/* 認証ページ用スタイル */

.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
}

.auth-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* 認証カード */
.auth-card {
    width: 100%;
    max-width: 450px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    position: relative;
    z-index: 1;
}

/* 認証ヘッダー */
.auth-header {
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
    padding: 2.5rem 2rem;
    text-align: center;
    border-bottom: 1px solid var(--border-primary);
}

.auth-icon {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 80px;
    height: 80px;
    background-color: var(--bg-card);
    border-radius: 50%;
    margin-bottom: 1rem;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    animation: pulse 2s infinite;
}

.auth-icon.player-icon {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
    }
}

.auth-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.auth-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* 認証フォーム */
.auth-form {
    padding: 2rem;
}

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

.auth-form .form-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.auth-form .form-control {
    background-color: var(--bg-secondary);
    border-color: var(--border-secondary);
    padding: 0.875rem 1rem;
}

.auth-form .form-control:focus {
    background-color: var(--bg-tertiary);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* フォームオプション */
.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.checkbox-label input[type="checkbox"] {
    margin-right: 0.5rem;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.forgot-link {
    color: var(--primary-color);
    font-size: 0.9rem;
    text-decoration: none;
}

.forgot-link:hover {
    text-decoration: underline;
}

/* フォームアクション */
.form-actions {
    margin-bottom: 1.5rem;
}

.form-actions .btn-block {
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* フォーム区切り */
.form-divider {
    position: relative;
    text-align: center;
    margin: 1.5rem 0;
}

.form-divider::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background-color: var(--border-secondary);
}

.form-divider span {
    position: relative;
    background-color: var(--bg-card);
    padding: 0 1rem;
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

/* フォームフッター */
.form-footer {
    text-align: center;
}

.form-footer p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

/* メッセージ */
.error-message,
.success-message {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin: 1rem 2rem 2rem;
    text-align: center;
    font-size: 0.95rem;
    animation: slideDown 0.3s ease;
}

.error-message {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--danger-color);
    color: var(--danger-color);
}

.success-message {
    background-color: rgba(34, 197, 94, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 認証リンク */
.auth-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.auth-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-default);
}

.auth-links a:hover {
    color: var(--primary-color);
}

.auth-links .separator {
    color: var(--text-tertiary);
}

/* 登録フォーム専用 */
.register-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.register-form .file-upload {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border: 2px dashed var(--border-primary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-default);
}

.register-form .file-upload:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--primary-color);
}

.register-form .file-upload input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.register-form .file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.register-form .file-upload-label svg {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
}

/* スポーツ選択 */
.sports-select {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.sport-option {
    position: relative;
}

.sport-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
}

.sport-option label {
    display: block;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-md);
    text-align: center;
    cursor: pointer;
    transition: var(--transition-default);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sport-option input:checked + label {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.sport-option label:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--primary-color);
}

/* レスポンシブ */
@media (max-width: 768px) {
    .auth-container {
        padding: 1rem;
    }
    
    .auth-card {
        max-width: 100%;
    }
    
    .auth-header {
        padding: 2rem 1.5rem;
    }
    
    .auth-form {
        padding: 1.5rem;
    }
    
    .register-form .form-row {
        grid-template-columns: 1fr;
    }
    
    .sports-select {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .form-options {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    
    .auth-links {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .auth-links .separator {
        display: none;
    }
    
    .sports-select {
        grid-template-columns: 1fr;
    }
}