2563eb;
}

.nav-user {
    font-size: 14px;
    color: #6b7280;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 32px 24px;
}

.container > h2,
.delete-box > h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: #111;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 768px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .card-grid {
        grid-template-columns: 1fr;
    }

    .nav {
        flex-direction: column;
        gap: 12px;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }
}

.card {
    background: #f9fafb;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: #111;
    margin: 0;
}

.card-meta {
    font-size: 14px;
    color: #6b7280;
}

.card-actions {
    margin-top: 8px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn:focus-visible {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

.btn-primary {
    background: #2563eb;
    color: #fff;
}

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-secondary {
    background: #fff;
    color: #2563eb;
    border: 1px solid #2563eb;
}

.btn-secondary:hover {
    background: #eff6ff;
}

.btn-danger {
    background: #dc2626;
    color: #fff;
}

.btn-danger:hover {
    background: #b91c1c;
}

.form-card {
    max-width: 480px;
    margin: 0 auto;
    background: #f9fafb;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 32px;
}

.form-card p {
    margin-bottom: 16px;
}

.form-card label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #111;
    margin-bottom: 4px;
}

.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="password"],
.form-card input[type="datetime-local"],
.form-card textarea,
.form-card select {
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    border: 1px solid #e5e5e5;
    border-radius: 6px;
    background: #fff;
    color: #111;
    font-family: inherit;
}

.form-card input:focus,
.form-card textarea:focus,
.form-card select:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.form-card textarea {
    min-height: 100px;
    resize: vertical;
}

.form-card .helptext {
    font-size: 12px;
    color: #6b7280;
    margin-top: 2px;
}

.form-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.form-card .errorlist {
    list-style: none;
    padding: 0;
    margin: 0 0 8px 0;
}

.form-card .errorlist li {
    color: #dc2626;
    font-size: 13px;
}

.form-actions {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    align-items: center;
}

.delete-box {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
    background: #f9fafb;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 32px;
}

.delete-box p {
    font-size: 16px;
    margin-bottom: 24px;
    color: #111;
}

.delete-box .form-actions {
    justify-content: center;
}

.section {
    margin-bottom: 40px;
}

.empty-msg {
    color: #6b7280;
    font-size: 14px;
}

.auth-footer {
    margin-top: 16px;
    font-size: 14px;
    color: #6b7280;
    text-align: center;
}