/* style.css */
body {
    font-family: "Helvetica Neue", sans-serif;
    background-color: #f8f9fa;
    margin: 40px;
    color: #333;
}

h1 {
    text-align: center;
    color: #4a4a4a;
}

table {
    border-collapse: collapse;
    width: 100%;
    background-color: white;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

th, td {
    border: 1px solid #dee2e6;
    padding: 12px 16px;
    text-align: left;
}

th {
    background-color: #007bff;
    color: white;
}

tr:hover {
    background-color: #f1f1f1;
}

form {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

label {
    display: block;
    margin-top: 20px;
    font-weight: bold;
}


input[type="date"],
input[type="time"],
select {
    width: 100%;
    padding: 10px;
    margin-top: 5px;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
}

button {
    margin-top: 20px;
    padding: 10px 20px;
    background-color: #28a745;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
}

button:hover {
    background-color: #218838;
}

.fade-in {
    opacity: 0;
    transform: translateY(10px);
    animation: fadeInUp 0.5s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.link-container.fixed-grid {
    max-width: 600px;
    margin: 40px auto;
    display: grid;
    grid-template-columns: repeat(2, 1fr); 
    gap: 20px;
}

.link-card {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 30px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    color: #007bff;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    min-height: 100px;
    transition: background-color 0.2s, transform 0.2s;
}

.link-card:hover {
    background-color: #e9f5ff;
    transform: translateY(-4px);
}

h3{
    text-align: center;
}

.return-button {
    padding: 8px 16px;
    background-color: #dc3545; 
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s ease;
}

.return-button:hover {
    background-color: #c82333;
}

.toast-notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #28a745;
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    font-size: 16px;
    z-index: 9999;
    animation: fadeInOut 4s ease-in-out forwards;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translateY(-10px); }
    10% { opacity: 1; transform: translateY(0); }
    90% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(-10px); }
}

.danger-button {
    background-color: #dc3545;
    color: white;
    padding: 8px 14px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
}


.danger-button:hover {
    background-color: #c82333;
}

/* ログイン・登録フォーム用スタイル */
.auth-form {
    max-width: 400px;
    margin: 40px auto;
    padding: 30px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.auth-form h1 {
    margin-bottom: 30px;
    font-size: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #4a4a4a;
}

.form-group input {
    width: 100%;
    padding-top: 8px;
    padding-bottom: 8px;
    border: 1px solid #dee2e6;
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.2s;
}

.form-group input:focus {
    border-color: #007bff;
    outline: none;
    box-shadow: 0 0 0 3px rgba(0,123,255,0.1);
}

.error {
    color: #dc3545;
    margin-bottom: 20px;
    padding: 10px;
    background-color: #fff5f5;
    border-radius: 6px;
    border: 1px solid #fcc;
}

.success {
    color: #28a745;
    margin-bottom: 20px;
    padding: 10px;
    background-color: #f4fff5;
    border-radius: 6px;
    border: 1px solid #cfc;
}

.user-info {
    text-align: right;
    padding: 15px 20px;
    background-color: white;
    margin-bottom: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.logout-btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #dc3545;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    margin-left: 15px;
    transition: background-color 0.2s;
}

.logout-btn:hover {
    background-color: #c82333;
    text-decoration: none;
}

.auth-links {
    text-align: center;
    margin-top: 20px;
}

.auth-links a {
    color: #007bff;
    text-decoration: none;
}

.auth-links a:hover {
    text-decoration: underline;
}

.login-btn {
    display: inline-block;
    padding: 8px 16px;
    background-color: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    margin-left: 15px;
    transition: background-color 0.2s;
}

.login-btn:hover {
    background-color: #0056b3;
    text-decoration: none;
    color: white;
}

.cancel-link {
    color: #6c757d;
    text-decoration: none;
    margin-top: 10px;
    display: inline-block;
}

.cancel-link:hover {
    color: #5a6268;
    text-decoration: underline;
}